Title

Observation of two narrow states decaying into Ξ+cγ and Ξ0cγ

Document Type

Article

Publication Date

1-1-1999

Abstract

We report the first observation of two narrow charmed strange baryons decaying to Ξ γ and Ξ γ, respectively, using data from the CLEO II detector at the Cornell Electron Storage Ring. We interpret the observed signals as the Ξ (c(u)) and Ξ γ(c(sd)), the symmetric partners of the well-established antisymmetric Ξ (c[su]) and Ξ (c[sd]). The mass differences M(Ξ )-M(Ξ ) and M(Ξ )-M(Ξ ) have been measured to be 107.8±1.7±2.5 and 107.0±1.4±2.5MeV/c , respectively. © 1999 The American Physical Society. + 0 +′ 0′ + 0 +′ + 0′ 0 2 c C c c c c c c c c

Publication Name

Physical Review Letters

Volume Number

82

First Page

492

Last Page

496

Issue Number

3

DOI

10.1103/PhysRevLett.82.492

This document is currently not available here.

Share

COinS