Mass dependence of light-nucleus production in ultrarelativistic heavy-ion collisions

被引：33

作者：

Armstrong, TA

Barish, KN

Batsouli, S

Bennett, SJ

Chikanian, A

Coe, SD

Cormier, TM

Davies, R

Dover, CB

Fachini, P

Fadem, B

Finch, LE

George, NK

Greene, SV

Haridas, P

Hill, JC

Hirsch, AS

Hoversten, R

Huang, HZ

Jaradat, H

Kumar, BS

Lainis, T

Lajoie, JG

Lewis, RA

Li, Q

Libby, B

Majka, RD

Miller, TE

Munhoz, MG

Nagle, JL

Pless, IA

Pope, JK

Porile, NT

Pruneau, CA

Rabin, MSZ

Reid, JD

Rimai, A

Rose, A

Rotondo, FS

Sandweiss, J

Scharenberg, RP

Slaughter, AJ

Smith, GA

Tincknell, ML

Toothacker, WS

Van Buren, G

Wohn, FK

Xu, Z

机构：

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

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

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

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

[5] Columbia Univ, Nevis Lab, Irvington, NY 10533 USA

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

[7] Univ Massachusetts, Amherst, MA 01003 USA

[8] MIT, Cambridge, MA 02139 USA

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

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

[11] Vanderbilt Univ, Nashville, TN 37235 USA

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

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

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.83.5431

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Light nuclei can be produced in the central reaction zone via coalescence in relativistic heavy-ion collisions. Experiment 864 at BNL has measured the production of ten light nuclei with nuclear number A = 1 to A = 7 at rapidity y similar or equal to 1.9 and p(T)/A similar or equal to 300 MeV/c. Data were taken with a Au beam of momentum of 11.5A GeV/c on a Pb or Pt target with different experimental settings. The invariant yields show a striking exponential dependence on nuclear number with a penalty factor of about 50 per additional nucleon. Detailed analysis reveals that the production may depend on the spin factor of the nucleus and the nuclear binding energy as well.

引用

页码：5431 / 5434

页数：4

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