Can We Observe Weak Anomalous Couplings of Heavy Quarks Through Three Jet Events?

Details Can We Observe Weak Anomalous Couplings of Heavy Quarks Through Three Jet Events? Can We Observe Weak Anomalous Couplings of Heavy Quarks Through Three Jet Events?

1995-07-25

arxiv.org/abs/hep-ph/9507415v1

Phys.Rev. D53 (1996) 2326-2336

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages with 9 embedded figures; gzipped, uuencoded postscript file. To obtain a copy of this paper send e-mail to techpub@sl

Scientific paper

10.1103/PhysRevD.53.2326

The rates and corresponding jet distributions for the decay $Z\to b\bar bg$ and the process $e^+e^-\to t\bar tg$ may be sensitive to anomalous dipole-like couplings of heavy quarks to the photon and $Z$. In the $b$-quark case, after updating our previous analysis on the constraints imposed by current experiments on $Zb\bar b$ anomalous couplings, we show that the variation of these couplings within their presently allowed ranges leads to rather minor modifications to the Standard Model expectations for $Z\to b\bar bg$ observables. In the $t$-quark case, significant deviations from the Standard Model predictions for $t\bar tg$ production at the Next Linear Collider are possible.

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