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Titolo:
SOFT PHOTON PRODUCTION IN 450-GEV C P-BE COLLISIONS/
Autore:
ANTOS J; BEKER H; BRONS S; BUSSMANN K; DAGAN S; DREES A; ERD C; ESTEN MJ; FABJAN CW; GLASSEL P; GOERLACH U; HEDBERG V; LISSAUER D; MAZZONI MA; MCCUBBIN NA; NEUBERT M; NEVSKI P; OLSEN L; PFEIFFER A; RAY A; SCHUKRAFT J; SHAPIRA D; SOLTANI J; SPECHT HJ; STUMER I; THOMPSON J; VEENHOF RJ; WILLIS WJ; WOODY C;
Indirizzi:
CERN CH-1211 GENEVA 23 SWITZERLAND BROOKHAVEN NATL LAB UPTON NY 11973 UNIV HEIDELBERG D-69120 HEIDELBERG GERMANY MOSCOW PHYS & ENGN INST MOSCOW 115409 RUSSIA OAK RIDGE NATL LAB OAK RIDGE TN 37831 UNIV PITTSBURGH PITTSBURGH PA 15260 RUTHERFORD APPLETON LAB DIDCOT OX11 0QX OXON ENGLAND UNIV LONDON UNIV COLL LONDON WC1E 6BT ENGLAND UNIV TEL AVIV IL-9978 RAMAT AVIV ISRAEL
Titolo Testata:
Zeitschrift fur Physik. C, Particles and fields
fascicolo: 4, volume: 59, anno: 1993,
pagine: 547 - 553
SICI:
0170-9739(1993)59:4<547:SPPI4C>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
LOW TRANSVERSE-MOMENTUM; PI+P INTERACTIONS; PROMPT POSITRONS; GEV-C; K+P;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
J. Antos et al., "SOFT PHOTON PRODUCTION IN 450-GEV C P-BE COLLISIONS/", Zeitschrift fur Physik. C, Particles and fields, 59(4), 1993, pp. 547-553

Abstract

We have measured the inclusive p(T) spectra of soft photons produced at central and backward rapidities in 450 GeV/c p-Be collisions down to 1 MeV/c in transverse momentum. In the region 1 < p(T) < 20 MeV/c anexcess of photons over those expected from hadronic decays is observed. This excess is comparable, within systematic errors, with estimatesof direct photons produced via hadronic bremsstrahlung. An upper limit is derived on the presence of additional sources of direct photons at small transverse momentum.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 16:46:17