Search for disoriented chiral condensates in 158 AGeV Pb+Pb collisions

被引：64

作者：

Aggarwal, MM ^{[1
]}

Agnihotri, A

Ahammed, Z

Angelis, ALS

Antonenko, V

Arefiev, V

Astakhov, V

Avdeitchikov, V

Awes, TC

Baba, PVKS

Badyal, SK

Baldine, A

Barabach, L

Barlag, C

Bathe, S

Batiounia, B

Bernier, T

Bhalla, KB

Bhatia, VS

Blume, C

Bock, R

Bohne, EM

Bucher, D

Buijs, A

Buis, EJ

Busching, H

Carlen, L

Chalyshev, V

Chattopadhyay, S

Cherbatchev, R

Chujo, T

Claussen, A

Das, AC

Decowski, MP

Djordjadze, V

Donni, P

Doubovik, I

Majumdar, MRD

El Chenawi, K

Eliseev, S

Enosawa, K

Foka, P

Fokin, S

Frolov, V

Ganti, MS

Garpman, S

Gavrishchuk, O

Geurts, FJM

Ghosh, TK

Glasow, R

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[2] Panjab Univ, Chandigarh 160014, India

[3] Univ Rajasthan, Jaipur 302004, Rajasthan, India

[4] Ctr Variable Energy Cyclotron, Calcutta 700064, W Bengal, India

[5] Univ Geneva, CH-1211 Geneva 4, Switzerland

[6] RRC Kurchatov, RU-123182 Moscow, Russia

[7] Joint Nucl Res Inst, RU-141980 Dubna, Russia

[8] Univ Jammu, Jammu 180001, India

[9] Univ Munster, D-48149 Munster, Germany

[10] Ecole Mines, SUBATECH, Nantes, France

[11] Gesell Schwerionenforsch GmbH, D-64220 Darmstadt, Germany

[12] Univ Utrecht, NIKHEF, NL-3508 TA Utrecht, Netherlands

[13] Univ Lund, SE-22100 Lund, Sweden

[14] Univ Tsukuba, Ibaraki, Osaka 305, Japan

[15] Inst Nucl Phys, CZ-25068 Rez, Czech Republic

[16] Univ Groningen, KVI, NL-9747 AA Groningen, Netherlands

[17] Inst Nucl Studies, PL-00681 Warsaw, Poland

[18] MIT, Cambridge, MA 02139 USA

[19] Inst Phys, Bhubaneswar 751005, Orissa, India

[20] Univ Tennessee, Knoxville, TN 37966 USA

来源：

PHYSICS LETTERS B | 1998年 / 420卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(97)01528-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The restoration of chiral symmetry and its subsequent breaking through a phase transition has been predicted to create regions of Disoriented Chiral Condensates (DCC). This phenomenon has been predicted to cause anomalous fluctuations in th; relative production of charged and neutral plans in high-energy hadronic and nuclear collisions. The WA98 experiment has been used to measure charged and photon multiplicities in the central region of 158 AGeV Pb + Pb collisions at the CERN SPS. In a sample of 212646 events, no clear DCC signal can be distinguished. Using a simple DCC model. we have set a 90% C.L. upper limit on the maximum DCC production allowed by the data. (C) 1998 Elsevier Science B.V.

引用

页码：169 / 179

页数：11

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