Signals for a transition from surface to bulk emission in thermal multifragmentation

L. Beaulieu; T. Lefort; K. Kwiatkowski; R. T. de Souza; W. c. Hsi; L. Pienkowski; B. Back; D. S. Bracken; H. Breuer; E. Cornell; F. Gimeno-Nogues; D. S. Ginger; S. Gushue; R. G. Korteling; R. Laforest; E. Martin; K. B. Morley; E. Ramakrishnan; L. P. Remsberg; D. Rowland; A. Ruangma; V. E. Viola; G. Wang; E. Winchester; S. J. Yennello

doi:10.1103/PhysRevLett.84.5971

Signals for a transition from surface to bulk emission in thermal multifragmentation

L. Beaulieu
, T. Lefort
, K. Kwiatkowski
, R. T. de Souza
, W. c. Hsi
, L. Pienkowski
, B. Back
, D. S. Bracken
, H. Breuer
, E. Cornell
, F. Gimeno-Nogues
, D. S. Ginger
, S. Gushue
, R. G. Korteling
, R. Laforest
, E. Martin
, K. B. Morley
, E. Ramakrishnan
, L. P. Remsberg
, D. Rowland

A. Ruangma, V. E. Viola, G. Wang, E. Winchester, S. J. Yennello

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

92 Scopus citations

Abstract

Excitation-energy-gated two-fragment correlation functions have been studied between E*/A = (2-9) A MeV for equilibriumlike sources formed in 8–10 GeV/c π⁻ and p+¹⁹⁷ Au reactions. Comparison with an N-body Coulomb-trajectory code shows an order of magnitude decrease in the fragment emission time in the interval E*/A =(2-5) A MeV, followed by a nearly constant breakup time at higher excitation energy. The decrease in emission time is strongly correlated with the onset of multifragmentation and thermally induced radial expansion, consistent with a transition from surface-dominated to bulk emission expected for spinodal decomposition.

Original language	English
Pages (from-to)	5971-5974
Number of pages	4
Journal	Physical Review Letters
Volume	84
Issue number	26
DOIs	https://doi.org/10.1103/PhysRevLett.84.5971
State	Published - 2000

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Beaulieu, L., Lefort, T., Kwiatkowski, K., de Souza, R. T., Hsi, W. C., Pienkowski, L., Back, B., Bracken, D. S., Breuer, H., Cornell, E., Gimeno-Nogues, F., Ginger, D. S., Gushue, S., Korteling, R. G., Laforest, R., Martin, E., Morley, K. B., Ramakrishnan, E., Remsberg, L. P., ... Yennello, S. J. (2000). Signals for a transition from surface to bulk emission in thermal multifragmentation. Physical Review Letters, 84(26), 5971-5974. https://doi.org/10.1103/PhysRevLett.84.5971

@article{707cd9a24a0446259e031b517eb3b83f,

title = "Signals for a transition from surface to bulk emission in thermal multifragmentation",

abstract = "Excitation-energy-gated two-fragment correlation functions have been studied between E*/A = (2-9) A MeV for equilibriumlike sources formed in 8–10 GeV/c π− and p+197 Au reactions. Comparison with an N-body Coulomb-trajectory code shows an order of magnitude decrease in the fragment emission time in the interval E*/A =(2-5) A MeV, followed by a nearly constant breakup time at higher excitation energy. The decrease in emission time is strongly correlated with the onset of multifragmentation and thermally induced radial expansion, consistent with a transition from surface-dominated to bulk emission expected for spinodal decomposition.",

author = "L. Beaulieu and T. Lefort and K. Kwiatkowski and \{de Souza\}, \{R. T.\} and Hsi, \{W. c.\} and L. Pienkowski and B. Back and Bracken, \{D. S.\} and H. Breuer and E. Cornell and F. Gimeno-Nogues and Ginger, \{D. S.\} and S. Gushue and Korteling, \{R. G.\} and R. Laforest and E. Martin and Morley, \{K. B.\} and E. Ramakrishnan and Remsberg, \{L. P.\} and D. Rowland and A. Ruangma and Viola, \{V. E.\} and G. Wang and E. Winchester and Yennello, \{S. J.\}",

year = "2000",

doi = "10.1103/PhysRevLett.84.5971",

language = "English",

volume = "84",

pages = "5971--5974",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "26",

}

Beaulieu, L, Lefort, T, Kwiatkowski, K, de Souza, RT, Hsi, WC, Pienkowski, L, Back, B, Bracken, DS, Breuer, H, Cornell, E, Gimeno-Nogues, F, Ginger, DS, Gushue, S, Korteling, RG, Laforest, R, Martin, E, Morley, KB, Ramakrishnan, E, Remsberg, LP, Rowland, D, Ruangma, A, Viola, VE, Wang, G, Winchester, E & Yennello, SJ 2000, 'Signals for a transition from surface to bulk emission in thermal multifragmentation', Physical Review Letters, vol. 84, no. 26, pp. 5971-5974. https://doi.org/10.1103/PhysRevLett.84.5971

TY - JOUR

T1 - Signals for a transition from surface to bulk emission in thermal multifragmentation

AU - Beaulieu, L.

AU - Lefort, T.

AU - Kwiatkowski, K.

AU - de Souza, R. T.

AU - Hsi, W. c.

AU - Pienkowski, L.

AU - Back, B.

AU - Bracken, D. S.

AU - Breuer, H.

AU - Cornell, E.

AU - Gimeno-Nogues, F.

AU - Ginger, D. S.

AU - Gushue, S.

AU - Korteling, R. G.

AU - Laforest, R.

AU - Martin, E.

AU - Morley, K. B.

AU - Ramakrishnan, E.

AU - Remsberg, L. P.

AU - Rowland, D.

AU - Ruangma, A.

AU - Viola, V. E.

AU - Wang, G.

AU - Winchester, E.

AU - Yennello, S. J.

PY - 2000

Y1 - 2000

N2 - Excitation-energy-gated two-fragment correlation functions have been studied between E*/A = (2-9) A MeV for equilibriumlike sources formed in 8–10 GeV/c π− and p+197 Au reactions. Comparison with an N-body Coulomb-trajectory code shows an order of magnitude decrease in the fragment emission time in the interval E*/A =(2-5) A MeV, followed by a nearly constant breakup time at higher excitation energy. The decrease in emission time is strongly correlated with the onset of multifragmentation and thermally induced radial expansion, consistent with a transition from surface-dominated to bulk emission expected for spinodal decomposition.

AB - Excitation-energy-gated two-fragment correlation functions have been studied between E*/A = (2-9) A MeV for equilibriumlike sources formed in 8–10 GeV/c π− and p+197 Au reactions. Comparison with an N-body Coulomb-trajectory code shows an order of magnitude decrease in the fragment emission time in the interval E*/A =(2-5) A MeV, followed by a nearly constant breakup time at higher excitation energy. The decrease in emission time is strongly correlated with the onset of multifragmentation and thermally induced radial expansion, consistent with a transition from surface-dominated to bulk emission expected for spinodal decomposition.

UR - https://www.scopus.com/pages/publications/0342520904

U2 - 10.1103/PhysRevLett.84.5971

DO - 10.1103/PhysRevLett.84.5971

M3 - Article

C2 - 10991101

AN - SCOPUS:0342520904

SN - 0031-9007

VL - 84

SP - 5971

EP - 5974

JO - Physical Review Letters

JF - Physical Review Letters

IS - 26

ER -

Signals for a transition from surface to bulk emission in thermal multifragmentation

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