Anomalous Quark Chromomagnetic Moment Induced by Instantons

Details Anomalous Quark Chromomagnetic Moment Induced by Instantons Anomalous Quark Chromomagnetic Moment Induced by Instantons

1996-10-31

arxiv.org/abs/hep-ph/9610551v2

Phys.Lett. B426 (1998) 149-153

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, Latex, no figures. Talk presented at the XIII International Seminar on High Energy Physics Problems, 2-7 September, D

Scientific paper

10.1016/S0370-2693(98)00262-7

It is shown that the quark-gluon interaction induced by instantons leads to
the quark anomalous chromomagnetic moment. In the instanton-liquid model for
the QCD vacuum, the chromomagnetic moment is $\mu_a=-\frac{\pi f}{2\alpha_s}$,
where f is the packing fraction of instantons in the vacuum.

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