Cassel, D.G.
E+ E- --> P K- PI+ X
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Observation of the Cabibbo suppressed charmed baryon decay lambda(c)+ ---> p phi

The CLEO collaboration Alexander, J.P. ; Bebek, C. ; Berger, B.E. ; et al.
Phys.Rev.D 53 (1996) 1013-1017, 1996.
Inspire Record 397665 DOI 10.17182/hepdata.47234

We report the observation of the Cabibbo-suppressed decays \lcpkk\ and \lcpphi\ using data collected with the CLEO II detector at CESR. The latter mode, observed for the first time with significant statistics, is of interest as a test of color-suppression in charm decays. We have determined the branching ratios for these modes relative to \lcpkpi\ and compared our results with theory.

1 data table
Table 1

Branching ratio of Cabibbo-suppressed and resolved modes.


New decay modes of the Lambda(c)+ charm baryon

The CLEO collaboration Ammar, R. ; Baringer, Philip S. ; Bean, A. ; et al.
Phys.Rev.Lett. 74 (1995) 3534-3537, 1995.
Inspire Record 392228 DOI 10.17182/hepdata.47094

We have observed five new decay modes of the charmed baryon Λc+ using data collected with the CLEO II detector. Four decay modes, Λc+→pK¯0η, Ληπ+, Σ+η, and Σ*+η, are first observations of final states with an η meson, while the fifth mode, Λc+→ΛK¯0K+, requires the creation of an ss¯ quark pair. We measure the branching fractions of these modes relative to Λc+→pK−π+ to be 0.25±0.04±0.04, 0.35±0.05±0.06, 0.11±0.03±0.02, 0.17±0.04±0.03, and 0.12±0.02±0.02, respectively.

5 data tables
Table 1

Integrated luminosity of 3.25 fb-1 have used, which corresponds to about 4 million C CBAR events.. Here X=P(LAMBDA/C)/sqrt(Ebeam**2-M(LAMBDA/C)**2).

Table 2

Integrated luminosity of 3.25 fb-1 have used, which corresponds to about 4 million C CBAR events.. Here X=P(LAMBDA/C)/sqrt(Ebeam**2-M(LAMBDA/C)**2).

Table 3

Integrated luminosity of 3.25 fb-1 have used, which corresponds to about 4 million C CBAR events.. Here X=P(LAMBDA/C)/sqrt(Ebeam**2-M(LAMBDA/C)**2).

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