Mass Equilibration and Fluctuations in the Angular Momentum Dependent Dynamics of Heavy Element Synthesis Reactions

T. Tanaka; D. J. Hinde; M. Dasgupta; E. Williams; K. Vo-Phuoc; C. Simenel; E. C. Simpson; D. Y. Jeung; I. P. Carter; K. J. Cook; N. R. Lobanov; D. H. Luong; C. Palshetkar; D. C. Rafferty; K. Ramachandran

doi:10.1103/PhysRevLett.127.222501

Mass Equilibration and Fluctuations in the Angular Momentum Dependent Dynamics of Heavy Element Synthesis Reactions

T. Tanaka, D. J. Hinde, M. Dasgupta, E. Williams, K. Vo-Phuoc, C. Simenel, E. C. Simpson, D. Y. Jeung, I. P. Carter, K. J. Cook, N. R. Lobanov, D. H. Luong, C. Palshetkar, D. C. Rafferty, K. Ramachandran

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Mass and angle distributions for the Cr52+Pt198 and Cr54+Pt196 reactions (both forming No250) were measured and subtracted, giving new information on fast quasifission mass evolution, and the first direct determination of the dependence of sticking times on angular momentum. TDHF calculations showed good agreement with average experimental values, but experimental mass distributions unexpectedly extended to symmetric splits while the peak yield remained close to the initial masses. This implies a strong role of fluctuations in mass division early in the collision, giving insights into the transition from fast energy dissipative deep-inelastic collisions to quasifission.

Original language	English
Article number	222501
Journal	Physical Review Letters
Volume	127
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.127.222501
Publication status	Published - 24 Nov 2021

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10.1103/PhysRevLett.127.222501

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Tanaka, T., Hinde, D. J., Dasgupta, M., Williams, E., Vo-Phuoc, K., Simenel, C., Simpson, E. C., Jeung, D. Y., Carter, I. P., Cook, K. J., Lobanov, N. R., Luong, D. H., Palshetkar, C., Rafferty, D. C., & Ramachandran, K. (2021). Mass Equilibration and Fluctuations in the Angular Momentum Dependent Dynamics of Heavy Element Synthesis Reactions. Physical Review Letters, 127(22), Article 222501. https://doi.org/10.1103/PhysRevLett.127.222501

@article{cf106f38faa84c45a73a1afff06971f4,

title = "Mass Equilibration and Fluctuations in the Angular Momentum Dependent Dynamics of Heavy Element Synthesis Reactions",

abstract = "Mass and angle distributions for the Cr52+Pt198 and Cr54+Pt196 reactions (both forming No250) were measured and subtracted, giving new information on fast quasifission mass evolution, and the first direct determination of the dependence of sticking times on angular momentum. TDHF calculations showed good agreement with average experimental values, but experimental mass distributions unexpectedly extended to symmetric splits while the peak yield remained close to the initial masses. This implies a strong role of fluctuations in mass division early in the collision, giving insights into the transition from fast energy dissipative deep-inelastic collisions to quasifission.",

author = "T. Tanaka and Hinde, {D. J.} and M. Dasgupta and E. Williams and K. Vo-Phuoc and C. Simenel and Simpson, {E. C.} and Jeung, {D. Y.} and Carter, {I. P.} and Cook, {K. J.} and Lobanov, {N. R.} and Luong, {D. H.} and C. Palshetkar and Rafferty, {D. C.} and K. Ramachandran",

note = "Publisher Copyright: {\textcopyright} 2021 American Physical Society.",

year = "2021",

month = nov,

day = "24",

doi = "10.1103/PhysRevLett.127.222501",

language = "English",

volume = "127",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "22",

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Tanaka, T, Hinde, DJ , Dasgupta, M , Williams, E, Vo-Phuoc, K, Simenel, C , Simpson, EC, Jeung, DY, Carter, IP, Cook, KJ, Lobanov, NR, Luong, DH, Palshetkar, C, Rafferty, DC & Ramachandran, K 2021, 'Mass Equilibration and Fluctuations in the Angular Momentum Dependent Dynamics of Heavy Element Synthesis Reactions', Physical Review Letters, vol. 127, no. 22, 222501. https://doi.org/10.1103/PhysRevLett.127.222501

TY - JOUR

T1 - Mass Equilibration and Fluctuations in the Angular Momentum Dependent Dynamics of Heavy Element Synthesis Reactions

AU - Tanaka, T.

AU - Hinde, D. J.

AU - Dasgupta, M.

AU - Williams, E.

AU - Vo-Phuoc, K.

AU - Simenel, C.

AU - Simpson, E. C.

AU - Jeung, D. Y.

AU - Carter, I. P.

AU - Cook, K. J.

AU - Lobanov, N. R.

AU - Luong, D. H.

AU - Palshetkar, C.

AU - Rafferty, D. C.

AU - Ramachandran, K.

PY - 2021/11/24

Y1 - 2021/11/24

N2 - Mass and angle distributions for the Cr52+Pt198 and Cr54+Pt196 reactions (both forming No250) were measured and subtracted, giving new information on fast quasifission mass evolution, and the first direct determination of the dependence of sticking times on angular momentum. TDHF calculations showed good agreement with average experimental values, but experimental mass distributions unexpectedly extended to symmetric splits while the peak yield remained close to the initial masses. This implies a strong role of fluctuations in mass division early in the collision, giving insights into the transition from fast energy dissipative deep-inelastic collisions to quasifission.

AB - Mass and angle distributions for the Cr52+Pt198 and Cr54+Pt196 reactions (both forming No250) were measured and subtracted, giving new information on fast quasifission mass evolution, and the first direct determination of the dependence of sticking times on angular momentum. TDHF calculations showed good agreement with average experimental values, but experimental mass distributions unexpectedly extended to symmetric splits while the peak yield remained close to the initial masses. This implies a strong role of fluctuations in mass division early in the collision, giving insights into the transition from fast energy dissipative deep-inelastic collisions to quasifission.

UR - http://www.scopus.com/inward/record.url?scp=85121214580&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.127.222501

DO - 10.1103/PhysRevLett.127.222501

M3 - Article

SN - 0031-9007

VL - 127

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

M1 - 222501

ER -

Mass Equilibration and Fluctuations in the Angular Momentum Dependent Dynamics of Heavy Element Synthesis Reactions

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