Isotropic emission components in splintering central collisions: (17-115)A MeV 40Ar + Cu, Ag, Au

Rulin Sun; E. Colin; N. N. Ajitanand; John M. Alexander; M. A. Barton; P. A. DeYoung; K. L. Drake; A. Elmaani; C. J. Gelderloos; E. E. Gualtieri; D. Guinet; S. Hannuschke; J. A. Jaasma; L. Kowalski; Roy A. Lacey; J. Lauret; E. Norbeck; R. Pak; G. F. Peaslee; M. Stern; N. T.B. Stone; S. D. Sundbeck; A. M. Vander Molen; G. D. Westfall; L. B. Yang; J. Yee

doi:10.1103/PhysRevC.61.061601

Isotropic emission components in splintering central collisions: (17-115)A MeV ⁴⁰Ar + Cu, Ag, Au

Rulin Sun
, E. Colin
, N. N. Ajitanand
, John M. Alexander
, M. A. Barton
, P. A. DeYoung
, K. L. Drake
, A. Elmaani
, C. J. Gelderloos
, E. E. Gualtieri
, D. Guinet
, S. Hannuschke
, J. A. Jaasma
, L. Kowalski
, Roy A. Lacey
, J. Lauret
, E. Norbeck
, R. Pak
, G. F. Peaslee
, M. Stern

N. T.B. Stone, S. D. Sundbeck, A. M. Vander Molen, G. D. Westfall, L. B. Yang, J. Yee

Chemistry

Stony Brook University
Institut de Physique des 2 Infinis de Lyon
Hope College
Pacific Northwest National Laboratory
University of Colorado Boulder
Boeing
Michigan State University
Montclair State University
University of Iowa

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

11 Scopus citations

Abstract

The ensemble of charged isotropically emitted ejectiles is studied for central collisions of (17-115)A MeV ⁴⁰Ar + Cu, Ag, Au. Measurements of average multiplicities, spectral slopes, and masses of the heaviest fragments are compared to statistical models for multifragmentation or sequential evaporation. The multifragmentation models predict much more complete nuclear disassembly than is observed. The evaporation model reproduces the data much more closely except for the spectra of Z = 1 ejectiles. The kinetic energies of Z = 1 and 2 ejectiles are much less than found for 1A GeV ¹⁹⁷Au+ ¹²C for similar energy depositions. Entrance channel dynamics seem to affect the isotropic emission ensembles, often taken to define an equilibrated emission source.

Original language	English
Article number	061601
Pages (from-to)	616011-616014
Number of pages	4
Journal	Physical Review C - Nuclear Physics
Volume	61
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.61.061601
State	Published - Jun 2000

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Sun, R., Colin, E., Ajitanand, N. N., Alexander, J. M., Barton, M. A., DeYoung, P. A., Drake, K. L., Elmaani, A., Gelderloos, C. J., Gualtieri, E. E., Guinet, D., Hannuschke, S., Jaasma, J. A., Kowalski, L., Lacey, R. A., Lauret, J., Norbeck, E., Pak, R., Peaslee, G. F., ... Yee, J. (2000). Isotropic emission components in splintering central collisions: (17-115)A MeV ⁴⁰Ar + Cu, Ag, Au. Physical Review C - Nuclear Physics, 61(6), 616011-616014. Article 061601. https://doi.org/10.1103/PhysRevC.61.061601

@article{253e261db0b64192993cc50dc908c148,

title = "Isotropic emission components in splintering central collisions: (17-115)A MeV 40Ar + Cu, Ag, Au",

abstract = "The ensemble of charged isotropically emitted ejectiles is studied for central collisions of (17-115)A MeV 40Ar + Cu, Ag, Au. Measurements of average multiplicities, spectral slopes, and masses of the heaviest fragments are compared to statistical models for multifragmentation or sequential evaporation. The multifragmentation models predict much more complete nuclear disassembly than is observed. The evaporation model reproduces the data much more closely except for the spectra of Z = 1 ejectiles. The kinetic energies of Z = 1 and 2 ejectiles are much less than found for 1A GeV 197Au+ 12C for similar energy depositions. Entrance channel dynamics seem to affect the isotropic emission ensembles, often taken to define an equilibrated emission source.",

author = "Rulin Sun and E. Colin and Ajitanand, \{N. N.\} and Alexander, \{John M.\} and Barton, \{M. A.\} and DeYoung, \{P. A.\} and Drake, \{K. L.\} and A. Elmaani and Gelderloos, \{C. J.\} and Gualtieri, \{E. E.\} and D. Guinet and S. Hannuschke and Jaasma, \{J. A.\} and L. Kowalski and Lacey, \{Roy A.\} and J. Lauret and E. Norbeck and R. Pak and Peaslee, \{G. F.\} and M. Stern and Stone, \{N. T.B.\} and Sundbeck, \{S. D.\} and \{Vander Molen\}, \{A. M.\} and Westfall, \{G. D.\} and Yang, \{L. B.\} and J. Yee",

year = "2000",

month = jun,

doi = "10.1103/PhysRevC.61.061601",

language = "English",

volume = "61",

pages = "616011--616014",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "6",

}

Sun, R, Colin, E, Ajitanand, NN, Alexander, JM, Barton, MA, DeYoung, PA, Drake, KL, Elmaani, A, Gelderloos, CJ, Gualtieri, EE, Guinet, D, Hannuschke, S, Jaasma, JA, Kowalski, L, Lacey, RA, Lauret, J, Norbeck, E, Pak, R, Peaslee, GF, Stern, M, Stone, NTB, Sundbeck, SD, Vander Molen, AM, Westfall, GD, Yang, LB & Yee, J 2000, 'Isotropic emission components in splintering central collisions: (17-115)A MeV ⁴⁰Ar + Cu, Ag, Au', Physical Review C - Nuclear Physics, vol. 61, no. 6, 061601, pp. 616011-616014. https://doi.org/10.1103/PhysRevC.61.061601

TY - JOUR

T1 - Isotropic emission components in splintering central collisions

T2 - (17-115)A MeV 40Ar + Cu, Ag, Au

AU - Sun, Rulin

AU - Colin, E.

AU - Ajitanand, N. N.

AU - Alexander, John M.

AU - Barton, M. A.

AU - DeYoung, P. A.

AU - Drake, K. L.

AU - Elmaani, A.

AU - Gelderloos, C. J.

AU - Gualtieri, E. E.

AU - Guinet, D.

AU - Hannuschke, S.

AU - Jaasma, J. A.

AU - Kowalski, L.

AU - Lacey, Roy A.

AU - Lauret, J.

AU - Norbeck, E.

AU - Pak, R.

AU - Peaslee, G. F.

AU - Stern, M.

AU - Stone, N. T.B.

AU - Sundbeck, S. D.

AU - Vander Molen, A. M.

AU - Westfall, G. D.

AU - Yang, L. B.

AU - Yee, J.

PY - 2000/6

Y1 - 2000/6

N2 - The ensemble of charged isotropically emitted ejectiles is studied for central collisions of (17-115)A MeV 40Ar + Cu, Ag, Au. Measurements of average multiplicities, spectral slopes, and masses of the heaviest fragments are compared to statistical models for multifragmentation or sequential evaporation. The multifragmentation models predict much more complete nuclear disassembly than is observed. The evaporation model reproduces the data much more closely except for the spectra of Z = 1 ejectiles. The kinetic energies of Z = 1 and 2 ejectiles are much less than found for 1A GeV 197Au+ 12C for similar energy depositions. Entrance channel dynamics seem to affect the isotropic emission ensembles, often taken to define an equilibrated emission source.

AB - The ensemble of charged isotropically emitted ejectiles is studied for central collisions of (17-115)A MeV 40Ar + Cu, Ag, Au. Measurements of average multiplicities, spectral slopes, and masses of the heaviest fragments are compared to statistical models for multifragmentation or sequential evaporation. The multifragmentation models predict much more complete nuclear disassembly than is observed. The evaporation model reproduces the data much more closely except for the spectra of Z = 1 ejectiles. The kinetic energies of Z = 1 and 2 ejectiles are much less than found for 1A GeV 197Au+ 12C for similar energy depositions. Entrance channel dynamics seem to affect the isotropic emission ensembles, often taken to define an equilibrated emission source.

UR - https://www.scopus.com/pages/publications/12944260635

U2 - 10.1103/PhysRevC.61.061601

DO - 10.1103/PhysRevC.61.061601

M3 - Article

AN - SCOPUS:12944260635

SN - 0556-2813

VL - 61

SP - 616011

EP - 616014

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

M1 - 061601

ER -

Isotropic emission components in splintering central collisions: (17-115)A MeV ⁴⁰Ar + Cu, Ag, Au

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