We report evidence for the Cabibbo-suppressed decay of the charm baryon Λc+ into the final state pK-K+. The analysis is performed on data collected by high energy photoproduction experiment E687 during the 1990-1991 Fermilab fixed target run. The branching ratio of the decay Λc+ → pK-K+ relative to the non-suppressed Λc+ → pK-π+ is measured to be BR(pK-K+/pK-π+) = 0.096 ± 0.029 ± 0.010. The upper limit of the decay into pø relative to the inclusive pK-K+ decay is measured to be BR(pø/pK-K+ < 58% at the 90% confidence level.

Frabetti, P., Cheung, H., Cumalat, J., Dallapiccola, C., Ginkel, J., Greene, S., et al. (1993). Evidence of the Cabibbo-suppressed decay Λc+ → pK-K+. PHYSICS LETTERS. SECTION B, 314(3-4), 477-481 [10.1016/0370-2693(93)91267-Q].

Evidence of the Cabibbo-suppressed decay Λc+ → pK-K+

Gianini G.;
1993

Abstract

We report evidence for the Cabibbo-suppressed decay of the charm baryon Λc+ into the final state pK-K+. The analysis is performed on data collected by high energy photoproduction experiment E687 during the 1990-1991 Fermilab fixed target run. The branching ratio of the decay Λc+ → pK-K+ relative to the non-suppressed Λc+ → pK-π+ is measured to be BR(pK-K+/pK-π+) = 0.096 ± 0.029 ± 0.010. The upper limit of the decay into pø relative to the inclusive pK-K+ decay is measured to be BR(pø/pK-K+ < 58% at the 90% confidence level.
Articolo in rivista - Articolo scientifico
Physics
English
1993
314
3-4
477
481
none
Frabetti, P., Cheung, H., Cumalat, J., Dallapiccola, C., Ginkel, J., Greene, S., et al. (1993). Evidence of the Cabibbo-suppressed decay Λc+ → pK-K+. PHYSICS LETTERS. SECTION B, 314(3-4), 477-481 [10.1016/0370-2693(93)91267-Q].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/456020
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