What information can we obtain from the yield ratio pi(-)/pi(+) in heavy-ion collisions?

被引：9

作者：

Osada, T ^{[1
]}

Sano, S ^{[1
]}

Biyajima, M ^{[1
]}

Wilk, G ^{[1
]}

机构：

[1] SOLTAN INST NUCL STUDIES, PL-00681 WARSAW, POLAND

来源：

PHYSICAL REVIEW C | 1996年 / 54卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.54.R2167

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：

Data on the pi(-)/pi(+) ratio in heavy-ion collisions are analyzed by theoretical formula. It accounts for Coulomb interaction between central charged fragment consisting of stopped nucleons with effective charge Z(eff) and charged pi's. The Coulomb wave function method is used in order to account for the finite pi production range beta. For the Gaussian source function it results in a quasiscaling in beta and Z(eff), which makes determination of beta and Z(eff) difficult. Only sufficiently accurate data taken in the extreme small m(T)-m(pi) region, where this quasiscaling is broken, could be used for this purpose.

引用

页码：R2167 / R2170

页数：4

共 13 条

[1] Coulomb corrections for Bose-Einstein correlations in whole momentum transfer region: Proposal of seamless fitting [J].

Biyajima, M ;

Mizoguchi, T ;

Osada, T ;

Wilk, G .

PHYSICS LETTERS B, 1996, 366 (1-4) :394-400

[2] IMPROVED COULOMB CORRECTION FORMULAS FOR BOSE-EINSTEIN CORRELATIONS [J].

BIYAJIMA, M ;

MIZOGUCHI, T ;

OSADA, T ;

WILK, G .

PHYSICS LETTERS B, 1995, 353 (2-3) :340-348

[3] Coulomb effect in single particle distributions [J].

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, D .

PHYSICS LETTERS B, 1996, 372 (3-4) :339-342

[4]

FRANZ A, 1996, QUARK MATT 96 HEID G

[5]

GONIN M, 1994, NUCL PHYS A, V566, pC601

[6] COULOMB EFFECTS IN RELATIVISTIC NUCLEAR COLLISIONS [J].

GYULASSY, M ;

KAUFFMANN, SK .

NUCLEAR PHYSICS A, 1981, 362 (02) :503-533

[7]

HAMAGAKI H, 1994, NUCL PHYS A, V566, pC27

[8]

HAMAGAKI H, 1995, KENKYU, V40, P39

[9] REVISIT OF COULOMB EFFECTS ON PI(-)/PI(+)-RATIO IN HEAVY-ION COLLISIONS [J].

LI, BA .

PHYSICS LETTERS B, 1995, 346 (1-2) :5-8

[10] BOUNDARY AND COULOMB EFFECTS ON BOSON SYSTEMS IN HIGH-ENERGY HEAVY-ION COLLISIONS [J].

MOSTAFA, MGH ;

WONG, CY .

PHYSICAL REVIEW C, 1995, 51 (04) :2135-2143

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