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NSR database version of April 11, 2024.

Search: Author = J.Sadhukhan

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2023SE16      Eur.Phys.J. A 59, 220 (2023)

M.T.Senthil Kannan, N.Ashok, S.S.Nayak, J.Sadhukhan, G.Mukherjee

Shape evolution of sub-lead neutron-rich nuclei around the neutron shell closure

NUCLEAR STRUCTURE 184,186,188,190,192,194,196,198,200,202,204,206,208,210,212W, 186,188,190,192,194,196,198,200,202,204,206,208,210,212,214Os, 188,190,192,194,196,198,200,202,204,206,208,210,212,214,216Pt; calculated potential energy surfaces as a function of quadrupole moments, rms radii, pairing gaps, two-neutron separation energies, B(E2) using the state-of-the-art energy density functional framework .

doi: 10.1140/epja/s10050-023-01127-z
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2022FL03      Phys.Rev. C 105, 054302 (2022)

E.Flynn, D.Lay, S.Agbemava, P.Giuliani, K.Godbey, W.Nazarewicz, J.Sadhukhan

Nudged elastic band approach to nuclear fission pathways

RADIOACTIVITY 240Pu, 235U(SF); calculated potential energy surfaces in (Q20, Q30) coordinates, action integrals, fission paths. Nudged elastic band method (NEB), grid-based methods, and the Euler-Lagrange approach.

doi: 10.1103/PhysRevC.105.054302
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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
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2022RO13      Phys.Rev. C 106, 034303 (2022)

S.K.Roy, C.Sen, S.Mukhopadhyay, J.Sadhukhan

Finite-temperature calculation of the isovector giant dipole resonance in 120Sn using self-consistent inputs

NUCLEAR STRUCTURE 120Sn; calculated free energy and energy entropy surfaces in (β, γ) planes, isovector giant dipole resonance (IVGDR) strength function, total IVGDR width, and temperature dependence of average pairing gaps using improved version of thermal shape-fluctuation model (TSFM), with driving potential and IVGDR centroid energies obtained from Skyrme nuclear energy density functional parametrization. Comparison with results from phonon damping model (PDM).

doi: 10.1103/PhysRevC.106.034303
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2022SA04      Phys.Rev. C 105, 014619 (2022)

J.Sadhukhan, S.A.Giuliani, W.Nazarewicz

Theoretical description of fission yields: Toward a fast and efficient global model

NUCLEAR REACTIONS 235U, 239Pu, 251Cf, 255Fm(n, F), E=thermal; calculated mass and charge fission fragment distributions, total neutron multiplicities, secondary (post-neutron emission) mass and charge fission fragment distributions, charge polarization of heavy fragments in 235U(n, F); predicted odd-even staggering (OES) in charge yields and for neutron evaporation. Microscopic-statistical model of fission fragment distribution with fission trajectories from the density functional theory framework.Comparison with experimental data.

RADIOACTIVITY 254Pu, 252Cf, 254,256,264,290Fm, 294Og(SF); calculated total neutron multiplicities for fission of 252Cf and 254Fm, nucleon localization functions for neutrons and protons at the prescission configuration for fission of 264Fm, secondary (post-neutron emission) mass and charge fission fragment distributions for 252Cf, 254Fm and 256Fm, fragment charge distributions for 245Pu, 290Fm and 294Og. predicted odd-even staggering (OES) in charge yields and for neutron evaporation. Microscopic-statistical model of fission fragment distribution with fission trajectories from the density functional theory framework. Comparison with available experimental data.

doi: 10.1103/PhysRevC.105.014619
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2022SH23      Phys.Lett. B 831, 137145 (2022)

R.Shil, K.Banerjee, P.Roy, J.Sadhukhan, T.K.Rana, G.Mukherjee, S.Kundu, T.K.Ghosh, S.Manna, A.Sen, R.Pandey, A.Chakraborty, D.Pandit, S.Mukhopadhyay, D.Mondal, D.Paul, C.Bhattacharya, S.Bhattacharya

Isospin dependence of nuclear level density at A ≈ 120 mass region

NUCLEAR REACTIONS 112,116,124Sn(α, n)115Te/119Te/127Te, E=26-44 MeV; measured reaction products, En, In; deduced neutron σ(θ, E), evaporation channels, σ(θ), nuclear level density. Comparison with the statistical model calculation including the isospin dependent and independent prescriptions of level density parameter.

doi: 10.1016/j.physletb.2022.137145
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2021BA41      Phys.Lett. B 820, 136601 (2021)

K.Banerjee, D.J.Hinde, M.Dasgupta, J.Sadhukhan, E.C.Simpson, D.Y.Jeung, C.Simenel, B.M.A.Swinton-Bland, E.Williams, L.T.Bezzina, I.P.Carter, K.J.Cook, H.M.Albers, Ch.E.Dullmann, J.Khuyagbaatar, B.Kindler, B.Lommel, C.Mokry, E.Prasad, J.Runke, N.Schunck, C.Sengupta, J.F.Smith, P.Thorle-Pospiech, N.Trautmann, K.Vo-Phuoc, J.Walshe, A.Yakushev

Sensitive search for near-symmetric and super-asymmetric fusion-fission of the superheavy element Flerovium (Z=114)

NUCLEAR REACTIONS 208Pb, 244Pu(48Ca, X), 232Th(54Cr, X)Fl, E not given; analyzed available data; deduced masses, σ(θ). Comparison with microscopic calculations of Helmholtz free energy surfaces (FES).

doi: 10.1016/j.physletb.2021.136601
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2021KU08      Phys.Lett. B 814, 136062 (2021)

N.Kumar, S.Verma, S.Mohsina, J.Sadhukhan, K.Rojeeta Devi, A.Banerjee, N.Saneesh, M.Kumar, R.Mahajan, M.Thakur, G.Kaur, A.Rani, Neelam, A.Yadav, Kavita, R.Kumar, Unnati, S.Mandal, S.Kumar, B.R.Behera, K.S.Golda, A.Jhingan, P.Sugathan

Probing entrance channel effects in fusion-fission dynamics through neutron multiplicity measurement of 208Rn

NUCLEAR REACTIONS 178Hf(30Si, X), 160Gd(48Ti, X)208Rn, E=54-80 MeV; measured fission products, En, In; calculated potential energy surface; deduced double differential neutron multiplicities. Comparison with available data.

doi: 10.1016/j.physletb.2021.136062
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2021MU08      Phys.Rev. C 104, L031304 (2021)

S.Mukhopadhyay, P.Roy, D.Mondal, D.Pandit, S.Pal, B.Dey, S.Bhattacharya, A.De, T.K.Rana, S.Kundu, J.Sadhukhan, C.Bhattacharya, S.R.Banerjee

No signature of the saturation of giant dipole resonance width in medium-mass nuclei

NUCLEAR REACTIONS 58Ni(16O, X)74Kr*, E=116, 140, 160 MeV; measured high-energy Eγ, Iγ, γγ-coin, E(n), I(n) using LAMBDA photon spectrometer with 49 large BaF2 detectors, a 50-element low energy γ-multiplicity filter array, and two liquid-scintillator-based neutron detectors at the K130 Cyclotron facility of VECC-Kolkata. 74Kr; deduced time-of-flight (TOF) spectra, angular momentum gated neutron spectra, energies and widths of giant-dipole resonances at the three incident energies. Comparison with statistical model CASCADE calculations, and other theoretical models. Systematics of GDR width with temperature for 74Kr, 76Kr, 88Mo, 86Mo, 92Mo and 100Mo.

doi: 10.1103/PhysRevC.104.L031304
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2020BE28      J.Phys.(London) G47, 113002 (2020)

M.Bender, R.Bernard, G.Bertsch, S.Chiba, J.Dobaczewski, N.Dubray, S.A.Giuliani, K.Hagino, D.Lacroix, Z.Li, P.Magierski, J.Maruhn, W.Nazarewicz, J.Pei, S.Peru, N.Pillet, J.Randrup, D.Regnier, P.G.Reinhard, L.M.Robledo, W.Ryssens, J.Sadhukhan, G.Scamps, N.Schunck, C.Simenel, J.Skalski, I.Stetcu, P.Stevenson, S.Umar, M.Verriere, D.Vretenar, M.Warda, S.Aberg

Future of nuclear fission theory

doi: 10.1088/1361-6471/abab4f
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2020MO17      Phys.Rev. C 101, 044607 (2020)

S.Mohsina, J.Sadhukhan

Systematic study of the nuclear capture process using a four-dimensional Langevin dynamical model

NUCLEAR REACTIONS 208Pb(16O, X), E(cm)=80-130 MeV; 208Pb(48Ca, X), E(cm)=188-300 MeV; (50Ti, X), E(cm)=200-320 MeV; calculated capture σ(E), and capture yield distributions using four-dimensional Langevin dynamical framework, with the driving potential from double-folding procedure, and the dissipative forces from surface friction model. Comparison with experimental data.

doi: 10.1103/PhysRevC.101.044607
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2020RO22      Phys.Rev. C 102, 061601 (2020)

P.Roy, K.Banerjee, T.K.Rana, S.Kundu, S.Manna, A.Sen, D.Mondal, J.Sadhukhan, M.T.Senthil Kannan, T.K.Ghosh, S.Mukhopadhyay, D.Pandit, G.Mukherjee, S.Pal, D.Paul, K.Atreya, C.Bhattacharya

Evidence for the reduction of nuclear level density away from the β-stability line

NUCLEAR REACTIONS 115In(p, X)116Sn*, E=9, 12 MeV; 112Sn(α, X)116Te*, E=28 MeV; measured En, In, angular distribution of neutrons, prompt γ radiation, Eγ, Iγ, double-differential σ(E) using the time-of-flight (TOF) technique for neutrons, and a 50-element BaF2 detector array for γ rays at the K130 cyclotron facility of VECC-Kolkata; deduced reduction of nuclear level density away from the β-stability line. Comparison with Hauser-Feshbach theoretical predictions using TALYS code with nuclear level density parameters from Gilbert-Cameron (GC), backshifted Fermi gas (BSFG), and generalized superfluid model (GSM). Prediction of level-density parameter compared with microscopic shell-model calculation with Woods-Saxon mean field.

doi: 10.1103/PhysRevC.102.061601
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2020SA24      Phys.Rev. C 101, 065803 (2020)

J.Sadhukhan, S.A.Giuliani, Z.Matheson, W.Nazarewicz

Efficient method for estimation of fission fragment yields of r-proc ss nuclei

NUCLEAR STRUCTURE 178Pt, 240Pu, 254Cf, 254,256,258Fm; calculated nucleonic localization function (NLF) contours, potential energy surfaces (PES) in (Q20, Q30) planes, prefragments for different fissioning systems, fission fragment mass and charge yield distribution for spontaneous fission (SF) of 240Pu, 254Cf, 254,256,258Fm, thermal neutron-induced for 240Pu, 256Fm, and heavy-ion induced fission of 178Pt. 294Og; calculated fission fragment mass and charge yields. 254Pu, 290Fm; predicted fission properties of r-process nuclei. Skyrme density functional theory (DFT) with SkM* and UNEDF1HFB models. Comparison with available experimental data.

doi: 10.1103/PhysRevC.101.065803
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2019GI06      Rev.Mod.Phys. 91, 011001 (2019)

S.A.Giuliani, Z.Matheson, W.Nazarewicz, E.Olsen, P.-G.Reinhard, J.Sadhukhan, B.Schuetrumpf, N.Schunck, P.Schwerdtfeger

Colloquium: Superheavy elements: Oganesson and beyond

doi: 10.1103/RevModPhys.91.011001
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2019KU10      Phys.Rev. C 99, 041602 (2019)

N.Kumar, D.C.Biswas, T.K.Ghosh, J.Sadhukhan, B.N.Joshi, Y.K.Gupta, R.P.Vind, G.K.Prajapati, S.Dubey, L.S.Danu, S.Mukhopadhyay, K.Mahata, B.V.John, S.Sodaye

Role of quasifission in fission fragment mass distributions for the 28Si + 197Au reaction

NUCLEAR REACTIONS 197Au(28Si, X), E=135.4-180.0 MeV; measured yields mass distribution and time correlation of fission fragments, distribution of ratio of parallel components as a function of mass ratio, variance of fission fragment mass distribution as a function of beam energy using two position-sensitive multiwire proportional counters (MWPCs) at Pelletron-LINAC facility of TIFR, Mumbai. Comparison with dynamical and statistical model calculations. 225Np; calculated potential energy surface (PES). Discussed role of quasifission process in fission fragment mass distribution.

doi: 10.1103/PhysRevC.99.041602
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2019MA27      Phys.Rev. C 99, 041304 (2019)

Z.Matheson, S.A.Giuliani, W.Nazarewicz, J.Sadhukhan, N.Schunck

Cluster radioactivity of 294118Og176

RADIOACTIVITY 294Og(SF); calculated potential energy surfaces (PES) for 294Og in (Q20, Q30) collective plane, fission fragment distribution, heavy fragment mass and charge yields, collective inertias, dissipation strengths, and nucleon localization function using microscopic energy density functional theory, incorporating fission dynamics, quantum tunneling and stochastic dynamics up to scission. Relevance to search for cluster radioactivity of 294Og.

doi: 10.1103/PhysRevC.99.041304
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6366.


2019RA30      Phys.Rev. C 100, 044611 (2019)

K.K.Rajesh, M.M.Musthafa, N.Madhavan, S.Nath, J.Gehlot, J.Sadhukhan, P.Mohamed Aslam, P.T.Muhammed shan, E.Prasad, M.M.Hosamani, T.Varughese, A.Yadav, V.R.Sharma, V.Srivastava, Md.M.Shaikh, M.Shareef, A.Shamlath, P.V.Laveen

Measurement of fusion evaporation residue cross sections in the 48Ti 138Ba reaction

NUCLEAR REACTIONS 138Ba(48Ti, X)186Pt*, E=189.3, 195.5, 201.7, 208.9, 215.7, 224.0, 234.4 MeV; measured evaporation residues (ERs), angular distributions and total σ(E) for ERs using hybrid recoil mass analyzer (HYRA) at the Pelletron+LINAC facility of IUAC-New Delhi; deduced evidence of entrance channel effect with increasing values of charge product, and no profound effect of target shell closure. Comparison of data from this experiment and for previous 154Sm(32S, X) reaction to dynamical model calculations with one-dimensional Langevin equations using CCFULL code.

doi: 10.1103/PhysRevC.100.044611
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6373.


2019SH10      Phys.Rev. C 99, 024618 (2019)

M.Shareef, E.Prasad, A.Jhingan, N.Saneesh, K.S.Golda, A.M.Vinodkumar, M.Kumar, A.Shamlath, P.V.Laveen, A.C.Visakh, M.M.Hosamani, S.K.Duggi, P.Sandya Devi, G.N.Jyothi, A.Tejaswi, P.N.Patil, J.Sadhukhan, P.Sugathan, A.Chatterjee, S.Pal

Nuclear dissipation at high excitation energy and angular momenta in reaction forming 227Np

NUCLEAR REACTIONS 197Au(30Si, X)227Np*, E=152.3, 159.4, 166.4, 173.4, 179.4, 186.4, 192.4 MeV or E*=44-79 MeV; measured reaction products, time correlation spectra of complementary fragments, E(n), I(n), double differential neutron multiplicity spectra, neutron angular distributions, fragment and neutron time of flight using the National Array of Neutron Detector (NAND) array for neutron detection and two multiwire proportional counters for fragment detection at the 15 UD Pelletron accelerator facility of IUAC-New Delhi; deduced neutron multiplicity, pre-, post-and total scission neutron multiplicity and temperature, and total neutron multiplicity. Comparison with statistical model calculations.

doi: 10.1103/PhysRevC.99.024618
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2019TS02      Phys.Lett. B 790, 583 (2019)

I.Tsekhanovich, A.N.Andreyev, K.Nishio, D.Denis-Petit, K.Hirose, H.Makii, Z.Matheson, K.Morimoto, K.Morita, W.Nazarewicz, R.Orlandi, J.Sadhukhan, T.Tanaka, M.Vermeulen, M.Warda

Observation of the competing fission modes in 178Pt

NUCLEAR REACTIONS 142Nd(36Ar, X)178Pt, E=155, 170, 180 MeV; measured reaction products; deduced fission fragment yields, first observation of a multimodal fission in the sub-lead region.

doi: 10.1016/j.physletb.2019.02.006
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2018SE14      Phys.Rev. C 98, 021601 (2018)

M.T.Senthil Kannan, J.Sadhukhan, B.K.Agrawal, M.Balasubramaniam, S.Pal

Dynamical model calculation to reconcile the nuclear fission lifetime from different measurement techniques

NUCLEAR REACTIONS 208Pb(16O, F)224Th*, E*=37, 97, 187 MeV; 238U(p, F)239Np*, E*=0-200 MeV; 232Th(α, F)236U*, E*=0-200 MeV; 181Ta(19F, F)200Pb*, E*=0-200 MeV; calculated average fission lifetime, average neutron-evaporation time, last neutron-evaporation time, prescission neutron multiplicity of excited compound nucleus. 238U(64Ni, F)302120*, E*=10-80 MeV; calculated average fission lifetime as a function of excitation energy. State-of-the-art model based on the stochastic Langevin equation to investigate full dynamical evolution of an excited compound system from the ground-state configuration up to scission. Comparison with available experimental data.

doi: 10.1103/PhysRevC.98.021601
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2017BA35      Phys.Lett. B 772, 105 (2017)

K.Banerjee, P.Roy, D.Pandit, J.Sadhukhan, S.Bhattacharya, C.Bhattacharya, G.Mukherjee, T.K.Ghosh, S.Kundu, A.Sen, T.K.Rana, S.Manna, R.Pandey, T.Roy, A.Dhal, Md.A.Asgar, S.Mukhopadhyay

Direct evidence of fadeout of collective enhancement in nuclear level density

NUCLEAR REACTIONS 169Tm, 181Ta, 197Au(α, X), E=26, 30, 35, 40 MeV; measured reaction products. 173Lu, 185Re, 201Tl; deduced the phenomenon of collective enhancement in nuclear level density and its fadeout using neutron evaporation study. Comparison with calculations based on finite temperature density functional theory.

doi: 10.1016/j.physletb.2017.06.033
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2017KU20      Phys.Rev. C 96, 034614 (2017)

N.Kumar, S.Mohsina, J.Sadhukhan, S.Verma

Role of dynamical deformation in pre-scission neutron multiplicity

NUCLEAR REACTIONS 208Pb(16O, X)224Th*, E(cm)=80-140 MeV; calculated pre-scission neutron multiplicities with and without deformation dependence. 224Th; calculated contours of Γn as a function of excitation energy and deformation. 232Th(19F, X)251Es*, 224Rn(27Al, X)251Es*, 211Tl(40Ar, X)251Es*, E*=50-100 MeV; calculated pre-scission particle multiplicities with and without deformation dependence. 154Sm, 184W, 197Au, 208Pb, 238U(16O, X), E*=187.3-205.8 MeV; calculated pre-scission neutron multiplicities, saddle to scission neutron multiplicities. Role of nuclear deformation in determining neutron decay width. Langevin dynamical model for fission. Comparison with experimental data.

doi: 10.1103/PhysRevC.96.034614
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2017SA73      Phys.Rev. C 96, 061301 (2017)

J.Sadhukhan, C.Zhang, W.Nazarewicz, N.Schunck

Formation and distribution of fragments in the spontaneous fission of 240Pu

RADIOACTIVITY 240Pu(SF); calculated density of Langevin trajectories and corresponding effective fission paths (EFPs), neutron and proton localization functions (NLFs), partial mass distributions for different initial configurations, average collective momentum of Langevin trajectories for different EFPs. Stochastic Langevin framework for analysis of the formation and distribution of spontaneous fission yields.

doi: 10.1103/PhysRevC.96.061301
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2016CH34      Phys.Rev. C 94, 024617 (2016)

A.Chaudhuri, A.Sen, T.K.Ghosh, K.Banerjee, J.Sadhukhan, S.Bhattacharya, P.Roy, T.Roy, C.Bhattacharya, Md.A.Asgar, A.Dey, S.Kundu, S.Manna, J.K.Meena, G.Mukherjee, R.Pandey, T.K.Rana, V.Srivastava, R.Dubey, G.Kaur, N.Saneesh, P.Sugathan, P.Bhattacharya

Fission fragment mass distributions in reactions populating 200Pb

NUCLEAR REACTIONS 184W(16O, X)200Pb*, E*=58.6, 64.1, 69.6, 75.2 MeV; 181Ta(19F, X)200Pb*, E*=59.6, 65.0, 70.4, 75.9 MeV; measured mass distributions of fission fragments as function of excitation energy, and mass angle distributions using sensitive multiwire proportional counters (MWPCs) and pulsed beams at 15UD Pelletron accelerator facility of IUAC-New Delhi; deduced no evidence for quasifission.

doi: 10.1103/PhysRevC.94.024617
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2016SA03      Phys.Rev. C 93, 011304 (2016)

J.Sadhukhan, W.Nazarewicz, N.Schunck

Microscopic modeling of mass and charge distributions in the spontaneous fission of 240Pu

RADIOACTIVITY 240Pu(SF); calculated static and dynamic SF paths on the potential energy contours, variation of pairing gap for neutrons and protons, mass and charge distributions of SF yields by solving time-dependent dissipative Langevin equations. Microscopic model based on nuclear density functional theory (DFT). Comparison with experimental data.

doi: 10.1103/PhysRevC.93.011304
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2015CH26      Phys.Rev. C 91, 044620 (2015)

A.Chaudhuri, T.K.Ghosh, K.Banerjee, S.Bhattacharya, J.Sadhukhan, C.Bhattacharya, S.Kundu, J.K.Meena, G.Mukherjee, R.Pandey, T.K.Rana, P.Roy, T.Roy, V.Srivastava, P.Bhattacharya

Direct evidence of "washing out"' of nuclear shell effects

NUCLEAR REACTIONS 232Th(α, F), E=7.7, 25-65 MeV; measured fission fragments, fission σ(E), distributions of folding angles of the fissioning nuclei, fission fragment mass distributions as function of excitation energies at VECC, Kolkata facility; deduced width of fitted symmetric mass distribution, evidence for weakening of shell effect with increase in excitation energy.

doi: 10.1103/PhysRevC.91.044620
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6285.


2015CH55      Phys.Rev. C 92, 041601 (2015)

A.Chaudhuri, T.K.Ghosh, K.Banerjee, S.Bhattacharya, J.Sadhukhan, S.Kundu, C.Bhattacharya, J.K.Meena, G.Mukherjee, A.K.Saha, Md.A.Asgar, A.Dey, S.Manna, R.Pandey, T.K.Rana, P.Roy, T.Roy, V.Srivastava, P.Bhattacharya, D.C.Biswas, B.N.Joshi, K.Mahata, A.Shrivastava, R.P.Vind, S.Pal, B.R.Behera, V.Singh

No influence of a N=126 neutron-shell closure in fission-fragment mass distributions

NUCLEAR REACTIONS 194Pt(12C, F)206Po*, 198Pt(12C, F)210Po*, E=58-78 MeV; measured fission fragment spectra, distributions of folding angles and mass distributions of complementary fission fragments using multi-wire proportional counters (MWPC) at BARC-TIFR Pelletron facility; deduced effect of shell correction in the saddle ridge on the mass distribution of fission fragments, no evidence for the modification of potential energy surface at the saddle point due to N=126 neutron shell closure in 210Po.

doi: 10.1103/PhysRevC.92.041601
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2015LA18      J.Phys.(London) G42, 095105 (2015)

P.V.Laveen, E.Prasad, N.Madhavan, S.Pal, J.Sadhukhan, S.Nath, J.Gehlot, A.Jhingan, K.M.Varier, R.G.Thomas

Fusion measurements for the 18O + 194Pt reaction and search for neutron shell closure effects

NUCLEAR REACTIONS 194Pt(18O, X)212Rn, E=77.7-105.3 MeV; measured reaction products, fission fragments; deduced evaporation residue σ, fission fragments σ(θ). Comparison with statistical model analysis of the evaporation residue data employing shell-corrected free energy fission barrier height.

doi: 10.1088/0954-3899/42/9/095105
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6261.


2015SA13      Acta Phys.Pol. B46, 575 (2015)

J.Sadhukhan, K.Mazurek, J.Dobaczewski, W.Nazarewicz, J.A.Sheikh, A.Baran

Multidimensional Skyrme-density-functional Study of the Spontaneous Fission of 238U

RADIOACTIVITY 238U(SF); calculated T1/2, potential energy surfaces, quadrupole diagonal inertia. Microscopic input based on the ATDHFB approach.

doi: 10.5506/APhysPolB.46.575
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2015SA16      Phys.Rev. C 91, 044621 (2015)

R.Sandal, B.R.Behera, V.Singh, M.Kaur, A.Kumar, G.Kaur, P.Sharma, N.Madhavan, S.Nath, J.Gehlot, A.Jhingan, K.S.Golda, H.Singh, S.Mandal, S.Verma, E.Prasad, K.M.Varier, A.M.Vinodkumar, A.Saxena, J.Sadhukhan, S.Pal

Probing nuclear dissipation via evaporation residue excitation functions for the 16, 18O+198Pt reactions

NUCLEAR REACTIONS 198Pt(16O, 16O), (16O, X)214Rn*, E=78.0-105.6 MeV; 198Pt(18O, 18O), (18O, X)216Rn*, E=77.8-105.4; measured evaporation residues (ER), scattered 16,18O spectra, TOF spectrum, angular distributions of ERs, σ(E) for ERs and fusion using HYRA analyzer at IUAC-New Delhi 15 UD Pelletron facility. Comparison with statistical model calculations of compound nuclear decay with Kramers' fission width.

doi: 10.1103/PhysRevC.91.044621
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6263.


2014PA18      Pramana 82, 671 (2014)

S.Pal, J.Sadhukhan

Fission dynamics of hot nuclei

doi: 10.1007/s12043-014-0719-4
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2014SA68      Phys.Rev. C 90, 061304 (2014)

J.Sadhukhan, J.Dobaczewski, W.Nazarewicz, J.A.Sheikh, A.Baran

Pairing-induced speedup of nuclear spontaneous fission

RADIOACTIVITY 240Pu, 264Fm(SF); calculated dynamic fission trajectories fission paths, collective inertia tensor. Superfluid nuclear density functional theory with the Skyrme energy density functional SkM* and a density-dependent pairing interaction. Strong effect of nucleonic pairing correlations on minimum-action fission path.

doi: 10.1103/PhysRevC.90.061304
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2014SI03      Phys.Rev. C 89, 024609 (2014)

V.Singh, B.R.Behera, M.Kaur, A.Kumar, K.P.Singh, N.Madhavan, S.Nath, J.Gehlot, G.Mohanto, A.Jhingan, Ish Mukul, T.Varughese, J.Sadhukhan, S.Pal, S.Goyal, A.Saxena, S.Santra, S.Kailas

Measurement of evaporation residue excitation functions for the 19F + 194, 196, 198Pt reactions

NUCLEAR REACTIONS 194Pt, 196Pt, 198Pt(19F, X)213Fr*/215Fr*/217Fr*, E=96.2-137.3 MeV; measured spectra and angular distribution of evaporation residues (ER), σ(ER, E) using HYRA analyzer at IUAC-Pelletron-Linac facility; deduced survival probability, scaling of the FRLDM fission barrier. Comparison with statistical model calculations.

doi: 10.1103/PhysRevC.89.024609
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6237.


2013MO26      Phys.Rev. C 88, 034606 (2013)

G.Mohanto, N.Madhavan, S.Nath, J.Gehlot, I. Mukul, A.Jhingan, T.Varughese, A.Roy, R.K.Bhowmik, I.Mazumdar, D.A.Gothe, P.B.Chavan, J.Sadhukhan, S.Pal, M.Kaur, V.Singh, A.K.Sinha, V.S.Ramamurthy

Evaporation residue excitation function and spin distribution for 31P+170Er

NUCLEAR REACTIONS 170Er(31P, xn), E=134.4, 136.5, 141.6, 146.7, 151.9, 157.0, 162.1, 167.3, 172.0, 177.2 MeV; measured reaction products, Eγ, Iγ, TOF, evaporation residue (ER) σ(E) and spin distribution, ER-gated γ-multiplicity distributions using HYbrid Recoil mass Analyzer (HYRA) and a 4π spin spectrometer for γ rays at IUAC facility in Delhi. Comparison with statistical model calculations using CCFULL computer code. Discussed effect of compound nucleus shell closure.

doi: 10.1103/PhysRevC.88.034606
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6228.


2013SA01      Phys.Rev. C 87, 014604 (2013); Erratum Phys.Rev. C 87, 069901 (2013)

R.Sandal, B.R.Behera, V.Singh, M.Kaur, A.Kumar, G.Singh, K.P.Singh, P.Sugathan, A.Jhingan, K.S.Golda, M.B.Chatterjee, R.K.Bhowmik, S.Kalkal, D.Siwal, S.Goyal, S.Mandal, E.Prasad, K.Mahata, A.Saxena, J.Sadhukhan, S.Pal

Effect of N/Z in pre-scission neutron multiplicity for 16, 18O + 194, 198Pt systems

NUCLEAR REACTIONS 194,198Pt(16O, X), (18O, X)210Rn*/212Rn*/214Rn*/216Rn*, E=50, 61, 71.7, 79 MeV; measured fission fragment and neutron spectra by TOF, σ(E, θ) using NAND neutron detector array at LINAC+Pelletron facility at IUAC; deduced pre-scission neutron multiplicity. Statistical model analysis. Shell closure effect at N=126 for 212Rn.

doi: 10.1103/PhysRevC.87.014604
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6203.


2013SA62      Phys.Rev. C 88, 064314 (2013)

J.Sadhukhan, K.Mazurek, A.Baran, J.Dobaczewski, W.Nazarewicz, J.A.Sheikh

Spontaneous fission lifetimes from the minimization of self-consistent collective action

RADIOACTIVITY 264Fm(SF); calculated square-root determinants of inertia tensors, energy-weighted moment tensors, single neutron and proton energies, static and dynamic paths as function of quadrupole and triaxial deformations, half-lives for different spontaneous fission paths. Skyrme energy density functional and density-dependent pairing interaction. Comparison with static result obtained with the minimum-energy pathways. Strong dynamical effects predicted.

doi: 10.1103/PhysRevC.88.064314
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2013SI19      Phys.Rev. C 87, 064601 (2013)

V.Singh, B.R.Behera, M.Kaur, A.Kumar, P.Sugathan, K.S.Golda, A.Jhingan, M.B.Chatterjee, R.K.Bhowmik, D.Siwal, S.Goyal, J.Sadhukhan, S.Pal, A.Saxena, S.Santra, S.Kailas

Neutron multiplicity measurements for 19F+194, 196, 198Pt systems to investigate the effect of shell closure on nuclear dissipation

NUCLEAR REACTIONS 194,196,198Pt(19F, X)213Fr*/215Fr*/217Fr*, E=90.2-139.6 MeV; measured fragment spectra, E(n), (fragment)n-coin, time-of-flight, neutron angular distributions, pre- and post-scission neutron multiplicities using NAND array at IUAC facility in Delhi; deduced reduced dissipation coefficients β as function of excitation energy, shell effects on dissipation strength. Comparison with statistical model calculations using Kramers fission width.

doi: 10.1103/PhysRevC.87.064601
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2012MO21      Nucl.Phys. A890-891, 62 (2012)

G.Mohanto, N.Madhavan, S.Nath, J.Sadhukhan, J.Gehlot, I.Mazumdar, M.B.Naik, E.Prasad, I.Mukul, T.Varughese, A.Jhingan, R.K.Bhowmik, A.K.Sinha, D.A.Gothe, P.B.Chavan, S.Pal, V.S.Ramamurthy, A.Roy

Entrance channel effect on ER spin distribution

NUCLEAR REACTIONS 170Er(30Si, X), E=126.0, 130.1, 135.2, 140.3, 145.4, 150.5, 155.6, 160.7 MeV; measured evaporation residue E(ER), I(ER) using multiwire proportional counter, Eγ, Iγ(θ), γγ-coin, (ER)γ-coin; calculated compound nucleus spin distribution using CCFULL code, fusion σ, evaporation residue σ; deduced γ multiplicity, level density parameters, fission barrier, compound nucleus spin distribution, fusion σ, evaporation residue σ. Compared other reactions leading to the same composite system.

doi: 10.1016/j.nuclphysa.2012.07.004
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2012SI12      Phys.Rev. C 86, 014609 (2012)

V.Singh, B.R.Behera, M.Kaur, P.Sugathan, K.S.Golda, A.Jhingan, J.Sadhukhan, D.Siwal, S.Goyal, S.Santra, A.Kumar, R.K.Bhowmik, M.B.Chatterjee, A.Saxena, S.Pal, S.Kailas

Search for an effect of shell closure on nuclear dissipation via a neutron-multiplicity measurement

NUCLEAR REACTIONS 194,196,198Pt(19F, X)213Fr/215Fr/217Fr, E=92-141 MeV; measured neutron spectra, n(fission fragment)-coin, prescission and total neutron multiplicity excitation functions using the NAND array at Pelletron+LINAC facility of IUAC, pulsed beam. Statistical model analysis. Shell effects on nuclear dissipation.

doi: 10.1103/PhysRevC.86.014609
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6198.


2011NA05      Nucl.Phys. A850, 22 (2011)

S.Nath, J.Gehlot, E.Prasad, J.Sadhukhan, P.D.Shidling, N.Madhavan, S.Muralithar, K.S.Golda, A.Jhingan, T.Varughese, P.V.Madhusudhana Rao, A.K.Sinha, S.Pal

Angular momentum distribution for the formation of evaporation residues in fusion of 19F with 184W near the Coulomb barrier

NUCLEAR REACTIONS 184W(19F, X), E=89.2, 94.2, 99.2, 104.3, 109.3 MeV; measured Eγ, Iγ, fragment spectra, (fragment)γ-coin using BGO array and Heavy Ion Reaction Analyzer; deduced multiplicities, σ; calculated σ using CCFULL statistical model code. Comparison with 175Lu(19F, X) data.

doi: 10.1016/j.nuclphysa.2010.12.004
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2011PR13      Phys.Rev. C 84, 064606 (2011)

E.Prasad, K.M.Varier, N.Madhavan, S.Nath, J.Gehlot, S.Kalkal, J.Sadhukhan, G.Mohanto, P.Sugathan, A.Jhingan, B.R.S.Babu, T.Varughese, K.S.Golda, B.P.A.Kumar, B.Satheesh, S.Pal, R.Singh, A.K.Sinha, S.Kailas

Evaporation residue excitation function measurement for the 16O + 194Pt reaction

NUCLEAR REACTIONS 194Pt(16O, X)210Rn*, E=75.4, 79.5, 83.7, 87.8, 91.9, 96.0, 101.1, 103.1 MeV; measured particle spectra of evaporation residues, time of flight, energy loss, σ(θ) of evaporation residues, evaporation residue cross sections. Hybrid Recoil Mass Analyzer (HYRA). Data analyzed with statistical model calculations using KramersĀ formula. PACE3 results. 197Au(16O, X)213Fr*, E(cm)=70-130 MeV; 197Au(18O, X)215Fr*, E(cm)=60-120 MeV; analyzed σ(E) data with statistical model calculations assuming Bohr-Wheeler and Kramers fission widths.

doi: 10.1103/PhysRevC.84.064606
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6117.


2011SA05      Phys.Rev. C 83, 024605 (2011)

K.Banerjee, T.K.Ghosh, S.Bhattacharya, C.Bhattacharya, S.Kundu, T.K.Rana, G.Mukherjee, J.K.Meena, J.Sadhukhan, S.Pal, P.Bhattacharya, K.S.Golda, P.Sugathan, R.P.Singh

Evidence of quasifission in the 16O+ 238U reaction at sub-barrier energies

NUCLEAR REACTIONS 238U(16O, F), E=83, 85, 87, 89, 92, 96, 100 MeV; 197Au(16O, X), E=10 MeV; measured E(n) by TOF, fission fragments, distribution of velocity of the fissioning nuclei, folding angle distribution of fission fragments, mass distributions, neutron multiplicity spectra. Comparison with standard statistical model predictions.

doi: 10.1103/PhysRevC.83.024605
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6136.


2011SA45      Phys.Rev. C 84, 044610 (2011)

J.Sadhukhan, S.Pal

Role of saddle-to-scission dynamics in fission fragment mass distribution

NUCLEAR STRUCTURE 124Ba, 184W, 208Pb, 206Po, 224Th, 254Fm; calculated saddle-to-scission distances, fission barriers, finite-range liquid-drop-model potential contours for angular momentum of 40-60 units, fission fragment mass distributions at the scission line in the framework of two-dimensional Langevin equations. Role of saddle-to-scission dynamics in fission fragment mass distributions.

doi: 10.1103/PhysRevC.84.044610
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2010NA14      Phys.Rev. C 81, 064601 (2010)

S.Nath, P.V.Madhusudhana Rao, S.Pal, J.Gehlot, E.Prasad, G.Mohanto, S.Kalkal, J.Sadhukhan, P.D.Shidling, K.S.Golda, A.Jhingan, N.Madhavan, S.Muralithar, A.K.Sinha

Evaporation residue excitation function from complete fusion of 19F with 184W

NUCLEAR REACTIONS 184W(19F, X), E=90-130 MeV; measured Eγ, Iγ, (evaporation residues)γ-coin, evaporation residue cross sections using energy and time-of-flight method, excitation functions. Statistical model analysis. Discussed effect of presence of isomeric states in the evaporation residues of odd-A Bi isotopes and 199Bi.

doi: 10.1103/PhysRevC.81.064601
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD6139.


2010SA04      Phys.Rev. C 81, 031602 (2010)

J.Sadhukhan, S.Pal

Role of shape dependence of dissipation on nuclear fission

RADIOACTIVITY 224Th(SF); calculated collective potential, prescission neutron multiplicities from statistical and dynamical models for a shape-dependent dissipation, time-dependent fission rates, fission widths, and evaporation residue cross sections based on Langevin dynamical equations. Comparisons with results from Kramers' expression and experimental data.

doi: 10.1103/PhysRevC.81.031602
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2010SA21      Phys.Rev. C 82, 021601 (2010)

J.Sadhukhan, S.Pal

Fission as diffusion of a Brownian particle with variable inertia

NUCLEAR STRUCTURE 224Th; calculated one-body dissipation coefficient, irrotational fluid inertia, reduced dissipation coefficient, collective potential and fission width using Langevin equations. Expanded validity of Kramer's fission width formula.

doi: 10.1103/PhysRevC.82.021601
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2009SA28      Phys.Rev. C 79, 064606 (2009)

J.Sadhukhan, S.Pal

Critical comparison of Kramers' fission width with the stationary width from the Langevin equation

NUCLEAR STRUCTURE 224Th; calculated collective inertia, finite range liquid drop model (FRLDM) potential, time-dependent fission widths, Bohr-Wheeler fission widths and compound nuclear spin as a function of frequency of harmonic oscillator potential for fission of compound nuclei formed in heavy-ion fusion reactions using Langevin's equations. Comparison with Kramers? formula for fission width.

doi: 10.1103/PhysRevC.79.064606
Citations: PlumX Metrics


2008PA17      Nucl.Phys. A808, 1 (2008)

S.Pal, G.Chaudhuri, J.Sadhukhan

The role of neck degree of freedom in nuclear fission

NUCLEAR STRUCTURE 224Th; calculated fission related quantities based on the neck degree of freedom.

doi: 10.1016/j.nuclphysa.2008.05.001
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2008SA30      Phys.Rev. C 78, 011603 (2008); Erratum Phys.Rev. C 79, 019901 (2009)

J.Sadhukhan, S.Pal

Spin dependence of the modified Kramers width of nuclear fission

NUCLEAR REACTIONS 208Pb(16O, X), E=80-140 MeV; calculated neutron, α multiplicities, evaporation residue cross section, reduced dissipation coefficient. Statistical model.

doi: 10.1103/PhysRevC.78.011603
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