An excitation function of K- and K+ production in AU + AU reactions at the AGS

L. Ahle; Y. Akiba; K. Ashktorab; M. D. Baker; D. Beavis; B. Budick; J. Chang; C. Chasman; Z. Chen; Y. Y. Chu; T. Chujo; J. Cumming; R. Debbe; J. C. Dunlop; W. Eldredge; K. Fleming; S. Y. Fung; E. Garcia; S. Gushue; H. Hamagaki; R. Hayano; G. H. Heintzelman; J. H. Kang; E. J. Kim; A. Kumagai; K. Kurita; J. H. Lee; Y. K. Lee; Y. Miake; A. C. Mignerey; M. Moulson; C. Muentz; K. Nagano; C. A. Ogilvie; J. Olness; K. Oyama; L. Remsberg; H. Sako; R. Seto; J. Shea; K. Shigaki; S. G. Steadman; G. S.F. Stephans; T. Tamagawa; M. J. Tannenbaum; S. Ueno-Hayashi; F. Videbaek; H. Xiang; F. Wang; K. Yagi; F. Zhu; B. B. Back; R. R. Betts; W. C. Chang; C. Y. Chi; J. B. Cumming; S. Y. Fung; R. Ganz; A. Gillitzer; W. F. Henning; D. J. Hofman; B. Holzman; S. Y. Kim; Y. Kwon; D. McLeod; V. Nanal; R. Pak; A. Ruangma; D. Russ; P. J. Stanskas; H. Wang; F. L.H. Wolfs; A. H. Wuosmaa; G. H. Xu; H. B. Yao; C. M. Zou

doi:10.1016/S0370-2693(00)00916-3

An excitation function of K^- and K⁺ production in AU + AU reactions at the AGS

L. Ahle, Y. Akiba, K. Ashktorab, M. D. Baker, D. Beavis, B. Budick, J. Chang, C. Chasman, Z. Chen, Y. Y. Chu, T. Chujo, J. Cumming, R. Debbe, J. C. Dunlop, W. Eldredge, K. Fleming, S. Y. Fung, E. Garcia, S. Gushue, H. HamagakiR. Hayano, G. H. Heintzelman, J. H. Kang, E. J. Kim, A. Kumagai, K. Kurita, J. H. Lee, Y. K. Lee, Y. Miake, A. C. Mignerey, M. Moulson, C. Muentz, K. Nagano, C. A. Ogilvie, J. Olness, K. Oyama, L. Remsberg, H. Sako, R. Seto, J. Shea, K. Shigaki, S. G. Steadman, G. S.F. Stephans, T. Tamagawa, M. J. Tannenbaum, S. Ueno-Hayashi, F. Videbaek, H. Xiang, F. Wang, K. Yagi, F. Zhu, B. B. Back, R. R. Betts, W. C. Chang, C. Y. Chi, J. B. Cumming, S. Y. Fung, R. Ganz, A. Gillitzer, W. F. Henning, D. J. Hofman, B. Holzman, S. Y. Kim, Y. Kwon, D. McLeod, V. Nanal, R. Pak, A. Ruangma, D. Russ, P. J. Stanskas, H. Wang, F. L.H. Wolfs, A. H. Wuosmaa, G. H. Xu, H. B. Yao, C. M. Zou

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Abstract

Mid-rapidity spectra and yields of K^- and K⁺ have been measured for Au + Au collisions at 4, 6, 8, and 10.7 AGeV. The K^- yield increases faster with beam energy than for K⁺ and hence the K^-/K⁺ ratio increases with beam energy. This ratio is studied as a function of both √s and √s - √s(th) which allows the direct comparison of the kaon yields with respect to the production threshold in p + p reactions. For equal √s - √s(th) the measured ratio K^-/K⁺ = 0.2 at energies above threshold in contrast to the K^-/K⁺ ratio of near unity observed at energies below threshold. The use of the K^-/K⁺ ratio to test the predicted changes of kaon properties in dense nuclear matter is discussed. (C) 2000 Elsevier Science B.V.

Original language	English
Pages (from-to)	53-60
Number of pages	8
Journal	Physics Letters B
Volume	490
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(00)00916-3
State	Published - 28 Sep 2000
Externally published	Yes

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Ahle, L., Akiba, Y., Ashktorab, K., Baker, M. D., Beavis, D., Budick, B., Chang, J., Chasman, C., Chen, Z., Chu, Y. Y., Chujo, T., Cumming, J., Debbe, R., Dunlop, J. C., Eldredge, W., Fleming, K., Fung, S. Y., Garcia, E., Gushue, S., ... Zou, C. M. (2000). An excitation function of K^- and K⁺ production in AU + AU reactions at the AGS. Physics Letters B, 490(1-2), 53-60. https://doi.org/10.1016/S0370-2693(00)00916-3

@article{cabd8265c0284974afa48c4006ab3bb0,

title = "An excitation function of K- and K+ production in AU + AU reactions at the AGS",

abstract = "Mid-rapidity spectra and yields of K- and K+ have been measured for Au + Au collisions at 4, 6, 8, and 10.7 AGeV. The K- yield increases faster with beam energy than for K+ and hence the K-/K+ ratio increases with beam energy. This ratio is studied as a function of both √s and √s - √s(th) which allows the direct comparison of the kaon yields with respect to the production threshold in p + p reactions. For equal √s - √s(th) the measured ratio K-/K+ = 0.2 at energies above threshold in contrast to the K-/K+ ratio of near unity observed at energies below threshold. The use of the K-/K+ ratio to test the predicted changes of kaon properties in dense nuclear matter is discussed. (C) 2000 Elsevier Science B.V.",

author = "L. Ahle and Y. Akiba and K. Ashktorab and Baker, {M. D.} and D. Beavis and B. Budick and J. Chang and C. Chasman and Z. Chen and Chu, {Y. Y.} and T. Chujo and J. Cumming and R. Debbe and Dunlop, {J. C.} and W. Eldredge and K. Fleming and Fung, {S. Y.} and E. Garcia and S. Gushue and H. Hamagaki and R. Hayano and Heintzelman, {G. H.} and Kang, {J. H.} and Kim, {E. J.} and A. Kumagai and K. Kurita and Lee, {J. H.} and Lee, {Y. K.} and Y. Miake and Mignerey, {A. C.} and M. Moulson and C. Muentz and K. Nagano and Ogilvie, {C. A.} and J. Olness and K. Oyama and L. Remsberg and H. Sako and R. Seto and J. Shea and K. Shigaki and Steadman, {S. G.} and Stephans, {G. S.F.} and T. Tamagawa and Tannenbaum, {M. J.} and S. Ueno-Hayashi and F. Videbaek and H. Xiang and F. Wang and K. Yagi and F. Zhu and Back, {B. B.} and Betts, {R. R.} and Chang, {W. C.} and Chi, {C. Y.} and Cumming, {J. B.} and Fung, {S. Y.} and R. Ganz and A. Gillitzer and Henning, {W. F.} and Hofman, {D. J.} and B. Holzman and Kim, {S. Y.} and Y. Kwon and D. McLeod and V. Nanal and R. Pak and A. Ruangma and D. Russ and Stanskas, {P. J.} and H. Wang and Wolfs, {F. L.H.} and Wuosmaa, {A. H.} and Xu, {G. H.} and Yao, {H. B.} and Zou, {C. M.}",

note = "Funding Information: This work was supported by the US Department of Energy under contracts with ANL (W-31-109-ENG-38), BNL (DE-AC02-98CH10886), and grants to the University of California, Riverside (DE-FG03-86ER40271), Columbia University (DE-FG02-86-ER40281), University of Illinois, Chicago (DE-FG02-94ER40865), LLNL (W-7405-ENG-48), and MIT (DE-FC02-94ER40818), the US National Science Foundation under a grant with University of Rochester (PHY-9722606), US NASA under contract with the University of California (NGR-05-003-513), Ministry of Education, Science, Sports and Culture (Japan), and by Korea Research Foundation (1997-001-D00118).",

year = "2000",

month = sep,

day = "28",

doi = "10.1016/S0370-2693(00)00916-3",

language = "English",

volume = "490",

pages = "53--60",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Ahle, L, Akiba, Y, Ashktorab, K, Baker, MD, Beavis, D, Budick, B, Chang, J, Chasman, C, Chen, Z, Chu, YY, Chujo, T, Cumming, J, Debbe, R, Dunlop, JC, Eldredge, W, Fleming, K, Fung, SY, Garcia, E, Gushue, S, Hamagaki, H, Hayano, R, Heintzelman, GH, Kang, JH, Kim, EJ, Kumagai, A, Kurita, K, Lee, JH, Lee, YK, Miake, Y, Mignerey, AC, Moulson, M, Muentz, C, Nagano, K, Ogilvie, CA, Olness, J, Oyama, K, Remsberg, L, Sako, H, Seto, R, Shea, J, Shigaki, K, Steadman, SG, Stephans, GSF, Tamagawa, T, Tannenbaum, MJ, Ueno-Hayashi, S, Videbaek, F, Xiang, H, Wang, F, Yagi, K, Zhu, F, Back, BB, Betts, RR, Chang, WC, Chi, CY, Cumming, JB, Fung, SY, Ganz, R, Gillitzer, A, Henning, WF, Hofman, DJ, Holzman, B, Kim, SY, Kwon, Y, McLeod, D, Nanal, V, Pak, R, Ruangma, A, Russ, D, Stanskas, PJ, Wang, H, Wolfs, FLH, Wuosmaa, AH, Xu, GH, Yao, HB & Zou, CM 2000, 'An excitation function of K^- and K⁺ production in AU + AU reactions at the AGS', Physics Letters B, vol. 490, no. 1-2, pp. 53-60. https://doi.org/10.1016/S0370-2693(00)00916-3

TY - JOUR

T1 - An excitation function of K- and K+ production in AU + AU reactions at the AGS

AU - Ahle, L.

AU - Akiba, Y.

AU - Ashktorab, K.

AU - Baker, M. D.

AU - Beavis, D.

AU - Budick, B.

AU - Chang, J.

AU - Chasman, C.

AU - Chen, Z.

AU - Chu, Y. Y.

AU - Chujo, T.

AU - Cumming, J.

AU - Debbe, R.

AU - Dunlop, J. C.

AU - Eldredge, W.

AU - Fleming, K.

AU - Fung, S. Y.

AU - Garcia, E.

AU - Gushue, S.

AU - Hamagaki, H.

AU - Hayano, R.

AU - Heintzelman, G. H.

AU - Kang, J. H.

AU - Kim, E. J.

AU - Kumagai, A.

AU - Kurita, K.

AU - Lee, J. H.

AU - Lee, Y. K.

AU - Miake, Y.

AU - Mignerey, A. C.

AU - Moulson, M.

AU - Muentz, C.

AU - Nagano, K.

AU - Ogilvie, C. A.

AU - Olness, J.

AU - Oyama, K.

AU - Remsberg, L.

AU - Sako, H.

AU - Seto, R.

AU - Shea, J.

AU - Shigaki, K.

AU - Steadman, S. G.

AU - Stephans, G. S.F.

AU - Tamagawa, T.

AU - Tannenbaum, M. J.

AU - Ueno-Hayashi, S.

AU - Videbaek, F.

AU - Xiang, H.

AU - Wang, F.

AU - Yagi, K.

AU - Zhu, F.

AU - Back, B. B.

AU - Betts, R. R.

AU - Chang, W. C.

AU - Chi, C. Y.

AU - Cumming, J. B.

AU - Fung, S. Y.

AU - Ganz, R.

AU - Gillitzer, A.

AU - Henning, W. F.

AU - Hofman, D. J.

AU - Holzman, B.

AU - Kim, S. Y.

AU - Kwon, Y.

AU - McLeod, D.

AU - Nanal, V.

AU - Pak, R.

AU - Ruangma, A.

AU - Russ, D.

AU - Stanskas, P. J.

AU - Wang, H.

AU - Wolfs, F. L.H.

AU - Wuosmaa, A. H.

AU - Xu, G. H.

AU - Yao, H. B.

AU - Zou, C. M.

N1 - Funding Information: This work was supported by the US Department of Energy under contracts with ANL (W-31-109-ENG-38), BNL (DE-AC02-98CH10886), and grants to the University of California, Riverside (DE-FG03-86ER40271), Columbia University (DE-FG02-86-ER40281), University of Illinois, Chicago (DE-FG02-94ER40865), LLNL (W-7405-ENG-48), and MIT (DE-FC02-94ER40818), the US National Science Foundation under a grant with University of Rochester (PHY-9722606), US NASA under contract with the University of California (NGR-05-003-513), Ministry of Education, Science, Sports and Culture (Japan), and by Korea Research Foundation (1997-001-D00118).

PY - 2000/9/28

Y1 - 2000/9/28

N2 - Mid-rapidity spectra and yields of K- and K+ have been measured for Au + Au collisions at 4, 6, 8, and 10.7 AGeV. The K- yield increases faster with beam energy than for K+ and hence the K-/K+ ratio increases with beam energy. This ratio is studied as a function of both √s and √s - √s(th) which allows the direct comparison of the kaon yields with respect to the production threshold in p + p reactions. For equal √s - √s(th) the measured ratio K-/K+ = 0.2 at energies above threshold in contrast to the K-/K+ ratio of near unity observed at energies below threshold. The use of the K-/K+ ratio to test the predicted changes of kaon properties in dense nuclear matter is discussed. (C) 2000 Elsevier Science B.V.

AB - Mid-rapidity spectra and yields of K- and K+ have been measured for Au + Au collisions at 4, 6, 8, and 10.7 AGeV. The K- yield increases faster with beam energy than for K+ and hence the K-/K+ ratio increases with beam energy. This ratio is studied as a function of both √s and √s - √s(th) which allows the direct comparison of the kaon yields with respect to the production threshold in p + p reactions. For equal √s - √s(th) the measured ratio K-/K+ = 0.2 at energies above threshold in contrast to the K-/K+ ratio of near unity observed at energies below threshold. The use of the K-/K+ ratio to test the predicted changes of kaon properties in dense nuclear matter is discussed. (C) 2000 Elsevier Science B.V.

UR - http://www.scopus.com/inward/record.url?scp=0034727010&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(00)00916-3

DO - 10.1016/S0370-2693(00)00916-3

M3 - Article

AN - SCOPUS:0034727010

SN - 0370-2693

VL - 490

SP - 53

EP - 60

JO - Physics Letters B

JF - Physics Letters B

IS - 1-2

ER -

An excitation function of K^- and K⁺ production in AU + AU reactions at the AGS

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