Measurement of baryon production in B-meson decay

Authors

G. Crawford, The Ohio State University
R. Fulton, The Ohio State University
T. Jensen, The Ohio State University
D. R. Johnson, The Ohio State University
H. Kagan, The Ohio State University
R. Kass, The Ohio State University
R. Malchow, The Ohio State University
F. Morrow, The Ohio State University
J. Whitmore, The Ohio State University
P. Wilson, The Ohio State University
D. Bortoletto, Purdue University
D. Brown, Purdue University
J. Dominick, Purdue University
R. L. McIlwain, Purdue University
D. H. Miller, Purdue University
M. Modesitt, Purdue University
C. R. Ng, Purdue University
S. F. Schaffner, Purdue University
E. I. Shibata, Purdue University
I. P.J. Shipsey, Purdue University
M. Battle, University of Rochester
H. Kroha, University of Rochester
K. Sparks, University of Rochester
E. H. Thorndike, University of Rochester
C. H. Wang, University of Rochester
M. S. Alam, State University of New York Albany
I. J. Kim, State University of New York Albany
W. C. Li, State University of New York Albany
X. C. Lou, State University of New York Albany
B. Nemati, State University of New York Albany
V. Romero, State University of New York Albany

Document Type

Article

Publication Date

1-1-1992

Abstract

Using the CLEO detector at the Cornell Electron Storage Ring, we observe B-meson decays to c+ and report on improved measurements of inclusive branching fractions and momentum spectra of other baryons. For the inclusive decay Bc+X with c+pK-+, we find that the product branching fraction B(Bc+X)B(c+pK-+)=(0.273±0.051±0.039)%. Our measured inclusive branching fractions to noncharmed baryons are B(BpX)=(8.0±0.5±0.3)%, B(BX)=(3.8±0.4±0.6)%, and B(B-X)=(0.27±0.05±0.04)%. From these rates and studies of baryon-lepton and baryon-antibaryon correlations in B decays, we have estimated the branching fraction B(Bc+X) to be (6.40.8±0.8)%. Combining these results, we calculate B(c+pK-) to be (4.3±1.0±0.8)%. © 1992 The American Physical Society.

Recommended Citation

Crawford, G.; Fulton, R.; Jensen, T.; Johnson, D. R.; Kagan, H.; Kass, R.; Malchow, R.; Morrow, F.; Whitmore, J.; Wilson, P.; Bortoletto, D.; Brown, D.; Dominick, J.; McIlwain, R. L.; Miller, D. H.; Modesitt, M.; Ng, C. R.; Schaffner, S. F.; Shibata, E. I.; Shipsey, I. P.J.; Battle, M.; Kroha, H.; Sparks, K.; Thorndike, E. H.; Wang, C. H.; Alam, M. S.; Kim, I. J.; Li, W. C.; Lou, X. C.; Nemati, B.; and Romero, V., "Measurement of baryon production in B-meson decay" (1992). Physics Faculty Publications. 63.
https://digitalcommons.bowdoin.edu/physics-faculty-publications/63