Breakup time scale studied in the 8 GeV/c π- + 197 Au reaction

L. Pienkowski; K. Kwiatkowski; T. Lefort; W. C. Hsi; L. Beaulieu; V. E. Viola; A. Botvina; R. G. Korteling; R. Laforest; E. Martin; E. Ramakrishnan; D. Rowland; A. Ruangma; E. Winchester; S. J. Yennello; B. Back; H. Breuer; S. Gushue; L. P. Remsberg

Breakup time scale studied in the 8 GeV/c π^- + ¹⁹⁷ Au reaction

L. Pienkowski, K. Kwiatkowski, T. Lefort, W. C. Hsi, L. Beaulieu, V. E. Viola, A. Botvina, R. G. Korteling, R. Laforest, E. Martin, E. Ramakrishnan, D. Rowland, A. Ruangma, E. Winchester, S. J. Yennello, B. Back, H. Breuer, S. Gushue, L. P. Remsberg

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21 Scopus citations

Abstract

Experimental data from the reaction of an 8.0 GeV/c π^- beam incident on a ¹⁹⁷Au target have been analyzed in order to investigate the breakup time scale for hot residues. Helium nuclei angular distributions and energy spectra supported by a momentum tensor analysis suggest that at large excitation energy, above 3 - 5 MeV/nucleon, highly excited heavy fragments are separated promptly after the thermalization. A binary fission-like mechanism fits the experimental data at low excitation energies, but seems unable to reproduce the data at excitation energies above 3 - 5 MeV/nucleon.

Original language	English
Pages (from-to)	646061-646068
Number of pages	8
Journal	Physical Review C - Nuclear Physics
Volume	65
Issue number	6
State	Published - Jun 1 2002

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Pienkowski, L., Kwiatkowski, K., Lefort, T., Hsi, W. C., Beaulieu, L., Viola, V. E., Botvina, A., Korteling, R. G., Laforest, R., Martin, E., Ramakrishnan, E., Rowland, D., Ruangma, A., Winchester, E., Yennello, S. J., Back, B., Breuer, H., Gushue, S., & Remsberg, L. P. (2002). Breakup time scale studied in the 8 GeV/c π^- + ¹⁹⁷ Au reaction. Physical Review C - Nuclear Physics, 65(6), 646061-646068.

@article{69103e2b0da34332b764bb052906b0fa,

title = "Breakup time scale studied in the 8 GeV/c π- + 197 Au reaction",

abstract = "Experimental data from the reaction of an 8.0 GeV/c π- beam incident on a 197Au target have been analyzed in order to investigate the breakup time scale for hot residues. Helium nuclei angular distributions and energy spectra supported by a momentum tensor analysis suggest that at large excitation energy, above 3 - 5 MeV/nucleon, highly excited heavy fragments are separated promptly after the thermalization. A binary fission-like mechanism fits the experimental data at low excitation energies, but seems unable to reproduce the data at excitation energies above 3 - 5 MeV/nucleon.",

author = "L. Pienkowski and K. Kwiatkowski and T. Lefort and Hsi, {W. C.} and L. Beaulieu and Viola, {V. E.} and A. Botvina and Korteling, {R. G.} and R. Laforest and E. Martin and E. Ramakrishnan and D. Rowland and A. Ruangma and E. Winchester and Yennello, {S. J.} and B. Back and H. Breuer and S. Gushue and Remsberg, {L. P.}",

year = "2002",

month = jun,

day = "1",

language = "English",

volume = "65",

pages = "646061--646068",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "6",

}

Pienkowski, L, Kwiatkowski, K, Lefort, T, Hsi, WC, Beaulieu, L, Viola, VE, Botvina, A, Korteling, RG, Laforest, R, Martin, E, Ramakrishnan, E, Rowland, D, Ruangma, A, Winchester, E, Yennello, SJ, Back, B, Breuer, H, Gushue, S & Remsberg, LP 2002, 'Breakup time scale studied in the 8 GeV/c π^- + ¹⁹⁷ Au reaction', Physical Review C - Nuclear Physics, vol. 65, no. 6, pp. 646061-646068.

TY - JOUR

T1 - Breakup time scale studied in the 8 GeV/c π- + 197 Au reaction

AU - Pienkowski, L.

AU - Kwiatkowski, K.

AU - Lefort, T.

AU - Hsi, W. C.

AU - Beaulieu, L.

AU - Viola, V. E.

AU - Botvina, A.

AU - Korteling, R. G.

AU - Laforest, R.

AU - Martin, E.

AU - Ramakrishnan, E.

AU - Rowland, D.

AU - Ruangma, A.

AU - Winchester, E.

AU - Yennello, S. J.

AU - Back, B.

AU - Breuer, H.

AU - Gushue, S.

AU - Remsberg, L. P.

PY - 2002/6/1

Y1 - 2002/6/1

N2 - Experimental data from the reaction of an 8.0 GeV/c π- beam incident on a 197Au target have been analyzed in order to investigate the breakup time scale for hot residues. Helium nuclei angular distributions and energy spectra supported by a momentum tensor analysis suggest that at large excitation energy, above 3 - 5 MeV/nucleon, highly excited heavy fragments are separated promptly after the thermalization. A binary fission-like mechanism fits the experimental data at low excitation energies, but seems unable to reproduce the data at excitation energies above 3 - 5 MeV/nucleon.

AB - Experimental data from the reaction of an 8.0 GeV/c π- beam incident on a 197Au target have been analyzed in order to investigate the breakup time scale for hot residues. Helium nuclei angular distributions and energy spectra supported by a momentum tensor analysis suggest that at large excitation energy, above 3 - 5 MeV/nucleon, highly excited heavy fragments are separated promptly after the thermalization. A binary fission-like mechanism fits the experimental data at low excitation energies, but seems unable to reproduce the data at excitation energies above 3 - 5 MeV/nucleon.

UR - http://www.scopus.com/inward/record.url?scp=17644446343&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:17644446343

SN - 0556-2813

VL - 65

SP - 646061

EP - 646068

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

ER -

Breakup time scale studied in the 8 GeV/c π^- + ¹⁹⁷ Au reaction

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