Production asymmetry of D-s from 600 GeV/c Sigma(-) and pi(-) beam


Kaya M., Alkhazov G., Atamantchouk A., Balatz M., Bondar N., Cooper P., ...More

PHYSICS LETTERS B, vol.558, pp.34-40, 2003 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 558
  • Publication Date: 2003
  • Doi Number: 10.1016/s0370-2693(03)00246-6
  • Journal Name: PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.34-40
  • Istanbul University Affiliated: No

Abstract

The production of D-S(-) relative to D-S(+) as a function of x(F) with 600 GeV/c Sigma(-) beam is measured in the interval 0.15 < x(F) < 0.7 by the SELEX (E781) experiment at Fermilab. The integrated charge asymmetries with 600 GeV/c Sigma(-) beam (0.53 +/- 0.06) and pi(-) beam (0.06 +/- 0.11) are also compared. The results show the Sigma(-) beam fragments play a role in the production of D-S(-), as suggested by the leading quark model. (C) 2003 Elsevier Science B.V. All rights reserved.