Nuclear Science References (NSR)

NUCLEAR REACTIONS ⁵⁷Fe, ⁵⁹Co(⁶Li, α), E=37, 33 MeV; measured reaction products, Eα, Iα; deduced proton decay probabilities (branching ratios), σ, Comparison with ENDF/B-VIII.0, JEFF-3.3, JENDL-5, ROSFONFD-2010 libraries, TALYS and PACE4 calculations. BARC-TIFR Pelletron Linac Accelerator Facility, Mumbai.

doi: 10.1140/epja/s10050-023-01099-0
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2023MO26 Eur.Phys.J. A 59, 234 (2023)

G.Mohanto, A.Parihari, Y.K.Gupta, A.Pal, A.Gandhi, S.De, K.Ramachandran, E.T.Mirgule, B.Srinivasan, K.Kalita, A.Kumar, N.K.Deb, K.Rani, A.Tejaswi, C.Vadagama, V.Bharud, L.S.Danu, B.J.Roy, M.Kushwaha, B.K.Nayak, A.Saxena

Sensitivity of β₄ values extracted from quasi elastic barrier distribution to the 2n transfer channel

NUCLEAR REACTIONS ¹⁷⁶Yb(¹⁶O, X), E=54-84 MeV; measured reaction products; deduced σ(E), the Fusion Barrier Distributions (FBD), impact of deformation parameters on experimental barrier distribution. The BARC-TIFR Pelletron LINAC facility, Mumbai.

doi: 10.1140/epja/s10050-023-01143-z
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2023SA23 Phys.Rev. C 107, L061601 (2023)

S.Santra, A.Pal, D.Chattopadhyay, A.Kundu, P.C.Rout, R.Gandhi, A.Baishya, T.Santhosh, K.Ramachandran, R.Tripathi, B.J.Roy, T.N.Nag, G.Mohanto, S.De, B.K.Nayak, S.Kailas

Shell effect on fission fragment mass distribution at E^*_cn up to 70 MeV: Role of multichance fission

NUCLEAR REACTIONS ²³⁸U(¹¹B, X)²⁴⁹Bk, E=53-87.4 MeV; measured fission fragments from compound nuclei, (fragment)(fragment)-coin; deduced fission fragments mass distribution, total kinetic energies (TKE), mass-TKE correlations, ratio of asymmetric to symmetric contributions. Systematics on the excitation energy dependence of asymmetric fission contribution for fission of ²⁴¹Np, ²⁴²Pu, ²⁴⁷Cf, ²⁵⁰Cf, ²⁴⁹Bk. Comparison to calculations performed with semiempirical model code GEF. Investigated the manifestation of the fragment shell effect in the integral mass distributions. Two position sensitive multiwire proportional counters (MWPCs) at 14-UD BARC-TIFR Pelletron-Linac facility (Mumbai).

doi: 10.1103/PhysRevC.107.L061601
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2023TA12 Phys.Rev. C 107, 054601 (2023)

T.Tanaka, D.J.Hinde, M.Dasgupta, E.Williams, K.Vo-Phuoc, C.Simenel, E.C.Simpson, D.Y.Jeung, I.P.Carter, K.J.Cook, N.R.Lobanov, D.H.Luong, C.Palshetkar, D.C.Rafferty, K.Ramachandran

Competition between fusion and quasifission in the angular momentum dependent dynamics of heavy element synthesis reactions

NUCLEAR REACTIONS ¹⁹⁶Pt(⁵⁴Cr, X), E(cm)=209.5, 215.7, 219.0, 223.8 MeV;¹⁹⁸Pt(⁵²Cr, X), E(cm)=213.4, 218.1, 222.9, 226.7 MeV; measured reaction products; deduced capture σ(E), fission and scattering σ(θ), dependence of capture σ on the angular momentum, fragments angular momentum distribution, correlated distributions of mass and angle (MADs) of the fragments, fragments total kinetic energies, ratio of symmetric component to total fission component (quasifission and fusion-fission). ANU CUBE detector system consisting of two large-area position-sensitive MWPCs at 14UD tandem electrostatic accelerator of the Australian National University Heavy Ion Accelerator Facility.

doi: 10.1103/PhysRevC.107.054601
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2022BH07 Phys.Rev. C 106, 064612 (2022)

S.Bhattacharjee, P.Biswas, A.Gupta, M.K.Pradhan, N.Deshmukh, P.Basu, V.V.Parkar, S.Santra, K.Ramachandran, A.Chatterjee, S.Roy, A.Mukherjee

Systematic investigation of channel-coupling effects on elastic, inelastic, and neutron-transfer channels in ⁶Li+¹⁵⁹Tb

NUCLEAR REACTIONS ¹⁵⁹Tb(⁶Li, ⁶Li), (⁶Li, ⁷Li), E= 25, 27, 30, 35 MeV; measured reaction product, angular distributions; deduced elastic and quasielastic scattering σ(θ, E), 1n pickup reaction σ(θ, E), optical model potential parameters, spectroscopic factors for ¹⁵⁸Tb+n and ⁶Li+n conigurations. Comparison to finite-range coupled-channel Born approximation (CCBA) calculations.Four Silicon surface barrier telescope detectors at 14UD BARC-TIFR Pelletron Accelerator (Mumbai, India).

doi: 10.1103/PhysRevC.106.064612
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2022DH03 Phys.Rev. C 106, 014616 (2022)

S.Dhuri, K.Mahata, A.Shrivastava, K.Ramachandran, S.K.Pandit, V.Kumar, V.V.Parkar, P.C.Rout, A.Kumar, A.Chavan, S.Kaur, T.Santhosh

Measurement of mass and total kinetic energy distributions for the ¹²C + ¹⁷⁴Lu system

NUCLEAR REACTIONS ¹⁷⁵Lu(¹²C, F), E=58, 65, 70, 75 MeV; measured reaction products; deduced fission fragment mass and total kinetic energy (TKE) distributions. Comparison to the systematics based on liquid drop (LD) behavior. Two position-sensitive multiwire proportional chambers (MWPCs) at BARC-TIFR Pelletron-LINAC facility, Mumbai.

doi: 10.1103/PhysRevC.106.014616
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2022GU19 Phys.Lett. B 834, 137452 (2022)

Y.K.Gupta, G.K.Prajapati, B.V.John, B.N.Joshi, L.S.Danu, S.Dubey, S.Mukhopadhyay, N.Kumar, K.Mahata, K.Ramachandran, A.Jhingan, M.Kumar, N.Deshmukh, A.S.Pradeep, B.K.Nayak, D.C.Biswas

New signature of non-equilibrium fission from pre-scission α-particle emission

NUCLEAR REACTIONS ²³²Th(¹⁶O, F)⁴H, E=96 MeV; measured reaction products, Eα, Iα, Ep, Ip, Eγ, Iγ; deduced pre-scission α-particle multiplicity spectra, fission time. Comparison with statistical model calculations. BARC-TIFR 14-MV Pelletron accelerator facility at Mumbai.

doi: 10.1016/j.physletb.2022.137452
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2022KU27 Phys.Rev. C 106, 024602 (2022)

H.Kumawat, M.Prasanna, V.V.Parkar, C.Joshi, A.Kundu, A.Pal, K.Ramachandran, D.Dutta, S.Santra, S.Kailas

Elastic scattering and boron, lithium, and α-particle production in the ⁹Be + ⁵¹V reaction

NUCLEAR REACTIONS ⁵¹V(⁹Be, ⁹Be), (⁹Be, αX), (⁹Be, α), (⁹Be, p)⁷Li, (⁹Be, d)⁸Li, (⁹Be, p)¹⁰B, (⁹Be, d)¹¹B, (⁹Be, X) E=26, 28 MeV; measured reaction products, angular distributions, Eα, Iα; deduced σ(θ), direct and compound α, Lithium and Boron production σ(θ). Comparison to continuum-discretized-coupled-channels (CDCC) and coupled reaction channels (CRC) calculations. Ten solid state silicon surface barrier telescope detectors at 14 UD BARC-TIFR Pelletron-Linac accelerator facility (Mumbai, India).

doi: 10.1103/PhysRevC.106.024602
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2022MO12 Phys.Rev. C 105, 034607 (2022)

G.Mohanto, P.C.Rout, K.Ramachandran, K.Mahata, E.T.Mirgule, B.Srinivasan, A.Kundu, A.Baishya, R.Gandhi, T.Santhosh, A.Pal, S.Joshi, S.Santra, D.Patel, PrashantN.Patil, S.P.Behera, P.Yashwantrao, N.K.Mishra, D.Dutta, A.Saxena, B.K.Nayak

Probing collective enhancement in nuclear level density with evaporation α particle spectra

NUCLEAR REACTIONS ¹¹⁶Sn, ¹⁵⁹Tb(¹²C, X), E=48-64 MeV; measured Eα, Iα, En, In, nα-coin; deduced σ(θ, E) for α-production channel. Comparison with statistical model calculations using the code CASCADE with fusion cross-section obtained from coupled channel code CCFULL. Studied the effect of collective enhancement of nuclear level density fadeout inclusion in the calculations on the correct description of the experimental spectra. BARC-TIFR Pelletron-Linac facility.

doi: 10.1103/PhysRevC.105.034607
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2022RO09 Phys.Rev. C 105, 044611 (2022)

B.J.Roy, S.Santra, A.Pal, H.Kumawat, S.K.Pandit, V.V.Parkar, K.Ramachandran, K.Mahata, K.Sekizawa

Reaction mechanism study for multinucleon transfer processes in collisions of spherical and deformed nuclei at energies near and above the Coulomb barrier: The ¹⁶O + ¹⁵⁴Sm reaction

NUCLEAR REACTIONS ¹⁵⁴Sm(¹⁶O, X)⁶Li/⁷Li/¹⁰B/¹¹B/¹²C/¹³C/¹³N/¹⁴N/¹⁵N/⁹Be/¹⁶O/¹⁷O/¹⁸O, E=85, 134 MeV; measured reaction products, projectile-like fragments, angular distributions; deduced σ(θ), σ(E), Q, total kinetic energy loss (TKEL) by fragments, optical potential parameters. Studied the orientation effect in multinucleon transfer processes. Compared with theoretical calculations based on time-dependent Hartree-Fock (TDHF)combined with a statistical model, GEMINI++.BARC-TIFR Pelletron-Linac facility.

doi: 10.1103/PhysRevC.105.044611
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2021BH14 Phys.Rev. C 104, 054607 (2021)

S.Bhattacharjee, A.Mukherjee, A.Gupta, R.Santra, D.Chattopadhyay, N.Deshmukh, S.Dhuri, S.Gupta, V.V.Parkar, S.K.Pandit, K.Ramachandran, K.Mahata, A.Shrivastava, R.Pachuau, S.Rathi

Fusion of ¹⁶O + ¹⁶⁵Ho at deep sub-barrier energies

NUCLEAR REACTIONS ¹⁶⁵Ho(¹⁶O, 3nα)¹⁷⁴Ta, (¹⁶O, 5n)¹⁷⁶Re, (¹⁶O, 4n)¹⁷⁷Re, (¹⁶O, 3n)¹⁷⁸Re, E=62-85 MeV; measured evaporation residues (ERs) by off-line γ-ray spectroscopy, Eγ, Iγ from decays of evaporation residues, σ(E) at 14UD BARC-TIFR Pelletron-LINAC facility; deduced fusion σ(E) and compared with σ(E) results of earlier experiments, astrophysical S factor. Comparison with coupled channel (CC) calculations using Woods-Saxon potential using code PACE4, fusion hindrance and compared with prediction from adiabatic model; analyzed previous experimental results for ¹⁹F+¹⁶⁵Ho, ⁷Li+¹⁶⁵Ho, ¹²C+¹⁹⁸Pt, ¹⁶O+²⁰⁸Pb, ²⁸Si+⁶⁴Ni, ¹⁶O+²⁰⁸Pb, ³²S+⁸⁹Y, ³⁶S+⁶⁴Ni, ⁴⁰Ca+⁴⁰Ca, ⁴⁰Ca+⁴⁸Ca, and ⁴⁸Ca+⁴⁸Ca systems. ¹⁷⁸Re; measured T_1/2 of the decay of the g.s.

doi: 10.1103/PhysRevC.104.054607
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2021BI08 Phys.Rev. C 104, 034620 (2021)

P.Biswas, A.Mukherjee, S.Bhattacharjee, D.Chattopadhyay, S.Roy, S.Santra, S.K.Pandit, K.Ramachandran, K.Mahata, A.Shrivastava

Quasielastic backscattering and barrier distribution for the weakly bound projectile ⁶Li on ¹⁵⁹Tb

NUCLEAR REACTIONS ¹⁵⁹Tb(⁶Li, ⁶Li'), (⁶Li, X), E=17-33 MeV; measured charged-particle spectra, E-ΔE spectrum, σ(E) using Si detector telescopes at 14UD BARC-TIFR Pelletron-Linac Facility; deduced quasielastic excitation function and quasielastic barrier distributions and compared with FRESCO calculations, excluding and including α particles, production σ(E), and compared with the DWBA calculations. Discussed α-breakup threshold of the nucleus ⁶Li.

doi: 10.1103/PhysRevC.104.034620
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2021JE02 Phys.Rev. C 103, 034603 (2021)

D.Y.Jeung, D.J.Hinde, E.Williams, M.Dasgupta, E.C.Simpson, R.du Rietz, D.H.Luong, R.Rafiei, M.Evers, I.P.Carter, K.Ramachandran, C.Palshetkar, D.C.Rafferty, C.Simenel, A.Wakhle

Energy dissipation and suppression of capture cross sections in heavy ion reactions

NUCLEAR REACTIONS ²³²Th(¹⁸O, X), (³⁰Si, X), (³⁴S, X), (⁴⁰Ca, X), E(cm)=145-203 MeV; measured binary reaction products, including pairs of fission fragments, scattered beam particles and recoils in coincidence, and σ(θ) using the CUBE spectrometer at the 14UD tandem accelerator of Australian National University Heavy Ion Accelerator Facility; deduced distributions of the source velocity components of the fissioning nuclei, mass angle distributions (MADs), CC capture cross sections, full momentum transfer (FMT) fission cross sections, ratio of sequential fission to capture-fission, capture barriers. Comparison with coupled-channel (CC) calculations using CCFULL code; discussed sequential and total fission cross sections.

doi: 10.1103/PhysRevC.103.034603
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2021KA37 Phys.Rev. C 104, 024615 (2021)

M.Kaushik, S.K.Pandit, V.V.Parkar, G.Gupta, S.Thakur, V.Nanal, H.Krishnamoorthy, A.Shrivastava, C.S.Palshetkar, K.Mahata, K.Ramachandran, S.Pal, R.G.Pillay, P.P.Singh

Investigating neutron transfer in the ⁹Be + ¹⁹⁷Au system

NUCLEAR REACTIONS ¹⁹⁷Au(⁹Be, ⁸Be)¹⁹⁸Au, (⁹Be, ¹⁰Be)¹⁹⁶Au, (⁹Be, X)¹⁹⁹Tl/²⁰⁰Tl/²⁰¹Bi/²⁰²Bi/²⁰³Bi, E=30-47 MeV from BARC-TIFR Pelletron Linac Facility, Mumbai; measured off-line Eγ, Iγ from the irradiated target; deduced σ(E) for one-neutron stripping and pickup reactions, complete-fusion (CF) and incomplete fusion (ICF). Comparison with coupled-reaction channel (CRC) calculations. ¹⁹⁷Au(⁶Li, ⁵Li), (⁶Li, ⁷Li), (⁷Li, ⁶Li), (⁷Li, ⁵Li), (⁶Li, X), (⁷Li, X), E(cm)=20-44 MeV; analyzed previous data for σ(E) for n-transfer, CF and ICF using CRC calculations.

doi: 10.1103/PhysRevC.104.024615
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6403.

2021KA41 Eur.Phys.J. A 57, 320 (2021)

M.Kaushik, G.Gupta, V.V.Parkar, S.K.Pandit, S.Thakur, V.Nanal, A.Shrivastava, R.G.Pillay, H.Krishnamoorthy, K.Mahata, S.Pal, C.S.Palshetkar, K.Ramachandran, P.P.Singh

Neutron transfer in ⁹Be + ¹⁵⁹Tb system

NUCLEAR REACTIONS ¹⁵⁹Tb(⁹Be, X)¹⁶⁰Tb, E=30-47 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with calculations.

doi: 10.1140/epja/s10050-021-00627-0
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2021PA30 Phys.Rev. C 104, 024604 (2021)

D.Paul, A.Sen, T.K.Ghosh, Md.M.Shaikh, K.Atreya, R.Santra, S.Kundu, T.K.Rana, K.Banerjee, C.Bhattacharya, S.Bhattacharya, J.K.Meena, D.C.Biswas, B.N.Joshi, N.Kumar, G.K.Prajapati, Y.K.Gupta, K.Mahata, K.Ramachandran, S.Pal

Fission fragment mass and folding angle distributions in the reaction ⁹Be +²³⁸U

NUCLEAR REACTIONS ²³⁸U(⁹Be, F), E=37.5, 39, 42, 47 MeV pulsed beam from BARC-TIFR Pelletron facility in Mumbai; measured fission fragments, σ(E) using two position-sensitive multiwire proportional counters (MWPC) and time-of-flight (TOF) method; deduced folding angle distributions, yields, fission fragment mass distributions, σ(E)(exp)/σ(E)(theory), incomplete fusion fission (ICF) σ(E), half-mass distribution in the fission of the compound nucleus ²⁴⁷Cm at 47 MeV. Comparison with experimental results from ^6,7Li-induced reactions on actinide targets, and ²³⁸U(p, F), (α, F) and ²³²Th(¹²C, F) reactions. Comparison with semiempirical theoretical calculation using GEF code, and with macro-microscopic two-center shell model calculations, considering the admixture of incomplete fusion fission mechanism.

doi: 10.1103/PhysRevC.104.024604
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2021PA33 Phys.Lett. B 820, 136570 (2021)

S.K.Pandit, A.Shrivastava, K.Mahata, N.Keeley, V.V.Parkar, R.Palit, P.C.Rout, K.Ramachandran, A.Kumar, S.Bhattacharyya, V.Nanal, S.Biswas, S.Saha, J.Sethi, P.Singh, S.Kailas

Unraveling the reaction mechanism for large alpha production and incomplete fusion in reactions involving weakly bound stable nuclei

NUCLEAR REACTIONS ⁹³Nb(⁷Li, X)⁹⁴Mo/⁹⁵Mo/⁹⁶Mo, E=24 MeV; measured reaction products, Eγ, Iγ, Eα, Iα; deduced σ(θ, E). Comparison with DWBA calculations. BARC-TIFR Pelletron-Linac facility, the Indian National Gamma Array (INGA).

doi: 10.1016/j.physletb.2021.136570
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2021TA31 Phys.Rev.Lett. 127, 222501 (2021)

T.Tanaka, D.J.Hinde, M.Dasgupta, E.Williams, K.Vo-Phuoc, C.Simenel, E.C.Simpson, D.Y.Jeung, I.P.Carter, K.J.Cook, N.R.Lobanov, D.H.Luong, C.Palshetkar, D.C.Rafferty, K.Ramachandran

Mass Equilibration and Fluctuations in the Angular Momentum Dependent Dynamics of Heavy Element Synthesis Reactions

NUCLEAR REACTIONS ¹⁹⁸Pt(⁵²Cr, X)²⁵⁰No, E=219 MeV; ¹⁹⁶Pt(⁵⁴Cr, X)²⁵⁰No, E=222.9 MeV; measured reaction products; deduced correlated distributions of mass and angle is called a mass-angle distribution (MAD), scattering σ. TDHF calculations. The Heavy Ion Accelerator Facility of the Australian National University.

doi: 10.1103/PhysRevLett.127.222501
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2020CH28 Phys.Rev. C 102, 021601 (2020)

D.Chattopadhyay, S.Santra, A.Pal, A.Kundu, K.Ramachandran, R.Tripathi, T.N.Nag, S.Kailas

Direct and resonant breakup of radioactive ⁷Be nuclei produced in the ¹¹²Sn(⁶Li, ⁷Be) reaction

NUCLEAR REACTIONS ¹¹²Sn(⁶Li, ⁷Be)¹¹¹In, E=30 MeV; measured ΔE-E spectra of charged particles, α(³He)-coin, σ(θ) for direct and sequential breakup, relative energy distributions between α and ³He clusters from breakup of ⁷Be using a double sided silicon strip detector array covering large angular separation between breakup fragments at the 14-UD Pelletron-LINAC facility of BARC-TIFR; deduced breakup σ of ⁷Be into α and ³He via direct and 7/2- and 5/2- resonant states. ⁷Be; deduced energies of resonances, J, π, widths. Comparison of elastic scattering and transfer-breakup σ(θ) with coupled channels (CRC) calculations using FRESCO code.

doi: 10.1103/PhysRevC.102.021601
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2020GU05 Phys.Lett. B 803, 135297 (2020)

S.Gupta, K.Mahata, A.Shrivastava, K.Ramachandran, S.K.Pandit, P.C.Rout, V.V.Parkar, R.Tripathi, A.Kumar, B.K.Nayak, E.T.Mirgule, A.Saxena, S.Kailas, A.Jhingan, A.K.Nasirov, G.A.Yuldasheva, P.N.Nadtochy, C.Schmitt

Competing asymmetric fusion-fission and quasifission in neutron-deficient sub-lead nuclei

NUCLEAR REACTIONS ¹⁷⁵Lu(¹⁶O, X)¹⁹¹Au, E=82.8 MeV; ¹⁵⁴Sm(³⁷Cl, X)¹⁹¹Au, E=166.4 MeV; measured reaction products, fission fragments; deduced mass fission yields, newly identified island of mass asymmetric fission in the sub-lead region near ¹⁹¹Au compound nucleus.

doi: 10.1016/j.physletb.2020.135297
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2020KA19 Phys.Rev. C 101, 034611 (2020)

M.Kaushik, G.Gupta, S.Thakur, H.Krishnamoorthy, PushpendraP.Singh, V.V.Parkar, V.Nanal, A.Shrivastava, R.G.Pillay, K.Mahata, K.Ramachandran, S.Pal, C.S.Palshetkar, S.K.Pandit

Fusion of the Borromean nucleus ⁹Be with a ¹⁹⁷Au target at near-barrier energies

NUCLEAR REACTIONS ¹⁹⁷Au(⁹Be, 3n), (⁹Be, 4n), E=33-46.7 MeV; measured Eγ, Iγ, evaporation residue σ(E) by off-beam γ counting method at the Pelletron Linac facility of BARC-TIFR. Comparison with theoretical calculations using CCFULL code, and previous experimental data for excitation functions of other weakly bound projectiles of ^4,6,8He, ^6,7Li, ^9,11Be on ¹⁹⁷Au target.

doi: 10.1103/PhysRevC.101.034611
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2020MO33 Phys.Rev. C 102, 044610 (2020)

G.Mohanto, S.De, A.Parihari, P.C.Rout, K.Ramachandran, K.Mahata, E.T.Mirgule, R.Gandhi, Sangeeta, M.Kushwaha, B.Srinivasan, S.Santra, A.Shrivastava, S.P.Behera, B.J.Roy, A.Jhingan, B.K.Nayak, A.Saxena

Effect of nuclear structure and fissility on quasifission

NUCLEAR REACTIONS ^206,208Pb(³⁵Cl, X), (³⁷Cl, X), E(cm)/V_B=0.95-1.05; measured fission fragments and time-of-flight of fragments using two position sensitive multiwire proportional counters (MWPCs); deduced fission fragment velocities, mass ratio and center-of-mass angle, mass-angle distributions (MAD spectra), absence of mass-angle correlations and that of fast quasifission (QF); analyzed mass widths of the mass distributions as function of excitation energy for the reactions studied in this work, and compared with previous experimental results for ²⁰⁸Pb(³⁴S, X) and ²⁰⁸Pb(³⁰Si, X) reactions. ²⁰⁸Pb, ²³⁸U(¹²C, X), E not given; ¹⁸²W(¹³C, X), E not given; ¹⁷⁵Lu, ¹⁸⁶W, ^186,192Os, ¹⁹⁶Pt, ²⁰⁰Hg, ²⁰⁸Pb, ²³⁸U(¹⁶O, X), E not given; ²³²Th(¹⁸O, X), E not given; ¹⁷⁸Hf, ²³⁸U(²⁴Mg, X), E not given; ¹⁷⁰Yb, ²³⁸U(²⁸Si, X), E not given; ²⁰⁸Pb, ²³²Th(³⁰Si, X), E not given; ¹⁷⁸Hf, ¹⁹⁴Pt, ²⁰²Hg, ²⁰⁸Pb(³⁴S, X), E not given; ¹⁶⁸Er, ¹⁸⁶W, ²⁰⁸Pb, ²³²Th(³⁴S, X), E not given; ¹⁵⁴Sm, ^206,208Pb(³⁵Cl, X), (³⁷Cl, X), E not given; ¹⁴⁴Sm(³⁵Cl, X), E not given; ¹⁴²Nd, ¹⁵⁴Sm, ¹⁹⁸Pt, ²⁰⁸Pb, ²³²Th, ²³⁸U(⁴⁰Ca, X), E not given; ¹⁴⁴Sm, ¹⁶²Dy, ¹⁷⁰Er, ¹⁷⁴Yb, ¹⁷⁸Hf, ¹⁸⁶W, ¹⁹²Os, ¹⁹⁶Pt, ²⁰⁰Hg, ²⁰⁸Pb, ²³⁸U(⁴⁸Ti, X), E not given; ^144,154Sm(⁴⁸Ca, X), E not given; ¹⁵⁴Sm, ¹⁷⁰Er, ¹⁸⁴W, ¹⁹²Os, ¹⁹⁸Pt, ²⁰⁸Pb(⁶⁴Ni, X), E not given; analyzed measured cross sections and mass-angle distributions (MADs) by including deformation parameter β₂; deduced effect on quasifission (QF) process.

doi: 10.1103/PhysRevC.102.044610
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2020NA24 Phys.Rev. C 102, 024610 (2020), Erratum Phys.Rev. C 104, 039901 (2021)

T.N.Nag, R.Tripathi, S.Sodaye, K.Sudarshan, S.Santra, K.Ramachandran, A.Kundu, D.Chattopadhyay, A.Pal, P.K.Pujari

Kinetic energy spectra and angular distributions of projectile-like fragments in ^{12, 13}C + ⁹³Nb reactions

NUCLEAR REACTIONS ⁹³Nb(¹²C, X)⁷Li/⁹Be/¹⁰Be/¹⁰B/¹¹B/¹³C/¹³N/¹⁵N/⁹³Nb, E=65 MeV; ⁹³Nb(¹³C, X)⁶Li/⁷Li/⁹Be/¹⁰Be/¹¹B/¹²B/¹²C/¹⁴C/¹⁴N/¹⁵N/⁹¹Nb/⁹²Nb, E=65 MeV; measured kinetic-energy spectra of projectile-like fragments (PLFs) and target-like fragments (TLFs), the latter formed in transfer reactions or inelastic excitation, σ(θ) of PLF and TLF fragments using ΔE-E telescopes of ten silicon detectors at BARC-TIFR Pelletron-LINAC facility; deduced structure information and spectroscopic factors using FRESCO code for coupled reaction channels calculations.

doi: 10.1103/PhysRevC.102.024610
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2020PA33 Phys.Rev. C 102, 034618 (2020)

P.N.Patil, N.M.Badiger, B.K.Nayak, S.Santra, P.C.Rout, A.Pal, G.Mohanto, K.Mahata, K.Ramachandran, R.G.Thomas, E.T.Mirgule, N.Madhavan, R.Gandhi, M.M.Hosamani, A.Vinayak, A.Kundu, S.De, S.P.Behera, B.Srinivasan, A.Saxena, V.D.Bharud

Pre-scission neutron multiplicity in the ³²S + ¹⁸⁴W reaction

NUCLEAR REACTIONS ¹⁸⁴W(³²S, F)²¹⁶Th^*, E=180 MeV or E^*=71.3 MeV; measured complimentary fission fragments, E(n), I(n), (fragment)(fragment)n-correlations, (fragment)n(θ) using single-sided silicon strip detectors for fission fragments, and an array of 14 liquid scintillators for neutrons at the BARC-TIFR 14UD Pelletron-Linac accelerator facility; deduced double differential neutron multiplicity spectra, pre-scission and post-scission neutron multiplicities, neck coordinate versus elongation for fusion and nonfusion trajectories. Comparison with statistical model calculations using JOANNE2 code, and with dynamical model calculations using HICOL code.

doi: 10.1103/PhysRevC.102.034618
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2020PA45 Phys.Rev. C 102, 054604 (2020)

D.Paul, A.Sen, T.K.Ghosh, Md.M.Shaikh, K.Atreya, S.Kundu, K.Banerjee, C.Bhattacharya, S.Bhattacharya, J.K.Meena, D.C.Biswas, B.N.Joshi, N.Kumar, G.K.Prajapati, Y.K.Gupta, K.Mahata, K.Ramachandran, S.Pal

Measurement of fragment-mass distributions from fission of ²¹⁴At following the ⁹Be + ²⁰⁵Tl reaction

NUCLEAR REACTIONS ²⁰⁵Tl(⁹Be, X)²¹⁴At^*, E=42, 43.5, 45, 47 MeV; measured reaction products, yields, time-of-flight difference of the fission fragments, Angular correlations using two position-sensitive multiwire proportional counters (MWPC) at the BARC-TIFR Pelletron facility; deduced fission-fragments mass distributions, half-mass yield distribution, slight asymmetric mass distribution. Comparison with theoretical predictions from a recent macroscopic-microscopic calculation.

doi: 10.1103/PhysRevC.102.054604
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2019PA42 Phys.Rev. C 100, 014618 (2019)

S.K.Pandit, A.Shrivastava, K.Mahata, V.V.Parkar, N.Keeley, P.C.Rout, K.Ramachandran, C.S.Palshetkar, I.Martel, A.Kumar, A.Chatterjee, S.Kailas

Role of target shell structure in direct reactions involving weakly bound ⁷Li

NUCLEAR REACTIONS ⁸⁹Y(⁷Li, ⁷Li), (⁷Li, ⁶Li), (⁷Li, 2α), (⁷Li, dα), (⁷Li, tα), (⁷Li, ⁶He), E=23, 28, 30 MeV; measured charged particles, particle identification spectrum for protons, deuterons, tritons, α, ⁶He, and ^6,7Li, angular distributions of charged particles, αα-, αd-, and αt-coin, σ(E), differential σ(θ, E), σ(E) for prompt and resonant breakup of ⁷Li using silicon ΔE-E telescope for charged particle detection at BARC-TIFR Pelletron-Linac facility; deduced that observed cross sections at low target excitations for nucleon transfer reactions correlate with the vacancies in the valence orbitals. Comparison with continuum discretized coupled channel (CDCC), and coupled-channel Born approximation (CCBA) calculations, and with results from previous similar experiments using ⁹³Nb target.

doi: 10.1103/PhysRevC.100.014618
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2019PA58 J.Instrum. 14, T01005 (2019)

S.K.Pandit, K.Mahata, A.Shrivastava, V.V.Parkar, K.Ramachandran

Interpretation of coincidence data from strip detectors and extraction of absolute cross section using 3-body Monte Carlo simulation method

NUCLEAR REACTIONS ²⁰⁹Bi(⁷Li, ⁷Li), E=27.9 MeV; measured reaction products; deduced probabilities. Comparison with Monte Carlo simulations.

doi: 10.1088/1748-0221/14/01/T01005
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2018AC05 Phys.Rev. C 97, 034607 (2018)

Ja.Acharya, S.Mukherjee, A.Chatterjee, N.L.Singh, K.Ramachandran, P.C.Rout, K.Mahata, V.Desai, E.T.Mirgule, S.V.Suryanarayana, B.K.Nayak, A.Saxena, G.F.Steyn

Neutron emission in ¹⁹F-induced reactions

NUCLEAR REACTIONS ⁵¹V, ⁸⁹Y, ¹⁸¹Ta(¹⁹F, X), E=130, 140, 145, 150 MeV; measured neutron energy spectra by time-of-flight method, neutron emission differential σ(θ, E) at BARC-TIFR Pelletron-LINAC facility. Comparison with theoretical cross sections from the nuclear reaction code ALICE2014 with two density models. Comparison of experimental n(θ) with theoretical calculations using statistical model code Projection Angular-Momentum Coupled Evaporation (PACE4) and ALICE2014.

doi: 10.1103/PhysRevC.97.034607
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6339.

2018CH23 Phys.Rev. C 97, 051601 (2018)

D.Chattopadhyay, S.Santra, A.Pal, A.Kundu, K.Ramachandran, R.Tripathi, B.J.Roy, T.N.Nag, Y.Sawant, B.K.Nayak, A.Saxena, S.Kailas

Role of cluster structure in the breakup of ⁷Li

NUCLEAR REACTIONS ¹¹²Sn(⁷Li, ⁷Li), (⁷Li, ⁷Li'), (⁷Li, ⁶Li), (⁷Li, ⁵Li), E=30 MeV; measured α, ⁶He, triton, deuteron and proton spectra, and αt-, αd-, αp-, αα-coin from the breakup of ⁷Li into α+t and ⁶He+p, ⁶Li into α+d, and ⁵Li into α+p, yield distributions, σ, differential σ(θ) at the 14-UD Pelletron-Linac TIFR-BARC facility. ⁷Li; deduced resonances, J, π, widths, α+t breakup through 5/2- resonance, and additional cluster of ⁷Li as ⁶He+p. Comparison with coupled reaction channel (CRC), and continuum discretized coupled-channel (CDCC) calculations using FRESCO code. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.97.051601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6340. Data from this article have been entered in the XUNDL database. For more information, click here.

2018CH37 Phys.Rev. C 98, 014609 (2018)

D.Chattopadhyay, S.Santra, A.Pal, A.Kundu, K.Ramachandran, R.Tripathi, B.J.Roy, Y.Sawant, B.K.Nayak, A.Saxena, S.Kailas

Resonant breakup of ⁸Be in ¹¹²Sn (⁷Li, ⁸Be → 2α) reaction

NUCLEAR REACTIONS ¹¹²Sn(⁷Li, ⁷Li), (⁷Li, ⁸Be), E=30 MeV; measured reaction products p, d, t, α, ⁶He and ^6,7Li, Eα, Iα, αα-coin, differential σ(θ) from α+α breakup of ⁸Be in proton pickup channel, elastic scattering and transfer channels using double sided silicon strip detector array at the 14-UD Pelletron-Linac TIFR-BARC facility; deduced large angular separation of the α fragments. ⁸Be; deduced resonances, J, π, widths, σ for α+α sequential breakup of ⁷Li to ⁸Be and then to α+α through the 0+, 2+, and 4+ resonances in ⁸Be. ¹¹³Sb, ¹¹³Sn; deduced differential σ(θ) for g.s. and excited states through proton and neutron stripping channels. Comparison with CDDC plus CRC calculations using FRESCO code.

doi: 10.1103/PhysRevC.98.014609
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6344. Data from this article have been entered in the XUNDL database. For more information, click here.

2018MA74 Nucl.Instrum.Methods Phys.Res. A894, 20 (2018)

K.Mahata, A.Shrivastava, J.A.Gore, S.K.Pandit, V.V.Parkar, K.Ramachandran, A.Kumar, S.Gupta, P.Patale

Particle identification using digital pulse shape discrimination in a nTD silicon detector with a 1 GHz sampling digitizer

NUCLEAR REACTIONS ²⁷Al, ⁹³Nb(⁷Li, X), (¹²C, X), E ∼ 5 MeV/nucleon; measured reaction products; deduced isotopic separation with pulse shape discrimination.

doi: 10.1016/j.nima.2018.03.052
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2018PA06 Phys.Rev. C 97, 014607 (2018)

V.V.Parkar, SushilK.Sharma, R.Palit, S.Upadhyaya, A.Shrivastava, S.K.Pandit, K.Mahata, V.Jha, S.Santra, K.Ramachandran, T.N.Nag, P.K.Rath, B.Kanagalekar, T.Trivedi

Investigation of complete and incomplete fusion in the ⁷Li + ¹²⁴Sn reaction near Coulomb barrier energies

NUCLEAR REACTIONS ¹²⁴Sn(⁷Li, ⁸Li), (⁷Li, ⁶Li), (⁷Li, 3n), (⁷Li, 4n), (⁷Li, 5n), (t, n), (t, 2n), (t, 3n), ^123mSn/¹²⁵Sn/^125mSn/¹²⁴Sb/¹²⁵Sb/¹²⁵Sb/^126mSb/¹²⁶I/¹²⁸I, E(⁷Li)=17-39 MeV, [triton from ⁷Li breakup]; measured on-line and off-line Eγ, Iγ, σ(E) for 2n+3n+4n, complete fusion σ(E), total fusion σ(E), incomplete fusion σ(E) for 1n-stripping and 1n-pickup channels at the 14UD BARC-TIFR Pelletron-Linac accelerator facility, Mumbai. Comparison with theoretical calculations of σ(E) using CCFULL code, and continuum discretized coupled channel (CDCC) formalism. ^125m,128I; measured decay curves and half-lives.

doi: 10.1103/PhysRevC.97.014607
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6337.

2018PA24 Phys.Rev. C 98, 014601 (2018)

V.V.Parkar, S.K.Pandit, A.Shrivastava, R.Palit, K.Mahata, V.Jha, K.Ramachandran, S.Gupta, S.Santra, S.K.Sharma, S.Upadhyaya, T.N.Nag, S.Bhattacharya, T.Trivedi, S.Kailas

Fusion reaction studies for the ⁶Li + ¹²⁴Sn system at near-barrier energies

NUCLEAR REACTIONS ¹²⁴Sn(⁶Li, X)¹²⁶I/¹²⁷I/¹²³Sn/¹²⁵Sn/¹²⁵Sb/¹²⁴Sb/¹²⁷Te/¹²⁶Te, E=17.5-35.7 MeV; ¹⁵⁹Tb(⁶Li, X)¹⁶⁰Ho/¹⁶²Ho, E=23.7-33.8 MeV; measured Eγ, Iγ, σ(E) for evaporation residues, complete, incomplete and total fusion (CF, ICF, TF), transfer and capture reactions by online and offline activation methods at the BARC-TIFR Pelletron-Linac facility. Comparison with previous experimental incomplete fusion σ for ²⁰⁹Bi, ¹⁹⁷Au, ¹⁵⁹Tb, ¹²⁴Sn(⁷Li, X), (⁶Li, X) reactions, and with statistical model and coupled channel calculations using PACE and CCFULL codes.

doi: 10.1103/PhysRevC.98.014601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6342.

2018PA48 Phys.Rev. C 98, 044603 (2018)

C.S.Palshetkar, D.J.Hinde, M.Dasgupta, E.Williams, K.Ramachandran, I.P.Carter, K.J.Cook, D.Y.Jeung, D.H.Luong, S.D.McNeil, D.C.Rafferty, A.Wakhle

Fission cross sections as a probe of fusion dynamics at high angular momentum

NUCLEAR REACTIONS ¹⁴⁸Sm(¹⁶O, X)¹⁶⁴Yb^*, E(cm)=73.92, 82.04, 90.21, 99.24 MeV; ¹³⁶Ba(²⁸Si, X)¹⁶⁴Yb^*, E(cm)=108.22, 116.38, 119.07, 125.42 MeV; ¹²⁴Sn(⁴⁰Ca, X)¹⁶⁴Yb^*, E(cm)=126.00, 130.11, 139.19, 144.07 MeV; measured angular distributions and mass-angle distributions (MADs) of fission fragments using CUBE spectrometer at the 14UD tandem accelerator at the Australian National University; deduced fission σ(E) of excited compound nuclei with coupled channel analysis for angular momentum distributions. Comparison with previous experimental fusion and fission σ(E), and with statistical model calculations. Discussed fission cross-section as a sensitive probe of fusion dynamics at high angular momentum.

doi: 10.1103/PhysRevC.98.044603
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0921.

2018RO04 Phys.Rev. C 97, 034603 (2018)

B.J.Roy, Y.Sawant, P.Patwari, S.Santra, A.Pal, A.Kundu, D.Chattopadhyay, V.Jha, S.K.Pandit, V.V.Parkar, K.Ramachandran, K.Mahata, B.K.Nayak, A.Saxena, S.Kailas, T.N.Nag, R.N.Sahoo, P.P.Singh, K.Sekizawa

Deep-inelastic multinucleon transfer processes in the ¹⁶O + ²⁷Al reaction

NUCLEAR REACTIONS ²⁷Al(¹⁶O, ¹⁶O), (¹⁶O, ⁶Li), (¹⁶O, ⁷Li), (¹⁶O, ⁷Be), (¹⁶O, ⁹Be), (¹⁶O, ¹⁰B), (¹⁶O, ¹¹B), (¹⁶O, ¹²C), (¹⁶O, ¹³C), (¹⁶O, ¹⁴N), (¹⁶O, ¹⁵N), E=134 MeV; measured reaction products, σ(θ) for elastic-scattering and for various transfer channels, total kinetic energy loss spectra at the TIFR Pelletron-LINAC accelerator facility, Mumbai; deduced Q value, and angle-integrated production cross sections for various proton-transfer channels. Comparison with calculated production cross sections using time-dependent Hartree-Fock (TDHF) theory and recently developed method TDHF+GEMINI, and secondary deexcitation processes using a statistical model GEMINI++. Discussed possible interplay between fusion-fission, deep-inelastic, multinucleon transfer, and particle evaporation processes.

doi: 10.1103/PhysRevC.97.034603
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6338.

2018TR02 Int.J.Mod.Phys. E27, 1850010 (2018)

R.Tripathi, S.Sodaye, K.Ramachandran, S.K.Sharma, P.K.Pujari

Incomplete mass transfer processes in ²⁸Si+⁹³Nb reaction

doi: 10.1142/S0218301318500106
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6330.

2018WI01 Phys.Rev.Lett. 120, 022501 (2018)

E.Williams, K.Sekizawa, D.J.Hinde, C.Simenel, M.Dasgupta, I.P.Carter, K.J.Cook, D.Y.Jeung, S.D.McNeil, C.S.Palshetkar, D.C.Rafferty, K.Ramachandran, A.Wakhle

Exploring Zeptosecond Quantum Equilibration Dynamics: From Deep-Inelastic to Fusion-Fission Outcomes in ⁵⁸Ni + ⁶⁰Ni Reactions

NUCLEAR REACTIONS ^58,60Ni(⁵⁸Ni, X), E=158.4 MeV; measured reaction products; deduced σ, σ(θ, E). Comparison with theoretical predictions using time dependent Hartree-Fock and time dependent random phase approximation approaches, which, respectively, incorporate one-body energy dissipation and fluctuations.

doi: 10.1103/PhysRevLett.120.022501
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2017NA30 Phys.Rev. C 96, 044608 (2017)

T.N.Nag, R.Tripathi, S.Sodaye, K.Sudarshan, K.Ramachandran, B.K.Nayak, P.K.Pujari

Mass distribution and mass-resolved angular distribution in the ¹⁶O + ²³⁸U reaction at sub-barrier energy

NUCLEAR REACTIONS ²³⁸U(¹⁶O, X)^85mKr/⁸⁸Kr/⁹¹Sr/⁹⁵Sr/⁹²Y/⁹⁵Zr/⁹⁷Zr/⁹⁹Mo/¹⁰³Ru/¹⁰⁵Ru/¹⁰⁵Rh/^111mPd/¹¹²Pd/¹¹³Ag/¹¹⁵Cd/^115mIn/^117mCd/¹²²Sb/¹²⁴Sb/¹²⁶Sb/¹²⁷Sb/¹²⁸Sb/¹³⁰I/¹³¹I/¹³³I/¹³⁴I/¹⁴⁰Ba/¹⁴⁰La/¹⁴²La/¹⁴³Ce/²³⁷U/²³⁸Np/²³⁹Np, E=85.3 MeV; measured Eγ, Iγ, mass and mass-resolved angular distributions by recoil catcher technique, yields of fission and transfer products in offline γ-ray spectrometry at the BARC-TIFR Pelletron-LINAC facility in Mumbai. Comparison with statistical saddle point model (SSPM) calculations.

doi: 10.1103/PhysRevC.96.044608
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6322.

2017PA24 Phys.Rev. C 96, 024603 (2017)

A.Pal, S.Santra, D.Chattopadhyay, A.Kundu, K.Ramachandran, R.Tripathi, B.J.Roy, T.N.Nag, Y.Sawant, D.Sarkar, B.K.Nayak, A.Saxena, S.Kailas

Projectile-breakup-induced fission-fragment angular distributions in the ⁶Li + ²³²Th reaction

NUCLEAR REACTIONS ²³²Th(⁶Li, F), (⁶Li, αF), (⁶Li, dF), (⁶Li, pF), E=28, 32, 36 MeV; measured fission fragments, (fission fragment)α-, (fission fragment)d- and (fission fragment)p-coin, angular distributions for inclusive fission fragments and fission fragments in coincidence with α, deuterons and protons, yield distributions for α, deuterons and protons at BARC-TIFR Pelletron accelerator facility; deduced fission fragment anisotropy for inclusive and transfer-fission. Comparison with statistical saddle-point model (SSPM), and entrance-channel dependent (ECD) model calculations. Discussed effect of ⁶Li projectile breakup.

doi: 10.1103/PhysRevC.96.024603
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6311.

2017PA39 Phys.Rev. C 96, 044616 (2017)

S.K.Pandit, A.Shrivastava, K.Mahata, V.V.Parkar, R.Palit, N.Keeley, P.C.Rout, A.Kumar, K.Ramachandran, S.Bhattacharyya, V.Nanal, C.S.Palshetkar, T.N.Nag, S.Gupta, S.Biswas, S.Saha, J.Sethi, P.Singh, A.Chatterjee, S.Kailas

Investigation of large alpha production in reactions involving weakly bound ⁷Li

NUCLEAR REACTIONS ⁹³Nb(⁷Li, X)⁹²Zr/⁹³Nb/⁹⁴Nb/⁹⁵Nb/^93mMo/⁹⁴Mo/⁹⁵Mo/^95mMo/⁹⁵Tc/^95mTc/⁹⁶Tc/^96mTc/⁹⁷Tc/⁹⁶Ru/⁹⁷Ru/⁹⁸Ru, E=24, 26, 28, 30 MeV; measured Eγ, Iγ, γγ-coin, σ(E) for (t, n), (t, 2n), (t, 3n), (α, n), (α, 2n), (⁷Li, 2n), (⁷Li, 3n), (⁷Li, 4n), and (⁷Li, p2n) channels using INGA array at Pelletron-Linac facility in Mumbai; analyzed literature and present data for t-capture and inclusive α-production cross sections for ⁷Li projectiles incident on ²⁸Si, ^58,64Ni, ⁶⁵Cu, ⁹³Nb, ^118,124Sn, ¹⁵⁹Tb, ¹⁶⁵Ho, ¹⁹⁷Au, ¹⁹⁸Pt, ²⁰⁸Pb, and ²⁰⁹Bi targets. Comparison with statistical model calculations using PACE code, and angular momentum distribution from the coupled channel code CCFULL.

doi: 10.1103/PhysRevC.96.044616
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6313.

2017PR07 Phys.Rev. C 96, 034608 (2017)

E.Prasad, D.J.Hinde, E.Williams, M.Dasgupta, I.P.Carter, K.J.Cook, D.Y.Jeung, D.H.Luong, C.S.Palshetkar, D.C.Rafferty, K.Ramachandran, C.Simenel, A.Wakhle

Fusion and quasifission studies for the ⁴⁰Ca + ¹⁸⁶W, ¹⁹²Os reactions

NUCLEAR REACTIONS ¹⁸⁶W(⁴⁰Ca, X)²²⁶Pu*, E=199.3, 204.3, 214.3, 225.4 MeV; ¹⁹²Os(⁴⁰Ca, X)²³²Cm*, E=199.3, 204.3, 214.3, 225.3, 239.8, 262.6 MeV; measured mass-angle distributions (MADs) of the fragments, differential σ(θ, E), total fusion σ(E) using the CUBE spectrometer at the Heavy Ion Accelerator Facility of the Australian National University; deduced fragment mass ratio σ(M_R), potential parameters from Coupled-channels calculations, Coulomb barriers as a function of orientation angles, parameters of the sticking-time distribution and average sticking time for quasifission components. Comparison with theoretical calculations using classical phenomenological approach by GEneral description of Fission observables (GEF) model. Relevance to quasifission and fusion-fission processes in the production of superheavy elements (SHE).

doi: 10.1103/PhysRevC.96.034608
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0932.

2017SH34 Phys.Rev. C 96, 034620 (2017)

A.Shrivastava, K.Mahata, V.Nanal, S.K.Pandit, V.V.Parkar, P.C.Rout, N.Dokania, K.Ramachandran, A.Kumar, A.Chatterjee, S.Kailas

Fusion hindrance at deep sub-barrier energies for the ¹¹B + ¹⁹⁷Au system

NUCLEAR REACTIONS ¹⁹⁷Au(¹¹B, X)²⁰²Po/²⁰³Po/²⁰⁴Po/²⁰⁵Po, E=40-65 MeV; measured reaction products, Eγ, Iγ, x rays, evaporation residue and fusion σ(E) at Pelletron-LINAC Facility Mumbai; deduced S-factor. Comparison with Coupled-channels (CC) calculations using code CCFULL, adiabatic model calculations, and statistical model calculations. Systematics of other systems such as ^6,7Li, ¹²C+¹⁹⁸Pt, and ¹⁶O+²⁰⁸Pb.

doi: 10.1103/PhysRevC.96.034620
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6312.

2017SO03 Phys.Rev. C 95, 014612 (2017)

S.Sodaye, R.Tripathi, B.V.John, K.Ramachandran, P.K.Pujari

Mass distribution and mass resolved angular distribution of fission products in ²⁸Si + ²³²Th

NUCLEAR REACTIONS ²³²Th(²⁸Si, F), E=158, 166, 180 MeV; measured Eγ, Iγ, fission fragment mass distribution, mass resolved angular distributions using recoil catcher method, formation cross sections of fission products using off-line gamma-ray spectrometry at BARC-TIFR Pelletron-LINAC facility; deduced symmetric mass distribution for complete fusion fission, asymmetric mass distribution for transfer induced fission, higher angular anisotropy for symmetric fission products, and contribution from pre-equilibrium fission.

doi: 10.1103/PhysRevC.95.014612
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6316.

2016CH50 Phys.Rev. C 94, 061602 (2016)

D.Chattopadhyay, S.Santra, A.Pal, A.Kundu, K.Ramachandran, R.Tripathi, D.Sarkar, S.Sodaye, B.K.Nayak, A.Saxena, S.Kailas

Resonant, direct, and transfer breakup of ⁶Li by ¹¹²Sn

NUCLEAR REACTIONS ¹¹²Sn(⁶Li, ⁶Li), (⁶Li, ⁵Li), (⁶Li, ⁸Be), E=22, 30 MeV; measured α, deuteron and proton spectra in coincidence mode from the breakup of ⁶Li into α+d, ⁷Li into α+p, and ⁸Be into α+α, yield distributions, angular distributions at 14-UD Pelletron-Linac TIFR-BARC facility. ⁶Li; deduced resonances, J, π, α+d breakup through 1+ resonance. ¹¹⁰In, ¹¹³Sn; observed excited states. Comparison with coupled reaction channels (CRC) and continuum discretized coupled channels (CDCC) calculations using FRESCO code.

doi: 10.1103/PhysRevC.94.061602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6272.

2016PA24 Phys.Rev. C 93, 061602 (2016)

S.K.Pandit, A.Shrivastava, K.Mahata, N.Keeley, V.V.Parkar, P.C.Rout, K.Ramachandran, I.Martel, C.S.Palshetkar, A.Kumar, A.Chatterjee, S.Kailas

Probing transfer to unbound states of the ejectile with weakly bound ⁷Li on ⁹³Nb

NUCLEAR REACTIONS ⁹³Nb(⁷Li, ⁷Li), (⁷Li, ⁷Li'), (⁷Li, ⁶Li), (⁷Li, ⁸Be)E=24, 28, 30 MeV; measured energy correlation spectra of breakup fragments, elastic σ(E), α+t σ(E) from unbound ⁷Li breakup, α+d σ(E) from unbound ⁶Li breakup, and α+α σ(E) from ⁸Be breakup, one-neutron stripping and one-proton pickup cross sections at Mumbai Pelletron-Linac accelerator facility. Comparison with Coupled-channels Born approximation (CCBA) and continuum-discretized coupled-channels (CDCC) calculations.

doi: 10.1103/PhysRevC.93.061602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6269.

2016RA26 Phys.Rev. C 94, 024607 (2016)

D.C.Rafferty, M.Dasgupta, D.J.Hinde, C.Simenel, E.C.Simpson, E.Williams, I.P.Carter, K.J.Cook, D.H.Luong, S.D.McNeil, K.Ramachandran, K.Vo-Phuoc, A.Wakhle

Multinucleon transfer in ^{16, 18}O, ¹⁹F + ²⁰⁸Pb reactions at energies near the fusion barrier

NUCLEAR REACTIONS ²⁰⁸Pb(¹⁶O, X)¹²C/¹³C/¹⁴C/¹³N/¹⁴N/¹⁵N/¹⁴O/¹⁵O/¹⁷O/¹⁸O/¹⁷F, E(cm)=73.0, 72.5, 70.9, 69.3; ²⁰⁸Pb(¹⁸O, X)¹¹B/¹²C/¹³C/¹⁴C/¹⁵C/¹⁶C/¹⁵N/¹⁶N/¹⁷N/¹⁶O/¹⁷O/¹⁹O/¹⁹F, E(cm)=73.6, 71.6, 71.1, 70.3, 69.6, 68.0 MeV; ²⁰⁸Pb(¹⁹F, X)¹²C/¹³C/¹⁴C/¹⁵N/¹⁶N/¹⁷N/¹⁶O/¹⁷O/¹⁸O/¹⁸F/²⁰F/²¹F/²⁰Ne/²¹Ne/²²Ne, E(cm)=83.3, 81.3, 80.6, 78.9, 77.2, 75.5, 74.1 MeV; measured projectile-like fragments (PLFs) produced in +1p, +2n, +1n, -1n, -2n, -1p, -1p1n, -1p2n, -2p, -2p1n, -2p2n, -2p3n, -2p4n, -3p4n, +1p2n, +1p1n, +2n, -3p2n and -3p3n transfer channels, ΔE-E spectra, probabilities for various transfer processes, ratios of quasielastic and Rutherford scattering cross sections, distribution of excitation energies at ANU Heavy Ion accelerator facility.

doi: 10.1103/PhysRevC.94.024607
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2016SH09 Phys.Lett. B 755, 332 (2016)

A.Shrivastava, K.Mahata, S.K.Pandit, V.Nanal, T.Ichikawa, K.Hagino, A.Navin, C.S.Palshetkar, V.V.Parkar, K.Ramachandran, P.C.Rout, A.Kumar, A.Chatterjee, S.Kailas

Evolution of fusion hindrance for asymmetric systems at deep sub-barrier energies

NUCLEAR REACTIONS ¹⁹⁸Pt(⁷Li, X), E=20-35 MeV;¹⁹⁸Pt(¹²C, X), E=50-64 MeV; measured reaction products, Eγ, Iγ, X-rays; deduced fusion σ. Comparison with coupled-channels calculations using the code CCFULL.

doi: 10.1016/j.physletb.2016.02.029
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2016SH19 Nucl.Phys. A953, 80 (2016)

Md.M.Shaikh, M.Das, S.Roy, M.Sinha, M.K.Pradhan, P.Basu, U.Datta, K.Ramachandran, A.Shrivastava

Threshold behavior of interaction potential for the system ⁷Li + ⁶⁴Ni: Comparison with ⁶Li + ⁶⁴Ni

NUCLEAR REACTIONS ⁶⁴Ni(⁷Li, x), (⁷Li, ⁷Li), E=12, 14.3, 15, 16, 19.3, 26.4 MeV; measured reaction product particles using telescopes with Si surface barrier detectors; deduced σ, σ(E_Li), σ(θ); calculated σ, σ(E_Li), σ(θ) using optical model; deduced energy dependence of OM imaginary potential. Compared with data from ⁶Li-induced reaction.

doi: 10.1016/j.nuclphysa.2016.04.035
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2015PA25 Nucl.Phys. A940, 167 (2015)

A.Parmar, Sonika, B.J.Roy, V.Jha, U.K.Pal, T.Sinha, S.K.Pandit, V.V.Parkar, K.Ramachandran, K.Mahata, S.Santra, A.K.Mohanty

Understanding the two neutron transfer reaction mechanism in ²⁰⁶Pb(¹⁸O, ¹⁶O)²⁰⁸Pb

NUCLEAR REACTIONS ²⁰⁶Pb(¹⁸O, ¹⁸O), (¹⁸O, ¹⁶O), E=79 MeV; measured E(^16,18O), I(^16,18O, θ) using SSB's (silicon surface barrier) telescopes; deduced σ(θ), one- and two-nucleon transfer probability; calculated σ(θ) using FRES 2.9 CC code.

doi: 10.1016/j.nuclphysa.2015.04.004
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2015PR07 Phys.Rev. C 91, 064605 (2015)

E.Prasad, D.J.Hinde, K.Ramachandran, E.Williams, M.Dasgupta, I.P.Carter, K.J.Cook, D.Y.Jeung, D.H.Luong, S.McNeil, C.S.Palshetkar, D.C.Rafferty, C.Simenel, A.Wakhle, J.Khuyagbaatar, Ch.E.Dullmann, B.Lommel, B.Kindler

Observation of mass-asymmetric fission of mercury nuclei in heavy ion fusion

NUCLEAR REACTIONS ¹⁴²Nd(⁴⁰Ca, X)¹⁸²Hg*, E=167.7, 194.9, 199.9, 210.0, 221.1 MeV; ¹⁸²W(¹³C, X)¹⁹⁵Hg*, E=60.0, 63.0, 66.0 MeV; measured fission fragments mass rations and mass-angle distributions using the CUBE spectrometer at 14UD Pelletron facility of ANU-Canberra; deduced mass-asymmetric fission of ¹⁸²Hg compound nucleus at E*=33.6 MeV, and mass-symmetric fission of ¹⁹⁵Hg compound nucleus at all energies.Kinematic reconstruction method. Comparison with results from mass-asymmetric fission of ¹⁸⁰Hg in beta-delayed fission process, and with theoretical predictions.

doi: 10.1103/PhysRevC.91.064605
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2015RA15 Pramana 85, 335 (2015)

K.Ramachandran, A.Chatterjee, A.Navin, K.Mahata, A.Shrivastava, V.Tripathi, S.Kailas, V.Nanal, R.G.Pillay, A.Saxena, R.G.Thomas, D.R.Chakrabarty, V.M.Datar, S.Kumar, P.K.Sahu

Fission time-scale from the measurement of pre-scission light particles and γ-ray multiplicities

NUCLEAR REACTIONS ¹⁷⁵Lu(²⁸Si, X), E=159 MeV; measured fission products, En, In, Ep, Ip, Eα, Iα; deduced GDR γ-ray multiplicity spectra, pre-saddle, saddle-to-scission, total fission time scale.

doi: 10.1007/s12043-015-1048-y
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2015SO17 Phys.Rev. C 92, 024603 (2015)

Sonika, B.J.Roy, A.Parmar, U.K.Pal, H.Kumawat, V.Jha, S.K.Pandit, V.V.Parkar, K.Ramachandran, K.Mahata, A.Pal, S.Santra, A.K.Mohanty, K.Sekizawa

Multinucleon transfer study in ²⁰⁶Pb(¹⁸O, x) at energies above the Coulomb barrier

NUCLEAR REACTIONS ²⁰⁶Pb(¹⁸O, ²⁰O), (¹⁸O, ¹⁹O), (¹⁸O, ¹⁷O), (¹⁸O, ¹⁶O), (¹⁸O, ¹⁸N), (¹⁸O, ¹⁷N), (¹⁸O, ¹⁶N), (¹⁸O, ¹⁵N), (¹⁸O, ¹⁴N), (¹⁸O, ¹⁶C), (¹⁸O, ¹⁵C), (¹⁸O, ¹⁴C), (¹⁸O, ¹³C), (¹⁸O, ¹²C), (¹⁸O, ¹²B), (¹⁸O, ¹¹B), (¹⁸O, ¹⁰B), (¹⁸O, ¹⁰Be), (¹⁸O, ⁹Be), (¹⁸O, ¹⁸O)E=139 MeV; measured particle spectra, elastic σ(θ), total kinetic energy loss (TKEL) spectra, angular distributions at Pelletron-LINAC accelerator of BARC-TIFR facility; deduced Q values and angle integrated cross sections. Comparison with fully microscopic time-dependent Hartree-Fock (TDHF) calculations, based on the independent single-nucleon transfer mode. Discussed effect of particle evaporation on the production cross sections, and possible origin of discrepancies.

doi: 10.1103/PhysRevC.92.024603
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2014PA07 Phys.Rev. C 89, 024607 (2014); Erratum Phys.Rev. C 100, 039902 (2019)

C.S.Palshetkar, S.Thakur, V.Nanal, A.Shrivastava, N.Dokania, V.Singh, V.V.Parkar, P.C.Rout, R.Palit, R.G.Pillay, S.Bhattacharyya, A.Chatterjee, S.Santra, K.Ramachandran, N.L.Singh

Fusion and quasi-elastic scattering in the ^{6, 7}Li+¹⁹⁷Au systems

NUCLEAR REACTIONS ¹⁹⁷Au(⁶Li, ⁶Li), (⁶Li, ⁶Li'), (⁶Li, X)¹⁹⁸Pb/¹⁹⁹Pb/^199mPb/²⁰⁰Pb/²⁰¹Pb/¹⁹⁶Au/¹⁹⁸Au/¹⁹⁹Au/^197mHg/¹⁹⁹Tl/²⁰⁰Tl, E=23-44 MeV; ¹⁹⁷Au(⁷Li, ⁷Li), (⁷Li, ⁷Li'), (⁷Li, X)¹⁹⁸Pb/¹⁹⁹Pb/^199mPb/²⁰⁰Pb/²⁰¹Pb/¹⁹⁶Au/¹⁹⁸Au/¹⁹⁹Au/^197mHg/^199mHg/¹⁹⁹Tl/²⁰⁰Tl, E=23-44 MeV; measured E-ΔE spectrum, Eγ and Iγ in off-line mode, activation technique, half-lives of isotopes formed in various reaction channels; deduced σ(E) for quasielastic, fusion, neutron-transfer, deuteron and α captures (d and α from breakup of ^6,7Li), barrier distributions. ¹⁹⁷Au(⁶Li, X)¹⁹⁶Hg/¹⁹⁸Hg, ¹⁹⁷Au(⁷Li, X)¹⁹⁶Hg/¹⁹⁸Hg, E=23-44 MeV; measured prompt γ spectra, Eγ, Iγ, γγ-coin, σ(E) using INGA array. Experiments performed at BARC-TIFR Pelletron accelerator facility. Comparison with coupled-channel calculations using CCFULL code.

RADIOACTIVITY ¹⁹⁹Pb(EC), (β⁺); measured Eγ, half-life. Comparison with evaluated data.

doi: 10.1103/PhysRevC.89.024607
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2014PA26 Phys.Rev. C 89, 064610 (2014)

C.S.Palshetkar, S.Santra, A.Shrivastava, A.Chatterjee, S.K.Pandit, K.Ramachandran, V.V.Parkar, V.Nanal, V.Jha, B.J.Roy, S.Kalias

Elastic scattering and α production in the ⁹Be + ⁸⁹Y system

NUCLEAR REACTIONS ⁸⁹Y(⁹Be, ⁹Be), E=18.6, 20.6, 22.7, 24.7, 26.7, 28.7, 33.2 MeV; measured particle spectra, elastic σ(θ, E), inclusive breakup-α σ(θ); deduced ratio of elastic and Rutherford σ(θ), reaction σ at BARC-TIFR Pelletron facility; deduced optical potential parameters, reaction σ(E). Comparison with continuum-discretized coupled-channel (CDCC) and coupled reaction channel (CRC) calculations with α+⁵He and ⁸Be+n cluster models. Indication of breakup threshold anomaly (BTA) for the system. Comparison of reduced σ(E) data from reactions involving scattering of ⁴He on ⁸⁹Y, ⁹²Mo, ^112,120,124Sn targets, ⁶He on ¹²²Sn, ⁶Li on ⁹⁰Zr, ¹³⁸Ba, ⁷Li on ¹³⁸Ba, ⁹Be on ²⁷Al, ⁶⁴Zn, ⁸⁹Y, ¹⁴⁴Sm, ²⁰⁸Pb, ²⁰⁹Bi, ¹²C on ^144,152Sm, and ¹⁶O on ⁴⁰Ca, ⁹²Zr, ¹³⁸Ba.

doi: 10.1103/PhysRevC.89.064610
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2014PA31 Phys.Rev. C 90, 014603 (2014)

A.Parihari, S.Santra, A.Pal, N.L.Singh, K.Mahata, B.K.Nayak, R.Tripathi, K.Ramachandran, P.K.Rath, R.Chakrabarti, S.Kailas

Fission fragment angular distributions in ^{6, 7}Li + ^{235, 238}U reactions

NUCLEAR REACTIONS ^235,238U(⁶Li, F), (⁷Li, F), E=28-42 MeV; measured fission fragment spectra, fission fragment σ(θ, E), fission and fusion σ(E), fission fragment anisotropies as a function of center of mass energy at 14 UD BARC-TIFR pelletron facility; deduced mean square angular momenta <L²> from fission fragment anisotropy. Comparison with statistical saddle-point model (SSPM), entrance-channel dependent (ECD), and coupled-channel (CCDEF code) calculations. Discussed effect of projectile breakup.

doi: 10.1103/PhysRevC.90.014603
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2013DA10 Phys.Rev.Lett. 111, 062502 (2013)

V.M.Datar, D.R.Chakrabarty, S.Kumar, V.Nanal, S.Pastore, R.B.Wiringa, S.P.Behera, A.Chatterjee, D.Jenkins, C.J.Lister, E.T.Mirgule, A.Mitra, R.G.Pillay, K.Ramachandran, O.J.Roberts, P.C.Rout, A.Shrivastava, P.Sugathan

Electromagnetic Transition from the 4⁺ to 2⁺ Resonance in ⁸Be Measured via the Radiative Capture in ⁴He+⁴He

NUCLEAR REACTIONS ⁴He(α, γ), E=19-29 MeV; measured reaction products, Eγ, Iγ; deduced σ; calculated energy levels, proton radii, quadrupole moments, B(E2). Green Function Monte Carlo method, comparison with available data.

doi: 10.1103/PhysRevLett.111.062502
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6232. Data from this article have been entered in the XUNDL database. For more information, click here.

2013RA27 Phys.Rev. C 88, 044617 (2013)

P.K.Rath, S.Santra, N.L.Singh, B.K.Nayak, K.Mahata, R.Palit, K.Ramachandran, S.K.Pandit, A.Parihari, A.Pal, S.Appannababu, SushilK.Sharma, D.Patel, S.Kailas

Complete fusion in ⁷Li+^{144, 152}Sm reactions

NUCLEAR REACTIONS ^144,152Sm(⁷Li, xn), E=20-40 MeV; measured Eγ, Iγ, σ(E) for evaporation residues (ER) ^{147,147m,148,148m,149,149m,154,155,156}Tb formed in x=2-5 channels, and complete fusion σ(E) at BARC-TIFR facility; deduced level-density parameter; calculated σ(E) for ER using statistical model code PACE, σ(E) for fusion using CCFULL and FRESCO coupled-channel codes. Comparison of scaled σ with other reactions and universal fusion function.

doi: 10.1103/PhysRevC.88.044617
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2013SH01 Phys.Lett. B 718, 931 (2013)

A.Shrivastava, A.Navin, A.Diaz-Torres, V.Nanal, K.Ramachandran, M.Rejmund, S.Bhattacharyya, A.Chatterjee, S.Kailas, A.Lemasson, R.Palit, V.V.Parkar, R.G.Pillay, P.C.Rout, Y.Sawant

Role of the cluster structure of ⁷Li in the dynamics of fragment capture

NUCLEAR REACTIONS ¹⁹⁸Pt(⁷Li, α), (⁷Li, t), (⁷Li, d), (⁷Li, p), E=45 MeV; measured reaction products, Eγ, Iγ; deduced σ, two-step process. Comparison with PLATYPUS calculations.

doi: 10.1016/j.physletb.2012.11.064
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2013WI05 Phys.Rev. C 88, 034611 (2013)

E.Williams, D.J.Hinde, M.Dasgupta, R.du Rietz, I.P.Carter, M.Evers, D.H.Luong, S.D.McNeil, D.C.Rafferty, K.Ramachandran, A.Wakhle

Evolution of signatures of quasifission in reactions forming curium

NUCLEAR REACTIONS ²³²Th(¹²C, X)²⁴⁴Cm*, E=61-94 MeV; ²⁰⁸Pb(²⁸Si, X)²³⁶Cm*, E=138-188 MeV; ²⁰⁶Pb(³⁰Si, X)²³⁶Cm*, E=135-198 MeV; ²⁰⁸Pb(³⁰Si, X)²³⁸Cm*, E=154-167 MeV; ²⁰²Hg(³²S, X)²³⁴Cm*, E=157-191 MeV; ¹⁸⁶W(⁴⁸Ti, X)²³⁴Cm*, E=219-235 MeV; ¹⁷⁰Er(⁶⁴Ni, X)²³⁴Cm*, E=280-318 MeV; measured particle spectra, fusion σ(E), angular anisotropies using CUBE detector at Heavy-ion ANU facility; deduced mass-ratio spectra and widths, mass-angle distributions (MAD) as signatures of two-body quasifission. Comparison with Transition-state model and coupled-channel calculations.

doi: 10.1103/PhysRevC.88.034611
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2012DE22 Phys.Scr. T150, 014011 (2012)

A.Dey, S.Kundu, T.K.Rana, K.Banerjee, C.Bhattacharya, M.Biswas, T.K.Ghosh, H.Pai, G.Mukherjee, J.K.Meena, D.Gupta, S.Bhattacharya, S.Mukhopadhyay, D.Pandit, S.R.Banerjee, S.Kumar, A.Chatterjee, K.Ramachandran, K.Mahata, S.Santra, S.Pandit

Study of the 1p transfer channel in the ¹²C + ²⁷Al reaction at 6-7 MeV per nucleon

NUCLEAR REACTIONS ²⁷Al(¹²C, ¹¹B)²⁸Si, E=73, 81, 85 MeV; measured reaction products. ²⁸Si; deduced σ, σ(θ), spectroscopic factors for different excited states. ECIS94 and distorted-wave Born approximation, comparison with available data.

doi: 10.1088/0031-8949/2012/T150/014011
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2012KU19 Phys.Rev. C 85, 064607 (2012)

S.Kundu, C.Bhattacharya, K.Banerjee, T.K.Rana, S.Bhattacharya, A.Dey, T.K.Ghosh, G.Mukherjee, J.K.Meena, P.Mali, S.Mukhopadhyay, D.Pandit, H.Pai, S.R.Banerjee, D.Gupta, P.Banerjee, Suresh Kumar, A.Shrivastava, A.Chatterjee, K.Ramachandran, K.Mahata, S.K.Pandit, S.Santra

Complex-fragment emission in low-energy light-ion reactions

NUCLEAR REACTIONS ²⁸Si(¹²C, X), E=77 MeV; ²⁸Si(¹¹B, X), E=64 MeV; ²⁷Al(¹²C, X), E=73 MeV; measured particle spectra for Z=3-5 fragments, fragment σ(E, θ, Z), total fusion-fission fragment and deep inelastic fragment cross sections, angular distribution of deep inelastic fragments; deduced average Q values, angular momentum dissipation factor with fragment. Comparison with theoretical predictions from statistical model.

doi: 10.1103/PhysRevC.85.064607
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2012RA01 Nucl.Phys. A874, 14 (2012)

P.K.Rath, S.Santra, N.L.Singh, K.Mahata, R.Palit, B.K.Nayak, K.Ramachandran, V.V.Parkar, R.Tripathi, S.K.Pandit, S.Appannababu, N.N.Deshmukh, R.K.Choudhury, S.Kailas

Fusion of ⁶Li with ¹⁵²Sm: Role of projectile breakup versus target deformation

NUCLEAR REACTIONS ¹⁵²Sm(⁶Li, xn), E=20-40 MeV; measured Eγ, Iγ; deduced complete, incomplete fusion σ also for isomeric states ¹⁵⁴Tb^m1,154Tb^m2, reaction mechanism; calculated σ using CC and statistical code PACE, fusion σ using proximity potentials; deduced level density parameters. Comparison of scaled σ with other reactions.

doi: 10.1016/j.nuclphysa.2011.10.004
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2012SA03 Phys.Rev. C 85, 014612 (2012)

S.Santra, S.Kailas, V.V.Parkar, K.Ramachandran, V.Jha, A.Chatterjee, P.K.Rath, A.Parihari

Disentangling reaction mechanisms for α production in the ⁶Li + ²⁰⁹Bi reaction

NUCLEAR REACTIONS ²⁰⁹Bi(⁶Li, α), E=24-50 MeV; measured particle spectra, inclusive breakup α cross sections, σ(E, θ) for α production; calculated breakup and transfer channel contributions. Sum-rule model. Comparison with continuum-discretized-coupled-channels calculations. Systematics of experimental inclusive breakup α cross sections with ⁶Li projectile and ²⁸Si, ⁵⁸Ni, ⁵⁹Co, ⁹⁰Zr, ^118,120Sn, ²⁰⁸Pb, ²⁰⁹Bi targets.

doi: 10.1103/PhysRevC.85.014612
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2011GU19 Phys.Rev. C 84, 031603 (2011)

Y.K.Gupta, D.C.Biswas, R.K.Choudhury, A.Saxena, B.K.Nayak, B.John, K.Ramachandran, R.G.Thomas, L.S.Danu, B.N.Joshi, K.Mahata, S.K.Pandit, A.Chatterjee

Systematics of pre- and near-scission α-particle multiplicities in heavy-ion-induced fusion-fission reactions

NUCLEAR REACTIONS ²³²Th(¹¹B, X), E=62 MeV; measured E(α), α(fission fragment)-coin, α-particle multiplicity spectra; deduced prescission and near-scission components. Systematics of α(pre-scission) and α(near-scission) σ for Ag+³⁷Cl, ¹²⁴Sn+³⁷Cl, ¹⁴¹Pr+²⁸Si, ^164,167,170Er+²⁸Si, ¹⁷⁵Lu+²⁸Si, ¹⁸¹Ta+¹⁹F, ¹⁹⁷Au+¹²C, ¹⁹⁷Au+¹⁶O, ¹⁹⁷Au+¹⁹F, ¹⁹⁷Au+²⁸Si, ²⁰⁸Pb+¹⁹F, ²⁰⁸Pb+²⁸Si, ²³²Th+¹⁶O, ²³²Th+¹⁹F, ²³²Th+²⁸Si, ²³²Th+⁴⁰Ar systems.

doi: 10.1103/PhysRevC.84.031603
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2011LE03 Phys.Lett. B 697, 454 (2011)

A.Lemasson, A.Navin, M.Rejmund, N.Keeley, V.Zelevinsky, S.Bhattacharyya, A.Shrivastava, D.Bazin, D.Beaumel, Y.Blumenfeld, A.Chatterjee, D.Gupta, G.de France, B.Jacquot, M.Labiche, R.Lemmon, V.Nanal, J.Nyberg, R.G.Pillay, R.Raabe, K.Ramachandran, J.A.Scarpaci, C.Schmitt, C.Simenel, I.Stefan, C.N.Timis

Pair and single neutron transfer with Borromean ⁸He

NUCLEAR REACTIONS ¹⁹⁷Au(⁸He, X)¹⁹⁹Au, ⁶⁵Cu(⁸He, X), E=19.9 MeV; measured reaction products, Eγ, Iγ; deduced 2n-transfer σ, model-independent ratio of 2n to 1n transfer reactions, absence of ⁶⁷Cu nuclei.

doi: 10.1016/j.physletb.2011.02.038
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2011PA23 Phys.Rev. C 84, 031601 (2011)

S.K.Pandit, V.Jha, K.Mahata, S.Santra, C.S.Palshetkar, K.Ramachandran, V.V.Parkar, A.Shrivastava, H.Kumawat, B.J.Roy, A.Chatterjee, S.Kailas

Investigation of cluster structure of ⁹Be from high precision elastic scattering data

NUCLEAR REACTIONS ²⁰⁸Pb(⁹Be, ⁹Be), E=24-34 MeV; measured particle spectra, energy loss, σ, σ(θ). Continuum discretized coupled channel (CDCC) and coupled reaction channel (CRC) analysis using the computer code FRESCO. ⁹Be; deduced cluster structures α+⁵He and n+⁸Be from comparison with calculations.

doi: 10.1103/PhysRevC.84.031601
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2011PA25 Radiochim.Acta Supp 1, Proc.in Radiochemistry 131 (2011)

V.V.Parkar, R.Palit, S.K.Sharma, B.S.Naidu, P.K.Joshi, S.Santra, P.K.Rath, K.Ramachandran, K.Mahata, T.Trivedi, A.Raghav

Complete and incomplete fusion in ⁹Be + ¹²⁴Sn system

NUCLEAR REACTIONS ¹²⁴Sn(⁹Be, X), E=26-46 MeV; measured reaction products, Eγ, Iγ; deduced σ.

doi: 10.1524/rcpr.2011.0024
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2011RA15 Int.J.Mod.Phys. E20, 789 (2011)

T.K.Rana, C.Bhattacharya, S.Kundu, K.Banerjee, S.Bhattacharya, G.Mukherjee, T.K.Ghosh, J.K.Meena, P.Dhara, M.Biswas, H.Pai, K.Mahata, S.Kumar, K.Ramachandran, P.C.Rout, S.K.Pandit, V.Nanal, R.G.Pillay

Cluster emission in ¹³C + ¹²C and ¹²C + ¹²C reactions at ∼ 6 MeV/Nucleon

NUCLEAR REACTIONS ¹²C(¹³C, X), (¹²C, X), E ∼ 6 MeV/nucleon; measured reaction products, excitation energy spectrum; deduced energy spectrum, Hoyle state.

doi: 10.1142/S021830131101868X
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2011SA13 Phys.Rev. C 83, 034616 (2011)

S.Santra, S.Kailas, K.Ramachandran, V.V.Parkar, V.Jha, B.J.Roy, P.Shukla

Reaction mechanisms involving weakly bound ⁶Li and ²⁰⁹Bi at energies near the Coulomb barrier

NUCLEAR REACTIONS ²⁰⁹Bi(⁶Li, ⁶Li), (⁶Li, ⁶Li'), (⁶Li, X), E=38 MeV; measured fragment spectra, σ(θ); deduced σ for elastic, inelastic, and transfer channels. Comparison with optical model (OM) and coupled-channel (CC) calculations.

doi: 10.1103/PhysRevC.83.034616
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6184.

2010LE19 Phys.Rev. C 82, 044617 (2010)

A.Lemasson, A.Navin, N.Keeley, M.Rejmund, S.Bhattacharyya, A.Shrivastava, D.Bazin, D.Beaumel, Y.Blumenfeld, A.Chatterjee, D.Gupta, G.de France, B.Jacquot, M.Labiche, R.Lemmon, V.Nanal, J.Nyberg, R.G.Pillay, R.Raabe, K.Ramachandran, J.A.Scarpaci, C.Simenel, I.Stefan, C.N.Timis

Reactions with the double-Borromean nucleus ⁸He

NUCLEAR REACTIONS ⁶⁵Cu(⁸He, X)⁶⁵Cu/⁶⁶Cu/⁶⁷Cu/⁶⁸Zn/⁶⁹Zn/⁶⁸Ga/⁶⁹Ga/⁷⁰Ga, [⁸He secondary beam from C(¹³C, X), E=75 MeV/nucleon primary reaction], E=19.9, 30.6 MeV; measured Eγ, Iγ, neutron spectra, (particle)γ-, (particle)nγ-, γγ-coin, residue σ for fusion and neutron transfer, σ(θ) for ⁴He, ⁶He and ⁸He using EXOGAM array and neutron wall. Coupled reaction channel calculations. CASCADE code used for statistical model calculation.

RADIOACTIVITY ⁸He(β^-)[from ⁶⁵Cu(⁸He, ⁸He), E=19.9, 30.6 MeV]; measured Eγ.

doi: 10.1103/PhysRevC.82.044617
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1869.

2010PA30 Phys.Rev. C 82, 044608 (2010)

C.S.Palshetkar, S.Santra, A.Chatterjee, K.Ramachandran, S.Thakur, S.K.Pandit, K.Mahata, A.Shrivastava, V.V.Parkar, V.Nanal

Fusion of the weakly bound projectile ⁹Be with ⁸⁹Y

NUCLEAR REACTIONS ⁸⁹Y(⁹Be, xn)⁹⁶Tc/⁹⁵Tc/⁹⁴Tc/⁹²Nb, E=19-33 MeV; ⁸⁹Y(¹²C, xn)⁹⁹Rh/⁹⁸Rh/⁹⁷Rh/⁹⁶Tc/⁹⁵Tc, E=32-47 MeV; ⁹³Nb(α, xn)⁹⁶Tc/⁹⁵Tc, E=10-17 MeV; measured Eγ, Iγ, complete and incomplete fusion σ(E), excitation functions deduced barrier distributions and breakup effects. Coupled-channel (CC) calculations.

doi: 10.1103/PhysRevC.82.044608
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6118.

2010PA32 Phys.Rev. C 82, 054601 (2010)

V.V.Parkar, R.Palit, Sushil K.Sharma, B.S.Naidu, S.Santra, P.K.Joshi, P.K.Rath, K.Mahata, K.Ramachandran, T.Trivedi, A.Raghav

Fusion cross sections for the ⁹Be+¹²⁴Sn reaction at energies near the Coulomb barrier

NUCLEAR REACTIONS ¹²⁴Sn(⁹Be, X), E=26-38 MeV; measured Eγ, Iγ, complete and incomplete fusion σ using γ-ray activation method. Comparison with coupled-channel (CC) calculations and with data from other reactions.

doi: 10.1103/PhysRevC.82.054601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6160.

2010SA19 Nucl.Phys. A834, 186c (2010)

S.Santra, V.V.Parkar, K.Ramachandran, A.Shrivastava, B.J.Roy, B.K.Nayak, A.Chatterjee, R.K.Choudhury, S.Kalias

Asymmetry in resonant breakup peaks in ⁶Li+²⁰⁹Bi reaction

NUCLEAR REACTIONS ²⁰⁹Bi(⁶Li, α), (⁶Li, d), E=36, 40 MeV; measured Eα, Iα(θ), Ed, Id(θ), dα-coin; deduced σ(θ). ²⁰⁹Bi(⁶Li, ⁶Li), E=36, 40 MeV; measured σ(θ). Comparison with CDCC calculations. Sequential breakup via resonant state.

doi: 10.1016/j.nuclphysa.2009.12.035
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6115.

2009LE05 Nucl.Instrum.Methods Phys.Res. A598, 445 (2009)

A.Lemasson, A.Shrivastava, A.Navin, M.Rejmund, V.Nanal, S.Bhattacharyya, A.Chatterjee, S.Kailas, K.Mahata, V.V.Parkar, R.G.Pillay, K.Ramachandran, P.C.Rout

Absolute cross-sections from X-γ coincidence measurements

NUCLEAR REACTIONS ¹⁹⁸Pt(⁶Li, X)²⁰¹Tl/²⁰²Tl, E=20-45 MeV; measured Eγ, Iγ, X-ray spectra, (X-ray)γ-coin, evaporation residue cross sections.

doi: 10.1016/j.nima.2008.09.032
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2009PA05 Pramana 72, 363 (2009)

V.V.Parkar, V.Jha, S.Santra, B.J.Roy, K.Ramachandran, A.Shrivastava, K.Mahata, A.Chatterjee, S.Kailas

Reaction mechanism study of ⁷Li(⁷Li, ⁶He) reaction at above Coulomb barrier energies

NUCLEAR REACTIONS ⁷Li(⁷Li, ⁶He), E=20, 25 MeV; measured σ(θ). Compared results to model calculations.

doi: 10.1007/s12043-009-0032-9
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6080.

2009SA26 Phys.Lett. B 677, 139 (2009)

S.Santra, V.V.Parkar, K.Ramachandran, U.K.Pal, A.Shrivastava, B.J.Roy, B.K.Nayak, A.Chatterjee, R.K.Choudhury, S.Kailas

Resonant breakup of ⁶Li by ²⁰⁹Bi

NUCLEAR REACTIONS ²⁰⁹Bi(⁶Li, α), E=36, 40 MeV; measured Eα, Iα, Ed, Id, (charged-particle)(charged-particle)-coin, σ, σ(θ); deduced reaction mechanism features. Comparison with coupled-channel calculations.

doi: 10.1016/j.physletb.2009.05.016
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6079.

2009SH34 Phys.Rev.Lett. 103, 232702 (2009)

A.Shrivastava, A.Navin, A.Lemasson, K.Ramachandran, V.Nanal, M.Rejmund, K.Hagino, T.Ichikawa, S.Bhattacharyya, A.Chatterjee, S.Kailas, K.Mahata, V.V.Parkar, R.G.Pillay, P.C.Rout

Exploring Fusion at Extreme Sub-Barrier Energies with Weakly Bound Nuclei

NUCLEAR REACTIONS ¹⁹⁸Pt(⁶Li, xn)¹⁹⁹Tl/²⁰⁰Tl/²⁰¹Tl/²⁰²Tl, E(cm)<35 MeV; measured x-rays, Eγ, Iγ; deduced fusion and evaporation residue excitation functions, average angular momentum and logarithmic derivatives of the fusion σ, internuclear potentials.

doi: 10.1103/PhysRevLett.103.232702
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1767.

2009TR04 Phys.Rev. C 79, 064607 (2009)

R.Tripathi, K.Sudarshan, S.K.Sharma, K.Ramachandran, A.V.R.Reddy, P.K.Pujari, A.Goswami

Fission fragment angular distributions in the reactions ¹⁶O+¹⁸⁸Os and ²⁸Si+¹⁷⁶Yb

NUCLEAR REACTIONS ¹⁸⁸Os(¹⁶O, X), E=84, 89, 94, 99 MeV; ¹⁷⁶Yb(²⁸Si, X), E=138, 145, 149, 155 MeV; measured fission fragment spectra, fission and complete fusion σ, σ(θ) of fission fragments and anisotropies. Comparisons with statistical saddle point model predictions.

doi: 10.1103/PhysRevC.79.064607
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1713.

2008BI04 Nucl.Phys. A802, 67 (2008)

M.Biswas, S.Roy, M.Sinha, M.K.Pradhan, A.Mukherjee, P.Basu, H.Majumdar, K.Ramachandran, A.Shrivastava

The study of threshold behaviour of effective potential for ⁶Li + ^{58, 64}Ni systems

NUCLEAR REACTIONS ⁶⁴Ni(⁶Li, ⁶Li), E=13?26 MeV; measured σ(θ); ⁵⁸Ni(⁶Li, ⁶Li), E=12?20 MeV; analyzed σ(θ). Double folding optical model, threshold behaviour.

doi: 10.1016/j.nuclphysa.2008.01.025
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6037.

2008CH18 Phys.Rev.Lett. 101, 032701 (2008)

A.Chatterjee, A.Navin, A.Shrivastava, S.Bhattacharyya, M.Rejmund, N.Keeley, V.Nanal, J.Nyberg, R.G.Pillay, K.Ramachandran, I.Stefan, D.Bazin, D.Beaumel, Y.Blumenfeld, G.de France, D.Gupta, M.Labiche, A.Lemasson, R.Lemmon, R.Raabe, J.A.Scarpaci, C.Simenel, C.Timis

1n and 2n Transfer With the Borromean Nucleus ⁶He Near the Coulomb Barrier

NUCLEAR REACTIONS ⁶⁵Cu(⁶He, ⁵He), (⁶He, α), E=22.6 MeV; measured Eα, Iα, Eγ, Iγ, nαγ-coin, 1n, 2n transfer σ(θ). Coupled channel analysis.

doi: 10.1103/PhysRevLett.101.032701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1668.

2008PA26 Phys.Rev. C 78, 021601 (2008)

V.V.Parkar, V.Jha, B.J.Roy, S.Santra, K.Ramachandran, A.Shrivastava, A.Chatterjee, S.R.Jain, A.K.Jain, S.Kailas

Dipole polarizability of ⁷Li from precision measurement of the elastic scattering on ²⁰⁸Pb below the Coulomb barrier

NUCLEAR REACTIONS ²⁰⁸Pb(⁷Li, ⁷Li), E=18-28 MeV; measured reaction product spectra, scattering σ; ⁷Li; deduced dipole polarizability. Comparison with continuum discretized coupled channel calculations.

doi: 10.1103/PhysRevC.78.021601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6073.

2007PA33 Nucl.Phys. A792, 187 (2007)

V.V.Parkar, K.Mahata, S.Santra, S.Kailas, A.Shrivastava, K.Ramachandran, A.Chatterjee, V.Jha, P.Singh

Fusion cross sections for ⁷Li + ¹²C system at near barrier energies

NUCLEAR REACTIONS ¹²C(⁷Li, ⁷Li), E=7.5, 9, 12, 15 MeV; measured elastic σ(θ); deduced optical model parameters. ¹²C(⁷Li, αX), E=7.5, 9, 12, 15 MeV; measured Eα and σ(θ); analyzed fusion and direct σ. Comparison with previous data and model calculations.

doi: 10.1016/j.nuclphysa.2007.05.013
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6015.

2006AD19 Phys.Rev. C 74, 024602 (2006)

S.Adhikari, C.Samanta, C.Basu, B.J.Roy, S.Ray, A.Srivastava, K.Ramachandran, V.Tripathi, K.Mahata, V.Jha, P.Shukla, S.Rathi, M.Biswas, P.R.Chowdhury, A.Chatterjee, S.Kailas

Reaction mechanisms with loosely bound nuclei ⁷Li+⁶Li at forward angles in the incident energy range 14-20 MeV

NUCLEAR REACTIONS ⁶Li(⁷Li, pX), (⁷Li, dX), (⁷Li, tX), (⁷Li, αX), E=14-20 MeV; measured light charged particle yields, spectra, σ(E, θ); deduced reaction mechanism features. Comparison with model predictions.

doi: 10.1103/PhysRevC.74.024602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6047.

2006KA07 Phys.Rev. C 73, 024609 (2006)

K.Kalita, S.Verma, R.Singh, J.J.Das, A.Jhingan, N.Madhavan, S.Nath, T.Varughese, P.Sugathan, V.V.Parkar, K.Mahata, K.Ramachandran, A.Shrivastava, A.Chatterjee, S.Kailas, S.Barua, P.Basu, H.Majumdar, M.Sinha, R.Bhattacharya, A.K.Sinha

Elastic scattering and fusion cross sections for ⁷Be, ⁷Li+²⁷Al systems

NUCLEAR REACTIONS ²⁷Al(⁷Be, ⁷Be'), (⁷Be, X), E=17, 19, 21 MeV; ²⁷Al(⁷Li, ⁷Li), (⁷Li, X), E=10, 13, 16, 19, 24 MeV; measured elastic and quasi-elastic σ(θ), fusion σ; deduced optical model parameters. ²⁷Al(⁷Li, αX), E=10, 13, 16, 19, 24 MeV; measured Eα, σ(θ).

doi: 10.1103/PhysRevC.73.024609
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6007.

2006RA14 Phys.Rev. C 73, 064609 (2006)

K.Ramachandran, A.Chatterjee, A.Navin, K.Mahata, A.Shrivastava, V.Tripathi, S.Kailas, V.Nanal, R.G.Pillay, A.Saxena, R.G.Thomas, S.Kumar, P.K.Sahu

Fission time scale from prescission neutron, proton, and α particle multiplicities in ²⁸Si+¹⁷⁵Lu

NUCLEAR REACTIONS ¹⁷⁵Lu(²⁸Si, nX), (²⁸Si, pX), (²⁸Si, αX), E=159 MeV; measured prescission neutron, proton, and α multiplicities, σ(E, θ). ²⁰³At deduced fission time scale. Deformation dependent particle binding energies and transmission co-efficients, dynamical effects.

doi: 10.1103/PhysRevC.73.064609
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6121.

2006SH07 Phys.Lett. B 633, 463 (2006)

A.Shrivastava, A.Navin, N.Keeley, K.Mahata, K.Ramachandran, V.Nanal, V.V.Parkar, A.Chatterjee, S.Kailas

Evidence for transfer followed by breakup in ⁷Li + ⁶⁵Cu

NUCLEAR REACTIONS ⁶⁵Cu(⁶Li, dα), (⁷Li, dα), (⁷Li, tα), E=25 MeV; measured Eα, Iα, dα-, tα-coin, σ(θ). ⁶⁵Cu(⁶Li, ⁶Li), (⁷Li, ⁷Li), E=25 MeV; measured elastic σ(θ). Comparison with DWBA and coupled channels calculations.

doi: 10.1016/j.physletb.2005.12.060
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0378.

2005TR10 Phys.Rev. C 72, 017601 (2005)

V.Tripathi, A.Navin, V.Nanal, R.G.Pillay, K.Mahata, K.Ramachandran, A.Shrivastava, A.Chatterjee, S.Kailas

Experimental signatures for distinguishing breakup fusion and transfer in ⁷Li + ¹⁶⁵Ho

NUCLEAR REACTIONS ¹⁶⁵Ho(⁷Li, αX), E=42 MeV; measured Eγ, Iγ, (charged particle)γ-coin; deduced transfer and breakup fusion contributions. Comparison with model predictions.

doi: 10.1103/PhysRevC.72.017601
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2004HE22 Nucl.Instrum.Methods Phys.Res. A531, 645 (2004)

M.Hemalatha, S.Kailas, K.Mahata, A.Shrivastava, K.Ramachandran, A.Chatterjee

Production of neutron-deficient nuclei ¹²⁷Cs and ¹²⁹Cs by heavy-ion fusion reaction

NUCLEAR REACTIONS Sn(¹¹B, xn)¹²⁷Cs/¹²⁹Cs, E=34.8-51.1 MeV; measured Eγ, Iγ, production σ.

doi: 10.1016/j.nima.2004.05.120
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0401.

2004NA32 Phys.Rev. C 70, 044601 (2004)

A.Navin, V.Tripathi, Y.Blumenfeld, V.Nanal, C.Simenel, J.M.Casandjian, G.de France, R.Raabe, D.Bazin, A.Chatterjee, M.Dasgupta, S.Kailas, R.C.Lemmon, K.Mahata, R.G.Pillay, E.C.Pollacco, K.Ramachandran, M.Rejmund, A.Shrivastava, J.L.Sida, E.Tryggestad

Direct and compound reactions induced by unstable helium beams near the Coulomb barrier

NUCLEAR REACTIONS ^63,65Cu, ^188,190,192Os(α, X), E=16-34 MeV; ⁶³Cu(⁶He, X), E=30 MeV; ⁶⁵Cu(⁶He, X), E=19.5, 30 MeV; ⁶³Cu(⁸He, X), E=27 MeV; ^188,190,192Os(⁶He, X), E=30 MeV; measured Eγ, Iγ, particle spectra, fusion, transfer, and evaporation residue σ, σ(θ).

doi: 10.1103/PhysRevC.70.044601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6021.

2002TR06 Phys.Rev.Lett. 88, 172701 (2002)

V.Tripathi, A.Navin, K.Mahata, K.Ramachandran, A.Chatterjee, S.Kailas

Angular Momentum and Cross Sections for Fusion with Weakly Bound Nuclei: Breakup, a coherent effect

NUCLEAR REACTIONS ¹⁶⁵Ho(⁷Li, X), E(cm)=21-44 MeV; measured fusion, partial breakup σ, σ(θ), average angular momentum; deduced coherent effect of breakup channel on fusion. One-dimensional barrier penetration model.

doi: 10.1103/PhysRevLett.88.172701
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