Abstract
Lepton-quark contact interactions expected in composite theories can be tested using the forward-backward (F-B) asymmetry of charm or bottom hadrons in e+e- annihilation. Existing data on the F-B asymmetry of D* and D mesons can already set lower limits typically exceeding 1 TeV (95% CL) on the compositeness scale. These limits are better than those for pure quark contact interactions set by the CERN pp̄ collider experiments, and are comparable to purely leptonic ones obtained in e+e- annihilation experiments. The implication of bottom quark asymmetry in the presence of B0-B0 mixing is also briefly discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 369-374 |
| Number of pages | 6 |
| Journal | Physics Letters B |
| Volume | 219 |
| Issue number | 2-3 |
| DOIs | |
| Publication status | Published - Mar 16 1989 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Fingerprint Dive into the research topics of 'Limits on Lepton-quark contact interactions from the quark forward-backward asymmetry in e<sup>+</sup>e<sup>-</sup> annihilation'. Together they form a unique fingerprint.
Cite this
Hagiwara, K., Sakuda, M., & Terunuma, N. (1989). Limits on Lepton-quark contact interactions from the quark forward-backward asymmetry in e+e- annihilation. Physics Letters B, 219(2-3), 369-374. https://doi.org/10.1016/0370-2693(89)90406-1