Measurement of forward-backward charge asymmetry in the process of b-quark production in e +e - annihilation around √ s=60 GeV
Abstract
We have measured the forward-backward charge asymmetry in the process of b-quark production in e +e - annihilation at TRISTAN. It was made possible by detecting prompt leptons from b-quarks. The obtained asymmetry is A= -0.55±0.15±0.08. If corrected for B-meson mixing effects with the assumptions given in the text, the asymmetry becomes A= f-0.78±0.21±0.11, which is consistent with the prediction of the standard model, namely the assignment of the b-quark to the isospin doublet of the third quark generation.
- Publication:
-
Physics Letters B
- Pub Date:
- April 1992
- DOI:
- 10.1016/0370-2693(92)90592-R
- Bibcode:
- 1992PhLB..278..499S