NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = J.Sadhukhan Found 50 matches. 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
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
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
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
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
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
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
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
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
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
2020MO17 Phys.Rev. C 101, 044607 (2020) 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
2014PA18 Pramana 82, 671 (2014) Fission dynamics of hot nuclei
doi: 10.1007/s12043-014-0719-4
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
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
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
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
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
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
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
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
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
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
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
2011SA45 Phys.Rev. C 84, 044610 (2011) 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
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
2010SA04 Phys.Rev. C 81, 031602 (2010) 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
2010SA21 Phys.Rev. C 82, 021601 (2010) 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
2009SA28 Phys.Rev. C 79, 064606 (2009) 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
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
2008SA30 Phys.Rev. C 78, 011603 (2008); Erratum Phys.Rev. C 79, 019901 (2009) 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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