NSR Query Results
Output year order : Descending NSR database version of March 18, 2024. Search: Author = B.K.Nayak Found 162 matches. Showing 1 to 100. [Next]2024SH03 Phys.Lett. B 848, 138381 (2024) A.Sharma, P.Dubey, U.Mishra, N.Dubey, J.Pandey, R.Gandhi, A.Pal, A.Baishya, T.Santhosh, P.C.Rout, B.K.Nayak, S.Santra, A.Chakraborty, A.Kumar Study of the surrogate ratio method by determination of 56Fe(n, xp) cross sections NUCLEAR REACTIONS 55Mn, 51V(6Li, α), E=25 MeV; measured reaction products. 57Fe, 53Cr; deduced σ, spin dependence of the proton emission probabilities as a function of excitation energies, the validity of surrogate ratio method for determining (n, xp) reaction cross sections. Comparison with TALYS calculations, EXFOR library. ARC-TIFR Pelletron Accelerator Facility in Mumbai.
doi: 10.1016/j.physletb.2023.138381
2023DH02 Phys.Rev. C 108, 054609 (2023) S.Dhuri, K.Mahata, K.Ramachandran, P.C.Rout, A.Shrivastava, S.K.Pandit, V.V.Parkar, S.Gupta, V.V.Desai, A.Kumar, E.T.Mirgule, B.K.Nayak, A.Saxena Quest for understanding neutron emission in nuclear fission: The case of 210Po
doi: 10.1103/PhysRevC.108.054609
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
2023PA20 Chin.Phys.C 47, 074001 (2023) R.Pachuau, A.Gandhi, N.Singh, A.Kumar, M.Mehta, S.V.Suryanarayana, L.S.Danu, B.K.Nayak, B.Lalremruata Measurement of neutron capture cross section on 71Ga at 2.15 and 3.19 MeV and uncertainty propagation and covariance analysis NUCLEAR REACTIONS 71Ga(n, γ), E=2.15, 3.19 MeV; measured reaction products, Eγ, Iγ; deduced σ, detailed uncertainty propagation and covariance. Comparison with ENDF/B-VIII.0, JEFF-3.1/A, and EXFOR libraries, EMPIRE-3.2, and TALYS-1.95 calculations. Bhabha Atomic Research Centre (BARC), Mumbai, and the Folded Tandem Ion Accelerator (FOTIA) facility.
doi: 10.1088/1674-1137/acce28
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
2023SI09 Phys.Rev. C 107, 054607 (2023) R.K.Singh, N.L.Singh, M.Mehta, R.Chauhan, H.Kumawat, R.Makwana, S.V.Suryanarayana, B.K.Nayak, H.Naik, J.Varmuza, K.Katovsky Experimental and theoretical study of the 65Cu(n, p)65Ni reaction cross section from reaction threshold up to 25 MeV NUCLEAR REACTIONS 65Cu(n, p), E=13.52, 16.86, 19.89 MeV; measured Eγ, Iγ; deduced σ(Ε) relative to standard 27Al(n, α) cross-section. Comparison to other experimental data, TALYS and EMPIRE calculations, and evaluated values from ENDF/B-VIII.0, JEFF-3.3, JENDL-4.0/HE, CENDL-3.2, TENDL-2019, and FENDL-3.2 libraries. HPGe-based activation measurement at 14UD BARC-TIFR Pelletron facility (Mumbai, India).
doi: 10.1103/PhysRevC.107.054607
2023SI19 Appl.Radiat.Isot. 200, 110949 (2023) R.K.Singh, N.L.Singh, M.Mehta, R.Chauhan, S.V.Suryanarayana, R.Makwana, B.K.Nayak, H.Naik, J.Varmuza, K.Katovsky Activation cross section for the (n, 2n) and (n, p) reactions on 103Rh, 48Ti and 52Cr from reaction threshold up to 25 MeV energy region NUCLEAR REACTIONS 103Rh(n, 2n), E<25 MeV; measured reaction products, Eγ, Iγ. 52Cr, 48Ti, 103Rh; deduced σ, nuclear level densities, optical potential. Comparison with TALYS and EMPIRE codes calculations, FENDL-3.2b, CENDL-3.2, JENDL-5.0, and ENDF/B-VIII.0 libraries. The 14UD BARC-TIFR Pelletron facility in Mumbai, India.
doi: 10.1016/j.apradiso.2023.110949
2022GA06 Chin.Phys.C 46, 014002 (2022), Erratum Chin.Phys.C 46, 079001 (2022) A.Gandhi, A.Sharma, R.Pachuau, N.Singh, L.S.Danu, S.V.Suryanarayana, B.K.Nayak, A.Kumar Measurement of (n, α) and (n, 2n) reaction cross sections at a neutron energy of 14.92 ± 0.02 MeV for potassium and copper with uncertainty propagation NUCLEAR REACTIONS 65Cu(n, α), (n, 2n), 41K(n, α), E=14.92 MeV; measured reaction products, Eγ, Iγ; deduced neutron activation σ. Comparison with TALYS and EMPIRE calculations, EXFOR library of experimental data.
doi: 10.1088/1674-1137/ac2ed4
2022GA24 Phys.Rev. C 106, 034609 (2022) R.Gandhi, S.Santra, A.Pal, B.K.Nayak, P.C.Rout, D.Chattopadhyay, A.Kundu, A.Baishya, T.Santhosh, S.K.Pandit, G.Mohanto, A.Diaz-Torres Determination of 57Co(n, xp) cross sections using the surrogate reaction ratio method NUCLEAR REACTIONS 56Fe(6Li, α), E=3.9 MeV; 59Co(6Li, α), E=40.5 MeV; measured reaction products Eα, Iα, (particle)α-coin; deduced proton decay probabilities of the compound 58Co (surrogate of n+57Co) and 61Ni (surrogate of n+60Ni) systems. 57Co(n, xp), E=8.6-18.8; deduced σ(E) via surrogate reaction method using 60Ni(n, xp) σ as the reference. Comparison to JEFF-3.3 evaluated data and TALYS-1.8 calculations. Silicon surface barrier (SSB) detector telescope and Si strip telescopes at BARC-TIFR Pelletron-Linac accelerator facility (Mumbai, India).
doi: 10.1103/PhysRevC.106.034609
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
2022JO03 Eur.Phys.J. A 58, 40 (2022) C.Joshi, H.Kumawat, R.K.Singh, N.L.Singh, D.Patel, B.K.Nayak, J.Acharya, A.Parihari, K.Rani, S.D.Sharma, G.Kaur, I.Ahmed, K.S.Golda, N.Saneesh, M.Kumar, A.Jhingan, P.Sugathan Exploring breakup coupling effect in 7Li+92, 100Mo elastic scattering around Coulomb barrier energies NUCLEAR REACTIONS 92,100Mo(7Li, 7Li), E=15-35 MeV; measured reaction products; deduced σ, optical model potentials. Comparison with continuum-discretized coupled-channels calculations. The General Purpose Scattering Chamber (GPSC) facility at Inter University Accelerator Centre (IUAC), New Delhi.
doi: 10.1140/epja/s10050-022-00690-1
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
2022RA23 J.Phys.(London) G49, 035103 (2022) N.K.Rai, A.Gandhi, M.T.Senthil Kannan, S.K.Roy, N.Saneesh, M.Kumar, G.Kaur, D.Arora, K.S.Golda, A.Jhingan, P.Sugathan, T.K.Ghosh, J.Sadhukhan, B.K.Nayak, N.K.Deb, S.Biswas, A.Chakraborty, A.Parihari, A.Kumar Inference on fission timescale from neutron multiplicity measurement in 18O + 184W NUCLEAR REACTIONS 184W(18O, X)1NN, E=67.23-76.37 MeV; measured reaction products, En, In; deduced pre-scission and post-scission neutron multiplicities, fission yield distributions. Comparison with theoretical calculations. The National Array of Neutron Detectors (NAND) facility of the Inter University Accelerator Center (IUAC), New Delhi.
doi: 10.1088/1361-6471/ac4b3f
2022SI15 Chin.Phys.C 46, 054002 (2022) R.K.Singh, N.L.Singh, R.D.Chauhan, M.Mehta, S.V.Suryanarayana, R.Makwana, B.K.Nayak, H.Naik, T.N.Nag, K.Katovsky Systematic study of the (n, 2n) reaction cross section for 121Sb and 123Sb isotopes NUCLEAR REACTIONS 121,123Sb(n, 2n), 27Al(n, α), E=12.50, 15.79, 18.87 MeV; measured reaction products, Eγ, Iγ; deduced relative σ and covariances. Comparison with JEFF-3.3, ENDF/B-VIII.0, JENDL/AD-2017 and TENDL-2019 libraries. TALYS-1.9 and EMPIRE-3.2.2 calculations, experimental data. The BARC-TIFR Pelletron Linac Facility, Mumbai, India.
doi: 10.1088/1674-1137/ac4a5a
2022VA03 Phys.Rev. C 105, 044613 (2022) V.Vashi, R.Makwana, B.Quintana, M.H.Mehta, B.K.Soni, S.Mukherjee, R.K.Singh, R.Chauhan, P.M.Prajapati, M.Abhangi, S.Vala, N.L.Singh, G.B.Patel, S.V.Suryanarayana, B.K.Nayak, S.C.Sharma, T.N.Nag, Y.Kavun Cross-section measurement of the 114Cd(p, γ)115mIn reaction for nuclear reactor and astrophysical applications NUCLEAR REACTIONS 114Cd(p, γ), (p, n), E=7.83, 12.27, 16 MeV; measured Eγ, Iγ; deduced σ(E), astrophysical S-factor. Comparison to TALYS calculations and other experimental data. Activation techniques. BARC-TIFR Pelletron facility.
doi: 10.1103/PhysRevC.105.044613
2021GA08 Eur.Phys.J. A 57, 1 (2021) A.Gandhi, A.Sharma, R.Pachuau, B.Lalremruata, M.Mehta, P.N.Patil, S.V.Suryanarayana, L.S.Danu, B.K.Nayak, A.Kumar Neutron radiative capture cross section for sodium with covariance analysis NUCLEAR REACTIONS 23Na(n, γ), 115In(n, n'), E=0.6-3.2 MeV; measured reaction products, Eγ, Iγ; deduced relative σ and covariances. Comparison with EXFOR library, TALYS and EMPIRE calculations, ENDF/B-VIII.0, IRDFF-1.05, JENDL-4.0, and JEFF-3.3 evaluations.
doi: 10.1140/epja/s10050-020-00322-6
2021PA39 Eur.Phys.J. A 57, 268 (2021); Erratum Eur.Phys.J. A 57, 281 (2021) R.Pachuau, N.Otuka, C.V.Midhun, A.Gandhi, A.Mazumdar, H.Krishnamoorthy, A.Reza, V.Vatsa, S.V.Suryanarayana, B.K.Nayak, L.S.Danu, T.Patel, S.Bishnoi, I.Pasha, A.Kumar, V.Nanal Fast-neutron induced reaction cross section measurement of tin with dual monitor foils and covariance analysis NUCLEAR REACTIONS Sn(n, X)111Sn/117Sn/123Sn/111In/116In/117In/118In, E ∼ 14.5 MeV; measured reaction products, Eγ, Iγ; deduced elemental and isotopic σ. Comparison with EXFOR, JEFF-3.1/A, JENDL/AD-2017 libraries, TALYS-1.9 calculations.
doi: 10.1140/epja/s10050-021-00578-6
2021SI34 Eur.Phys.J. A 57, 337 (2021) R.K.Singh, N.L.Singh, R.D.Chauhan, M.Mehta, S.V.Suryanarayana, R.Makwana, S.Mukherjee, B.K.Nayak, H.Naik, T.N.Nag, J.Varmuza, K.Katovsky Neutron induced reaction cross section of 51V with covariance analysis NUCLEAR REACTIONS 51V(n, p), E=7.87, 13.05, 16.98 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with ENDF/B-VIII.0, JENDL/AD-2017 libraries, TALYS calculations. The 14UD BARC-TIFR Pelletron Facility, Mumbai, India.
doi: 10.1140/epja/s10050-021-00638-x
2020BI07 Phys.Rev. C 102, 014613 (2020) S.Biswas, A.Chakraborty, A.Jhingan, D.Arora, B.R.Behera, R.Biswas, N.K.Deb, S.S.Ghugre, P.K.Giri, K.S.Golda, G.Kaur, A.Kumar, M.Kumar, B.Mukherjee, B.K.Nayak, A.Parihari, N.K.Rai, S.Rai, R.Raut, R.N.Sahoo, A.K.Sinha Quasielastic scattering measurements in the 28Si + 142, 150Nd systems NUCLEAR REACTIONS 142,150Nd(28Si, 28Si), (28Si, 28Si'), E=84-136 MeV; measured reaction products, E-ΔE correlation plots, quasielastic scattering σ(E) at the 15 UD Pelletron accelerator of IUAC-New Delhi; deduced barrier distributions. Comparison with coupled-channel calculations using CCFULL code.
doi: 10.1103/PhysRevC.102.014613
2020DE17 Eur.Phys.J. A 56, 116 (2020) S.De, G.Mishra, R.G.Thomas, A.Kumar, A.Mitra, B.K.Nayak Measurement of prompt fission neutron and gamma spectra in the fast neutron induced fission o232Th
doi: 10.1140/epja/s10050-020-00127-7
2020GA19 Phys.Rev. C 102, 014603 (2020) A.Gandhi, A.Sharma, A.Kumar, R.Pachuau, B.Lalremruata, S.V.Suryanarayana, L.S.Danu, T.Patel, S.Bishnoi, B.K.Nayak Measurement of (n, γ), (n, p) and (n, 2n) reaction cross sections for sodium, potassium, copper, and iodine at neutron energy 14.92 ± 0.02 MeV with covariance analysis NUCLEAR REACTIONS 23Na(n, γ), 41K, 65Cu(n, p), 127I(n, 2n), E=14.92 MeV; measured Eγ, Iγ in off-line γ-spectroscopy at the Purnima facility of BARC, Mumbai using natural targets; deduce σ and correlation matrix. Comparison with theoretical calculations using TALYS-1.9 and EMPIRE-3.2 with parameters from RIPL, with previous experimental results in the EXFOR database, and with evaluated data in TENDL-2017, IRDFF-1.05, and ENDF/B-VIII libraries.
doi: 10.1103/PhysRevC.102.014603
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
2020GU11 Phys.Lett. B 806, 135473 (2020) Y.K.Gupta, B.K.Nayak, U.Garg, K.Hagino, K.B.Howard, N.Sensharma, M.Senyigit, W.P.Tan, P.D.O'Malley, M.Smith, R.Gandhi, T.Anderson, R.J.deBoer, B.Frentz, A.Gyurjinyan, O.Hall, M.R.Hall, J.Hu, E.Lamere, Q.Liu, A.Long, W.Lu, S.Lyons, K.Ostdiek, C.Seymour, M.Skulski, B.Vande Kolk Determination of hexadecapole (β4) deformation of the light-mass nucleus 24Mg using quasi-elastic scattering measurements NUCLEAR REACTIONS 90Zr(16O, 16O), (24Mg, 24Mg), E=61 MeV; measured reaction products. 24Mg; deduced deformation parameters, σ, B(Eλ). CCFULL calculations.
doi: 10.1016/j.physletb.2020.135473
2020KU22 Nucl.Phys. A1002, 121973 (2020) H.Kumawat, C.Joshi, V.V.Parkar, V.Jha, B.J.Roy, Y.S.Sawant, P.C.Rout, E.T.Mirgule, R.K.Singh, N.L.Singh, B.K.Nayak, S.Kailas Elastic scattering for 6Li+51V and systematic study of breakup threshold anomaly NUCLEAR REACTIONS 51V(6Li, 6Li), E=14-23 MeV; measured reaction products; deduced σ. Comparison with theoretical calculations.
doi: 10.1016/j.nuclphysa.2020.121973
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)/VB=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
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
2020PR13 Phys.Rev. C 102, 054605 (2020) G.K.Prajapati, Y.K.Gupta, B.V.John, B.N.Joshi, H.Kaur, N.Kumar, L.S.Danu, S.Mukhopadhyay, S.Dubey, S.R.Jain, D.C.Biswas, B.K.Nayak Temperature and isospin dependence of the level-density parameter in the A ≈ 110 mass region NUCLEAR REACTIONS 94Mo(16O, X)110Sn*, E=55, 60, 70, 75, 80 MeV; 100Mo(16O, X)116Sn*, E=55, 60, 70, 75, 80, 95.5, 104.9, 114.6, 124.6, 136.6 MeV; measured reaction products, Eα, Iα, angular distributions using CsI(Tl) detectors in a Charge Particle Detector Array at the BARC-TIFR Pelletron Linac Accelerator facility; deduced double-differential σ(Eα), averaged α-particle energy spectra, inverse level-density parameter for Cd nuclei as a function of temperature and isospin. Statistical model analysis of experimental data using PACE2 code.
doi: 10.1103/PhysRevC.102.054605
2020SH13 J.Phys.(London) G47, 065106 (2020) A.Sharma, A.Gandhi, N.Singh, S.V.Suryanarayana, B.K.Nayak, A.Kumar Exploitation of surrogate reaction method for deriving proton induced fission cross sections of short lived actinides NUCLEAR REACTIONS 240Pu, 234,233Th, 236U(p, F), 240Am, 233,234Pa, 236Np(n, F), E<25 MeV; analyzed available data; calculated proton-induced reactions σ using neutron-induced reaction σ from TENDL-2017, JENDL-4.0.
doi: 10.1088/1361-6471/ab8916
2020SO07 Eur.Phys.J.Plus 135, 300 (2020) B.Soni, S.Parashari, S.Mukherjee, R.Makwana, S.V.Suryanarayana, B.K.Nayak, H.Naik, J.Varmuza, K.Katovsky Measurement of (n, xn) reaction cross sections on 113, 115In isotopes using quasi-monoenergetic neutrons within 10-20 MeV NUCLEAR REACTIONS 113,115In(n, n'), 115In(n, 2n), E=10.95, 13.97, 16.99, 20 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with the EXFOR library and TALYS nuclear model calculations.
doi: 10.1140/epjp/s13360-020-00313-y
2019CH25 Europhys.Lett. 126, 12002 (2019) R.K.Choudhury, Ajay Kumar, R.G.Thomas, G.Mishra, A.Mitra, B.K.Nayak, A.Saxena Anomalous oscillatory features in neutron emission from D + D fusion in palladium at 100 keV implantation energy NUCLEAR REACTIONS 2H(d, X), E=100 keV; measured reaction products, En, In; deduced neutron yields. Comparison with GEANT4 calculations, EXFOR library.
doi: 10.1209/0295-5075/126/12002
2019GA32 Phys.Rev. C 100, 054613 (2019) R.Gandhi, B.K.Nayak, S.V.Suryanarayana, A.Pal, G.Mohanto, S.De, A.Parihari, A.Kundu, P.C.Rout, S.Santra, K.Mahata, B.Srinivasan, E.T.Mirgule, J.Pandey Determination of 53Mn(n, xp) cross sections using the surrogate reaction ratio method NUCLEAR REACTIONS 52Cr(6Li, α)54Mn*, E=33.0 MeV; 59Co(6Li, α), 61Ni*, E=40.5 MeV; measured projectile-like fragments (PLFs): protons, deuterons, tritons, and α particles, pα-coin using ΔE-E detector telescope at the BARC-TIFR Pelletron Accelerator Facility; deduced excitation energy spectra of the target-like fragments, proton decay probabilities of the excited compound nuclei 54Mn and 61Ni. 53Mn(n, xp), (n, p), (n, np), E<20 MeV; deduced σ(E) using the surrogate reaction ratio method using 60Ni(n, xp) literature cross-section values as reference. Comparison of deduced σ(E) with TALYS-1.8 predictions using different level-density models, and with evaluated nuclear data libraries: EAF-2010, ROSFOND-2010, and JEFF-3.3.
doi: 10.1103/PhysRevC.100.054613
2019KA29 Phys.Rev. C 100, 014620 (2019) K.Kapoor, N.Bansal, C.Sharma, S.Verma, K.Rani, R.Mahajan, B.R.Behera, K.P.Singh, A.Kumar, H.Singh, R.Dubey, N.Saneesh, M.Kumar, A.Yadav, A.Jhingan, P.Sugathan, B.K.Nayak, A.Saxena, H.P.Sharma, S.K.Chamoli Role of viscosity in fusion-fission dynamics via simultaneously measured neutron and α-particle multiplicities NUCLEAR REACTIONS 196Pt(16O, X)212Rn*, E=93, 99, 106 MeV pulsed beam; measured reaction products, particle-identification plot, Eα, Iα, En, In, (fragment)α- and (fragment)n-coin, pre-, and post-scission α and n multiplicity spectra, angular distributions using multiwire proportional counters for fragment detection, CsI(Tl) detectors for α detection, and organic scintillators for neutron detection at 15UD Pelletron facility of IUAC, New Delhi. Comparison with statistical model calculations using JOANNE2 code.
doi: 10.1103/PhysRevC.100.014620
2019KU06 Phys.Rev. C 99, 034609 (2019) A.Kundu, S.Santra, A.Pal, D.Chattopadhyay, R.Tripathi, B.J.Roy, T.N.Nag, B.K.Nayak, A.Saxena, S.Kailas Low-lying quadrupole and octupole collective excitations in the 112, 116, 118, 120, 122, 124Sn isotopes NUCLEAR REACTIONS 112,116,118,120,122,124Sn(7Li, 7Li), (7Li, 7Li'), (7Li, 6Li), (7Li, 6He), E=28 MeV; measured reaction products, and differential σ(θ) for λ=2 and L=3 transitions in inelastic scattering using enriched targets and silicon surface barrier ΔE-E telescopes for fragment detection at BARC-TIFR Pelletron accelerator facility. 112,116,118,120,122,124Sn; deduced levels, deformation lengths for λ=2 and 3 excitations, proton and neutron transition matrix elements, Mn/Mp, B(E2), B(IS2), B(E3), B(IS3) for the first 2+ and 3- states in Sn nuclei. Optical model analysis using coupled reaction channels (CRC), and continuum discretized coupled channels (CDCC) calculations. 116Sn(p, p'), E=24.5 MeV; 116Sn(3He, 3He'), E=270 MeV; 116Sn(α, α'), E=40 MeV; 116Sn(6Li, 6Li'), E=240 MeV; comparison with previous σ(θ) data and calculations for λ=3 excitation in 116Sn.
doi: 10.1103/PhysRevC.99.034609
2019KU15 Phys.Rev. C 100, 024614 (2019) A.Kundu, S.Santra, A.Pal, D.Chattopadhyay, T.N.Nag, R.Gandhi, P.C.Rout, B.J.Roy, B.K.Nayak, S.Kailas Reaffirmation of probe dependence of the mass deformation length for low-lying excitations in 112, 116, 118, 120, 122, 124Sn isotopes NUCLEAR REACTIONS 112,116,118,120,122,124Sn(12C, 12C), (12C, 12C'), E=60 MeV; measured reaction products, outgoing projectile-like fragments, angular distributions; deduced differential elastic and inelastic cross sections. 112,116,118,120,122,124Sn; deduced levels, deformation lengths δ2 and δ3, matrix elements, transition probabilities (B(E2), B(IS2), B(E3), B(IS3)), Mn/Mp ratios for the first 2+ and 3- states extracted via coupled reaction channels (CRC) calculations with the collective model approach. Experiment performed at the BARC-TIFR Pelletron accelerator facility, Mumbai, India.
doi: 10.1103/PhysRevC.100.024614
2019KU17 Phys.Rev. C 100, 034327 (2019) A.Kundu, S.Santra, A.Pal, D.Chattopadhyay, R.Raut, R.Palit, Md.S.R.Laskar, F.S.Babra, C.S.Palshetkar, B.K.Nayak, S.Kailas Measurement of the 2+1 level lifetime in 120Sn by the Doppler shift attenuation method: Evidence of enhanced collectivity NUCLEAR STRUCTURE 120Sn(32S, 32S')120Sn*, E=120 MeV; measured Eγ, Iγ, γ(θ) using enriched target and INGA array of 11 Compton-suppressed HPGe detectors, half-life of the first 2+ level in 120Sn from DSAM at the BARC-TIFR Pelletron LINAC facility. 120Sn; deduced level, B(E2) for the first 2+ state, enhanced collectivity, anharmonic nature of quadrupole vibrations; compiled experimental B(E2) values for the first 2+ states in 112,114,116,118,120,122,124Sn.
doi: 10.1103/PhysRevC.100.034327
2019MO25 Phys.Rev. C 100, 011602 (2019) G.Mohanto, A.Parihari, P.C.Rout, S.De, E.T.Mirgule, B.Srinivasan, K.Mahata, S.P.Behera, M.Kushwaha, D.Sarkar, B.K.Nayak, A.Saxena, A.K.R.Kumar, A.Gandhi, Sangeeta, N.K.Deb, P.Arumugam Collective enhancement in nuclear level density NUCLEAR REACTIONS 181Ta, 197Au(11B, X)192Pt*/208Pb*, E=61.5, 63.0 MeV; measured Eα, Iα, neutron time of flight, E(n), I(n), and αn-coin from the compound nuclei using ΔE-E telescopes for charged particle detection and liquid scintillator array for neutron detection at the BARC-TIFR LINAC-Pelletron facility. 188Os, 204Pb; deduced inverse level density parameters as a function of excitation energy, and energy-dependent collective enhancement factor obtained from simultaneous fitting of the neutron spectra. 169Tm, 181Ta(α, X), E=26-40 MeV; analyzed previous experimental yields with model calculations. 187Os, 203Pb; calculated temperature dependent free energy surfaces. Comparison with statistical model calculations.
doi: 10.1103/PhysRevC.100.011602
2019MU01 Appl.Radiat.Isot. 143, 72 (2019) S.Mukherjee, V.Vansola, S.Parashari, R.Makwana, N.L.Singh, S.V.Suryanarayana, S.C.Sharma, B.K.Nayak, H.Naik Measurement of 232Th and 238U neutron capture cross-sections in the energy range 15-17 MeV NUCLEAR REACTIONS 232Th, 238U(n, γ), E=15-17 MeV; measured reaction products, Eγ, Iγ; deduced σ and uncertainties. Comparison with TALYS-1.9 calculations, ENDF/B-VII.1 and JENDL-4.0 evaluated nuclear data libraries.
doi: 10.1016/j.apradiso.2018.10.013
2019PA02 Phys.Rev. C 99, 014611 (2019) J.Pandey, B.Pandey, A.Pal, S.V.Suryanarayana, S.Santra, B.K.Nayak, E.T.Mirgule, A.Saxena, D.Chattopadhyay, A.Kundu, V.V.Desai, A.Parihari, G.Mohanto, D.Sarkar, P.C.Rout, B.Srinivasan, K.Mahata, B.J.Roy, S.De, H.M.Agrawal Determination of 59Ni (n, xp) reaction cross sections using surrogate reactions NUCLEAR REACTIONS 56Fe(6Li, d), (6Li, X), E=35.9 MeV; 59Co(6Li, α), (6Li, X), E=40.5 MeV; measured protons, deuterons, α, pd- and pα-coin, differential σ(θ) using ΔE-E telescopes for charged particle detection at the BARC-TIFR Pelletron Accelerator Facility in Mumbai. 60Ni(n, p), (n, 2p), E=5-20 MeV; analyzed σ(E). 59Ni(n, xp), E=11.9-15.8 MeV; deduced σ by surrogate ratio method through the 56Fe(6Li, d) reaction, and using 59Co(6Li, α) reaction as reference. Comparison with theoretical calculations using TALYS-1.8 code with microscopic level densities, and with evaluated data libraries ROSFOND-2015, TENDL-2015 and ENDF/B-VIII.
doi: 10.1103/PhysRevC.99.014611
2019PA14 Phys.Rev. C 99, 024620 (2019) A.Pal, S.Santra, D.Chattopadhyay, A.Kundu, A.Jhingan, P.Sugathan, B.K.Nayak, A.Saxena, S.Kailas Measurement of incomplete fusion cross sections in 6, 7Li + 238U reactions NUCLEAR REACTIONS 238U(6Li, F), (6Li, αF), (6Li, tF), (6Li, dF), (6Li, pF), (7Li, F), (7Li, αF), (7Li, tF), (7Li, dF), (7Li, pF)241Pu/242Pu/243Pu/244Pu/240Np/241Np, E=30, 34, 40, 31.2, 41.4 MeV; measured reaction products, triple coincidences between the two fission fragments and one light charged projectile-like fragment (PLF), complete fusion (CF) and incomplete fusion (ICF) differential σ(θ, E), and total σ(E) using two multiwire proportional counter (MWPC) detectors and an array of CSI(Tl) scintillation detectors at the Pelletron accelerator facility of IUAC-New Delhi. Monte Carlo simulation and fission probability by GEF code. Comparison with previous experimental data for different systems, and with continuum discretized coupled channels (CDCC) calculations using FRESCO code. Systematics of ratios of total fusion cross-sections for 6Li and 7Li projectiles on 24Mg, 28Si, 59Co, 64Zn, 124Sn, 159Tb, 197Au, 232Au, 238U targets. Discussed difference in peak to valley ratio between complete fusion (CF) and total fission.
doi: 10.1103/PhysRevC.99.024620
2019PA19 Phys.Rev. C 99, 044602 (2019) S.Parashari, S.Mukherjee, S.V.Suryanarayana, B.K.Nayak, R.Makwana, N.L.Singh, H.Naik Systematic analysis of the neutron-induced reaction cross sections for natMo isotopes within 10-20 MeV NUCLEAR REACTIONS 100Mo(n, 2n), E=10.95, 13.97, 16.99, 20.00 MeV; measured Eγ, Iγ, σ(E) using offline γ spectroscopy at the 14UD BARC-TIFR Pelletron facility, Mumbai; deduced covariance matrix and corresponding correlation coefficients. Comparison with literature values, evaluated ENDF/B-VII.1, JENDL-4.0, JEFF-3.2, and CENDL-3.1 libraries, and with theoretical predictions using TALYS-1.9 and ALICE-2017 codes. Comparison of theoretical (n, 2n), (n, p) and (n, α) reaction σ around 14.5 MeV neutron energy on A=92, 94, 95, 96, 97, 98 and 100 targets with experimental values from EXFOR database. Relevance to medical accelerators, dosimetry, and fast reactor systems.
doi: 10.1103/PhysRevC.99.044602
2019PA31 Nucl.Phys. A987, 128 (2019) S.Parashari, S.Mukherjee, B.K.Nayak, H.Naik, S.V.Suryanarayana, R.Makwana, N.L.Singh Excitation function of the natTi(p, x)48V, 47, 46, 44mSc reactions within the energy range of 10-22 MeV NUCLEAR REACTIONS Ti(p, x)48V, 47, 46, 44mSc, E=22 MeV; measured thick-foil off-line activation Eγ, Iγ; deduced 44m,46,47Sc, 48V production σ; Ti(p, x)44Sc, E=5-35 MeV; Ti(p, x)46Sc, E=5-25 MeV; Ti(p, x)47Sc, E=7-30 MeV; Ti(p, x)48V, E=5-25 MeV; measured thick-foil off-line activation Eγ, Iγ; deduced 44m,46,47Sc, 48V production σ; calculated production σ using TALYS-1.9 and/or ALICE-2014 calculations and compared with EXFOR data library; calculated pre-equilibrium fraction σpre vs energy.
doi: 10.1016/j.nuclphysa.2019.04.009
2019PA34 Eur.Phys.J. A 55, 51 (2019) S.Parashari, S.Mukherjee, H.Naik, S.V.Suryanarayana, R.Makwana, B.K.Nayak, N.L.Singh Measurement of the 58Ni(n, p)58Co and 58Ni(n, 2n)57Ni reaction cross-sections for fast neutron energies up to 18 MeV NUCLEAR REACTIONS 58Ni(n, p)58Co, (n, 2n)57Ni, E=threshold-18 MeV; measured activation NUCLEAR REACTIONS 58Ni(n, p)58Co;58Ni(n, 2n)57Ni, E=threshold-18 MeV[monoenergetic neutrons from 7Li(p, n)]; measured activation off-line Eγ, Iγ; deduced covariance matrix for detectors 1 and 2 efficiencies, monitor σm and sample σm, deduced uncertainties; calculated σ using nuclear model codes TALYS-1.9 and EMPIRE-3.2.3-Malta with various level densities; σ compared with literature values, and with evaluated data ENDF-B/VII.1, JENDL-4.0, CENDL-3.1, JEFF-3.3 (comparison to En=21, 25 or 30 MeV, somewhat higher than the experimental data).
doi: 10.1140/epja/i2019-12726-2
2019PA52 Nucl.Phys. A992, 121613 (2019) R.Pachuau, B.Lalremruata, A.Gandhi, S.V.Suryanarayana, B.K.Nayak, A.Kumar, L.S.Danu Neutron induced cross section measurements on gallium isotopes at neutron energy 14.90 ± 0.01 MeV and covariance analysis NUCLEAR REACTIONS 69Ga(n, p), (n, 2n), E=14.90 MeV;71Ga(n, p), (n, n'α), (n, 2n), E=14.90 MeV; measured reaction products, Eγ, Iγ; deduced σ from threshold to ≈ 20 MeV; calculated covariance analysis of measured σ results, compared with EXFOR database, TALYS-1.9 calculations and ENDF/B-VIII.0 and JENDL-4.0 databases.
doi: 10.1016/j.nuclphysa.2019.121613
2019RA18 Phys.Rev. C 100, 014614 (2019) N.K.Rai, A.Gandhi, Ajay Kumar, N.Saneesh, M.Kumar, G.Kaur, A.Parihari, D.Arora, K.S.Golda, A.Jhingan, P.Sugathan, T.K.Ghosh, J.Sadhukhan, B.K.Nayak, N.K.Deb, S.Biswas, A.Chakraborty Measurement of neutron multiplicity to investigate the role of entrance channel parameters on the nuclear dissipation NUCLEAR REACTIONS 186W(18O, X), E=96.49, 101.50, 106.51 MeV; measured fission fragments, time-of-flight for fission fragments, E(n), I(n), (fragment)n-coin, angular distribution of neutrons, pre- and post-scission neutron multiplicity and temperature, and nuclear dissipation parameter using the NAND array of organic liquid scintillator detectors for neutron detection and multiwire proportional counters for fragment detection at the 15UD Pelletron accelerator of IUAC, New Delhi; deduced variation of the dissipation parameter β with respect to the entrance channel mass asymmetry. Comparison with statistical model calculations using the code VECSTAT.
doi: 10.1103/PhysRevC.100.014614
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
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
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
2018GO19 J.Radioanal.Nucl.Chem. 317, 1409 (2018) A.Gopalakrishna, S.V.Suryanarayana, H.Naik, B.K.Nayak, B.J.Patil, S.Devraju, R.R.Upreti, R.Kinhikar, D.D.Deshpande, P.M.Kamaldeep, S.Banerjee, A.Saxena Production of 99Mo and 64Cu in a mixed field of photons and neutrons in a clinical electron linear accelerator NUCLEAR REACTIONS 98Mo, 63Cu(n, γ), 100Mo, 65Cu(γ, n), E<15 MeV; measured reaction products, Eγ, Iγ; deduced yields. Comparison with available data.
doi: 10.1007/s10967-018-6016-9
2018PA22 Phys.Rev. C 97, 064617 (2018) R.Pachuau, B.Lalremruata, N.Otuka, S.V.Suryanarayana, L.R.M.Punte, L.R.Hlondo, V.V.Desai, B.Satheesh, S.Kailas, S.Ganesan, B.K.Nayak, A.Saxena Energy dependence of the neutron capture cross section on 70Zn near the inelastic scattering threshold NUCLEAR REACTIONS 70Zn(n, γ)71mZn, E=0.4, 0.7 MeV; measured Eγ, Iγ σ(E) by γ activation method at the Tandem Accelerator (FOTIA) Facility, BARC, Mumbai. 115In(n, n'), E=0.4, 0.7 MeV; measured neutron flux. 197Au(n, γ), E=0.4, 0.7 MeV; used as monitor reaction. Comparison with theoretical calculations using TALYS-1.8 code, and with previous experimental results.
doi: 10.1103/PhysRevC.97.064617
2018PA26 Phys.Rev. C 98, 014625 (2018) S.Parashari, S.Mukherjee, A.P.Singh, V.Vansola, H.Naik, B.K.Nayak, R.Makwana, S.V.Suryanarayana, N.L.Singh, M.Mehta, Y.S.Sheela, M.Karkera, R.D.Chauhan, S.C.Sharma Measurement of 232Th (n, γ) reaction cross sections in the neutron energy range of 11-19 MeV NUCLEAR REACTIONS 232Th(n, γ), E=11-19 MeV; measured Eγ, Iγ, σ(E) using activation and offline γ-ray spectrometric techniques at the BARC-TIFR Pelletron facility. Comparison with previous experimental values, evaluated data in ENDF/B-VII.1 and JENDL-4.0 libraries, and with theoretical calculations using TALYS-1.8 code with both default and adjusted parameter sets.
doi: 10.1103/PhysRevC.98.014625
2018PA41 Nucl.Phys. A978, 160 (2018) S.Parashari, S.Mukherjee, B.K.Nayak, R.Makwana, S.V.Suryanarayana, H.Naik, S.C.Sharma Excitation functions of the p + 93Nb reaction in the energy range 10-22 MeV NUCLEAR REACTIONS 93Nb(p, n)93mMo, (p, pn)92mNb, (p, αn), 89gZr, E=0-22 MeV; measured off-line Eγ, Iγ; deduced σ; compared to EXFOR data; calculated σ using TALYS-1.9.
doi: 10.1016/j.nuclphysa.2018.08.002
2018PA42 Phys.Rev. C 98, 031601 (2018) A.Pal, S.Santra, D.Chattopadhyay, A.Kundu, A.Jhingan, P.Sugathan, N.Saneesh, M.Kumar, N.L.Singh, A.Yadav, C.Yadav, R.Dubey, K.Kapoor, K.Rani, H.Arora, A.C.Visakh, D.Kaur, B.K.Nayak, A.Saxena, S.Kailas, K.-H.Schmidt Mass distributions of fission fragments from nuclei populated by multinucleon transfer or incomplete fusion channels in 6, 7Li + 238U reactions NUCLEAR REACTIONS 238U(6Li, F), (6Li, αF), (6Li, tF), (6Li, dF), (6Li, pF), (7Li, F), (7Li, αF), (7Li, tF), (7Li, dF), (7Li, pF)241Pu/242Pu/243Pu/244Pu/240Np/241Np, E=30, 34, 40, 31.4, 41.4 MeV; measured mass and folding angle distributions for inclusive fission and fission fragments in coincidence with α, t, d, and p at IUAC-New Delhi Pelletron accelerator facility; deduced peak/valley ratio for inclusive and breakup/transfer-fission. Comparison with previous experimental data, and with predictions of GEF code. Discussed shell correction parameter for symmetric fragments.
doi: 10.1103/PhysRevC.98.031601
2018PA46 Nucl.Phys. A979, 102 (2018) S.Parashari, S.Mukherjee, S.V.Suryanarayana, R.Makwana, B.K.Nayak, A.Shanbhag, H.Naik Excitation function of the p + natAg reactions in the energy range 10-22 MeV NUCLEAR REACTIONS Ag(p, x), E=10-22 MeV; measured Eγ, Iγ of reaction residues 107Cd, 106gAg, 106mAg; deduced σ; calculated σ using ALICE-2014 and TALYS-1.9 with different level density models. Compared also with available published data (in wider energy range than measured here).
doi: 10.1016/j.nuclphysa.2018.09.042
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
2018SO19 Appl.Radiat.Isot. 141, 10 (2018) B.K.Soni, R.Makwana, S.Mukherjee, S.Parashari, S.V.Suryanarayana, B.K.Nayak, H.Naik, M.Mehta Neutron capture cross-sections for 159Tb isotope in the energy range of 5 to 17 MeV NUCLEAR REACTIONS 159Tb(n, γ), E=5-17 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with ENDF/B-VII.1 and JENDL-4.0 data libraries, TALYS 1.9 nuclear model code calculations.
doi: 10.1016/j.apradiso.2018.08.009
2017KA16 Acta Phys.Pol. B48, 619 (2017) G.Kaur, B.R.Behera, A.Jhingan, R.Dubey, M.Thakur, P.Sharma, R.Mahajan, T.Banerjee, Khushboo, N.Saneesh, A.Kumar, S.Mandal, B.K.Nayak, A.Saxena, P.Sugathan, N.Rowley Influence of Positive Q-value Neutron Transfer Coupling on Fusion Enhancement in 28Si+154Sm Reaction NUCLEAR REACTIONS 154Sm(28Si, 30Si), E(eff)=85-115 MeV; calculated QE barrier distribution vs E(eff) using CCFULL code with vibrational and rotational couplings for the 2+1 state of 28Si, deformation before and after 2n transfer. Compared with data published by the same group and with calculations for other 28Si reactions.
doi: 10.5506/APhysPolB.48.619
2017KA58 Phys.Rev. C 96, 054605 (2017) K.Kapoor, S.Verma, P.Sharma, R.Mahajan, N.Kaur, G.Kaur, B.R.Behera, K.P.Singh, A.Kumar, H.Singh, R.Dubey, N.Saneesh, A.Jhingan, P.Sugathan, G.Mohanto, B.K.Nayak, A.Saxena, H.P.Sharma, S.K.Chamoli, I.Mukul, V.Singh Fission time scale from pre-scission neutron and α multiplicities in the 16O + 194Pt reaction NUCLEAR REACTIONS 194Pt(16O, X)210Rn*, E=98.4 MeV; measured Eα, Iα, fission fragments, (fragments)α-coin, angular distributions using multiwire proportional counters (MWPC) for detection of fission fragments, and an array of CsI detectors for α particles at 15UD Pelletron facility of IUAC-New Delhi; deduced particle identification plot, fission fragments mass ratio distribution, normalized α-particle multiplicity spectra, dissipation energy and dinucleus elongation as function of time and angular momentum, transient times and saddle to scission times. Comparison with statistical model calculations using JOANNE2 code.
doi: 10.1103/PhysRevC.96.054605
2017KU06 Phys.Rev. C 95, 034615 (2017) A.Kundu, S.Santra, A.Pal, D.Chattopadhyay, R.Tripathi, B.J.Roy, T.N.Nag, B.K.Nayak, A.Saxena, S.Kailas Elastic, inelastic, and 1-nucleon transfer channels in the 7Li + 120Sn system NUCLEAR REACTIONS 120Sn(7Li, 7Li), (7Li, 7Li'), (7Li, 6Li), (7Li, 6He), E=28, 30 MeV; measured proton, deuteron, triton, α, 6He, 6,7,8Li spectra differential σ(θ, E) using E-ΔE detector system at BARC-TIFR Pelletron facility. 120,121Sn, 121Sb; deduced levels, cross sections, particle-core spectroscopic factors for 1n- and 1p- transfer reactions. Cross sections compared with coupled-reaction-channels (CRC) calculations.
doi: 10.1103/PhysRevC.95.034615
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
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
2017PA41 Phys.Rev. C 96, 054613 (2017) A.Parihari, G.Mohanto, G.Kaur, A.Jhingan, K.Mahata, R.G.Thomas, P.C.Rout, E.T.Mirgule, V.V.Desai, B.Srinivasan, C.Joshi, V.Mishra, M.Kushwaha, S.Gupta, D.Sarkar, S.V.Suryanarayana, A.Shrivastava, N.L.Singh, A.Misra, B.K.Nayak, A.Saxena Experimental study of the transfer-induced fission fragment angular distribution in the 6Li + 238U reaction NUCLEAR REACTIONS 238U(6Li, F), E=36, 40 MeV; measured transfer-induced fission fragments, two-dimensional E-ΔE spectrum, σ(θ, E), fragment anisotropies, transfer-induced fragment angular distributions for α and d transfers using multiwire proportional counters (MWPCs) at BARC-TIFR 14-UD Pelletron-LINAC facility. Comparison with pre-equilibrium fission (PEF) model calculations.
doi: 10.1103/PhysRevC.96.054613
2017PA46 Chin.Phys.C 41, 104001 (2017) D.Patel, S.Mukherjee, N.Deshmukh, J.Lubian, J.-S.Wang, T.Correa, B.K.Nayak, Y.-Y.Yang, W.i-H.Ma, D.C.Biswas, Y.K.Gupta, S.Santra, E.T.Mirgule, L.S.Danu, N.L.Singh, A.Saxena Influence of breakup on elastic and α-production channels in the 6Li+ 116Sn reaction NUCLEAR REACTIONS 116Sn(6Li, X)4H, E=22-40 MeV; measured reaction products, Eα, Iα; deduced σ(θ). Comparison with the predictions of continuum-discretized coupled channels (CDCC) calculations.
doi: 10.1088/1674-1137/41/10/104001
2017PU02 Phys.Rev. C 95, 024619 (2017) L.R.M.Punte, B.Lalremruata, N.Otuka, S.V.Suryanarayana, Y.Iwamoto, R.Pachuau, B.Satheesh, H.H.Thanga, L.S.Danu, V.V.Desai, L.R.Hlondo, S.Kailas, S.Ganesan, B.K.Nayak, A.Saxena Measurements of neutron capture cross sections on 70Zn at 0.96 and 1.69 MeV NUCLEAR REACTIONS 70Zn(n, γ)71mZn, 197Au(n, γ)198Au, E=0.96, 1.69 MeV; measured Eγ, Iγ, capture σ(E) by γ-activation method at the Folded Tandem Ion Accelerator (FOTIA) facility of BARC, Mumbai. Comparison with the theoretical prediction by TALYS-1.6 with various level-density models and γ-ray strength functions, and TENDL-2015 JENDL-4.0 evaluated libraries.
doi: 10.1103/PhysRevC.95.024619
2016AP03 Phys.Rev. C 94, 044618 (2016) S.Appannababu, M.Cinausero, T.Marchi, F.Gramegna, G.Prete, J.Bermudez, D.Fabris, G.Collazuol, A.Saxena, B.K.Nayak, S.Kailas, M.Bruno, L.Morelli, N.Gelli, S.Piantelli, G.Pasquali, S.Barlini, S.Valdre, E.Vardaci, L.Sajo-Bohus, M.Degerlier, A.Jhingan, B.R.Behera, V.L.Kravchuk Mass, total kinetic energy, and neutron multiplicity correlations in the binary fragmentation of 50Ti + 208Pb at 294 MeV bombarding energy NUCLEAR REACTIONS 208Pb(50Ti, X), E=294 MeV; measured reaction products, time-of-flight, angular distributions, total kinetic energy (TKE), fragment-fragment-neutron correlations, mass-yield distribution, differential neutron energy spectra as function of angle at TANDEM-ALPI accelerator facility of LNL-Legnaro; deduced neutron multiplicities. Comparison with PACE2 statistical model calculations. Relevance to formation of superheavy elements.
doi: 10.1103/PhysRevC.94.044618
2016AY04 Phys.Rev. C 93, 054317 (2016) A.D.Ayangeakaa, U.Garg, C.M.Petrache, S.Guo, P.W.Zhao, J.T.Matta, B.K.Nayak, D.Patel, R.V.F.Janssens, M.P.Carpenter, C.J.Chiara, F.G.Kondev, T.Lauritsen, D.Seweryniak, S.Zhu, S.S.Ghugre, R.Palit In-beam spectroscopy of medium- and high-spin states in 133Ce NUCLEAR REACTIONS 116Cd(22Ne, 5n), E=112 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ) using Gammasphere array at ATLAS-ANL facility, enriched target. 133Ce; deduced high-spin levels, J, π, multipolarity, dipole and quadrupole bands, alignments, configurations, rich diversity of collective phenomena. Comparisons with calculations based on cranked Nilsson-Strutinsky (CNS) model and tilted axis cranking covariant density functional theory (TAC-CDFT).
doi: 10.1103/PhysRevC.93.054317
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
2016KA10 Acta Phys.Pol. B47, 847 (2016) G.Kaur, B.R.Behera, A.Jhingan, B.K.Nayak, R.Dubey, P.Sharma, M.Thakur, R.Mahajan, N.Saneesh, T.Banerjee, Khushboo, A.Kumar, S.Mandal, A.Saxena, P.Sugathan, N.Rowley Measurement of Quasi-elastic Scattering: to Probe 28Si+154Sm Reaction NUCLEAR REACTIONS 154Sm(28Si, 28Si), E=118 MeV; measured reaction products; deduced quasi-elastic σ, experimental barrier distribution.
doi: 10.5506/APhysPolB.47.847
2016KA39 Phys.Rev. C 94, 034613 (2016) G.Kaur, B.R.Behera, A.Jhingan, B.K.Nayak, R.Dubey, P.Sharma, M.Thakur, R.Mahajan, N.Saneesh, T.Banerjee, Khushboo, A.Kumar, S.Mandal, A.Saxena, P.Sugathan, N.Rowley Effect of coupling in the 28Si + 154Sm reaction studied by quasi-elastic scattering NUCLEAR REACTIONS 154Sm(28Si, X), E=90.0-135.0 MeV; measured projectile-like fragments using ΔE-E hybrid telescope detector at IUAC 15UD Pelletron accelerator facility; deduced quasi-elastic σ(E) and corresponding barrier distribution, influence of couplings to excited states in 28Si projectile and in 154Sm target on fusion σ. Comparison with 154Sm(16O, X) data, and with coupled-channels predictions.
doi: 10.1103/PhysRevC.94.034613
2016KU16 Phys.Rev. C 94, 014603 (2016) A.Kundu, S.Santra, A.Pal, D.Chattopadhyay, B.K.Nayak, A.Saxena, S.Kailas Probing systematic model dependence of complete fusion for reactions with the weakly bound projectiles 6, 7Li NUCLEAR REACTIONS 64Ni, 90Zr, 144,152Sm, 159Tb, 197Au, 209Bi(6Li, X); 64Ni, 144,152Sm, 159Tb, 197Au, 209Bi(7Li, X), E(cm)=20-40 MeV; calculated complete fusion cross sections using coupled channels codes CCFULL and FRESCO; deduced fusion functions and compared with Universal Fusion Function (UFF); analyzed systematic differences between the two codes. Model dependence of enhancement or suppression of complete fusion. Compared with calculations for 148Sm(16O, X), E(cm)=55-75 MeV.
doi: 10.1103/PhysRevC.94.014603
2016PA07 Phys.Rev. C 93, 021602 (2016) B.Pandey, V.V.Desai, S.V.Suryanarayana, B.K.Nayak, A.Saxena, E.T.Mirgule, S.Santra, K.Mahata, R.Makawana, M.Abhangi, T.K.Basu, C.V.S.Rao, S.Jakhar, S.Vala, B.Sarkar, H.M.Agrawal, G.Kaur, P.M.Prajapati, A.Pal, D.Sarkar, A.Kundu Measurement of 55Fe (n, p) cross sections by the surrogate-reaction method for fusion technology applications NUCLEAR REACTIONS 52Cr(6Li, d)56Fe, 45Sc(6Li, α)47Ti, E=33.0, 35.75 MeV; measured spectra of protons, deuterons, tritons, α-particles, pd-coin. Natural Cr and Sc targets. 55Fe(n, p), E=7.9-20.1 MeV; deduced σ(E) via surrogate-reaction method, and compared with EAF-2010, TENDL-2014, and ROSFOND-2010 evaluated libraries and theoretical calculations using EMPIRE-3.2.3. Relevance to fusion technology.
doi: 10.1103/PhysRevC.93.021602
2016PE09 Phys.Rev. C 93, 064305 (2016) C.M.Petrache, S.Guo, A.D.Ayangeakaa, U.Garg, J.T.Matta, B.K.Nayak, D.Patel, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, D.Seweryniak, S.Zhu, S.S.Ghugre, R.Palit Triaxiality and exotic rotations at high spins in 134Ce NUCLEAR REACTIONS 116Cd(22Ne, 4n), E=112 MeV; Measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ) using Gammasphere array at ATLAS-ANL facility. 134Ce; deduced high-spin levels, J, π, multipolarity, SD and triaxial bands, triaxiality, alignments, configurations. Comparison with cranked Nilsson-Strutinsky (CNS) calculations.
doi: 10.1103/PhysRevC.93.064305
2016PE21 Phys.Rev. C 94, 064309 (2016) C.M.Petrache, Q.B.Chen, S.Guo, A.D.Ayangeakaa, U.Garg, J.T.Matta, B.K.Nayak, D.Patel, J.Meng, M.P.Carpenter, C.J.Chiara, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, D.Seweryniak, S.Zhu, S.S.Ghugre, R.Palit Triaxial-band structures, chirality, and magnetic rotation in 133La NUCLEAR REACTIONS 116Cd(22Ne, 4np), E=112 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ) ratios using Gammasphere array at ATLAS-ANL facility. 133La; deduced high-spin levels, J, π, multipolarities, bands, alignments, B(M1)/B(E2) ratios, configurations. Comparison with calculations using cranked Nilsson-Strutinsky (CNS) model, covariant density functional theory (CDFT) with a self-consistent relativistic mean field (RMF), and the particle rotor model (PRM).
doi: 10.1103/PhysRevC.94.064309
2016PR05 Pramana 86, 1269 (2016) P.M.Prajapati, B.Pandey, N.C.Gupta, S.Kumar, B.K.Nayak, A.Saxena, S.V.Suryanarayana, S.Jakhar, S.Vala, C.V.S.Rao, T.K.Basu Scattering chamber facility for double-differential cross-section measurement with 14 MeV DT neutron generator at IPR
doi: 10.1007/s12043-015-1176-4
2015DA13 Pramana 85, 379 (2015) L.S.Danu, D.C.Biswas, B.K.Nayak, R.K.Choudhury Fission fragment mass distributions via prompt γ-ray spectroscopy NUCLEAR REACTIONS 238U(18O, X), E=100 MeV; measured reaction products, Eγ, Iγ; deduced relative yield distribution of various fission fragments, fission fragment mass distributions. Comparison with available data.
doi: 10.1007/s12043-015-1052-2
2015DE21 Phys.Rev. C 92, 014609 (2015) V.V.Desai, B.K.Nayak, A.Saxena, S.V.Suryanarayana, R.Capote Prompt fission neutron spectra in fast-neutron-induced fission of 238U NUCLEAR REACTIONS 238U(n, F), E=2.0, 2.5, 3.0 MeV; measured prompt fission neutron spectra (PFNS), E(n), I(n) (fission fragments)n-coin, using time-of-flight technique; deduced neutron multiplicity and average prompt fission neutron energy using Watt parametrization. Comparison with evaluated spectra from ENDF/B-VII.1 library, other experimental data, and calculations using EMPIRE-3.2 code.
doi: 10.1103/PhysRevC.92.014609
2015PA11 Nucl.Sci.Eng. 179, 313 (2015) B.Pandey, P.M.Prajapati, S.Jakhar, C.V.S.Rao, T.K.Basu, B.K.Nayak, A.Saxena, S.V.Suryanarayana Estimate of (n, p) Cross Section for Radionuclide 55Fe Using EMPIRE and TALYS NUCLEAR REACTIONS 55Fe(n, p), E<20 MeV; calculated σ, Ep, Ip. Comparison with evaluated nuclear data libraries ROSFOND-2010, JEFF-3.1, EAF-2010 along with systematics around 14-MeV neutron energy.
doi: 10.13182/NSE14-26
2015PA26 Phys.Rev. C 91, 054614 (2015) D.Patel, S.Mukherjee, D.C.Biswas, B.K.Nayak, Y.K.Gupta, L.S.Danu, S.Santra, E.T.Mirgule Investigation of the threshold anomaly for the 7Li + 159Tb system NUCLEAR REACTIONS 159Tb(7Li, 7Li), E=24, 26, 28, 30, 35, 40, 44 MeV; measured elastically scattered 7Li spectra, σ(θ, E)(elastic)/σ(Rutherford) at BARC-TIFR Pelletron facility. Optical-model analysis using the Woods-Saxon potential. Comparison with Continuum-discretized coupled-channels calculations using FRESCO computer code with and without breakup couplings. Reduced reaction cross sections compared with previous experimental results of cross sections involving 7Li and 16O projectiles and different targets.
doi: 10.1103/PhysRevC.91.054614
2015PA27 Phys.Rev. C 91, 054618 (2015) A.Pal, S.Santra, B.K.Nayak, K.Mahata, V.V.Desai, D.Chattopadhyay, R.Tripathi Determination of 238Pu(n, f) and 236Np(n, f) cross sections using surrogate reactions NUCLEAR REACTIONS 232Th, 235U(6Li, dF), E=44.4 MeV; 235U(6Li, αF), E=44.4 MeV; measured E(d), I(d), (fission fragment)(light charged particles)-coin, coincident and inclusive spectra for α and deuterons at BARC-TIFR Pelletron accelerator facility. 238Pu(n, F), E<25 MeV; deduced σ(E) using surrogate ratio (SR) method. 236Np(n, F), E<25 MeV; deduced σ(E) using hybrid surrogate ratio (HSR) method. Comparison with calculations using EMPIRE-3.1 computer code, ENDF/B-VII.1 evaluation and previous experimental data.
doi: 10.1103/PhysRevC.91.054618
2015TR03 Phys.Rev. C 92, 024610 (2015) R.Tripathi, S.Sodaye, K.Sudarshan, B.K.Nayak, A.Jhingan, P.K.Pujari, K.Mahata, S.Santra, A.Saxena, E.T.Mirgule, R.G.Thomas Fission fragment mass distributions in 35Cl + 144, 154Sm reactions NUCLEAR REACTIONS 144,154Sm(35Cl, F), E=152.5, 156.1, 163.7 MeV; measured time-of-flight of the fission fragments and their mass distributions at BARC-TIFR Pelletron LINAC facility. Comparison with experimental data for 142Nd(40Ca, X) reaction. Fits of fragment mass distribution to Gaussian distribution. Relevance to asymmetric fission in A≈180 region.
doi: 10.1103/PhysRevC.92.024610
2014DA07 Phys.Rev. C 89, 044607 (2014) L.S.Danu, B.K.Nayak, E.T.Mirgule, R.K.Choudhury, U.Garg Role of neutron transfer on fusion barrier distributions of the 28, 30Si + 124Sn systems NUCLEAR REACTIONS 124Sn(28Si, X), (30Si, X), E=90-118 MeV; measured projectile-like fragment (PLF) spectra, σ(E)(quasielastic)/σ(E)(Rutherford) at 14-UD BARC-TIFR Pelletron accelerator facility; deduced quasielastic fusion barrier distributions. Comparison with coupled-channel (CC) calculations using CCFULL code for one neutron transfer channel, and a code available on NRV webpage for multi-neutron transfer channels. Sensitivity to deformation parameter β4 of the 28Si projectile from NRV calculations.
doi: 10.1103/PhysRevC.89.044607
2014DE03 Phys.Rev. C 89, 024606 (2014) V.V.Desai, B.K.Nayak, A.Saxena, E.T.Mirgule Determining 234Pa(n, f) cross sections using the surrogate method NUCLEAR REACTIONS 232Th(7Li, αF)235Pa, 232Th(7Li, tF)236U, E=39.5 MeV; measured spectra of projectile-like fragments (PLFs), and fission fragments, (PLFs)(fission fragments)-coin at BARC-TIFR Pelletron accelerator facility. 234Pa(n, F), E=8-14 MeV; deduced σ(E). Comparison with calculations using EMPIRE-3.1 code and RIPL-3 with fission barrier height from barrier formula (BF). Surrogate method.
doi: 10.1103/PhysRevC.89.024606
2014DU02 Phys.Rev. C 89, 014610 (2014) S.Dubey, S.Mukherjee, D.C.Biswas, B.K.Nayak, D.Patel, G.K.Prajapati, Y.K.Gupta, B.N.Joshi, L.S.Danu, S.Mukhopadhyay, B.V.John, V.V.Desai, S.V.Suryanarayana, R.P.Vind, N.N.Deshmukh, S.Appnnababu, P.M.Prajapati Effect of breakup processes on the near-barrier elastic scattering of the 6, 7Li + 232Th systems NUCLEAR REACTIONS 232Th(6Li, 6Li), (7Li, 7Li), E=24, 26, 30, 32, 35, 40, 44 MeV; measured scattered 6,7Li particle spectra, σ(E, θ), total fusion and reaction σ(E) using ΔE-E telescopes at BARC-TIFR pelletron accelerator facility; analyzed data by optical potential model ECIS code with Woods-Saxon and Sao Paulo potentials. Indication of breakup threshold anomaly for 6Li scattering. Discussed role of projectile breakup on reaction mechanism.
doi: 10.1103/PhysRevC.89.014610
2014PA27 Phys.Rev. C 89, 064614 (2014) D.Patel, S.Mukherjee, B.K.Nayak, S.V.Suryanarayana, D.C.Biswas, E.T.Mirgule, Y.K.Gupta, L.S.Danu, B.V.John, A.Saxena Fusion barrier distributions in 6, 7Li + 209Bi reactions from quasi-elastic and fusion excitation function measurements NUCLEAR REACTIONS 209Bi(6Li, X), (7Li, X), E=22.0-39.0 MeV; measured particle spectra, quasi-elastic σ(E), α cross sections versus incident energy at 14UD BARC-TIFR Pelletron facility; deduced fusion barrier distributions, transmission or capture probability as a function of incident energy; calculated total reaction σ(E), integrated breakup σ(E), breakup σ(E), and fusion distributions by continuum-discretized coupled-channel (CDCC) theory using FRESCO code.
doi: 10.1103/PhysRevC.89.064614
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, 7Li + 235, 238U 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
2014SA71 Phys.Rev. C 90, 064620 (2014) S.Santra, A.Pal, P.K.Rath, B.K.Nayak, N.L.Singh, D.Chattopadhyay, B.R.Behera, V.Singh, A.Jhingan, P.Sugathan, K.S.Golda, S.Sodaye, S.Appannababu, E.Prasad, S.Kailas Effect of projectile breakup on fission-fragment mass distributions in the 6, 7Li + 238U reactions NUCLEAR REACTIONS 238U(6Li, F), E=30, 34, 39, 45, 50 MeV; 238U(7Li, F), E=31.4, 35.4, 40.4, 41.4, 45, 51.4 MeV; measured fission fragment spectra, time-of-flight, fission-fragment folding angle distributions at IUAC-New Delhi Pelletron facility; deduced yield of fission fragments as a function of fragment mass, fission-fragment mass distribution, peak to valley (P:V) ratio of fission fragment mass distribution, mass distributions for complete fusion (CF) and total fusion (TF) events. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.90.064620
2013AY04 Phys.Rev.Lett. 110, 172504 (2013) A.D.Ayangeakaa, U.Garg, M.D.Anthony, S.Frauendorf, J.T.Matta, B.K.Nayak, D.Patel, Q.B.Chen, S.Q.Zhang, P.W.Zhao, B.Qi, J.Meng, R.V.F.Janssens, M.P.Carpenter, C.J.Chiara, F.G.Kondev, T.Lauritsen, D.Seweryniak, S.Zhu, S.S.Ghugre, R.Palit Evidence for Multiple Chiral Doublet Bands in 133Ce NUCLEAR REACTIONS 116Cd(22Ne, 5n)133Ce, E=112 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced high-spin states energies, J, π, two distinct sets of criral-partner bands. Comparison with available data, relativistic mean field calculations.
doi: 10.1103/PhysRevLett.110.172504
2013DE09 Phys.Rev. C 87, 034604 (2013) V.V.Desai, B.K.Nayak, A.Saxena, D.C.Biswas, E.T.Mirgule, B.John, S.Santra, Y.K.Gupta, L.S.Danu, G.K.Prajapati, B.N.Joshi, S.Mukhopadhyay, S.Kailas, P.K.Pujari, A.Kumar, D.Patel, S.Mukherjee, P.M.Prajapati Determination of 241Pu(n, f) cross sections by the surrogate-ratio method NUCLEAR REACTIONS 238U(6Li, d), E=39.6 MeV; 232Th(6Li, d), E=39.0 MeV; measured proton, deuteron, triton, α, projectile-like fragment (PLF), and fission fragment spectra, energy loss at BARC-TIFR facility; deduced σ. 241Pu(n, F), E=16-20 MeV; deduced σ(E) using surrogate ratio method (SRM). Comparison with previous studies, and calculations using EMPIRE 3.1 code for fission barrier libraries RIPL-1 and RIPL-3, and the barrier formula (BF). Best-fit σ(E) deduced for E(n)=2-20 MeV.
doi: 10.1103/PhysRevC.87.034604
2013DE24 Phys.Rev. C 88, 014613 (2013) V.V.Desai, B.K.Nayak, A.Saxena, E.T.Mirgule, S.V.Suryanarayana Determination of the 239Np (n, f) and 240Np (n, f) cross sections using the surrogate reaction method NUCLEAR REACTIONS 238U(6Li, αF), (6Li, dF), E=39.6 MeV; 238U (7Li, αF), (7Li, tF), E=41.0 MeV; measured deuteron, triton and α spectra with without coincidence with fission fragments at BARC-TIFR facility. 239,240Np(n, F), E=1-20 MeV; deduced σ(E) by hybrid surrogate ratio method, and using σ for 241Pu(n, F) as reference. Comparisons with previous experimental data, with calculations using EMPIRE-3.1 code, and with JENDL-4.0 evaluated data.
doi: 10.1103/PhysRevC.88.014613
2013IT04 Phys.Rev. C 88, 064313 (2013) M.Itoh, S.Kishi, H.Sakaguchi, H.Akimune, M.Fujiwara, U.Garg, K.Hara, H.Hashimoto, J.Hoffman, T.Kawabata, K.Kawase, T.Murakami, K.Nakanishi, B.K.Nayak, S.Terashima, M.Uchida, Y.Yasuda, M.Yosoi Isoscalar giant resonance strengths 32S and possible excitation of superdeformed and 28Si + α cluster bandheads NUCLEAR REACTIONS 32S(α, α'), E=386 MeV; measured Eα, Iα, σ(θ), isoscalar giant resonance strengths using Grand Raiden spectrometer at RCNP, Osaka cyclotron facility. 32S; deduced levels, J, π, L-transfers, E0, E1, E2, E3, E4 strengths, superdeformed bandheads, parity-doublet 28S+α cluster bands. Comparison with the assumption of point masses for 16O+16O and 28Si+α cluster structures. Multipole decomposition analysis (MDA) and DWBA analysis.
doi: 10.1103/PhysRevC.88.064313
2013PA34 Pramana 81, 587 (2013) D.Patel, S.Santra, S.Mukherjee, B.K.Nayak, P.K.Rath, V.V.Parkar, R.K.Choudhury Elastic scattering and fusion cross-sections in 7Li + 27Al reaction NUCLEAR REACTIONS 27Al(7Li, 7Li), (7Li, X)30Si/29Si/28Si/26Mg/29Al, E=8-16 MeV; measured reaction products, Eα, Iα; deduced σ, σ(θ, E). Comparison with coupled-channels and transfer calculations using FRESCO.
doi: 10.1007/s12043-013-0597-1
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, 152Sm 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,154,155,156Tb 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
2012BI15 J.Phys.:Conf.Ser. 381, 012091 (2012) D.C.Biswas, P.Roy, Y.K.Gupta, B.N.Joshi, B.K.Nayak, L.S .Danu, B.V.John, R.P.Vind, N.Deshmukh, S.Mukherjee, A.K.Jain, R.K.Choudhury Projectile structure effects in multi-nucleon and cluster transfers in 16, 18O+164Dy, 208Pb reactions NUCLEAR REACTIONS 164Dy, 208Pb(16O, X), (18O, X), E=90, 96 MeV; measured reaction fragments using ΔE-E Si telescopes inside scattering chamber; deduced projectile-like fragments σ(θ).
doi: 10.1088/1742-6596/381/1/012091
2012FR05 Phys.Rev. C 86, 034320 (2012) M.Freer, M.Itoh, T.Kawabata, H.Fujita, H.Akimune, Z.Buthelezi, J.Carter, R.W.Fearick, S.V.Fortsch, M.Fujiwara, U.Garg, N.Hashimoto, K.Kawase, S.Kishi, T.Murakami, K.Nakanishi, Y.Nakatsugawa, B.K.Nayak, R.Neveling, S.Okumura, S.M.Perez, P.Papka, H.Sakaguchi, Y.Sasamoto, F.D.Smit, J.A.Swartz, H.Takeda, S.Terashima, M.Uchida, I.Usman, Y.Yasuda, M.Yosoi, J.Zenihiro Consistent analysis of the 2+ excitation of the 12C Hoyle state populated in proton and α-particle inelastic scattering NUCLEAR REACTIONS 12C(p, p'), E=66 MeV; 12C(α, α'), E=386 MeV; measured 12C excitation spectra. 12C; deduced levels, 2+ excitation of the 0+ Hoyle state. R-matrix analysis. Discussed potential geometric arrangements of the cluster structures.
doi: 10.1103/PhysRevC.86.034320
2012GU15 Phys.Rev. C 86, 014615 (2012) Y.K.Gupta, D.C.Biswas, B.John, B.K.Nayak, A.Chatterjee, R.K.Choudhury Enhanced α-particle emission in 12C+232Th fission due to the transfer-breakup process NUCLEAR REACTIONS 232Th(12C, X), E=69 MeV; measured Eα, α( fission fragment)-coin, α(θ), α-particle multiplicity spectra, 2α-particle spectra from 8Be breakup; deduced prefission and postfission components of a-particle emission from fits of spectra with moving-source model.
doi: 10.1103/PhysRevC.86.014615
2012PA38 Phys.Lett. B 718, 447 (2012) D.Patel, U.Garg, M.Fujiwara, H.Akimune, G.P.A.Berg, M.N.Harakeh, M.Itoh, T.Kawabata, K.Kawase, B.K.Nayak, T.Ohta, H.Ouchi, J.Piekarewicz, M.Uchida, H.P.Yoshida, M.Yosoi Giant monopole resonance in even-A Cd isotopes, the asymmetry term in nuclear incompressibility, and the "softness" of Sn and Cd nuclei NUCLEAR REACTIONS 106,110,112,114,116Cd(α, α'), E=100 MeV/nucleon; measured reaction products, Eα, Iα; deduced the isoscalar giant monopole resonance (ISGMR) strength distributions, moment ratios. Comparison with theoretical calculations.
doi: 10.1016/j.physletb.2012.10.056
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 154Tbm1,154Tbm2, 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
2011AP01 Phys.Rev. C 83, 034605 (2011) S.Appannababu, S.Mukherjee, B.K.Nayak, R.G.Thomas, P.Sugathan, A.Jhingan, E.Prasad, D.Negi, N.N.Deshmukh, P.K.Rath, N.L.Singh, R.K.Choudhury Fission fragment mass distributions in reactions forming the 213Fr compound nucleus NUCLEAR REACTIONS 186W(27Al, X), E=123-140 MeV; 197Au(16O, X), E=79-100 MeV; measured fission fragment spectra; deduced density plots for mass ratio vs center of mass angle, mass ratio distributions 213Fr; deduced mass variance. Comparison with theoretical calculations.
doi: 10.1103/PhysRevC.83.034605
2011AP02 Phys.Rev. C 83, 067601 (2011); Pub Note Phys.Rev. C 83, 069902 (2011) S.Appannababu, R.G.Thomas, L.S.Danu, P.K.Rath, Y.K.Gupta, B.V.John, B.K.Nayak, D.C.Biswas, A.Saxena, S.Mukherjee, R.K.Choudhury Fission fragment angular distributions in the 9Be + 232Th reaction NUCLEAR REACTIONS 232Th(9Be, X), E=39, 41, 44, 50 MeV; measured fission fragment spectra, σ(E, θ). Comparison with standard statistical saddle-point model (SSPM), and the preequilibrium fission (PEQ) model. Comparison of fission anisotropies for projectiles of 7Li, 9Be, 11B, 12C, 16O and 19F on 232Th target.
doi: 10.1103/PhysRevC.83.067601
2011DE05 Phys.Rev. C 83, 024607 (2011) N.N.Deshmukh, S.Mukherjee, D.Patel, N.L.Singh, P.K.Rath, B.K.Nayak, D.C.Biswas, S.Santra, E.T.Mirgule, L.S.Danu, Y.K.Gupta, A.Saxena, R.K.Choudhury, R.Kumar, J.Lubian, C.C.Lopes, E.N.Cardozo, P.R.S.Gomes Breakup threshold anomaly in the near-barrier elastic scattering of 6Li + 116, 112Sn NUCLEAR REACTIONS 112Sn(6Li, 6Li), (6Li, X), E=21, 23, 25, 35 MeV; 116Sn(6Li, 6Li), (6Li, X), E=20, 21, 22, 23, 26, 30, 35 MeV; measured 6Li spectra by E-ΔE method; deduced elastic scattering σ and total reaction σ. Optical model analysis with phenomenological Woods-Saxon potential. Comparison of reduced cross sections with reaction cross sections for several other systems. Presence of the breakup threshold anomaly.
doi: 10.1103/PhysRevC.83.024607
2011DE29 Eur.Phys.J. A 47, 118 (2011) N.N.Deshmukh, S.Mukherjee, B.K.Nayak, D.C.Biswas, S.Santra, E.T.Mirgule, S.Appannababu, D.Patel, A.Saxena, R.K.Choudhury, J.Lubian, P.R.S.Gomes Investigation of the threshold anomaly in the near-barrier elastic scattering of 7Li on 116Sn NUCLEAR REACTIONS 116Sn(7Li, 7Li), E=18, 19, 20, 21, 22, 23, 24, 26, 30, 35 MeV; measured E(particle), I(particle, θ); calculated σ, σ(θ); deduced σ, σ(θ), optical potential parameters.
doi: 10.1140/epja/i2011-11118-0
Back to query form [Next] |