Search for neutral strange quark matter in high energy heavy ion collisions

被引：9

作者：

Armstrong, TA ^{[1
]}

Barish, K

Bennett, SJ

Chikanian, A

Coe, SD

Cormier, TM

De Cataldo, G

Davies, R

Dee, PR

Diebold, GE

Fachini, P

Finch, LE

George, NK

Giglietto, N

Greene, SV

Haridas, P

Hill, JC

Hirsch, AS

Hoversten, RA

Huang, HZ

Kim, B

Kumar, BS

Lainus, T

Lajoie, JG

Lewis, RA

Li, Q

Li, Y

Libby, B

Maguire, CF

Majka, RD

Munhoz, MG

Nagle, JL

Pless, IA

Pope, JK

Porile, NT

Pruneau, CA

Rabin, MSZ

Raino, A

Reid, JD

Rimai, A

Rotondo, FS

Sandweiss, J

Scharenberg, R

Slaughter, AJ

Smith, GA

Spinelli, P

Tincknell, ML

Toothacker, WS

Van Buren, G

Wohn, FK

机构：

[1] Penn State Univ, University Pk, PA 16802 USA

[2] Univ Bari, Ist Nazl Fis Nucl, Bari, Italy

[3] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[4] Iowa State Univ, Ames, IA 50011 USA

[5] Univ Massachusetts, Amherst, MA 01003 USA

[6] MIT, Cambridge, MA 02139 USA

[7] Purdue Univ, W Lafayette, IN 47907 USA

[8] US Mil Acad, West Point, NY 10996 USA

[9] Vanderbilt Univ, Nashville, TN 37235 USA

[10] Wayne State Univ, Detroit, MI 48201 USA

[11] Yale Univ, New Haven, CT 06520 USA

[12] Univ Calif Riverside, Riverside, CA 92521 USA

来源：

PHYSICAL REVIEW C | 1999年 / 59卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.59.R1829

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We present results of a search for neutral strange quark matter (strangelets) in 11.6A GeV/c Aut-Pb reactions from the 1995 run of experiment E864 at the Brookhaven Alternating Gradient Synchrotron. We have sampled approximately 1.3 billion 10% most central Au+Pb interactions and have observed no statistically significant signal for neutral strangelet states with baryon number in the range 6<A<100. We set upper limits on the production of these exotic states at the level of 8 x 10(-8) per central collision for mass >20 GeV/c(2) These limits are the first limits reported on the production of heavy neutral strangelets. They complement searches for positively and negatively charged strangelets also conducted by our collaboration. We discuss the implications of these results on strangelet production mechanisms and the stability of strange quark matter. [S0556-2813(99)50504-9].

引用

页码：R1829 / R1833

页数：5

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