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Titolo:
NEUTRAL MESON PRODUCTION IN P-BE AND P-AU COLLISIONS AT 450 GEV BEAM ENERGY
Autore:
AGAKICHIEV G; APPENHEIMER M; AVERBECK R; BALLESTER F; BAUR R; BRENSCHEDE A; DIAZ J; DREES A; FASCHINGBAUER U; FERRERO JL; FISCHER P; FRAENKEL Z; FRANKE M; FUCHS C; GATTI E; GLASSEL P; GUNZEL T; DELOSHERO CP; HESS F; HOLZMANN R; IRMSCHER D; JACOB C; KUHN W; LENKEIT B; LOHNER H; MARIN A; MARQUES FM; MARTINEZ G; METAG V; NOTHEISEN M; NOVOTNY R; OLSEN LH; SCHON A; SCHUKRAFT J; OSTENDORF R; PANEBRATTSEV Y; PFEIFFER A; RAVINOVICH I; REHAK P; SAMPIETRO M; SCHUTZ Y; SHIMANSKY S; SHOR A; SIMON RS; SPECHT HJ; STEINER V; TAPPROGGE S; TELZUR G; TSERRUYA I; ULLRICH T; WILSCHUT H; WURM JP; YUREVICH V;
Indirizzi:
MAX PLANCK INST KERNPHYS D-69117 HEIDELBERG GERMANY UNIV GIESSEN,INST PHYS 2 D-35392 GIESSEN GERMANY GSI DARMSTADT D-64220 DARMSTADT GERMANY INST FIS CORPUSCULAR E-46100 BURJASSOT VALENCIA SPAIN UNIV HEIDELBERG,INST PHYS D-69120 HEIDELBERG GERMANY WEIZMANN INST SCI IL-76100 REHOVOT ISRAEL POLITECN MILAN I-20133 MILAN ITALY KERNFYS VERSNELLER INST NL-9747 AA GRONINGEN NETHERLANDS GANIL F-14021 CAEN FRANCE BROOKHAVEN NATL LAB UPTON NY 11973 CERN CH-1211 GENEVA 23 SWITZERLAND
Titolo Testata:
EUROPEAN PHYSICAL JOURNAL C-PARTICLES AND FIELDS
fascicolo: 2, volume: 4, anno: 1998,
pagine: 249 - 257
SICI:
1434-6044(1998)4:2<249:NMPIPA>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRON-PAIR PRODUCTION; TRANSVERSE-MOMENTUM; PARTICLE PRODUCTION; NUCLEUS COLLISIONS; HADRONS; LEPTON; PI+/; TAPS; ISR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
G. Agakichiev et al., "NEUTRAL MESON PRODUCTION IN P-BE AND P-AU COLLISIONS AT 450 GEV BEAM ENERGY", EUROPEAN PHYSICAL JOURNAL C-PARTICLES AND FIELDS, 4(2), 1998, pp. 249-257

Abstract

In a joint experiment the TAPS and CERES collaborations have studied the production of the neutral mesons pi degrees; eta and omega in 450 GeV p-Be and p-Au collisions at the CERN SPS. The mesons were identified by their pi degrees --> gamma gamma, eta --> gamma gamma, and omega--> pi degrees gamma decay modes. The cross sections were measured down to very low p(T) (greater than or equal to 20 MeV/c) near mid-rapidity (3.0 <: y < 4.0). The eta and omega, cross sections are smaller than expected from extrapolations of earlier. data to low p(T). Integrated over all p(T), the ratios eta/pi degrees and omega/pi degrees are lower by about 25% compared to previously published values. The reduction may be attributed to the large number of low pr pions from decays of heavier mesons. In addition, we have studied the dependence of neutral meson production on the mass of the nuclear target and find it in good agreement with previous measurements of charged mesons.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 18:39:54