arXiv:hep-ex/0402026 Abstract

arXiv:hep-ex/0402026Abstract References Reviews Resources

Upper limit on the decay Sigma(1385)- --> Sigma- gamma, and cross section for gamma Sigma- --> Lambda pi-

Published 2004-02-14, updated 2004-04-02Version 2

Coherent Lambda pi- production on Pb of 600 GeV Sigma- hyperons has been studied with the SELEX facility at Fermilab. Using the Primakoff formalism, we set a 90% CL upper limit on the radiative decay width Gamma [Sigma(1385)- --> Sigma- gamma] < 9.5 keV, and estimate the cross section for gamma Sigma- --> Lambda pi- at sqrt(s) = 1.385 GeV to be 56+/-16 mkb.

Comments: 13 pages, 3 figures, LaTeX, few clarifications, accepted by Phys.Lett.B

Journal: Phys.Lett.B590:161-169,2004

DOI: 10.1016/j.physletb.2004.04.006

Categories: hep-ex

Subjects: 13.30.Ce, 13.40.Hq, 14.20.Jn

Keywords: cross section, decay sigma, radiative decay width gamma, cl upper limit, coherent lambda

Tags: journal article

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