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Titolo:
Centrality dependence of kaon yields in Si + A and Au + Au collisions at relativistic energies - art. no. 044904
Autore:
Ahle, L; Akiba, Y; Ashktorab, K; Baker, M; Beavis, D; Beery, P; Britt, HC; Budick, B; Chang, J; Chasman, C; Chen, Z; Chi, CY; Chu, YY; Cianciolo, V; Cole, BA; Costales, JJ; Crawford, HJ; Cumming, JB; Debbe, R; Dunlop, JC; Eldredge, W; Engelage, J; Fung, SY; Gaardhoje, J; Gonin, M; Gushue, S; Hamagaki, H; Hansen, A; Hansen, L; Hansen, O; Hayano, RS; Hayashi, S; Heintzelman, G; Homma, S; Judd, E; Kaneko, H; Kang, J; Kaufman, S; Kehoe, WL; Kumagai, A; Kurita, K; Ledoux, RJ; LeVine, MJ; Luke, J; Miake, Y; Morrison, DP; Morse, RJ; Moskowitz, B; Moulson, M; Nagamiya, S; Namboodiri, MN; Nayak, TK; Ogilvie, CA; Olness, J; Parsons, CG; Remsberg, LP; Roehrich, D; Rothschild, P; Sako, H; Sakurai, H; Sangster, TC; Seto, R; Shigaki, K; Soltz, R; Stankus, P; Steadman, SG; Stephans, GSF; Sung, TW; Tanaka, Y; Tannenbaum, MJ; Thomas, JH; Tonse, SR; Ueno-Hayashi, S; van Dijk, JH; Videbaek, F; Vossnack, O; Vutsadakis, V; Wang, F; Wang, Y; Wegner, HE; Woodruff, D; Wu, Y; Xu, GH; Yagi, K; Yang, X; Zachary, D; Zajc, WA; Zhu, F; Zhu, Q;
Indirizzi:
Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA Univ CalifLawrence Livermore Natl Lab Livermore CA USA 94550 A 94550 USA Brookhaven Natl Lab, Upton, NY 11973 USA Brookhaven Natl Lab Upton NY USA11973 aven Natl Lab, Upton, NY 11973 USA Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA Univ Calif Berkeley Berkeley CA USA 94720 Sci Lab, Berkeley, CA 94720 USA Univ Calif Riverside, Riverside, CA 92507 USA Univ Calif Riverside Riverside CA USA 92507 side, Riverside, CA 92507 USA Columbia Univ, New York, NY 10027 USA Columbia Univ New York NY USA 10027Columbia Univ, New York, NY 10027 USA Nevis Labs, Irvington, NY 10533 USA Nevis Labs Irvington NY USA 10533Nevis Labs, Irvington, NY 10533 USA KEK, High Energy Accelerator Res Org, Tanashi Branch, Tanashi, Tokyo 188, Japan KEK Tanashi Tokyo Japan 188 rg, Tanashi Branch, Tanashi, Tokyo 188, Japan Kyushu Univ, Fukuoka 812, Japan Kyushu Univ Fukuoka Japan 812Kyushu Univ, Fukuoka 812, Japan Kyoto Univ, Sakyo Ku, Kyoto 606, Japan Kyoto Univ Kyoto Japan 606Kyoto Univ, Sakyo Ku, Kyoto 606, Japan MIT, Nucl Sci Lab, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139MIT, Nucl Sci Lab, Cambridge, MA 02139 USA NYU, New York, NY 10003 USA NYU New York NY USA 10003NYU, New York, NY 10003 USA Niels Bohr Inst, DK-2100 Copenhagen O, Denmark Niels Bohr Inst Copenhagen Denmark O Inst, DK-2100 Copenhagen O, Denmark Univ Tsukuba, Tsukuba, Ibaraki 305, Japan Univ Tsukuba Tsukuba Ibaraki Japan 305 ukuba, Tsukuba, Ibaraki 305, Japan Univ Tokyo, Sch Sci, Ctr Nucl Study, Tanashi, Tokyo 188, Japan Univ TokyoTanashi Tokyo Japan 188 Nucl Study, Tanashi, Tokyo 188, Japan Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA Argonne Natl Lab Argonne IL USA 60439 ab, Div Phys, Argonne, IL 60439 USA
Titolo Testata:
PHYSICAL REVIEW C-NUCLEAR PHYSICS
fascicolo: 4, volume: 6004, anno: 1999,
pagine: 4904 -
SICI:
0556-2813(199910)6004:4<4904:CDOKYI>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAVY-ION COLLISIONS; 14.6A GEV/C; PARTICLE-PRODUCTION; BARYON DENSITY; 11.6A GEV/C; DISTRIBUTIONS; NUCLEON; AU+AU; STRANGENESS; DETECTOR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Ahle, L Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA Univ Calif Lawrence Livermore Natl Lab Livermore CA USA 94550 USA
Citazione:
L. Ahle et al., "Centrality dependence of kaon yields in Si + A and Au + Au collisions at relativistic energies - art. no. 044904", PHYS REV C, 6004(4), 1999, pp. 4904

Abstract

Charged kaon production has been measured in Si+Al and Si+Au collisions at14.6A GeV/c, and Au+Au collisions at 11.1A GeV/c by Experiments 859 and 866 (the E-802 Collaboration) at the BNL AGS. Invariant transverse mass spectra and rapidity distributions for both K+ and K- are presented. The centrality dependence of rapidity-integrated kaon yields is studied. Strangeness enhancement is observed as an increase in the slope of the kaon yield with the total number of participants as well as the yield per participant. The enhancement starts with peripheral Si+Al and Si+Au collisions (relative to NN) and appears to saturate for a moderate number of participating nucleonsin Si+Au collisions. It is also observed to increase slowly with centrality in Au+Au collisions, to a level in the most central Au+Au collisions thatis greater than that found in central Si+A collisions. The enhancement factors for K+ production are 3.0+/-0.2(stat)+/-0.4(syst) and 4.0+/-0.3(stat)+/-0.5(syst), respectively, for the most central 7% Si+Au collisions and themost central 4% Au+Au collisions relative to N+N at the corresponding beamenergy. [S0556-2813(99)01910-X].

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Documento generato il 13/07/20 alle ore 17:29:07