Scaling of charged particle production in d+Au collisions at √SNN=200 GeV -: art. no. 031901

被引：90

作者：

Back, BB

Baker, MD

Ballintijn, M

Barton, DS

Becker, B

Betts, RR

Bickley, AA

Bindel, R

Busza, W

Carroll, A

Decowski, MP

García, E

Gburek, T

George, N

Gulbrandsen, K

Gushue, S

Halliwell, C

Hamblen, J

Harrington, AS

Henderson, C

Hofman, DJ

Hollis, RS

Holynski, R

Holzman, B

Iordanova, A

Johnson, E

Kane, JL

Khan, N

Kulinich, P

Kuo, CM

Lee, JW

Lin, WT

Manly, S

Mignerey, AC

Nouicer, R

Olszewski, A

Pak, R

Park, IC

Pernegger, H

Reed, C

Roland, C

Roland, G

Sagerer, J

Sarin, P

Sedykh, I

Skulski, W

Smith, CE

Steinberg, P

Stephans, GSF

Sukhanov, A

机构：

[1] Argonne Natl Lab, Argonne, IL 60439 USA

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

[3] PAN, Inst Nucl Phys, Krakow, Poland

[4] MIT, Cambridge, MA 02139 USA

[5] Natl Cent Univ, Chungli 32054, Taiwan

[6] Univ Illinois, Chicago, IL 60607 USA

[7] Univ Maryland, College Pk, MD 20742 USA

[8] Univ Rochester, Rochester, NY 14627 USA

来源：

PHYSICAL REVIEW C | 2005年 / 72卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevC.72.031901

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：

The measured pseudorapidity distributions of primary charged particles over a wide pseudorapidity range of vertical bar eta vertical bar <= 5.4 and integrated charged particle multiplicities in d+Au collisions at root s(NN)=200 GeV are presented as a function of collision centrality. The longitudinal features of d+Au collisions at root s(NN)=200 GeV are found to be very similar to those seen in p+A collisions at lower energies. The total multiplicity of charged particles is found to scale with the total number of participants according to N-ch(dAu)=1/2 < N-part> N-ch(pp), and the energy dependence of the density of charged particles produced in the fragmentation region exhibits extended longitudinal scaling.

引用

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