AZIMUTHAL ASYMMETRY OF NEUTRAL PION EMISSION IN AU-GEV NUCLEON(AU REACTIONS AT 1)

Authors
VENEMA LB BRAAK H LOHNER H RASCHKE AE SIEMSSEN RH SUMBERA M WILSCHUT HW BERG FD KUHN W METAG V NOTHEISEN M NOVOTNY R PFEIFFER M RITMAN J SCHWALB O GOBBI A HILDENBRAND KD HLAVAC S HOLZMANN R SIMON RS SODAN U TEH K WESSELS JP HERRMANN N WIENOLD T KOTTE R MOSNER J NEUBERT W WOHLFARTH D OSTENDORF R SCHUTZ Y BRUMMUND N SANTO R
Citation
Lb. Venema et al., AZIMUTHAL ASYMMETRY OF NEUTRAL PION EMISSION IN AU-GEV NUCLEON(AU REACTIONS AT 1), Physical review letters, 71(6), 1993, pp. 835-838
Citations number
22
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
71
Issue
6
Year of publication
1993
Pages
835 - 838
Database
ISI
SICI code
0031-9007(1993)71:6<835:AAONPE>2.0.ZU;2-P
Abstract
The azimuthal angle distributions of neutral pions at midrapidity from Au+Au reactions at 1 GeV/nucleon incident energy have been measured. An enhanced emission of pi0's perpendicular to the reaction plane is o bserved. The azimuthal asymmetry is dependent on the pi0 momentum: the pi0 spectrum perpendicular to the reaction plane is harder than in th e reaction plane. The strength of the observed asymmetry appears to be more pronounced for pi0 than for charged particles and neutrons.