Production of omega mesons in proton-proton collisions

Citation
Sa. El-samad et al., Production of omega mesons in proton-proton collisions, PHYS LETT B, 522(1-2), 2001, pp. 16-21
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
0370-2693 → ACNP
Volume
522
Issue
1-2
Year of publication
2001
Pages
16 - 21
Database
ISI
SICI code
0370-2693(200112)522:1-2<16:POOMIP>2.0.ZU;2-4
Abstract
The cross section for the production of omega mesons in proton-proton colli sions has been measured in a previously unexplored region of incident energ ies. Cross sections of sigma = (7.5 +/-1.9) mub and sigma = (30.8 +/-3.4) m ub (with 20% systematic uncertainties) were extracted at epsilon = 92 MeV a nd 173 MeV excess energy above the omega threshold, respectively. The angul ar distribution of the omega at epsilon = 173 MeV is strongly anisotropic, demonstrating the importance of partial waves beyond pure s-wave production at this energy. (C) 2001 Elsevier Science B.V. All rights reserved.