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Williams E, Hinde D, Dasgupta M, Carter I, Cook K, Jeung D, Luong D, McNeil S, Palshetkar C, Rafferty D, Ramachandran K, Simenel C, Simpson E, Wakhle A. Exploring dissipative processes at high angular momentum in 58Ni+ 60Ni reactions. EPJ WEB OF CONFERENCES 2016. [DOI: 10.1051/epjconf/201611708021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Carter IP, Dasgupta M, Hinde DJ, Luong DH, Williams E, Ramachandran K, Cook KJ, Muirhead AG, Marshall S, Tunningley T. Recent developments of SOLEROO: Australia’s first high energy radioactive Ion Beam capability. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20159100001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hinde D, Williams E, du Rietz R, Dasgupta M, Wakhle A, Simenel C, Luong D, Cook K. Mapping quasifission characteristics in heavy element formation reactions. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158600015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Jeung D, Williams E, Hinde DJ, Dasgupta M, du Rietz R, Evers M, Lin C, Luong D, Simenel C, Wakhle A. Dynamical approach to heavy ion-induced fission. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20159100005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Williams E, Hinde DJ, Dasgupta M, du Rietz R, Carter IP, Evers M, Luong DH, McNeil SD, Rafferty DC, Ramachandran K, Wakhle A. How signatures of quasifission evolve in reactions forming Curium. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158600063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dasgupta M. Summary of FUSION14. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158600068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Cook K, Luong D, Carter I, Dasgupta M, Hinde D, McNeil S, Rafferty D, Ramachandran K, Simenel C, Williams E. Breakup following interactions with light targets: Investigating new methods to probe nuclear physics input to the cosmological lithium problem. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20159100002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Simenel C, Dasgupta M, Hinde DJ, Oberacker VE, Umar AS, Williams E. Microscopic study of the effect of intrinsic degrees of freedom on fusion. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158600047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Wakhle A, Simenel C, Hinde D, Dasgupta M, Evers M, Luong D, du Rietz R. Comparing Experimental and Theoretical Quasifission Mass Angle Distributions. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158600061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rafferty D, Dasgupta M, Hinde D, Simenel C, Cook KJ, Carter IP, Luong DH, McNeil SD, Ramachandran K, Wakhle A, Williams E. Investigating energy dissipation through nucleon transfer reactions. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20159100010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Biswal SS, Das S, Balasubramanian S, Mohanty DN, Sethy K, Dasgupta M. Serum amyloid A and haptoglobin levels in crossbred cows with endometritis following different therapy. Vet World 2014. [DOI: 10.14202/vetworld.2014.1066-1070] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Wakhle A, Simenel C, Hinde DJ, Dasgupta M, Evers M, Luong DH, du Rietz R, Williams E. Interplay between quantum shells and orientation in quasifission. PHYSICAL REVIEW LETTERS 2014; 113:182502. [PMID: 25396364 DOI: 10.1103/physrevlett.113.182502] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Indexed: 06/04/2023]
Abstract
The quasifission mechanism hinders fusion in heavy systems through breakup within zeptoseconds into two fragments with partial mass equilibration. Its dependence on the structure of both the collision partners and the final fragments is a key question. Our original approach is to combine an experimental measurement of the fragments' mass-angle correlations in (40)Ca+(238)U with microscopic quantum calculations. We demonstrate an unexpected interplay between the orientation of the prolate deformed (238)U with quantum shell effects in the fragments. In particular, calculations show that only collisions with the tip of (238)U produce quasifission fragments in the magic Z=82 region, while collisions with the side are the only ones that may result in fusion.
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Khuyagbaatar J, Yakushev A, Düllmann CE, Ackermann D, Andersson LL, Asai M, Block M, Boll RA, Brand H, Cox DM, Dasgupta M, Derkx X, Di Nitto A, Eberhardt K, Even J, Evers M, Fahlander C, Forsberg U, Gates JM, Gharibyan N, Golubev P, Gregorich KE, Hamilton JH, Hartmann W, Herzberg RD, Heßberger FP, Hinde DJ, Hoffmann J, Hollinger R, Hübner A, Jäger E, Kindler B, Kratz JV, Krier J, Kurz N, Laatiaoui M, Lahiri S, Lang R, Lommel B, Maiti M, Miernik K, Minami S, Mistry A, Mokry C, Nitsche H, Omtvedt JP, Pang GK, Papadakis P, Renisch D, Roberto J, Rudolph D, Runke J, Rykaczewski KP, Sarmiento LG, Schädel M, Schausten B, Semchenkov A, Shaughnessy DA, Steinegger P, Steiner J, Tereshatov EE, Thörle-Pospiech P, Tinschert K, Torres De Heidenreich T, Trautmann N, Türler A, Uusitalo J, Ward DE, Wegrzecki M, Wiehl N, Van Cleve SM, Yakusheva V. 48Ca+249Bk fusion reaction leading to element Z = 117: long-lived α-decaying 270Db and discovery of 266Lr. PHYSICAL REVIEW LETTERS 2014; 112:172501. [PMID: 24836239 DOI: 10.1103/physrevlett.112.172501] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Indexed: 06/03/2023]
Abstract
The superheavy element with atomic number Z=117 was produced as an evaporation residue in the (48)Ca+(249)Bk fusion reaction at the gas-filled recoil separator TASCA at GSI Darmstadt, Germany. The radioactive decay of evaporation residues and their α-decay products was studied using a detection setup that allowed measuring decays of single atomic nuclei with half-lives between sub-μs and a few days. Two decay chains comprising seven α decays and a spontaneous fission each were identified and are assigned to the isotope (294)117 and its decay products. A hitherto unknown α-decay branch in (270)Db (Z = 105) was observed, which populated the new isotope (266)Lr (Z = 103). The identification of the long-lived (T(1/2) = 1.0(-0.4)(+1.9) h) α-emitter (270)Db marks an important step towards the observation of even more long-lived nuclei of superheavy elements located on an "island of stability."
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Hinde D, du Rietz R, Williams E, Simenel C, Lin C, Wakhle A, Cook K, Dasgupta M, Evers M, Luong D. Mass-angle distributions. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20146603037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dasgupta M, Luong D, Hinde D, Evers M. Many-body Quantum Reaction Dynamics near the Fusion Barrier. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20146601003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Carter IP, Ramachandran K, Dasgupta M, Hinde DJ, Rafiei R, Luong DH, Williams E, Cook KJ, McNeil S, Rafferty DC, Harding AB, Muirhead AG, Tunningley T. An Ion Beam Tracking System based on a Parallel Plate Avalanche Counter. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136302022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Morjean M, Chbihi A, Dasgupta M, Drouart A, Frankland J, Frégeau J, Hinde D, Jacquet D, Nalpas L, Pârlog M, Simenel C, Tassan-Got L, Williams E. Long lifetime components in the decay of excited super-heavy nuclei. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136302011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cook K, Luong D, Williams E, Carter I, Dasgupta M, Hinde D, Ramachandran K. Developing new methods to investigate nuclear physics input to the cosmological lithium problem. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136303011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Khuyagbaatar J, Hinde D, du Rietz R, Carter IP, Dasgupta M, Düllmann C, Evers M, Wakhle A, Williams E, Yakushev A. Study of fusion reactions forming Cf nuclei. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136302015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Simenel C, Dasgupta M, Hinde DJ, Kheifets A, Wakhle A. Probing quantum many-body dynamics in nuclear systems. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136302001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hinde DJ, Dasgupta M, Carter I, Cook K, Evers M, Luong D, Ramachandran K, Rafferty D, Simenel C, Wakhle A, Williams E. Nuclear Reaction Dynamics Research at the Australian National University. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136302005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ramachandran K, Hinde D, Dasgupta M, Williams E, Wakhle A, Luong D, Evers M, Carter I, Das S. Fission fragment mass distribution in the 13C+ 182W and 176Yb reactions. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136302017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Luong D, Dasgupta M, Hinde D, du Rietz R, Rafiei R, Evers M, Lin C, Wakhle A, Ramachandran K, Carter I, Diaz-Torres A. Breakup mechanisms for 7Li + 197Au, 204Pb systems at sub-barrier energies. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136302004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tam J, Hartog N, Divine K, Dasgupta M, Hoffman R, Vasudev M. Identification of Vocal Cord Dysfunction by Methacholine Laryngoscopy Reduces Inhaled Corticosteroid and Rescue Inhaler Use in Children and Adults. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Simenel C, Wakhle A, Avez B, Hinde DJ, Rietz RD, Dasgupta M, Evers M, Lin CJ, Luong DH. Effects of nuclear structure on quasi-fission. EPJ WEB OF CONFERENCES 2012. [DOI: 10.1051/epjconf/20123809001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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