Evidence for thermal equilibration in multifragmentation reactions probed with bremsstrahlung photons

DG d'Enterria; L Aphecetche; A Chbihi; H Delagrange; J Diaz; M J van Goethem; M Hoefman; A Kugler; H Löhner; G Martinez; MJ Mora; R Ortega; RW Ostendorf; S Schadmand; Y Schutz; R H Siemssen; D Stracener; P Tlusty; R Turrisi; M Volkerts; V Wagner; HW Wilschut; N Yahlali; D. d' Enterria

doi:10.1103/PhysRevLett.87.022701

Evidence for thermal equilibration in multifragmentation reactions probed with bremsstrahlung photons

DG d'Enterria^*
, L Aphecetche
, A Chbihi
, H Delagrange
, J Diaz
, M J van Goethem
, M Hoefman
, A Kugler
, H Löhner
, G Martinez
, MJ Mora
, R Ortega
, RW Ostendorf
, S Schadmand
, Y Schutz
, R H Siemssen
, D Stracener
, P Tlusty
, R Turrisi
, M Volkerts

V Wagner, HW Wilschut, N Yahlali, D. d' Enterria

^*Corresponding author for this work

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

21 Citations (Scopus)

Abstract

The production of nuclear bremsstrahlung photons (E-gamma > 30 MeV) has been studied in inclusive and exclusive measurements in four heavy-ion reactions at 60A MeV. The measured photon spectra, angular distributions, and multiplicities indicate that a significant fraction of the hard photons is emitted in secondary nucleon-nucleon collisions from a thermally equilibrated system. The observation of the thermal component in multifragment Ar-36 + Au-197 reactions suggests that the breakup of the thermalized source produced in this system occurs on a rather long time scale.

Original language	English
Article number	022701
Number of pages	4
Journal	Physical Review Letters
Volume	87
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.87.022701
Publication status	Published - 9-Jul-2001

Keywords

HEAVY-ION COLLISIONS
NUCLEAR-MATTER
PARTICLES
TAPS
HOT

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Evidence for thermal equilibration in multifragmentation reactions
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d'Enterria, DG., Aphecetche, L., Chbihi, A., Delagrange, H., Diaz, J., van Goethem, M. J., Hoefman, M., Kugler, A., Löhner, H., Martinez, G., Mora, MJ., Ortega, R., Ostendorf, RW., Schadmand, S., Schutz, Y., Siemssen, R. H., Stracener, D., Tlusty, P., Turrisi, R., ... d' Enterria, D. (2001). Evidence for thermal equilibration in multifragmentation reactions probed with bremsstrahlung photons. Physical Review Letters, 87(2), Article 022701. https://doi.org/10.1103/PhysRevLett.87.022701

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title = "Evidence for thermal equilibration in multifragmentation reactions probed with bremsstrahlung photons",

abstract = "The production of nuclear bremsstrahlung photons (E-gamma > 30 MeV) has been studied in inclusive and exclusive measurements in four heavy-ion reactions at 60A MeV. The measured photon spectra, angular distributions, and multiplicities indicate that a significant fraction of the hard photons is emitted in secondary nucleon-nucleon collisions from a thermally equilibrated system. The observation of the thermal component in multifragment Ar-36 + Au-197 reactions suggests that the breakup of the thermalized source produced in this system occurs on a rather long time scale.",

keywords = "HEAVY-ION COLLISIONS, NUCLEAR-MATTER, PARTICLES, TAPS, HOT",

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d'Enterria, DG, Aphecetche, L, Chbihi, A, Delagrange, H, Diaz, J, van Goethem, MJ, Hoefman, M, Kugler, A, Löhner, H, Martinez, G, Mora, MJ, Ortega, R, Ostendorf, RW, Schadmand, S, Schutz, Y, Siemssen, RH, Stracener, D, Tlusty, P, Turrisi, R, Volkerts, M, Wagner, V, Wilschut, HW, Yahlali, N & d' Enterria, D 2001, 'Evidence for thermal equilibration in multifragmentation reactions probed with bremsstrahlung photons', Physical Review Letters, vol. 87, no. 2, 022701. https://doi.org/10.1103/PhysRevLett.87.022701

TY - JOUR

T1 - Evidence for thermal equilibration in multifragmentation reactions probed with bremsstrahlung photons

AU - d'Enterria, DG

AU - Aphecetche, L

AU - Chbihi, A

AU - Delagrange, H

AU - Diaz, J

AU - van Goethem, M J

AU - Hoefman, M

AU - Kugler, A

AU - Löhner, H

AU - Martinez, G

AU - Mora, MJ

AU - Ortega, R

AU - Ostendorf, RW

AU - Schadmand, S

AU - Schutz, Y

AU - Siemssen, R H

AU - Stracener, D

AU - Tlusty, P

AU - Turrisi, R

AU - Volkerts, M

AU - Wagner, V

AU - Wilschut, HW

AU - Yahlali, N

AU - d' Enterria, D.

PY - 2001/7/9

Y1 - 2001/7/9

N2 - The production of nuclear bremsstrahlung photons (E-gamma > 30 MeV) has been studied in inclusive and exclusive measurements in four heavy-ion reactions at 60A MeV. The measured photon spectra, angular distributions, and multiplicities indicate that a significant fraction of the hard photons is emitted in secondary nucleon-nucleon collisions from a thermally equilibrated system. The observation of the thermal component in multifragment Ar-36 + Au-197 reactions suggests that the breakup of the thermalized source produced in this system occurs on a rather long time scale.

AB - The production of nuclear bremsstrahlung photons (E-gamma > 30 MeV) has been studied in inclusive and exclusive measurements in four heavy-ion reactions at 60A MeV. The measured photon spectra, angular distributions, and multiplicities indicate that a significant fraction of the hard photons is emitted in secondary nucleon-nucleon collisions from a thermally equilibrated system. The observation of the thermal component in multifragment Ar-36 + Au-197 reactions suggests that the breakup of the thermalized source produced in this system occurs on a rather long time scale.

KW - HEAVY-ION COLLISIONS

KW - NUCLEAR-MATTER

KW - PARTICLES

KW - TAPS

KW - HOT

U2 - 10.1103/PhysRevLett.87.022701

DO - 10.1103/PhysRevLett.87.022701

M3 - Article

SN - 0031-9007

VL - 87

JO - Physical Review Letters

JF - Physical Review Letters

IS - 2

M1 - 022701

ER -

Evidence for thermal equilibration in multifragmentation reactions probed with bremsstrahlung photons

Abstract

Keywords

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