Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-01-24
Phys.Lett.B375:292-300,1996
Physics
High Energy Physics
High Energy Physics - Phenomenology
10 pages, latex, 4 eps figures. Revised version, including corrected typos in figures and formulas, and addendum on low energy
Scientific paper
10.1016/0370-2693(96)00237-7
We show that the reported anomalies in $R_b$ and $R_c$ can be interpreted as
the effect of a heavy vector boson \zprime\ universally coupled to $u$- and
$d$-type quarks separately and nearly decoupled from leptons. This extra vector
boson could then also naturally explain the apparent excess of the jet rate at
large transverse momentum observed at CDF.
Altarelli Guido
Bartolomeo Nicola Di
Feruglio Ferruccio
Gatto Raoul
Mangano Michelangelo M.
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