Production Asymmetry of $D_s$ from 600 GeV/c ${\Sigma }^{-}$ and ${\pi }^{-}$ beam

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 ($0.53\pm 0.06$) and ${\pi }^{-}$ beam ($0.06\pm 0.11$) 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.

11 pages, 5 figures, submitted to Physics Letter B

References in corpus (3)

• Production and Hadronization of Heavy Quarks
• Hadronic Production of Lambda_c from 600 GeV/c pion, sigma and proton beams
• Measurement of the Ds lifetime

Cited by in corpus (4)

• Confirmation of the Double Charm Baryon Xi_cc+ via its Decay to p D+ K-
• First observation of a narrow charm-strange meson DsJ(2632) -> Ds eta and D0 K+
• Nuclear Dependence of Charm Production
• D* and D Meson Production in Muon Nucleon Interactions at 160 GeV/c