NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = B.V.John Found 25 matches. 2023GU15 Phys.Lett. B 845, 138120 (2023) Y.K.Gupta, V.B.Katariya, G.K.Prajapati, K.Hagino, D.Patel, V.Ranga, U.Garg, L.S.Danu, A.Pal, B.N.Joshi, S.Dubey, V.V.Desai, S.Panwar, N.Kumar, S.Mukhopadhyay, P.Singh, N.Sirswal, R.Sariyal, I.Mazumdar, B.V.John Precise determination of quadrupole and hexadecapole deformation parameters of the sd-shell nucleus, 28Si NUCLEAR REACTIONS 90Zr(28Si, 28Si), E=70-102 MeV; measured reaction products. 28Si; deduced σ, quadrupole and hexadecapole deformation parameters using a Bayesian analysis within the framework of coupled channels (CC) calculations. BARC-TIFR 14 MV Pelletron accelerator facility.
doi: 10.1016/j.physletb.2023.138120
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
2021JO07 Nucl.Phys. A1016, 122320 (2021) B.N.Joshi, Arun K.Jain, D.C.Biswas, B.V.John, Y.K.Gupta, L.S.Danu, R.P.Vind, G.K.Prajapati, S.Mukhopadhyay, N.Kumar Direct 16O-cluster knockout from 24Mg(g.s.) NUCLEAR REACTIONS 24Mg(16O, 216O)8Be, E=127, 119 MeV; measured reaction products; deduced σ(θ, E). Comparison with FR-DWIA calculations. BARC-TIFR Pelletron LINAC facility.
doi: 10.1016/j.nuclphysa.2021.122320
2021MI20 Phys.Rev. C 104, 054606 (2021) C.V.Midhun, M.M.Musthafa, S.V.Suryanarayana, T.Santhosh, A.Baishya, P.N.Patil, A.Pal, P.C.Rout, S.Santra, R.Kujur, A.Joseph, A.Shaima, K.Hajara, P.T.M.Shan, B.Satheesh, B.V.John, E.T.Mirgule, K.C.Jagadeesan, S.Ganesan Impact of 7Be breakup on the 7Li(p, n) neutron spectrum NUCLEAR REACTIONS 7Li(p, n), E=21 MeV beam from BARC-TIFR Pelletron-Linac facility; measured evaporation products using two silicon detector telescopes, E(n), I(n) by time-of-flight using three liquid organic scintillators, (3He)α-coin, (3He)n-coin, double differential σ(E(3He, α), θ) for 7Li(p, n)7Be* to n+3He+α channel; deduced ΔE-E correlation spectra, 3He-3He energy correlation plot, double differential σ(En, θ) simulated 0° breakup neutron spectrum at 21 MeV with contributions from continuum and resonance. Comparison of neutron spectrum with previous experimental data, and with theoretical calculations using FRESCO code.
doi: 10.1103/PhysRevC.104.054606
2020MU08 Nucl.Phys. A1000, 121785 (2020) S.Mukhopadhyay, D.C.Biswas, L.S.Danu, R.Chakrabarti, U.Garg, S.K.Tandel, Y.K.Gupta, B.N.Joshi, G.K.Prajapati, B.V.John, S.Saha, J.Sethi, R.Palit Lifetime measurement and shell model description of negative parity states up to band-termination in 49V
doi: 10.1016/j.nuclphysa.2020.121785
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
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
2018GU16 Phys.Rev. C 98, 041601 (2018) Y.K.Gupta, D.C.Biswas, G.K.Prajapati, L.S.Danu, B.N.Joshi, S.Mukhopadhyay, B.V.John, S.Dubey, Si.Chettri, N.Kumar, R.P.Vind, S.Mukherjee Affirmation of transfer-breakup as a source for α particle emission in 12, 13C + 232Th fission reactions NUCLEAR REACTIONS 232Th(12C, F), (13C, F), E=74.5 MeV; measured reaction products and fission fragments, Eα, Iα, α(θ), (fragment)α-coin, α-particle multiplicity spectra by moving source disentangling analysis (MSDA) using position sensitive ionization chambers and hybrid detector telescope for fission fragment and α detection at BARC-TIFR 14-MV Pelletron accelerator facility; deduced compound nucleus excitation energy, Qα and S(n), α-particle multiplicity contributions, complementary fission fragment, near-scission emission, excess α-particle emission from α-transfer induced fission by α-particle transfer following breakup of 8Be into two α particles.
doi: 10.1103/PhysRevC.98.041601
2017JO03 Pramana 88, 29 (2017) B.N.Joshi, A.K.Jain, D.C.Biswas, B.V.John, Y.K.Gupta, L.S.Danu, R.P.Vind, R.P.Vind, G.K.Prajapati, S.Mukhopadhyay, A.Saxena Search for 12C+12C clustering in 24Mg ground state NUCLEAR REACTIONS 24Mg(12C, 212C)12C, E=104 MeV; measured reaction products; deduced σ(θ, E). Comparison with theoretical calculations.
doi: 10.1007/s12043-016-1331-6
2017MU12 Phys.Rev. C 96, 014315 (2017); Pub. Note Phys.Rev. C 96, 019901 (2017) S.Mukhopadhyay, D.C.Biswas, S.K.Tandel, S.Frauendorf, L.S.Danu, P.N.Prashanth, B.N.Joshi, G.K.Prajapati, B.V.John, S.Nag, T.Trivedi, S.Saha, J.Sethi, R.Palit, P.K.Joshi Semi-decoupled band and other high-spin band structures in 188Pt NUCLEAR REACTIONS 174Yb(18O, 4n)188Pt, E=85 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear pol)(IPDCO) using the INGA array at the Pelletron-Linac facility of TIFR-Mumbai. 188Pt; deduced high-spin levels, J, π, multipolarities, bands, semi-decoupled band, alignments, staggering. Comparison with cranking model calculations. Systematics of staggering and negative-parity sequences based on 5- in 186,188,190,192,194,196Pt.
doi: 10.1103/PhysRevC.96.014315
2017SO03 Phys.Rev. C 95, 014612 (2017) S.Sodaye, R.Tripathi, B.V.John, K.Ramachandran, P.K.Pujari Mass distribution and mass resolved angular distribution of fission products in 28Si + 232Th NUCLEAR REACTIONS 232Th(28Si, F), E=158, 166, 180 MeV; measured Eγ, Iγ, fission fragment mass distribution, mass resolved angular distributions using recoil catcher method, formation cross sections of fission products using off-line gamma-ray spectrometry at BARC-TIFR Pelletron-LINAC facility; deduced symmetric mass distribution for complete fusion fission, asymmetric mass distribution for transfer induced fission, higher angular anisotropy for symmetric fission products, and contribution from pre-equilibrium fission.
doi: 10.1103/PhysRevC.95.014612
2016DU25 Phys.Rev. C 94, 064610 (2016) S.Dubey, D.C.Biswas, S.Mukherjee, D.Patel, Y.K.Gupta, G.K.Prajapati, B.N.Joshi, L.S.Danu, S.Mukhopadhyay, B.V.John, S.V.Suryanarayana, R.P.Vind Quasi-elastic scattering and transfer angular distribution for 10, 11B + 232Th systems at near-barrier energies NUCLEAR REACTIONS 232Th(11B, 11B'), (11B, X), E=52, 53, 54, 55, 56, 57, 59, 61, 65 MeV; 232Th(10B, 10B'), (10B, X), E=49, 51, 52, 53, 54, 55, 56, 57, 59, 61, 65 MeV; measured outgoing particles, quasielastic σ(θ, E), transfer σ(E) for 12,13C, 9,10Be, 6,7Li, and reaction σ(E) at 14UD BARC-TIFR Pelletron facility; deduced optical model parameters, energy dependence of the real and imaginary potentials, reduced reaction cross sections. Optical model analysis using code ECIS with phenomenological Woods-Saxon potentials.
doi: 10.1103/PhysRevC.94.064610
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
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
2012PR04 Nucl.Phys. A882, 62 (2012) E.Prasad, K.M.Varier, R.G.Thomas, A.M.Vinodkumar, K.Mahata, S.Appannababu, P.Sugathan, K.S.Golda, B.R.S.Babu, A.Saxena, B.V.John, S.Kailas Fission fragment angular distribution measurements for 16O + 194Pt reaction at energies near the Coulomb barrier NUCLEAR REACTIONS 194Pt(16O, F), E=79-90 MeV; measured fission E(fragment), I(fragment, θ); calculated σ(θ), fission barrier, ER σ, neutron multiplicity using SSPM (saddle point statistical model) PACE code and RFRM (rotating FR model) moments of inertia; deduced fission fragments σ(θ), σ, fission probability, fission barrier, level density parameters.
doi: 10.1016/j.nuclphysa.2012.03.005
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
2011JO02 Phys.Rev.Lett. 106, 022501 (2011) B.N.Joshi, A.K.Jain, Y.K.Gupta, D.C.Biswas, A.Saxena, B.V.John, L.S.Danu, R.P.Vind, R.K.Choudhury Heavy Cluster Knockout Reaction 16O(12C, 212C)4He and the Nature of the 12C-12C Interaction Potential NUCLEAR REACTIONS 16O(12C, 212C), E=118.8 MeV; measured reaction products, 12C-12C-coin.; deduced σ(θ), σ(θ, E), optical potentials. Comparison with finite range DWIA framework.
doi: 10.1103/PhysRevLett.106.022501
2010PR05 Phys.Rev. C 81, 054608 (2010) E.Prasad, K.M.Varier, R.G.Thomas, P.Sugathan, A.Jhingan, N.Madhavan, B.R.S.Babu, R.Sandal, S.Kalkal, S.Appannababu, J.Gehlot, K.S.Golda, S.Nath, A.M.Vinodkumar, B.P.A.Kumar, B.V.John, G.Mohanto, M.M.Musthafa, R.Singh, A.K.Sinha, S.Kailas Conclusive evidence of quasifission in reactions forming the 210Rn compound nucleus NUCLEAR REACTIONS 186W(24Mg, X)210Rn, E=111-125 MeV; 194Pt(16O, X)210Rn, E=75-102 MeV; measured fission fragment mass ratio distributions and mass ratio widths. Comparison with coupled-channel calculations.
doi: 10.1103/PhysRevC.81.054608
2008AJ01 Phys.Rev. C 77, 021601 (2008) B.P.Ajitkumar, K.M.Varier, B.V.John, A.Saxena, B.K.Nayak, D.C.Biswas, R.G.Thomas, S.Kailas Fission fragment anisotropies for the 13C+235U system at near-Coulomb barrier energies NUCLEAR REACTIONS 235U(13C, X), E(cm)=55-85 MeV; measured fission fragment spectra, anisotropies, excitation functions. 236U(12C, X); compared fission anisotropies.
doi: 10.1103/PhysRevC.77.021601
2008AJ02 Phys.Rev. C 77, 21601 (2008) B.P.Ajitkumar, K.M.Varier, B.V.John, A.Saxena, B.K.Nayak, D.C.Biswas, R.G.Thomas, S.Kailas Fission fragment anisotropies for the 13C + 235U system at near-Coulomb barrier energies NUCLEAR REACTIONS 235U(13C, f), E=59.7-79.6 MeV; measured products; deduced σ, σ(E). Data were imported from EXFOR entry D6032.
doi: 10.1103/physrevc.77.021601
2008NA27 Phys.Rev. C 78, 061602 (2008) B.K.Nayak, A.Saxena, D.C.Biswas, E.T.Mirgule, B.V.John, S.Santra, R.P.Vind, R.K.Choudhury, S.Ganesan Determination of the 233Pa(n, f) reaction cross section from 11.5 to 16.5 MeV neutron energy by the hybrid surrogate ratio approach NUCLEAR REACTIONS 232Th(6Li, α), (6Li, d), E=38.0 MeV; measured fission spectra, charged particle spectra. 233Pa(n, F), E=11.5-16.5 MeV; deduced fission σ. Comparison with predictions of EMPIRE code.
doi: 10.1103/PhysRevC.78.061602
2007NA12 Phys.Rev. C 75, 054615 (2007) B.K.Nayak, R.K.Choudhury, A.Saxena, P.K.Sahu, R.G.Thomas, D.C.Biswas, B.V.John, E.T.Mirgule, Y.K.Gupta, M.Bhike, H.G.Rajprakash Evidence for Coulomb effects on the fusion barrier distribution for deformed projectile nuclei NUCLEAR REACTIONS 115In(16O, X), E=49-69 MeV; 115In(28Si, X), E=92-114 MeV; 115In(30Si, X), E=92-120 MeV; measured cross sections, quasielastic excitation functions. Deduced fusion barrier distributions.
doi: 10.1103/PhysRevC.75.054615
2006SA20 Phys.Rev. C 73, 064604 (2006) P.K.Sahu, A.Saxena, B.K.Nayak, R.G.Thomas, B.V.John, R.K.Choudhury Fusion barrier distribution derived from quasielastic excitation functions in 11B, 12C, 13C + 209Bi reactions NUCLEAR REACTIONS 209Bi(12C, X), (13C, X), E=50-72 MeV; 209Bi(11B, X), E=40-62 MeV; measured quasielastic excitation functions; deduced fusion barrier distributions.
doi: 10.1103/PhysRevC.73.064604
2005KU38 Phys.Rev. C 72, 067601 (2005); Erratum Phys.Rev. C 73, 039901 (2006) B.P.A.Kumar, K.M.Varier, R.G.Thomas, K.Mahata, B.V.John, A.Saxena, H.G.Rajprakash, S.Kailas Fission fragment angular distributions of the 13C + 232Th system at near-barrier energies NUCLEAR REACTIONS 232Th(13C, X), E=55-75 MeV; measured fission fragment angular distributions, anisotropies, fusion σ.
doi: 10.1103/PhysRevC.72.067601
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