Study of decays of the. Lambda. sub c sup +

Journal Article · Thu Feb 01 04:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.801· OSTI ID:6981844

Anjos, J C; Appel, J A; Bean, A; Bracker, S B; Browder, T E; Cremaldi, L M; Duboscq, J E; Elliot, J R; Escobar, C O; Estabrooks, P; Gibney, M C; Hartner, G F; Karchin, P E; Kumar, B R; Losty, M J; Luste, G J; Mantsch, P M; Martin, J F; McHugh, S; Menary, S R ; Morrison, R J; Nash, T; Nauenberg, U; Ong, P; Pinfold, J; Punkar, G; Purohit, M V; Raab, J R; Santoro, A F.S.; Sidhu, J S; Sliwa, K; Sokoloff, M D; Souza, M H.G.; Spalding, W J; Streetman, M E; Stundzia, A B; Witherell, M S ^[1]

---

1. University of California, Santa Barbara, California 93106 (US) Carleton University, Ottawa, Ontario, Canada K1S5B6 Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil University of Colorado, Boulder, Colorado, 80309 Fermilab National Accelerator Laboratory, Batavia, Illinois 60510 National Research Council, Ottawa, Ontario, Canada K1A0R6 Universidade de Sao Paulo, Sao Paulo, Brazil University of Toronto, Toronto, Canada M5S1A7 Yale University, New Haven, C

We report measurements of the decays {Lambda}{sub {ital c}}{sup +}{r arrow}p{bar K} {sup 0}, {Lambda}{sub {ital c}}{sup +}{r arrow}p{bar K} {sup 0}{pi}{sup +}{pi}{sup {minus}}, {Lambda}{sub {ital c}}{sup +}{r arrow}{Lambda}{sup 0}{pi}{sup +}, and {Lambda}{sub {ital c}}{sup +}{r arrow}{Lambda}{sup 0}{pi}{sup +}{pi}{sup +}{pi}{sup {minus}} from Fermilab photoproduction experiment E691. We have measured the relative branching ratios {ital B}({Lambda}{sub {ital c}}{sup +}{r arrow}p{bar K}{sup 0})/{ital B} ({Lambda}{sub {ital c}}{sup +}{r arrow}pK{sup {minus}}{pi}{sup +})=0.55{plus minus}0.17{plus minus}0.14, {ital B}({Lambda}{sub {ital c}}{sup +}{r arrow}{Lambda}{sup 0}{pi}{sup +}{pi}{sup +}{pi}{sup {minus}}0)/ {ital B}({Lambda}{sub {ital c}}{sup +}{r arrow}{ital pK}{sup {minus}}{pi}{sup +})=0.82{plus minus}0.29{plus minus}0.27, {ital B}({Lambda}{sub {ital c}}{sup +}{r arrow}{Lambda}{sup 0}{pi}{sup +})/{ital B}({Lambda}{sub {ital c}}{sup +}{r arrow}{ital pK}{sup {minus}}{pi}{sup +}){lt}0.33 at 90% confidence level, and {ital B}({Lambda}{sub {ital c}}{sup +}{r arrow}p{bar K} {sup 0}{pi}{sup +}{pi}{sup {minus}})/{ital B}({Lambda}{sub {ital c}}{sup +}{r arrow}{ital pK}{sup {minus}}{pi}{sup +}){lt}1.7 at 90% confidence level.

• OSTI ID: 6981844
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:3; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIKAONS
ANTIKAONS NEUTRAL
ANTIMATTER
ANTIPARTICLES
BARYONS
BASIC INTERACTIONS
BOSONS
BRANCHING RATIO
BREMSSTRAHLUNG
CHARM PARTICLES
CHARMED BARYONS
CHERENKOV COUNTERS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 10-100
GEV RANGE 100-1000
HADRONS
HYPERONS
INTERACTIONS
KAONS
KAONS MINUS
KAONS NEUTRAL
LAMBDA BARYONS
LAMBDA C PLUS BARYONS
LAMBDA PARTICLES
MASS SPECTRA
MEASURING INSTRUMENTS
MESONS
NUCLEONS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PHOTOPRODUCTION
PIONS
PIONS MINUS
PIONS PLUS
PROBABILITY
PROTONS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
RADIATIONS
SPECTRA
STRANGE MESONS
STRANGE PARTICLES
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY