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Titolo:
MEASUREMENT OF PION ENHANCEMENT AT LOW TRANSVERSE-MOMENTUM AND OF THEDELTA-RESONANCE ABUNDANCE IN SI-NUCLEUS COLLISIONS AT AGS ENERGY
Autore:
BARRETTE J; BELLWIED R; BRAUNMUNZINGER P; CLELAND WE; CORMIER TM; DAVID G; DEE J; DIEBOLD GE; DIETZSCH O; GERMANI JV; GILBERT S; GREENE SV; HALL JR; HEMMICK TK; HERRMANN N; HONG B; JAYANANDA K; KRAUS D; KUMAR BS; LACASSE R; LISSAUER D; LLOPE WJ; LUDLAM TW; MCCORKLE S; MAJKA R; MARK SK; MITCHELL JT; MUTHUSWAMY M; OBRIEN E; PRUNEAU C; RAO MN; ROTONDO F; DASILVA NC; SONNADARA U; STACHEL J; TAKAI H; TAKAGUI EM; THROWE TG; WANG G; WOLFE D; WOODY CL; XU N; ZHANG Y; ZHANG Z; ZOU C;
Indirizzi:
MCGILL UNIV MONTREAL PQ CANADA BROOKHAVEN NATL LAB UPTON NY 11973 GESELL SCHWERIONENFORSCH MBH DARMSTADT GERMANY UNIV NEW MEXICO ALBUQUERQUE NM 87131 UNIV PITTSBURGH PITTSBURGH PA 15260 SUNY STONY BROOK STONY BROOK NY 11794 UNIV SAO PAULO BR-05508 SAO PAULO BRAZIL WAYNE STATE UNIV DETROIT MI 48202 YALE UNIV NEW HAVEN CT 06511
Titolo Testata:
Physics letters. Section B
fascicolo: 1-3, volume: 351, anno: 1995,
pagine: 93 - 98
SICI:
0370-2693(1995)351:1-3<93:MOPEAL>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAVY-ION COLLISIONS; FLOW; PROTONS; GEV/C;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
J. Barrette et al., "MEASUREMENT OF PION ENHANCEMENT AT LOW TRANSVERSE-MOMENTUM AND OF THEDELTA-RESONANCE ABUNDANCE IN SI-NUCLEUS COLLISIONS AT AGS ENERGY", Physics letters. Section B, 351(1-3), 1995, pp. 93-98

Abstract

We present measurements of pion transverse momentum (p(t)) spectra incentral Si-nucleus collisions in the rapidity range 2.0 < y < 5.0 forp(t) down to and including p(t) = 0. The data exhibit an enhanced pion yield at low, p(t) compared to what is expected for a purely thermalspectral shape. This enhancement is used to determine the Delta resonance abundance at freeze-out. The results are consistent with a directmeasurement of the Delta resonance yield by reconstruction of proton-pion pairs and imply a temperature of the system at freeze-out close to 140 MeV.

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Documento generato il 23/11/20 alle ore 20:10:32