Study of the decays [Lambda][sub [ital c]][sup +][r arrow][Xi][sup 0][ital K+], [Lambda][sub [ital c]][sup +][r arrow][Sigma][sup +][ital K+][ital K[minus]], and [Lambda][sub [ital c]][sup +][r arrow][Xi][sup [minus]][ital K+][pi][sup +]

Journal Article · Mon Oct 11 04:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.2391· OSTI ID:5917628

Avery, P; Freyberger, A; Rodriguez, J; Stephens, R; Yelton, J; Cinabro, D; Henderson, S; Kinoshita, K; Liu, T; Saulnier, M; Wilson, R; Yamamoto, H; Ong, B; Selen, M; Sadoff, A J; Ammar, R; Ball, S; Baringer, P; Coppage, D; Copty, N ; Davis, R; Hancock, N; Kelly, M; Kwak, N; Lam, H; Kubota, Y; Lattery, M; Nelson, J K; Patton, S; Perticone, D; Poling, R; Savinov, V; Schrenk, S; Wang, R; Alam, M S; Kim, I J; Nemati, B; O'Neill, J J; Romero, V; Severini, H; Sun, C R; Zoeller, M M; Crawford, G; Daubenmier, C M; Fulton, R; Fujino, D; Gan, K K; Honscheid, K; Kagan, H; Kass, R; Lee, J; Malchow, R; Morrow, F; Skovpen, Y; Sung, M; White, C; Whitmore, J; Wilson, P; Butler, F; Fu, X; Kalbfleisch, G; Lambrecht, M; Ross, W R; Skubic, P; Snow, J; Wang, P L; Wood, M; Bortoletto, D; Brown, D N; Fast, J; McIlwain, R L; Miao, T; Miller, D H; Modesitt, M; Schaffner, S F; Shibata, E I; Shipsey, I P.J.; Wang, P N; Battle, M; Ernst,

We report the measurement of new modes of the charmed baryon [Lambda][sub [ital c]][sup +] using data recorded by the CLEO II detector at the Cornell Electron Storage Ring. We find branching ratios, relative to [Lambda][sub [ital c]][sup +][r arrow][ital pK][sup [minus]][pi][sup +], of 0.070[plus minus]0.011[plus minus]0.011 for [Lambda][sub [ital c]][sup +][r arrow][Sigma][sup +][ital K+][ital K[minus]], 0.069[plus minus]0.023[plus minus]0.016 for [Lambda][sub [ital c]][sup +][r arrow][Sigma][phi], 0.078[plus minus]0.013[plus minus]0.013 for [Lambda][sub [ital c]][sup +][r arrow][Xi][sup 0][ital K+], and 0.053[plus minus]0.016[plus minus]0.010 for [Lambda][sub [ital c]][sup +][r arrow][Xi][sup *0][ital K+]. These measurements indicate that [ital W]-exchange diagrams contribute to [Lambda][sub [ital c]][sup +] decay. We have also made a new measurement of the previously found mode [Lambda][sub [ital c]][sup +][r arrow][Xi][sup [minus]][ital K+][pi][sup +].

• OSTI ID: 5917628
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:15; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

662350* -- Decays of Mesons-- (1992-)
662410 -- Properties of Baryons & Baryon Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED BARYONS
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HYPERONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
KAONS
KAONS MINUS
KAONS PLUS
LAMBDA C PLUS BARYONS
MESONS
NUCLEONS
PARTICLE DECAY
PROTONS
PSEUDOSCALAR MESONS
SIGMA BARYONS
STRANGE MESONS
STRANGE PARTICLES
W MINUS BOSONS
W PLUS BOSONS
XI BARYONS