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Titolo:
STUDY OF VECTOR-MESONS IN DIMUON PRODUCTION IN A LARGE KINEMATIC REGION IN P-W AND S-W INTERACTIONS AT 200 GEV C/NUCLEON/
Autore:
ANGELIS ALS; ANTOS J; BEAULIEU M; BEKER H; BRISKIN G; BYSTRICKY J; CATANESI MG; CERELLO P; DAGAN S; DELLACASA G; DIEHL M; DILIBERTO S; DOLGOSHEIN B; ESTEN M; FABJAN CW; GAIDOT A; GALLIO M; GIUBELLINO P; GOERLACH U; GUERRA C; HAMEL LA; KONOVALOV S; KRALIK I; LONDON G; MARTELLI F; MARTIN JP; MASERA M; MAZZONI MA; MEDDI F; MUCIACCIA MT; MURAVIEV S; NOMEROTSKY A; OREN Y; PANSART JP; POULARD G; RAMELLO L; RICCATI L; ROSA G; SANDOR L; SARRIS M; SCOMPARIN E; SHMELEVA A; SIMONE S; SMIRNOV S; TARAS P; URBAN J; VERCELLIN E;
Indirizzi:
CERN CH-1211 GENEVA SWITZERLAND UNIV BARI BARI ITALY IST NAZL FIS NUCL I-70126 BARI ITALY SLOVAK ACAD SCI KOSICE SLOVAKIA UNIV MONTREAL MONTREAL PQ CANADA PN LEBEDEV PHYS INST MOSCOW 117924 RUSSIA INST PHYS & ENGN MOSCOW RUSSIA UNIV ROMA LA SAPIENZA ROME ITALY IST NAZL FIS NUCL ROME ITALY CENS,DAPNIA GIF SUR YVETTE FRANCE UNIV TURIN TURIN ITALY IST NAZL FIS NUCL I-10125 TURIN ITALY MCGILL UNIV MONTREAL PQ CANADA TEL AVIV UNIV IL-69978 TEL AVIV ISRAEL UNIV COLL LONDON LONDON ENGLAND
Titolo Testata:
EUROPEAN PHYSICAL JOURNAL C-PARTICLES AND FIELDS
fascicolo: 1, volume: 5, anno: 1998,
pagine: 63 - 75
SICI:
1434-6044(1998)5:1<63:SOVIDP>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEUS-NUCLEUS COLLISIONS; QUARK-GLUON PLASMA; LEPTON-PAIR PRODUCTION; DUAL PARTON MODEL; PHI-ENHANCEMENT; PROTON-NUCLEUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
37
Recensione:
Indirizzi per estratti:
Citazione:
A.L.S. Angelis et al., "STUDY OF VECTOR-MESONS IN DIMUON PRODUCTION IN A LARGE KINEMATIC REGION IN P-W AND S-W INTERACTIONS AT 200 GEV C/NUCLEON/", EUROPEAN PHYSICAL JOURNAL C-PARTICLES AND FIELDS, 5(1), 1998, pp. 63-75

Abstract

Results are presented on rho + omega, phi and J/psi production in p-Wand S-32-W interactions at 200 GeV/c/nucleon measured via the dimuon decay in a large kinematic region. The data are normalized to the charged particle multiplicity in the same rapidity interval. They have been collected using the HELIOS/3 muon spectrometer at the CERN SPS. The ratio B sigma(phi)(B sigma(rho) + B sigma(omega)), where B is the relevant resonance mu mu branching fraction, increases between proton and sulphur projectiles, and is somewhat enhanced going from peripheral tocentral S-W interactions. This results from an increase in the numberof produced phi's per charged particle. The ratio is measured in different intervals of p tau and rapidity. It is not clearly dependent on pr, but is larger at higher rapidities. J/psi production, likewise normalized to charged multiplicity, is significantly lower in S-W compared to p-W interactions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 16:38:37