Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon

B. B. Back, R. R. Betts, J. Chang, W. C. Chang, C. Y. Chi, Y. Y. Chu, J. B. Cumming, J. C. Dunlop, W. Eldredge, S. Y. Fung, R. Ganz, E. Garcia, A. Gillitzer, G. Heintzelman, W. F. Henning, D. J. Hofman, B. Holzman, Ju Hwan Kang, E. J. Kim, S. Y. Kim & 19 others Youngil Kwon, D. McLeod, A. C. Mignerey, M. Moulson, V. Nanal, C. A. Ogilvie, R. Pak, A. Ruangma, D. E. Russ, R. K. Seto, P. J. Stanskas, G. S.F. Stephans, H. Q. Wang, F. L.H. Wolfs, A. H. Wuosmaa, H. Xiang, G. H. Xu, H. B. Yao, C. M. Zou

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Transverse mass spectra of protons emitted in Au + Au collisions at beam energies of 6, 8, and 10.8 GeV/ nucleon have been measured as a function of collision centrality over a rapidity range 0.5<y lab <1.5. The spectra are well reproduced by Boltzmann distributions over the measured transverse mass region, which allows for extrapolation of the data to derive the rapidity density and apparent temperature of the emitting source. The shapes of the rapidity distributions suggest significant transparency or substantial longitudinal expansion in even the most central collisions at all three beam energies. The data are analyzed within a simple thermal source plus longitudinal expansion model.

Original languageEnglish
Pages (from-to)549011-5490110
Number of pages4941100
JournalPhysical Review C - Nuclear Physics
Volume66
Issue number5
Publication statusPublished - 2002 Nov 1

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collisions
protons
expansion
Boltzmann distribution
mass spectra
extrapolation
energy
temperature

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Back, B. B., Betts, R. R., Chang, J., Chang, W. C., Chi, C. Y., Chu, Y. Y., ... Zou, C. M. (2002). Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon. Physical Review C - Nuclear Physics, 66(5), 549011-5490110.
Back, B. B. ; Betts, R. R. ; Chang, J. ; Chang, W. C. ; Chi, C. Y. ; Chu, Y. Y. ; Cumming, J. B. ; Dunlop, J. C. ; Eldredge, W. ; Fung, S. Y. ; Ganz, R. ; Garcia, E. ; Gillitzer, A. ; Heintzelman, G. ; Henning, W. F. ; Hofman, D. J. ; Holzman, B. ; Kang, Ju Hwan ; Kim, E. J. ; Kim, S. Y. ; Kwon, Youngil ; McLeod, D. ; Mignerey, A. C. ; Moulson, M. ; Nanal, V. ; Ogilvie, C. A. ; Pak, R. ; Ruangma, A. ; Russ, D. E. ; Seto, R. K. ; Stanskas, P. J. ; Stephans, G. S.F. ; Wang, H. Q. ; Wolfs, F. L.H. ; Wuosmaa, A. H. ; Xiang, H. ; Xu, G. H. ; Yao, H. B. ; Zou, C. M. / Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon. In: Physical Review C - Nuclear Physics. 2002 ; Vol. 66, No. 5. pp. 549011-5490110.
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title = "Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon",
abstract = "Transverse mass spectra of protons emitted in Au + Au collisions at beam energies of 6, 8, and 10.8 GeV/ nucleon have been measured as a function of collision centrality over a rapidity range 0.5<y lab <1.5. The spectra are well reproduced by Boltzmann distributions over the measured transverse mass region, which allows for extrapolation of the data to derive the rapidity density and apparent temperature of the emitting source. The shapes of the rapidity distributions suggest significant transparency or substantial longitudinal expansion in even the most central collisions at all three beam energies. The data are analyzed within a simple thermal source plus longitudinal expansion model.",
author = "Back, {B. B.} and Betts, {R. R.} and J. Chang and Chang, {W. C.} and Chi, {C. Y.} and Chu, {Y. Y.} and Cumming, {J. B.} and Dunlop, {J. C.} and W. Eldredge and Fung, {S. Y.} and R. Ganz and E. Garcia and A. Gillitzer and G. Heintzelman and Henning, {W. F.} and Hofman, {D. J.} and B. Holzman and Kang, {Ju Hwan} and Kim, {E. J.} and Kim, {S. Y.} and Youngil Kwon and D. McLeod and Mignerey, {A. C.} and M. Moulson and V. Nanal and Ogilvie, {C. A.} and R. Pak and A. Ruangma and Russ, {D. E.} and Seto, {R. K.} and Stanskas, {P. J.} and Stephans, {G. S.F.} and Wang, {H. Q.} and Wolfs, {F. L.H.} and Wuosmaa, {A. H.} and H. Xiang and Xu, {G. H.} and Yao, {H. B.} and Zou, {C. M.}",
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Back, BB, Betts, RR, Chang, J, Chang, WC, Chi, CY, Chu, YY, Cumming, JB, Dunlop, JC, Eldredge, W, Fung, SY, Ganz, R, Garcia, E, Gillitzer, A, Heintzelman, G, Henning, WF, Hofman, DJ, Holzman, B, Kang, JH, Kim, EJ, Kim, SY, Kwon, Y, McLeod, D, Mignerey, AC, Moulson, M, Nanal, V, Ogilvie, CA, Pak, R, Ruangma, A, Russ, DE, Seto, RK, Stanskas, PJ, Stephans, GSF, Wang, HQ, Wolfs, FLH, Wuosmaa, AH, Xiang, H, Xu, GH, Yao, HB & Zou, CM 2002, 'Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon', Physical Review C - Nuclear Physics, vol. 66, no. 5, pp. 549011-5490110.

Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon. / Back, B. B.; Betts, R. R.; Chang, J.; Chang, W. C.; Chi, C. Y.; Chu, Y. Y.; Cumming, J. B.; Dunlop, J. C.; Eldredge, W.; Fung, S. Y.; Ganz, R.; Garcia, E.; Gillitzer, A.; Heintzelman, G.; Henning, W. F.; Hofman, D. J.; Holzman, B.; Kang, Ju Hwan; Kim, E. J.; Kim, S. Y.; Kwon, Youngil; McLeod, D.; Mignerey, A. C.; Moulson, M.; Nanal, V.; Ogilvie, C. A.; Pak, R.; Ruangma, A.; Russ, D. E.; Seto, R. K.; Stanskas, P. J.; Stephans, G. S.F.; Wang, H. Q.; Wolfs, F. L.H.; Wuosmaa, A. H.; Xiang, H.; Xu, G. H.; Yao, H. B.; Zou, C. M.

In: Physical Review C - Nuclear Physics, Vol. 66, No. 5, 01.11.2002, p. 549011-5490110.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon

AU - Back, B. B.

AU - Betts, R. R.

AU - Chang, J.

AU - Chang, W. C.

AU - Chi, C. Y.

AU - Chu, Y. Y.

AU - Cumming, J. B.

AU - Dunlop, J. C.

AU - Eldredge, W.

AU - Fung, S. Y.

AU - Ganz, R.

AU - Garcia, E.

AU - Gillitzer, A.

AU - Heintzelman, G.

AU - Henning, W. F.

AU - Hofman, D. J.

AU - Holzman, B.

AU - Kang, Ju Hwan

AU - Kim, E. J.

AU - Kim, S. Y.

AU - Kwon, Youngil

AU - McLeod, D.

AU - Mignerey, A. C.

AU - Moulson, M.

AU - Nanal, V.

AU - Ogilvie, C. A.

AU - Pak, R.

AU - Ruangma, A.

AU - Russ, D. E.

AU - Seto, R. K.

AU - Stanskas, P. J.

AU - Stephans, G. S.F.

AU - Wang, H. Q.

AU - Wolfs, F. L.H.

AU - Wuosmaa, A. H.

AU - Xiang, H.

AU - Xu, G. H.

AU - Yao, H. B.

AU - Zou, C. M.

PY - 2002/11/1

Y1 - 2002/11/1

N2 - Transverse mass spectra of protons emitted in Au + Au collisions at beam energies of 6, 8, and 10.8 GeV/ nucleon have been measured as a function of collision centrality over a rapidity range 0.5<y lab <1.5. The spectra are well reproduced by Boltzmann distributions over the measured transverse mass region, which allows for extrapolation of the data to derive the rapidity density and apparent temperature of the emitting source. The shapes of the rapidity distributions suggest significant transparency or substantial longitudinal expansion in even the most central collisions at all three beam energies. The data are analyzed within a simple thermal source plus longitudinal expansion model.

AB - Transverse mass spectra of protons emitted in Au + Au collisions at beam energies of 6, 8, and 10.8 GeV/ nucleon have been measured as a function of collision centrality over a rapidity range 0.5<y lab <1.5. The spectra are well reproduced by Boltzmann distributions over the measured transverse mass region, which allows for extrapolation of the data to derive the rapidity density and apparent temperature of the emitting source. The shapes of the rapidity distributions suggest significant transparency or substantial longitudinal expansion in even the most central collisions at all three beam energies. The data are analyzed within a simple thermal source plus longitudinal expansion model.

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UR - http://www.scopus.com/inward/citedby.url?scp=0036876190&partnerID=8YFLogxK

M3 - Article

VL - 66

SP - 549011

EP - 5490110

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 5

ER -

Back BB, Betts RR, Chang J, Chang WC, Chi CY, Chu YY et al. Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon. Physical Review C - Nuclear Physics. 2002 Nov 1;66(5):549011-5490110.