Isospin fluctuations from a thermally equilibrated hadron gas

被引：6

作者：

Cheng, S ^{[1
]}

Pratt, S

机构：

[1] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[2] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

来源：

PHYSICAL REVIEW C | 2003年 / 67卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.67.044904

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：

Partition functions, multiplicity distributions, and isospin fluctuations are calculated for canonical ensembles in which additive quantum numbers as well as total isospin are strictly conserved. When properly accounting for Bose-Einstein symmetrization, the multiplicity distributions of neutral pions in a hadronic gas are significantly broader as compared to the nondegenerate case. Inclusion of resonances compensates for this broadening effect. Recursion relations are derived, which allow calculation of exact results with modest computer time.

引用

页码：449041 / 4490413

页数：13

共 28 条

[1] Dynamics of hot bulk QCD matter: From the quark-gluon plasma to hadronic freeze-out [J].

Bass, SA ;

Dumitru, A .

PHYSICAL REVIEW C, 2000, 61 (06) :24

[2] Clocking hadronization in relativistic heavy-ion collisions with balance functions [J].

Bass, SA ;

Danielewicz, P ;

Pratt, S .

PHYSICAL REVIEW LETTERS, 2000, 85 (13) :2689-2692

[3]

BLUMEL W, 1985, Z PHYS C, V67, P281

[4] OBSERVATION OF A HIGH-ENERGY COSMIC-RAY FAMILY CAUSED BY A CENTAURO-TYPE NUCLEAR-INTERACTION IN THE JOINT EMULSION CHAMBER EXPERIMENT AT THE PAMIRS [J].

BORISOV, AS ;

CHERDYNTSEVA, KV ;

GUSEVA, ZM ;

DENISOVA, VG ;

DUNAEVSKY, AM ;

KANEVSKAYA, EA ;

MAXIMENKO, VM ;

NAM, RA ;

PUCHKOV, VS ;

SLAVATINSKY, SA ;

SMIRNOVA, MD ;

SMORODIN, YA ;

URYSON, AV ;

ZELEVINSKAYA, NG ;

ZIMIN, MV ;

ZHDANOV, GB ;

MIKHAILOVA, IA ;

MUKHAMEDSHIN, RA ;

NEDELKO, OE ;

NIKOLAEVA, LP ;

ZATSEPIN, GT ;

AMINEVA, TP ;

BARADZEI, LT ;

IVANENKO, IP ;

ILJINA, NP ;

LAZAREVA, TV ;

MANAGADZE, AK ;

MURZINA, EA ;

POMELOVA, EI ;

POPOVA, EG ;

RAKOBOLSKAYA, IV ;

ROGANOVA, TM ;

RYABOVA, NG ;

SVESHNIKOVA, LG ;

CANANOV, SD ;

CHADRANYAN, LK ;

KHISANISHVILI, LA ;

LADARIJA, MK ;

LEPTUKH, GG ;

ROINISHVILI, NN ;

SVANIDZE, MS ;

AZIMOV, ZA ;

BOBODJANOV, IB ;

GUBAR, NE ;

GULOV, YA ;

NORMURADOV, F ;

SHOBORONOV, K ;

AZIMOV, SA ;

KHALILOV, DA ;

MYRTOJIEVA, S .

PHYSICS LETTERS B, 1987, 190 (1-2) :226-233

[5] EXACT METHODS FOR EXPECTATION VALUES IN CANONICAL FRAGMENTATION MODELS [J].

CHASE, KC ;

MEKJIAN, AZ .

PHYSICAL REVIEW C, 1995, 52 (05) :R2339-R2341

[6] Isospin violation and possible signatures of disoriented chiral condensates in ultrarelativistic heavy ion collisions [J].

Cohen, TD .

PHYSICS LETTERS B, 1996, 372 (3-4) :193-197

[7] Phase transition in a statistical model for nuclear multifragmentation [J].

Das Gupta, S ;

Mekjian, AZ .

PHYSICAL REVIEW C, 1998, 57 (03) :1361-1365

[8] STRANGENESS ABUNDANCES IN PBAR-NUCLEUS ANNIHILATIONS [J].

DERRETH, C ;

GREINER, W ;

ELZE, HT ;

RAFELSKI, J .

PHYSICAL REVIEW C, 1985, 31 (04) :1360-1364

[9] ON THE COLOR-SINGLET QUARK-GLUE PLASMA [J].

ELZE, HT ;

GREINER, W ;

RAFELSKI, J .

PHYSICS LETTERS B, 1983, 124 (06) :515-519

[10] COLOR DEGREES OF FREEDOM IN A QUARK GLUE PLASMA AT FINITE BARYON DENSITY [J].

ELZE, HT ;

GREINER, W ;

RAFELSKI, J .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1984, 24 (3-4) :361-365

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