Kaon production in Au+Au collisions at [Formula Presented]

L. Ahle; Y. Akiba; K. Ashktorab; M. D. Baker; D. Beavis; H. C. Britt; J. Chang; C. Chasman; Z. Chen; C. Y. Chi; Y. Y. Chu; V. Cianciolo; B. A. Cole; H. J. Crawford; J. B. Cumming; R. Debbe; J. C. Dunlop; W. Eldredge; J. Engelage; S. Y. Fung; E. Garcia; S. Gushue; H. Hamagaki; L. F. Hansen; R. S. Hayano; G. Heintzelman; E. Judd; J. Kang; E. J. Kim; A. Kumagai; K. Kurita; J. H. Lee; J. Luke; Y. Miake; A. Mignerey; B. Moskowitz; M. Moulson; C. Muentz; S. Nagamiya; M. N. Namboodiri; C. A. Ogilvie; J. Olness; L. P. Remsberg; H. Sako; T. C. Sangster; R. Seto; J. Shea; K. Shigaki; R. Soltz; S. G. Steadman; G. S.F. Stephans; M. J. Tannenbaum; J. H. Thomas; S. Ueno-Hayashi; F. Videbaek; F. Wang; Y. Wu; H. Xiang; G. H. Xu; K. Yagi; H. Yao; W. A. Zajc; F. Zhu

doi:10.1103/PhysRevC.58.3523

Kaon production in Au+Au collisions at [Formula Presented]

L. Ahle, Y. Akiba, K. Ashktorab, M. D. Baker, D. Beavis, H. C. Britt, J. Chang, C. Chasman, Z. Chen, C. Y. Chi, Y. Y. Chu, V. Cianciolo, B. A. Cole, H. J. Crawford, J. B. Cumming, R. Debbe, J. C. Dunlop, W. Eldredge, J. Engelage, S. Y. FungE. Garcia, S. Gushue, H. Hamagaki, L. F. Hansen, R. S. Hayano, G. Heintzelman, E. Judd, J. Kang, E. J. Kim, A. Kumagai, K. Kurita, J. H. Lee, J. Luke, Y. Miake, A. Mignerey, B. Moskowitz, M. Moulson, C. Muentz, S. Nagamiya, M. N. Namboodiri, C. A. Ogilvie, J. Olness, L. P. Remsberg, H. Sako, T. C. Sangster, R. Seto, J. Shea, K. Shigaki, R. Soltz, S. G. Steadman, G. S.F. Stephans, M. J. Tannenbaum, J. H. Thomas, S. Ueno-Hayashi, F. Videbaek, F. Wang, Y. Wu, H. Xiang, G. H. Xu, K. Yagi, H. Yao, W. A. Zajc, F. Zhu

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Abstract

A systematic study of the spectra and yields of [Formula Presented] and [Formula Presented] is reported by experiment E866 as a function of centrality in Au+Au collisions at [Formula Presented] The invariant transverse spectra for both kaon species are well described by exponentials in [Formula Presented] with inverse slope parameters that are largest at midrapidity and which increase with centrality. The inverse slopes of the [Formula Presented] spectra are slightly larger than the inverse slopes of the [Formula Presented] spectra. The kaon rapidity density peaks at midrapidity with the [Formula Presented] distribution wider in rapidity than [Formula Presented] The integrated total yields of [Formula Presented] and [Formula Presented] increase nonlinearly and steadily with the number of projectile participants. The yield per participant for kaons is two to three times larger than the yield from [Formula Presented] collisions. This enhancement suggests that the majority of kaons in central Au+Au reactions are produced in secondary hadronic collisions. There is no evidence for an onset of additional kaon production from a possible small volume of baryon-rich quark-gluon plasma. The differences between [Formula Presented] and [Formula Presented] rapidity distributions and transverse spectra are consistent with a lower phase space for [Formula Presented] production due to a higher energy threshold. These differences also exclude simple thermal models that assume emission from a common equilibrated system.

Original language	English
Pages (from-to)	3523-3538
Number of pages	16
Journal	Physical Review C - Nuclear Physics
Volume	58
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.58.3523
State	Published - 1998
Externally published	Yes

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10.1103/PhysRevC.58.3523

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Ahle, L., Akiba, Y., Ashktorab, K., Baker, M. D., Beavis, D., Britt, H. C., Chang, J., Chasman, C., Chen, Z., Chi, C. Y., Chu, Y. Y., Cianciolo, V., Cole, B. A., Crawford, H. J., Cumming, J. B., Debbe, R., Dunlop, J. C., Eldredge, W., Engelage, J., ... Zhu, F. (1998). Kaon production in Au+Au collisions at [Formula Presented]. Physical Review C - Nuclear Physics, 58(6), 3523-3538. https://doi.org/10.1103/PhysRevC.58.3523

@article{62fba5bc3a6c4d55b06b2b7a1c71fe6c,

title = "Kaon production in Au+Au collisions at [Formula Presented]",

abstract = "A systematic study of the spectra and yields of [Formula Presented] and [Formula Presented] is reported by experiment E866 as a function of centrality in Au+Au collisions at [Formula Presented] The invariant transverse spectra for both kaon species are well described by exponentials in [Formula Presented] with inverse slope parameters that are largest at midrapidity and which increase with centrality. The inverse slopes of the [Formula Presented] spectra are slightly larger than the inverse slopes of the [Formula Presented] spectra. The kaon rapidity density peaks at midrapidity with the [Formula Presented] distribution wider in rapidity than [Formula Presented] The integrated total yields of [Formula Presented] and [Formula Presented] increase nonlinearly and steadily with the number of projectile participants. The yield per participant for kaons is two to three times larger than the yield from [Formula Presented] collisions. This enhancement suggests that the majority of kaons in central Au+Au reactions are produced in secondary hadronic collisions. There is no evidence for an onset of additional kaon production from a possible small volume of baryon-rich quark-gluon plasma. The differences between [Formula Presented] and [Formula Presented] rapidity distributions and transverse spectra are consistent with a lower phase space for [Formula Presented] production due to a higher energy threshold. These differences also exclude simple thermal models that assume emission from a common equilibrated system.",

author = "L. Ahle and Y. Akiba and K. Ashktorab and Baker, {M. D.} and D. Beavis and Britt, {H. C.} and J. Chang and C. Chasman and Z. Chen and Chi, {C. Y.} and Chu, {Y. Y.} and V. Cianciolo and Cole, {B. A.} and Crawford, {H. J.} and Cumming, {J. B.} and R. Debbe and Dunlop, {J. C.} and W. Eldredge and J. Engelage and Fung, {S. Y.} and E. Garcia and S. Gushue and H. Hamagaki and Hansen, {L. F.} and Hayano, {R. S.} and G. Heintzelman and E. Judd and J. Kang and Kim, {E. J.} and A. Kumagai and K. Kurita and Lee, {J. H.} and J. Luke and Y. Miake and A. Mignerey and B. Moskowitz and M. Moulson and C. Muentz and S. Nagamiya and Namboodiri, {M. N.} and Ogilvie, {C. A.} and J. Olness and Remsberg, {L. P.} and H. Sako and Sangster, {T. C.} and R. Seto and J. Shea and K. Shigaki and R. Soltz and Steadman, {S. G.} and Stephans, {G. S.F.} and Tannenbaum, {M. J.} and Thomas, {J. H.} and S. Ueno-Hayashi and F. Videbaek and F. Wang and Y. Wu and H. Xiang and Xu, {G. H.} and K. Yagi and H. Yao and Zajc, {W. A.} and F. Zhu",

year = "1998",

doi = "10.1103/PhysRevC.58.3523",

language = "English",

volume = "58",

pages = "3523--3538",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "6",

}

Ahle, L, Akiba, Y, Ashktorab, K, Baker, MD, Beavis, D, Britt, HC, Chang, J, Chasman, C, Chen, Z, Chi, CY, Chu, YY, Cianciolo, V, Cole, BA, Crawford, HJ, Cumming, JB, Debbe, R, Dunlop, JC, Eldredge, W, Engelage, J, Fung, SY, Garcia, E, Gushue, S, Hamagaki, H, Hansen, LF, Hayano, RS, Heintzelman, G, Judd, E, Kang, J, Kim, EJ, Kumagai, A, Kurita, K, Lee, JH, Luke, J, Miake, Y, Mignerey, A, Moskowitz, B, Moulson, M, Muentz, C, Nagamiya, S, Namboodiri, MN, Ogilvie, CA, Olness, J, Remsberg, LP, Sako, H, Sangster, TC, Seto, R, Shea, J, Shigaki, K, Soltz, R, Steadman, SG, Stephans, GSF, Tannenbaum, MJ, Thomas, JH, Ueno-Hayashi, S, Videbaek, F, Wang, F, Wu, Y, Xiang, H, Xu, GH, Yagi, K, Yao, H, Zajc, WA & Zhu, F 1998, 'Kaon production in Au+Au collisions at [Formula Presented]', Physical Review C - Nuclear Physics, vol. 58, no. 6, pp. 3523-3538. https://doi.org/10.1103/PhysRevC.58.3523

TY - JOUR

T1 - Kaon production in Au+Au collisions at [Formula Presented]

AU - Ahle, L.

AU - Akiba, Y.

AU - Ashktorab, K.

AU - Baker, M. D.

AU - Beavis, D.

AU - Britt, H. C.

AU - Chang, J.

AU - Chasman, C.

AU - Chen, Z.

AU - Chi, C. Y.

AU - Chu, Y. Y.

AU - Cianciolo, V.

AU - Cole, B. A.

AU - Crawford, H. J.

AU - Cumming, J. B.

AU - Debbe, R.

AU - Dunlop, J. C.

AU - Eldredge, W.

AU - Engelage, J.

AU - Fung, S. Y.

AU - Garcia, E.

AU - Gushue, S.

AU - Hamagaki, H.

AU - Hansen, L. F.

AU - Hayano, R. S.

AU - Heintzelman, G.

AU - Judd, E.

AU - Kang, J.

AU - Kim, E. J.

AU - Kumagai, A.

AU - Kurita, K.

AU - Lee, J. H.

AU - Luke, J.

AU - Miake, Y.

AU - Mignerey, A.

AU - Moskowitz, B.

AU - Moulson, M.

AU - Muentz, C.

AU - Nagamiya, S.

AU - Namboodiri, M. N.

AU - Ogilvie, C. A.

AU - Olness, J.

AU - Remsberg, L. P.

AU - Sako, H.

AU - Sangster, T. C.

AU - Seto, R.

AU - Shea, J.

AU - Shigaki, K.

AU - Soltz, R.

AU - Steadman, S. G.

AU - Stephans, G. S.F.

AU - Tannenbaum, M. J.

AU - Thomas, J. H.

AU - Ueno-Hayashi, S.

AU - Videbaek, F.

AU - Wang, F.

AU - Wu, Y.

AU - Xiang, H.

AU - Xu, G. H.

AU - Yagi, K.

AU - Yao, H.

AU - Zajc, W. A.

AU - Zhu, F.

PY - 1998

Y1 - 1998

N2 - A systematic study of the spectra and yields of [Formula Presented] and [Formula Presented] is reported by experiment E866 as a function of centrality in Au+Au collisions at [Formula Presented] The invariant transverse spectra for both kaon species are well described by exponentials in [Formula Presented] with inverse slope parameters that are largest at midrapidity and which increase with centrality. The inverse slopes of the [Formula Presented] spectra are slightly larger than the inverse slopes of the [Formula Presented] spectra. The kaon rapidity density peaks at midrapidity with the [Formula Presented] distribution wider in rapidity than [Formula Presented] The integrated total yields of [Formula Presented] and [Formula Presented] increase nonlinearly and steadily with the number of projectile participants. The yield per participant for kaons is two to three times larger than the yield from [Formula Presented] collisions. This enhancement suggests that the majority of kaons in central Au+Au reactions are produced in secondary hadronic collisions. There is no evidence for an onset of additional kaon production from a possible small volume of baryon-rich quark-gluon plasma. The differences between [Formula Presented] and [Formula Presented] rapidity distributions and transverse spectra are consistent with a lower phase space for [Formula Presented] production due to a higher energy threshold. These differences also exclude simple thermal models that assume emission from a common equilibrated system.

AB - A systematic study of the spectra and yields of [Formula Presented] and [Formula Presented] is reported by experiment E866 as a function of centrality in Au+Au collisions at [Formula Presented] The invariant transverse spectra for both kaon species are well described by exponentials in [Formula Presented] with inverse slope parameters that are largest at midrapidity and which increase with centrality. The inverse slopes of the [Formula Presented] spectra are slightly larger than the inverse slopes of the [Formula Presented] spectra. The kaon rapidity density peaks at midrapidity with the [Formula Presented] distribution wider in rapidity than [Formula Presented] The integrated total yields of [Formula Presented] and [Formula Presented] increase nonlinearly and steadily with the number of projectile participants. The yield per participant for kaons is two to three times larger than the yield from [Formula Presented] collisions. This enhancement suggests that the majority of kaons in central Au+Au reactions are produced in secondary hadronic collisions. There is no evidence for an onset of additional kaon production from a possible small volume of baryon-rich quark-gluon plasma. The differences between [Formula Presented] and [Formula Presented] rapidity distributions and transverse spectra are consistent with a lower phase space for [Formula Presented] production due to a higher energy threshold. These differences also exclude simple thermal models that assume emission from a common equilibrated system.

UR - http://www.scopus.com/inward/record.url?scp=0032257003&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.58.3523

DO - 10.1103/PhysRevC.58.3523

M3 - Article

AN - SCOPUS:0032257003

SN - 0556-2813

VL - 58

SP - 3523

EP - 3538

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

ER -

Kaon production in Au+Au collisions at [Formula Presented]

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