Measurement of the. Lambda. sub c sup + decay-asymmetry parameter

We report a measurement of {Lambda} polarization in the two-body decay {Lambda}{sub {ital c}}{sup +}{r arrow}{Lambda}{pi}{sup +}, in nonresonant {ital e}{sup +}{ital e}{sup {minus}} interactions from data taken with the CLEO detector. Using these data we have determined the parity-violating asymmetr...

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Bibliographic Details
Published in:Physical review letters 1990-12, Vol.65:23
Main Authors: Avery, P., Besson, D., Garren, L., Yelton, J., Kinoshita, K., Pipkin, F.M., Procario, M., Wilson, R., Wolinski, J., Xiao, D., Zhu, Y., Ammar, R., Baringer, P., Coppage, D., Davis, R., Haas, P., Kelly, M., Kwak, N., Lam, H., Ro, S., Kubota, Y., Nelson, J.K., Perticone, D., Poling, R., Fulton, R., Jensen, T., Johnson, D.R., Kagan, H., Kass, R., Morrow, F., Whitmore, J., Wilson, P., Bortoletto, D., Chen, W., Dominick, J., McIlwain, R.L., Miller, D.H., Ng, C.R., Schaffner, S.F., Shibata, E.I., Shipsey, I.P.J., Yao, W., Battle, M., Sparks, K., Thorndike, E.H., Wang, C., Alam, M.S., Kim, I.J., Li, W.C., Romero, V., Sun, C.R., Wang, P., Zoeller, M.M., Goldberg, M., Haupt, T., Horwitz, N., Jain, V., Mestayer, M.D., Moneti, G.C., Rozen, Y., Rubin, P., Sharma, V., Skwarnicki, T., Thulasidas, M., Zhu, G., Barnes, A.V., Csorna, S.E., Letson, T., Alexander, J., Artuso, M., Bebek, C., Berkelman, K., Browder, T., Cassel, D.G., Cheu, E., Coffman, D.M., Crawford, G., DeWire, J.W., Drell, P.S., Ehrlich
Format: Article
Language:English
Subjects:
645101 - High Energy Physics- Particle Interactions & Properties-Experimental- Electromagnetic Interactions & Properties
645102 - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties
ANGULAR DISTRIBUTION
BARYONS
BOSONS
CHARM PARTICLES
CHARMED BARYONS
DATA
DECAY
DISTRIBUTION
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 01-10
HADRONIC PARTICLE DECAY
HADRONS
INFORMATION
INTERACTIONS
LAMBDA C PLUS BARYONS
LEPTON-LEPTON INTERACTIONS
MESONS
MONTE CARLO METHOD
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PIONS
PIONS PLUS
POLARIZATION
PSEUDOSCALAR MESONS
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Description
Summary:We report a measurement of {Lambda} polarization in the two-body decay {Lambda}{sub {ital c}}{sup +}{r arrow}{Lambda}{pi}{sup +}, in nonresonant {ital e}{sup +}{ital e}{sup {minus}} interactions from data taken with the CLEO detector. Using these data we have determined the parity-violating asymmetry decay parameter {alpha}{sub {Lambda}{ital c}} to be {minus}1.0{sub {minus}0.0}{sup +0.4}. We see no evidence for significant {Lambda}{sub {ital c}}{sup +} polarization.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.65.2842