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Titolo:
Event-by-event fluctuations of the kaon-to-pion ratio in central Pb plus Pb collisions at 158 GeV per nucleon
Autore:
Afanasiev, SV; Anticic, T; Bachler, J; Barna, D; Barnby, LS; Bartke, J; Barton, RA; Betev, L; Bialkowska, H; Billmeier, A; Blume, C; Blyth, CO; Boimska, B; Botje, M; Bracinik, J; Brady, FP; Bramm, R; Brun, R; Buncic, P; Carr, L; Cebra, D; Cooper, GE; Cramer, JG; Csato, P; Eckardt, V; Eckhardt, F; Ferenc, D; Filip, P; Fischer, HG; Fodor, Z; Foka, P; Freund, P; Friese, V; Ftacnik, J; Gal, J; Gazdzicki, M; Georgopoulos, G; Gladysz, E; Harris, JW; Hegyi, S; Hlinka, V; Hohne, C; Igo, G; Ivanov, M; Jacobs, P; Janik, R; Jones, PG; Kadija, K; Kolesnikov, VI; Kollegger, T; Kowalski, M; Lasiuk, B; van Leeuwen, M; Levai, P; Malakhov, AI; Margetis, S; Markert, C; Mayes, BW; Melkumov, GL; Mischke, A; Molnar, J; Nelson, JM; Odyniec, G; Palla, G; Panagiotou, AD; Petridis, A; Pikna, M; Pinsky, L; Poskanzer, AM; Prindle, DJ; Puhlhofer, F; Reid, JG; Renfordt, R; Retyk, W; Ritter, HG; Rohrich, D; Roland, C; Roland, G; Rybicki, A; Sammer, T; Sandoval, A; Sann, H; Schafer, E; Schmitz, N; Seyboth, P; Sikler, F; Sitar, B; Skrzypczak, E; Snellings, R; Squier, GTA; Stock, R; Strmen, P; Strobele, H; Susa, T; Szarka, I; Szentpetery, I; Sziklai, J; Toy, M; Trainor, TA; Trentalange, S; Ullrich, T; Varga, D; Vassiliou, M; Veres, GI; Vesztergombi, G; Voloshin, S; Vranic, D; Wang, F; Weerasundara, DD; Wenig, S; Wetzler, A; Whitten, C; Xu, N; Yates, TA; Yoo, IK; Zimanyi, J;
Indirizzi:
Joint Inst Nucl Res, Dubna 141980, Russia Joint Inst Nucl Res Dubna Russia 141980 t Nucl Res, Dubna 141980, Russia Univ Calif Davis, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616Univ Calif Davis, Davis, CA 95616 USA Gesell Schwerionenforsch GmbH, GSI, D-64220 Darmstadt, Germany Gesell Schwerionenforsch GmbH Darmstadt Germany D-64220 rmstadt, Germany Inst Nucl Phys, PL-30055 Krakow, Poland Inst Nucl Phys Krakow Poland PL-30055 Nucl Phys, PL-30055 Krakow, Poland CERN, CH-1211 Geneva, Switzerland CERN Geneva Switzerland CH-1211CERN, CH-1211 Geneva, Switzerland MIT, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139MIT, Cambridge, MA 02139 USA KFKI Res Inst Particle & Nucl Phys, H-1121 Budapest, Hungary KFKI Res InstParticle & Nucl Phys Budapest Hungary H-1121 pest, Hungary Comenius Univ, Bratislava 84215, Slovakia Comenius Univ Bratislava Slovakia 84215 Univ, Bratislava 84215, Slovakia Univ Birmingham, Birmingham B15 2TT, W Midlands, England Univ Birmingham Birmingham W Midlands England B15 2TT W Midlands, England Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA Univ Calif Berkeley Berkeley CA USA 94720 atl Lab, Berkeley, CA 94720 USA Univ Athens, Dept Phys, GR-15771 Athens, Greece Univ Athens Athens Greece GR-15771 s, Dept Phys, GR-15771 Athens, Greece Univ Frankfurt, Fachbereich Phys, D-60486 Frankfurt, Germany Univ Frankfurt Frankfurt Germany D-60486 hys, D-60486 Frankfurt, Germany Univ Houston, Houston, TX 77204 USA Univ Houston Houston TX USA 77204Univ Houston, Houston, TX 77204 USA Kent State Univ, Kent, OH 44242 USA Kent State Univ Kent OH USA 44242Kent State Univ, Kent, OH 44242 USA Univ Calif Los Angeles, Los Angeles, CA 90024 USA Univ Calif Los Angeles Los Angeles CA USA 90024 Los Angeles, CA 90024 USA Univ Marburg, Fachbereich Phys, D-35032 Marburg, Germany Univ Marburg Marburg Germany D-35032 eich Phys, D-35032 Marburg, Germany Max Planck Inst Phys, D-80505 Munich, Germany Max Planck Inst Phys Munich Germany D-80505 hys, D-80505 Munich, Germany Yale Univ, New Haven, CT 06520 USA Yale Univ New Haven CT USA 06520Yale Univ, New Haven, CT 06520 USA Inst Nucl Studies, PL-00681 Warsaw, Poland Inst Nucl Studies Warsaw Poland PL-00681 tudies, PL-00681 Warsaw, Poland Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland Univ Warsaw Warsaw Poland PL-00681 st Expt Phys, PL-00681 Warsaw, Poland Univ Washington, Nucl Phys Lab, Seattle, WA 98195 USA Univ Washington Seattle WA USA 98195 Nucl Phys Lab, Seattle, WA 98195 USA Rudjer Boskovic Inst, Zagreb 10000, Croatia Rudjer Boskovic Inst Zagreb Croatia 10000 ic Inst, Zagreb 10000, Croatia NIKHEF H, Amsterdam, Netherlands NIKHEF H Amsterdam NetherlandsNIKHEF H, Amsterdam, Netherlands
Titolo Testata:
PHYSICAL REVIEW LETTERS
fascicolo: 10, volume: 86, anno: 2001,
pagine: 1965 - 1969
SICI:
0031-9007(20010305)86:10<1965:EFOTKR>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Afanasiev, SV Joint Inst Nucl Res, Dubna 141980, Russia Joint Inst Nucl Res Dubna Russia 141980 bna 141980, Russia
Citazione:
S.V. Afanasiev et al., "Event-by-event fluctuations of the kaon-to-pion ratio in central Pb plus Pb collisions at 158 GeV per nucleon", PHYS REV L, 86(10), 2001, pp. 1965-1969

Abstract

We present the first measurement of fluctuations from event to event in the production of strange particles in collisions of heavy nuclei. The ratio of charged kaons to charged pions is determined for individual central Pb Pb collisions. After accounting for the fluctuations due to detector resolution and finite number statistics we derive ant upper limit on genuine nonstatistical fluctuations, which could be related to a first- or second-order QCD phase transition. Such fluctuations Lire shown to be very small.

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Documento generato il 20/01/21 alle ore 11:43:40