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NSR database version of April 27, 2024.

Search: Author = C.Sengupta

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2023JE01      Phys.Lett. B 837, 137641 (2023)

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

Sequential fission and the influence of ²⁰⁸Pb closed shells on the dynamics of superheavy element synthesis reactions

NUCLEAR REACTIONS ²³⁸U, ²⁴⁴Pu, ²⁴⁸Cm, ²⁴⁹Cf(⁵⁰Ti, F), E ∼ 230 MeV; measured fission fragments. ²⁰⁸Pb; deduced σ, binary quasifission mass spectra, sequential fission survival probabilities. The ANU Heavy Ion Accelerator Facility.

doi: 10.1016/j.physletb.2022.137641
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2023SW01      Phys.Lett. B 837, 137655 (2023)

B.M.A.Swinton-Bland, J.Buete, D.J.Hinde, M.Dasgupta, T.Tanaka, A.C.Berriman, D.Y.Jeung, K.Banerjee, L.T.Bezzina, I.P.Carter, K.J.Cook, C.Sengupta, C.Simenel, E.C.Simpson, M.A.Stoyer

Multi-modal mass-asymmetric fission of ¹⁷⁸Pt from simultaneous mass-kinetic energy fitting

NUCLEAR REACTIONS ¹⁴⁴Sm(³⁴S, F), E=146 MeV; measured fission fragments. ¹⁷⁸Pt; deduced mass-angle distribution (MAD), the total kinetic energy (TKE) of the fission fragments, three fission modes: one mass-symmetric and two mass-asymmetric. The 14UD tandem accelerator at the Australian National University Heavy Ion Accelerator Facility.

doi: 10.1016/j.physletb.2022.137655
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2022BE17      Phys.Rev. C 105, 064614 (2022)

A.C.Berriman, D.J.Hinde, D.Y.Jeung, M.Dasgupta, H.Haba, T.Tanaka, K.Banerjee, T.Banerjee, L.T.Bezzina, J.Buete, K.J.Cook, S.Parker-Steele, C.Sengupta, C.Simenel, E.C.Simpson, M.A.Stoyer, B.M.A.Swinton-Bland, E.Williams

Energy dependence of p + ²³²Th fission mass distributions: Mass-asymmetric standard I and standard II modes, and multichance fission

NUCLEAR REACTIONS ²³²Th(p, F), E=6.2-28MeV; measured reaction products, fission fragments; deduced fission fragment yields mass distribution. Studied the influence of the multichance fission on the shape of the mass distribution. Comparison to other experimental data and GEF calculations. CUBE spectrometer consisting of large MWPCs at 14UD tandem electrostatic accelerator of the Australian National University Heavy Ion Accelerator Facility.

RADIOACTIVITY ²⁴⁸Cm(SF); measured fission fragments; deduced fission fragment yields mass distribution.

doi: 10.1103/PhysRevC.105.064614
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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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2020BA41      Phys.Rev. C 102, 024603 (2020)

T.Banerjee, D.J.Hinde, D.Y.Jeung, K.Banerjee, M.Dasgupta, A.C.Berriman, L.T.Bezzina, H.M.Albers, Ch.E.Dullmann, J.Khuyagbaatar, B.Kindler, B.Lommel, E.C.Simpson, C.Sengupta, B.M.A.Swinton-Bland, T.Tanaka, A.Yakushev, K.Eberhardt, C.Mokry, J.Runke, P.Thorle-Pospiech, N.Trautmann

Systematic evidence for quasifission in ⁹Be-, ¹²C-, and ¹⁶O-induced reactions forming ^{258, 260}No

NUCLEAR REACTIONS ²³⁸U(⁹Be, F)²⁴⁷Cm^*, E=45-60 MeV; ²⁴⁴U(⁹Be, F)²⁵³Cf^*, E=45-60 MeV; ²⁴⁸Cm(⁹Be, F)²⁵⁷Fm^*, E=45-60 MeV; ²⁴⁹Cf(⁹Be, F)²⁵⁸No^*, E=45-60 MeV; ²⁴⁸Cm(¹²C, F)²⁶⁰No^*, E=60.80-89.18 MeV; ²⁴⁴Pu(¹⁶O, F)²⁶⁰No^*, E=84.90-116.27 MeV; measured fission fragments, fission fragment mass and angular distributions using the CUBE spectrometer consisting of three multiwire proportional counters (MWPCs) at the Heavy Ion Accelerator Facility (HIAF) of the Australian National University; deduced reconstructed fission source velocity distributions, full momentum transfer (FMT) fission differential σ(θ, E), total and FMT fission σ(E), FMT mass-angle distributions (MADs), FMT fission angular anisotropies; analyzed mass-ratio (MR) spectra. ^{254,256,258,260,262}No; deduced spontaneous fission mass-ratio distributions. Comparison with predictions from the transition state model (TSM) calculations for fusion fission reactions.

doi: 10.1103/PhysRevC.102.024603
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0983.

2020PR14      Phys.Lett. B 811, 135941 (2020)

E.Prasad, D.J.Hinde, M.Dasgupta, D.Y.Jeung, A.C.Berriman, B.M.A.Swinton-Bland, C.Simenel, E.C.Simpson, R.Bernard, E.Williams, K.J.Cook, D.C.Rafferty, C.Sengupta, J.F.Smith, K.Vo-Phuoc, J.Walshe

Systematics of the mass-asymmetric fission of excited nuclei from ¹⁷⁶Os to ²⁰⁶Pb

NUCLEAR REACTIONS ¹⁷⁶Os, ^176,180Pt, ^192,198Hg, ²⁰⁶Pb(p, F), (¹²C, F), (³²S, F), (⁴⁰Ca, F), (⁴⁸Ca, F), E not given; analyzed available data; deduced mass-asymmetric fission systematics, total kinetic energy distributions, fission mass-ratio distributions. Comparison with GEF calculations.

doi: 10.1016/j.physletb.2020.135941
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2020SW02      Phys.Rev. C 102, 054611 (2020)

B.M.A.Swinton-Bland, M.A.Stoyer, A.C.Berriman, D.J.Hinde, C.Simenel, J.Buete, T.Tanaka, K.Banerjee, L.T.Bezzina, I.P.Carter, K.J.Cook, M.Dasgupta, D.Y.Jeung, C.Sengupta, E.C.Simpson, K.Vo-Phuoc

Mass-asymmetric fission of ^{205, 207, 209}Bi at energies close to the fission barrier using proton bombardment of ^{204, 206, 208}Pb

NUCLEAR REACTIONS ²⁰⁴Pb(p, X)²⁰⁵Bi^*, E=18.99, 20.99, 22.98, 24.99, 28.00 MeV; ²⁰⁶Pb(p, X)²⁰⁷Bi^*, E=20.99, 22.98, 24.98, 28.00 MeV; ²⁰⁸Pb(p, X)²⁰⁹Bi^*, E=24.98, 28.00 MeV; measured fission fragments using the CUBE fission spectrometer, with two large area position sensitive multiwire proportional counters (MWPCs), angular distributions at the 14UD tandem accelerator at Australian National University; deduced fission yields, fission mass ratios, fission mass distributions, mass-angle distribution (MAD) as a function of mass ratio, light and heavy fragment peak values. Comparison to previous experimental data, and theoretical calculations using GEF2019/1.3.

doi: 10.1103/PhysRevC.102.054611
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2019BA26      Phys.Rev.Lett. 122, 232503 (2019)

K.Banerjee, D.J.Hinde, M.Dasgupta, E.C.Simpson, D.Y.Jeung, C.Simenel, B.M.A.Swinton-Bland, E.Williams, I.P.Carter, K.J.Cook, H.M.David, C.E.Dullmann, J.Khuyagbaatar, B.Kindler, B.Lommel, E.Prasad, C.Sengupta, J.F.Smith, K.Vo-Phuoc, J.Walshe, A.Yakushev

Mechanisms Suppressing Superheavy Element Yields in Cold Fusion Reactions

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁰Ti, X), (⁴⁸Ca, X), (⁵⁴Cr, X), E not given; analyzed available data; deduced projectile impact on drastic fall in the symmetric fission yield, which is reflected in the measured mass-angle distribution by the presence of competing fast nonequilibrium deep inelastic and quasifission processes.

doi: 10.1103/PhysRevLett.122.232503
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2019CO06      Phys.Rev.Lett. 122, 102501 (2019)

K.J.Cook, E.C.Simpson, L.T.Bezzina, M.Dasgupta, D.J.Hinde, K.Banerjee, A.C.Berriman, C.Sengupta

Origins of Incomplete Fusion Products and the Suppression of Complete Fusion in Reactions of ⁷Li

NUCLEAR REACTIONS ²⁰⁹Bi(⁷Li, X)²¹²Po, E(cm)=30.42-46.46 MeV; measured reaction products, Eα, Iα; deduced σ. Comparison with PACE4 statistical model calculations.

doi: 10.1103/PhysRevLett.122.102501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0951.

2018CO01      Phys.Rev. C 97, 021601 (2018)

K.J.Cook, I.P.Carter, E.C.Simpson, M.Dasgupta, D.J.Hinde, L.T.Bezzina, S.Kalkal, C.Sengupta, C.Simenel, B.M.A.Swinton-Bland, K.Vo-Phuoc, E.Williams

Interplay of charge clustering and weak binding in reactions of ⁸Li

NUCLEAR REACTIONS ²⁰⁹Bi(⁸Li, X), E=38.2-40.9 MeV, [secondary ⁸Li from primary reaction ⁹Be(⁷Li, ⁸Li)⁸Be, E=45 MeV using SOLEROO separator at Australian National University]; measured proton, deuteron, triton, α, ^7,8Li spectra using two ΔE-E telescopes, energy and angle, αα-, αt-, αd-, and αp-coin; deduced total α production σ, energy averages σ(θ) for singles and coincidence events, reaction Q values, relative energy distribution, ⁸Li breakup into charged clusters; calculated time of breakup for αt-pairs using classical dynamical model.

doi: 10.1103/PhysRevC.97.021601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0896.

2018KH05      Phys.Rev. C 97, 064618 (2018)

J.Khuyagbaatar, H.M.David, D.J.Hinde, I.P.Carter, K.J.Cook, M.Dasgupta, Ch.E.Dullmann, D.Y.Jeung, B.Kindler, B.Lommel, D.H.Luong, E.Prasad, D.C.Rafferty, C.Sengupta, C.Simenel, E.C.Simpson, J.F.Smith, K.Vo-Phuoc, J.Walshe, A.Wakhle, E.Williams, A.Yakushev

Nuclear structure dependence of fusion hindrance in heavy element synthesis

NUCLEAR REACTIONS ^204,208Pb(⁴⁸Ti, X), E=240.0, 245.0, 252.2, 259.0, 270.0, 280.0 MeV; ^206,208Pb(⁵⁰Ti, X), E=236.0, 240.0, 252.0, 258.0, 264.0, 270.0, 280.2 MeV; measured reaction products, mass ratio and angular distributions (MAD) of fragments, double differential σ(θ, M_R), and widths using CUBE detector array at the Heavy Ion Accelerator Facility of Australian National University. ²⁰⁶Pb(³⁶S, X), (³⁴S, X), (⁴⁸Ti, X), (⁵⁰Ti, X), E^*=25-60 MeV; calculated mean-squared angular momenta, widths and M_R distributions, and compared with experimental data. Discussed impact of nuclear structure on fusion-evaporation reactions.

doi: 10.1103/PhysRevC.97.064618
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