An observation of an excited Lambda(c)(+*) baryon decaying to Lambda(c)(+)pi(+)pi(-), with Lambda(c)(+) --> pK(-)pi(+), is presented. We reconstruct 39.7+/-8.7 Lambda(c)(+*) baryons with a mass of 340.4+/-0.6+/-0.3 MeV/c(2) above the Lambda(c)(+) mass. The upper limit on the resonant branching ratio is B(Lambda(c)(+*) --> Sigma(c) pi(+/-))/B(Lambda(c)(+*) --> Lambda(c)(+)pi(+)pi(-)) < 36% at the 90% confidence level.

Frabetti, P., Cheung, H., Cumalat, J., Dallapiccola, C., Ginkel, J., Greene, S., et al. (1994). Observation of an excited state of the Λc+ baryon. PHYSICAL REVIEW LETTERS, 72(7), 961-964 [10.1103/PhysRevLett.72.961].

Observation of an excited state of the Λc+ baryon

Moroni L.;Gianini G.;
1994

Abstract

An observation of an excited Lambda(c)(+*) baryon decaying to Lambda(c)(+)pi(+)pi(-), with Lambda(c)(+) --> pK(-)pi(+), is presented. We reconstruct 39.7+/-8.7 Lambda(c)(+*) baryons with a mass of 340.4+/-0.6+/-0.3 MeV/c(2) above the Lambda(c)(+) mass. The upper limit on the resonant branching ratio is B(Lambda(c)(+*) --> Sigma(c) pi(+/-))/B(Lambda(c)(+*) --> Lambda(c)(+)pi(+)pi(-)) < 36% at the 90% confidence level.
Articolo in rivista - Articolo scientifico
QUARK-MODEL
English
1994
72
7
961
964
none
Frabetti, P., Cheung, H., Cumalat, J., Dallapiccola, C., Ginkel, J., Greene, S., et al. (1994). Observation of an excited state of the Λc+ baryon. PHYSICAL REVIEW LETTERS, 72(7), 961-964 [10.1103/PhysRevLett.72.961].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455212
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