Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
FIRST RESULTS FROM CERES NA45 ON LOW-MASS ELECTRON-PAIR PRODUCTION INPB-AU COLLISIONS/
Autore:
AGAKICHIEV G; BAUR R; BRAUNMUNZINGER P; CERETTO F; DREES A; ESUMI S; FASCHINGBAUER U; FRAENKEL Z; FUCHS C; GATTI E; GLASSEL P; DELOSHEROS CP; HOLL P; JUNG C; KRANER H; LENKEIT B; MESSER M; MINAEV Y; PANEBRATTSEV Y; PFEIFFER A; RAK J; RAVINOVICH I; RAZIN S; REHAK P; SAMPIETRO M; SCHUKRAFT J; SHIMANSKIY S; SOCOL E; SPECHT HJ; STACHEL J; TELZUR G; TSERRUYA I; ULLRICH T; VOIGT C; WEBER C; WESSELS JP; WURM JP; YUREVICH V;
Indirizzi:
JOINT INST NUCL RES DUBNA DUBNA RUSSIA UNIV HEIDELBERG HEIDELBERG GERMANY GSI DARMSTADT DARMSTADT GERMANY MAX PLANCK INST KERNPHYS D-69117 HEIDELBERG GERMANY WEIZMANN INST SCI IL-76100 REHOVOT ISRAEL POLITECN MILAN I-20133 MILAN ITALY BROOKHAVEN NATL LAB UPTON NY 11973 CERN GENEVA SWITZERLAND
Titolo Testata:
Nuclear physics. A
, volume: 610, anno: 1996,
pagine: 317 - 330
SICI:
0375-9474(1996)610:<317:FRFCNO>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
DILEPTON PRODUCTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
G. Agakichiev et al., "FIRST RESULTS FROM CERES NA45 ON LOW-MASS ELECTRON-PAIR PRODUCTION INPB-AU COLLISIONS/", Nuclear physics. A, 610, 1996, pp. 317-330

Abstract

We report preliminary results of the first measurement of low-mass electron pairs in 160 GeV/nucleon Pb-Au collisions at central rapiditiesin a wide multiplicity range. This work is the continuation of our systematic studies on pair production in p-Be, p-Au and S-Au interactions. The motivation for this effort derives from a new source of low-mass dileptons recently observed in S-Au and S-W collisions by CERES and HELIOS/3, respectively. The results obtained in the analysis of the Pb-Au data confirm our previous finding that pair production in the massrange 0.2 < m(ee) < 1.5 GeV/c(2) is enhanced over the contributions from hadron decays while no significant excess could be observed for m(ee) less than or similar to 2m(pi). A comparison of the results for different multiplicity bins favours a non-linear dependence of the e(+)e(-)-yield on the accompanying charged particle densities.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 07:45:21