Light fragment yields from central Au+Au collisions at [Formula Presented]

J. Barrette, R. Bellwied, S. Bennett, R. Bersch, P. Braun-Munzinger, W. C. Chang, W. E. Cleland, M. Clemen, J. D. Cole, T. M. Cormier, Y. Dai, G. David, J. Dee, O. Dietzsch, M. W. Drigert, K. Filimonov, J. R. Hall, T. K. Hemmick, N. Herrmann, Byungsik Hong & 34 others C. L. Jiang, S. C. Johnson, Y. Kwon, R. Lacasse, Q. Li, T. W. Ludlam, S. McCorkle, S. K. Mark, R. Matheus, D. Miśkowiec, E. O’Brien, S. Panitkin, T. Piazza, M. Pollack, C. Pruneau, Y. J. Qi, M. N. Rao, E. L. Reber, M. Rosati, N. C. daSilva, S. Sedykh, J. Sheen, U. Sonnadara, J. Stachel, H. Takai, E. M. Takagui, S. Voloshin, T. Vongpaseuth, J. P. Wessels, C. L. Woody, N. Xu, Y. Zhang, Z. Zhang, C. Zou

Research output: Contribution to journalArticle

Abstract

Inclusive double differential multiplicities of deuterons, [Formula Presented] and [Formula Presented] measured by E877 for [Formula Presented] Au+Au collisions at the Brookhaven’s Alternating Gradient Synchrotron (AGS) are presented. Light fragments at beam rapidity are measured for the first time at AGS energies. Beam rapidity deuteron and [Formula Presented] yields and transverse slope parameters are found to be strongly dependent on the impact parameter, and the shape of the deuteron spectra is not consistent with that expected for a simple thermal distribution. The deuteron yields relative to proton yields are analyzed in terms of a simple coalescence model. While results indicate an increase in source size compared to collisions of lighter systems at the same energy, they are inconsistent with a simple coalescence model reflected by a rapidity dependence of the coalescence parameter [Formula Presented] A new approach utilizing an expanding thermalized source combined with a coalescence code is developed for studying deuteron formation in heavy-ion collisions. The strong dependence of deuteron yields on collective motion implies that deuteron yields relative to those of protons can be used for constraining source parameters.

Original languageEnglish
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume61
Issue number4
DOIs
Publication statusPublished - 2000 Jan 1
Externally publishedYes

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deuterons
fragments
collisions
coalescing
synchrotrons
gradients
protons
ionic collisions
slopes
energy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Barrette, J., Bellwied, R., Bennett, S., Bersch, R., Braun-Munzinger, P., Chang, W. C., ... Zou, C. (2000). Light fragment yields from central Au+Au collisions at [Formula Presented]. Physical Review C - Nuclear Physics, 61(4). https://doi.org/10.1103/PhysRevC.61.044906

Light fragment yields from central Au+Au collisions at [Formula Presented]. / Barrette, J.; Bellwied, R.; Bennett, S.; Bersch, R.; Braun-Munzinger, P.; Chang, W. C.; Cleland, W. E.; Clemen, M.; Cole, J. D.; Cormier, T. M.; Dai, Y.; David, G.; Dee, J.; Dietzsch, O.; Drigert, M. W.; Filimonov, K.; Hall, J. R.; Hemmick, T. K.; Herrmann, N.; Hong, Byungsik; Jiang, C. L.; Johnson, S. C.; Kwon, Y.; Lacasse, R.; Li, Q.; Ludlam, T. W.; McCorkle, S.; Mark, S. K.; Matheus, R.; Miśkowiec, D.; O’Brien, E.; Panitkin, S.; Piazza, T.; Pollack, M.; Pruneau, C.; Qi, Y. J.; Rao, M. N.; Reber, E. L.; Rosati, M.; daSilva, N. C.; Sedykh, S.; Sheen, J.; Sonnadara, U.; Stachel, J.; Takai, H.; Takagui, E. M.; Voloshin, S.; Vongpaseuth, T.; Wessels, J. P.; Woody, C. L.; Xu, N.; Zhang, Y.; Zhang, Z.; Zou, C.

In: Physical Review C - Nuclear Physics, Vol. 61, No. 4, 01.01.2000.

Research output: Contribution to journalArticle

Barrette, J, Bellwied, R, Bennett, S, Bersch, R, Braun-Munzinger, P, Chang, WC, Cleland, WE, Clemen, M, Cole, JD, Cormier, TM, Dai, Y, David, G, Dee, J, Dietzsch, O, Drigert, MW, Filimonov, K, Hall, JR, Hemmick, TK, Herrmann, N, Hong, B, Jiang, CL, Johnson, SC, Kwon, Y, Lacasse, R, Li, Q, Ludlam, TW, McCorkle, S, Mark, SK, Matheus, R, Miśkowiec, D, O’Brien, E, Panitkin, S, Piazza, T, Pollack, M, Pruneau, C, Qi, YJ, Rao, MN, Reber, EL, Rosati, M, daSilva, NC, Sedykh, S, Sheen, J, Sonnadara, U, Stachel, J, Takai, H, Takagui, EM, Voloshin, S, Vongpaseuth, T, Wessels, JP, Woody, CL, Xu, N, Zhang, Y, Zhang, Z & Zou, C 2000, 'Light fragment yields from central Au+Au collisions at [Formula Presented]', Physical Review C - Nuclear Physics, vol. 61, no. 4. https://doi.org/10.1103/PhysRevC.61.044906
Barrette J, Bellwied R, Bennett S, Bersch R, Braun-Munzinger P, Chang WC et al. Light fragment yields from central Au+Au collisions at [Formula Presented]. Physical Review C - Nuclear Physics. 2000 Jan 1;61(4). https://doi.org/10.1103/PhysRevC.61.044906
Barrette, J. ; Bellwied, R. ; Bennett, S. ; Bersch, R. ; Braun-Munzinger, P. ; Chang, W. C. ; Cleland, W. E. ; Clemen, M. ; Cole, J. D. ; Cormier, T. M. ; Dai, Y. ; David, G. ; Dee, J. ; Dietzsch, O. ; Drigert, M. W. ; Filimonov, K. ; Hall, J. R. ; Hemmick, T. K. ; Herrmann, N. ; Hong, Byungsik ; Jiang, C. L. ; Johnson, S. C. ; Kwon, Y. ; Lacasse, R. ; Li, Q. ; Ludlam, T. W. ; McCorkle, S. ; Mark, S. K. ; Matheus, R. ; Miśkowiec, D. ; O’Brien, E. ; Panitkin, S. ; Piazza, T. ; Pollack, M. ; Pruneau, C. ; Qi, Y. J. ; Rao, M. N. ; Reber, E. L. ; Rosati, M. ; daSilva, N. C. ; Sedykh, S. ; Sheen, J. ; Sonnadara, U. ; Stachel, J. ; Takai, H. ; Takagui, E. M. ; Voloshin, S. ; Vongpaseuth, T. ; Wessels, J. P. ; Woody, C. L. ; Xu, N. ; Zhang, Y. ; Zhang, Z. ; Zou, C. / Light fragment yields from central Au+Au collisions at [Formula Presented]. In: Physical Review C - Nuclear Physics. 2000 ; Vol. 61, No. 4.
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abstract = "Inclusive double differential multiplicities of deuterons, [Formula Presented] and [Formula Presented] measured by E877 for [Formula Presented] Au+Au collisions at the Brookhaven’s Alternating Gradient Synchrotron (AGS) are presented. Light fragments at beam rapidity are measured for the first time at AGS energies. Beam rapidity deuteron and [Formula Presented] yields and transverse slope parameters are found to be strongly dependent on the impact parameter, and the shape of the deuteron spectra is not consistent with that expected for a simple thermal distribution. The deuteron yields relative to proton yields are analyzed in terms of a simple coalescence model. While results indicate an increase in source size compared to collisions of lighter systems at the same energy, they are inconsistent with a simple coalescence model reflected by a rapidity dependence of the coalescence parameter [Formula Presented] A new approach utilizing an expanding thermalized source combined with a coalescence code is developed for studying deuteron formation in heavy-ion collisions. The strong dependence of deuteron yields on collective motion implies that deuteron yields relative to those of protons can be used for constraining source parameters.",
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AU - Barrette, J.

AU - Bellwied, R.

AU - Bennett, S.

AU - Bersch, R.

AU - Braun-Munzinger, P.

AU - Chang, W. C.

AU - Cleland, W. E.

AU - Clemen, M.

AU - Cole, J. D.

AU - Cormier, T. M.

AU - Dai, Y.

AU - David, G.

AU - Dee, J.

AU - Dietzsch, O.

AU - Drigert, M. W.

AU - Filimonov, K.

AU - Hall, J. R.

AU - Hemmick, T. K.

AU - Herrmann, N.

AU - Hong, Byungsik

AU - Jiang, C. L.

AU - Johnson, S. C.

AU - Kwon, Y.

AU - Lacasse, R.

AU - Li, Q.

AU - Ludlam, T. W.

AU - McCorkle, S.

AU - Mark, S. K.

AU - Matheus, R.

AU - Miśkowiec, D.

AU - O’Brien, E.

AU - Panitkin, S.

AU - Piazza, T.

AU - Pollack, M.

AU - Pruneau, C.

AU - Qi, Y. J.

AU - Rao, M. N.

AU - Reber, E. L.

AU - Rosati, M.

AU - daSilva, N. C.

AU - Sedykh, S.

AU - Sheen, J.

AU - Sonnadara, U.

AU - Stachel, J.

AU - Takai, H.

AU - Takagui, E. M.

AU - Voloshin, S.

AU - Vongpaseuth, T.

AU - Wessels, J. P.

AU - Woody, C. L.

AU - Xu, N.

AU - Zhang, Y.

AU - Zhang, Z.

AU - Zou, C.

PY - 2000/1/1

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N2 - Inclusive double differential multiplicities of deuterons, [Formula Presented] and [Formula Presented] measured by E877 for [Formula Presented] Au+Au collisions at the Brookhaven’s Alternating Gradient Synchrotron (AGS) are presented. Light fragments at beam rapidity are measured for the first time at AGS energies. Beam rapidity deuteron and [Formula Presented] yields and transverse slope parameters are found to be strongly dependent on the impact parameter, and the shape of the deuteron spectra is not consistent with that expected for a simple thermal distribution. The deuteron yields relative to proton yields are analyzed in terms of a simple coalescence model. While results indicate an increase in source size compared to collisions of lighter systems at the same energy, they are inconsistent with a simple coalescence model reflected by a rapidity dependence of the coalescence parameter [Formula Presented] A new approach utilizing an expanding thermalized source combined with a coalescence code is developed for studying deuteron formation in heavy-ion collisions. The strong dependence of deuteron yields on collective motion implies that deuteron yields relative to those of protons can be used for constraining source parameters.

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