PION ASYMMETRY IN D-UP-ARROW-]PI(+(A)-)+X PROCESSES AT PION-EMISSION ANGLES NEAR THETA(PI)=90-DEGREES/

Authors
AVERICHEV GS AGAKISHIEV G AMELIN NS BORZUNOV YT GHIORDANESKU N GOLOVANOV LB GUSEINALIEV JG MINAEV YI MOROZ NS NIKIFOROV AS PANEBRATSEV YA PENTIA M POTREBENIKOVA EV RAZIN SV SAVELJIC N SKORO G SHAHALIEV EI SHIMANSKIY SS SULEIMANOV MK TOKAREV MV TSVETKOV IO YUREVICH VI ZBOROVSKY I ZVINEV AP
Citation
Gs. Averichev et al., PION ASYMMETRY IN D-UP-ARROW-]PI(+(A)-)+X PROCESSES AT PION-EMISSION ANGLES NEAR THETA(PI)=90-DEGREES/, Physics of atomic nuclei, 60(10), 1997, pp. 1643-1649
Citations number
33
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields
Journal title
Physics of atomic nuclei → ACNP
ISSN journal
10637788
Volume
60
Issue
10
Year of publication
1997
Pages
1643 - 1649
Database
ISI
SICI code
1063-7788(1997)60:10<1643:PAIDPA>2.0.ZU;2-F
Abstract
The vector analyzing power of inclusive pions produced in collisions o f polarized deuterons with various targets (H and C) at angles of abou t 90 degrees in the laboratory frame is measured for the first time at incident-beam momenta from 3 to 9 GeV/c, The measurements are perform ed at the synchrophasotron installed at JINR (Dubna). A value of the v ector analyzing power and the pi(+) and pi(-) asymmetries of opposite signs are observed in d up arrow + H --> pi(+/-) + X reactions at rela tively low beam momenta and pion momenta in the range 300-350 MeV/c, E vidence for nonzero values of the vector analyzing power are obtained in d up arrow + C pi(+/-) + X reactions. The results of Monte Carlo si mulations indicate that the kinematical region where the analyzing pow er is found to be large is dominated by channels featuring intermediat e Delta isobars.