Measurement of the Masses and Widths of the Sigma_c^++ and Sigma_c^0 Charmed Baryons

Preprint

30 October 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0110071

Abstract

Using data recorded by the CLEO II and CLEO II.V detector configurations at CESR, we report new measurements of the masses of the Sigma_c^{++} and Sigma_c^0 charmed baryons, and the first measurements of their intrinsic widths. We find M(Sigma_c^{++}) - M(Lambda_c^+) = 167.4 +- 0.1 +- 0.2 MeV, Gamma(Sigma_c^{++}) = 2.3 +- 0.2 +- 0.3 MeV, and M(Sigma_c^0) - M(Lambda_c^+) = 167.2 +- 0.1 +- 0.2 MeV, Gamma(Sigma_c^0) = 2.5 +- 0.2 +- 0.3 MeV, where the uncertainties are statistical and systematic, respectively.

Keywords

DETECTOR CONFIGURATIONS
CHARMED BARYONS
BARYONS USING
UNCERTAINTIES
STATISTICAL
LAMBDA_C
SIGMA_C
CLEO

All Related Versions

Version 1, 2001-10-29, ArXiv
Version 2, 2001-10-30, ArXiv
Published version: Physical Review D, 65 (7), 071101.

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