Phys. Rev. Lett.
65,
2842–2845
(1990)
Measurement of the Λc+ decay-asymmetry parameter
P. Avery et al.
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P. Avery, D. Besson, L. Garren, J. Yelton, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, Y. Zhu, R. Ammar, P. Baringer, D. Coppage, R. Davis, P. Haas, M. Kelly, N. Kwak, Ha Lam, S. Ro, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, R. Fulton, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, P. Wilson, D. Bortoletto, W.-Y. Chen, J. Dominick, R. L. McIlwain, D. H. Miller, C. R. Ng, S. F. Schaffner, E. I. Shibata, I. P. J. Shipsey, W.-M. Yao, M. Battle, K. Sparks, E. H. Thorndike, C.-H. Wang, M. S. Alam, I. J. Kim, W. C. Li, V. Romero, C. R. Sun, P.-N. Wang, M. M. Zoeller, M. Goldberg, T. Haupt, N. Horwitz, V. Jain, M. D. Mestayer, G. C. Moneti, Y. Rozen, P. Rubin, V. Sharma, T. Skwarnicki, M. Thulasidas, G. Zhu, A. V. Barnes, S. E. Csorna, T. Letson, J. Alexander, M. Artuso, C. Bebek, K. Berkelman, T. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, G. Crawford, J. W. DeWire, P. S. Drell, R. Ehrlich, R. S. Galik, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, K. Honscheid, J. Kandaswamy, N. Katayama, D. L. Kreinick, J. D. Lewis, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, S. Nandi, E. Nordberg, C. O’Grady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, A. Silverman, S. Stone, H. Worden, M. Worris, and A. J. Sadoff
University of Florida, Gainesville, Florida 32611
Harvard University, Cambridge, Massachusetts 02138
University of Kansas, Lawrence, Kansas 66045
University of Minnesota, Minneapolis, Minnesota 55455
Ohio State University, Columbus, Ohio 43210
Purdue University, West Lafayette, Indiana 47907
University of Rochester, Rochester, New York 14627
State University of New York at Albany, Albany, New York 12222
Syracuse University, Syracuse, New York 13244
Vanderbilt University, Nashville, Tennessee 37235
Cornell University, Ithaca, New York 14853
Ithaca College, Ithaca, New York 14850
Received 10 August 1990; published in the issue dated 3 December 1990
We report a measurement of Λ polarization in the two-body decay Λc+→Λπ+, in nonresonant e+e- interactions from data taken with the CLEO detector. Using these data we have determined the parity-violating asymmetry decay parameter αΛc to be -1.0-0.0+0.4. We see no evidence for significant Λc+ polarization.
© 1990 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.65.2842
DOI:
10.1103/PhysRevLett.65.2842
PACS:
14.20.Kp, 11.30.Er, 13.30.Eg, 13.88.+e
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