Strange meson enhancement in PbPb collisions

被引：38

作者：

Bearden, I

Boggild, H

Boissevain, J

Conin, L

Dodd, J

Erazmus, B

Esumi, S

Fabjan, CW

Ferenc, D

Fields, DE

Franz, A

Gaardhoje, JJ

Hansen, AG

Hansen, O

Hardtke, D

van Hecke, H

Holzer, EB

Humanic, TJ

Hummel, P

Jacak, BV

Jayanti, R

Kaimi, K

Kaneta, M

Kohama, T

Kopytine, ML

Leltchouk, M

Ljubicic, A

Lörstad, B

Maeda, N

Martin, L

Medvedev, A

Murray, M

Ohnishi, H

Paic, G

Pandey, SU

Piuz, F

Pluta, J

Polychronakos, V

Potekhin, M

Poulard, G

Reichhold, D

Sakaguchi, A

Schmidt-Sorensen, J

Simon-Gillo, J

Sondheim, W

Sugitate, T

Sullivan, JP

Sumi, Y

Willis, WJ

Wolf, KL

机构：

[1] Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[3] Columbia Univ, New York, NY 10027 USA

[4] Nucl Phys Lab, F-44072 Nantes, France

[5] Hiroshima Univ, Higashihiroshima 739, Japan

[6] CERN, CH-1211 Geneva 23, Switzerland

[7] Rudjer Boskovic Inst, Zagreb, Croatia

[8] Texas A&M Univ, College Stn, TX 77843 USA

[9] Ohio State Univ, Columbus, OH 43210 USA

[10] SUNY Stony Brook, Stony Brook, NY 11794 USA

[11] Lund Univ, S-22362 Lund, Sweden

[12] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

PHYSICS LETTERS B | 1999年 / 471卷 / 01期

基金：

美国国家科学基金会; 日本学术振兴会;

关键词：

relativistic heavy ion collisions; particle production; kaon; pion; strangeness enhancement; quark-gluon plasma;

D O I：

10.1016/S0370-2693(99)01327-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The NA44 Collaboration has measured yields and differential distributions of K+, K-, pi(+), pi(-) in transverse kinetic energy and rapidity, around the center-of-mass rapidity in 158 A GeV/c Pb + Pb collisions at the CERN SPS. A considerable enhancement of K+ production per pi is observed, as compared to p + p collisions at this energy. To illustrate the importance of secondary hadron rescattering as an enhancement mechanism, we compare strangeness production at the SPS and AGS with predictions of the transport model RQMD. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：6 / 12

页数：7

共 23 条

[1] PROPERTIES OF A FINE-SAMPLING URANIUM-COPPER SCINTILLATOR HADRON CALORIMETER [J].

AKESSON, T ;

BATLEY, R ;

BENARY, O ;

BERSET, JC ;

BOTNER, O ;

BURNS, M ;

CLELAND, WE ;

DAGAN, S ;

DAM, P ;

DELAVALLADE, G ;

DICIACCIO, A ;

DITORE, G ;

FABJAN, CW ;

GORDON, HA ;

HARRIS, M ;

JEFFREYS, PW ;

KESSELER, G ;

LINDSAY, J ;

LISSAUER, D ;

MOLZON, W ;

NIELSEN, BS ;

OLSEN, L ;

OREN, Y ;

RENAUD, J ;

ROSSELET, L ;

SCHINDLER, R ;

STUMER, I ;

VANDERLANS, J ;

VELLA, E ;

WANG, CJ ;

WIGMANS, R ;

WILLIS, WJ ;

WINIK, M ;

WITZELING, W ;

WOODY, C .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1985, 241 (01) :17-42

[2]

Akiba Y, 1996, NUCL PHYS A, V610, pC139

[3] PRODUCTION SPECTRA OF PI+/-, K+/-, P+/- AT LARGE ANGLES IN PROTON-PROTON COLLISIONS IN CERN INTERSECTING STORAGE RINGS [J].

ALPER, B ;

BOGGILD, H ;

BOOTH, P ;

BULOS, F ;

CARROLL, LJ ;

DAMGAARD, G ;

VONDARDEL, G ;

DUFF, B ;

HANSEN, KH ;

HEYMANN, F ;

JACKSON, JN ;

JARLSKOG, G ;

JONSSON, L ;

KLOVNING, A ;

LEISTAM, L ;

LILLETHUN, E ;

LOHSE, E ;

LYNCH, G ;

MANNING, G ;

POTTER, K ;

PRENTICE, M ;

SHARP, P ;

SHARROCK, S ;

OLGAARDNIELSEN, S ;

QUARRIE, D ;

WEISS, JM .

NUCLEAR PHYSICS B, 1975, 100 (02) :237-290

[4] Baryon stopping and charged particle distributions in central Pb+Ph collisions at 158 GeV per nucleon [J].

Appelshäuser, H ;

Bächler, J ;

Bailey, SJ ;

Barnby, LS ;

Bartke, J ;

Barton, RA ;

Bialkowska, H ;

Billmeier, A ;

Blyth, CO ;

Bock, R ;

Boimska, B ;

Bormann, C ;

Brady, FP ;

Brockmann, R ;

Brun, R ;

Buncic, P ;

Caines, HL ;

Cebra, D ;

Cooper, GE ;

Cramer, JG ;

Csato, P ;

Dunn, J ;

Eckardt, V ;

Eckhardt, F ;

Ferguson, MI ;

Fischer, HG ;

Flierl, D ;

Fodor, Z ;

Foka, P ;

Freund, P ;

Friese, V ;

Fuchs, M ;

Gabler, F ;

Gal, J ;

Ganz, R ;

Gazdzicki, M ;

Geist, W ;

Gladysz, E ;

Grebieszkow, J ;

Günther, J ;

Harris, JW ;

Hegyi, S ;

Henkel, T ;

Hill, LA ;

Huang, I ;

Hümmler, H ;

Igo, G ;

Irmscher, D ;

Jacobs, P ;

Jones, PG .

PHYSICAL REVIEW LETTERS, 1999, 82 (12) :2471-2475

[5] Mid-rapidity protons in 158A center dot GeV Pb+Pb collisions [J].

Bearden, IG ;

Boggild, H ;

Boissevain, J ;

Dodd, J ;

Erazmus, B ;

Esumi, S ;

Fabjan, CW ;

Ferenc, D ;

Fields, DE ;

Franz, A ;

Gaardhoje, JJ ;

Hansen, O ;

Hardtke, D ;

vanHecke, H ;

Holzer, EB ;

Humanic, T ;

Hummel, P ;

Jacak, BV ;

Jayanti, R ;

Kaneta, M ;

Kopytine, M ;

Leltchouk, M ;

Ljubicic, T ;

Lorstad, B ;

Maeda, N ;

Medvedev, A ;

Murray, M ;

Nishimura, S ;

Ohnishi, H ;

Paic, G ;

Pandey, SU ;

Piuz, F ;

Pluta, J ;

Polychronakos, V ;

Potekhin, M ;

Poulard, G ;

Sakaguchi, A ;

SimonGillo, J ;

SchmidtSorensen, J ;

Sondheim, W ;

Spegel, M ;

Sugitate, T ;

Sullivan, JP ;

Sumi, Y ;

Willis, WJ ;

Wolf, K ;

Xu, N ;

Zachary, DS .

PHYSICS LETTERS B, 1996, 388 (02) :431-436

[6]

BEKER H, 1993, PHYS LETT B, V302, P510

[7]

BELENKY SZ, 1956, NUCL PHYS, V2, P259

[8] Charged kaon and pion production at midrapidity in proton-nucleus and sulphur-nucleus collisions [J].

Boggild, H ;

Boissevain, J ;

Dodd, J ;

Esumi, S ;

Fabjan, CW ;

Fields, DE ;

Franz, A ;

Hansen, KH ;

Humanic, TJ ;

Jacak, BV ;

Kalechofsky, H ;

Lee, YY ;

Leltchouk, M ;

Lörstad, B ;

Maeda, N ;

Miyabayashi, A ;

Murray, M ;

Nishimura, S ;

Pandey, SU ;

Piuz, F ;

Polychronakos, V ;

Potekhin, M ;

Poulard, G ;

Sakaguchi, A ;

Sarabura, M ;

Simon-Gillo, J ;

Schmidt-Sorensen, J ;

Sondheim, W ;

Sugitate, T ;

Sullivan, JP ;

Sumi, Y ;

van Hecke, H ;

Willis, WJ ;

Wolf, K .

PHYSICAL REVIEW C, 1999, 59 (01) :328-335

[9]

Bormann C, 1997, J PHYS G NUCL PARTIC, V23, P1817

[10] SUPERDENSE MATTER - NEUTRONS OR ASYMPTOTICALLY FREE QUARKS [J].

COLLINS, JC ;

PERRY, MJ .

PHYSICAL REVIEW LETTERS, 1975, 34 (21) :1353-1356

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