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VOLUME 60 (1994) | ISSUE 2 | PAGE 75
Consequences of the symmetry breaking in the f-quark electromagnetic vertex for f-quark production in \bar{p}p collisions
In the framework of a model of dynamical breaking of the electroweak symmetry the possibility of obtaining a large /-quark mass due to chiral symmetry breaking in the electromagnetic vertex of the t quark is considered. The self-consistent set of equations is considered for a value of an anomalous magnetic moment. The essential part of the set is connected with the due appearance of a Goldstone pseudoscalar. Solution of the set gives values of the anomalous moment Ë and the coupling constant of the pseudoscalar with the / quark, depending on the high-energy cutoff. The main consequences of a large Ë, Ë-1, especially for the /-quark production in the Tevatron experiments are discussed. The mechanism results in additional contribution to the /-quark production cross section, which gives, e.g., —10 pb for M, = 170 GeV, Ë=1, consistent with the existing data. The cross section for the process pp-Mty and the p, distribution of Õ are also calculated. The results can be assumed to provide the best restrictions for the value of Ë of the anomalous magnetic moment of /. On the other hand, this approach gives definite predictions for the /-quark quest, which could be compared with the existing and forthcoming data.