Noncommutative QCD corrections to the gluonic decays of heavy quarkonia

Details Noncommutative QCD corrections to the gluonic decays of heavy quarkonia Noncommutative QCD corrections to the gluonic decays of heavy quarkonia

2004-01-11

arxiv.org/abs/hep-ph/0401071v3

Phys.Lett. B588 (2004) 85-89

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version accepted for publication

Scientific paper

10.1016/j.physletb.2004.03.028

We compute the Noncommutative QCD (NCQCD) contributions to the three gluon decay modes of heavy quarkonia. For triplet quarkonia (ortho-quarkonia), the NCQCD correction to the QCD three gluon decay mode, like the standard model contribution, is infrared finite. In the case of singlet quarkonia (para-quarkonia), whose QCD three gluon decay mode has infrared singularities which are removed using one-loop corrections to the two gluon mode, we find that NCQCD contribution is also infrared finite. The calculations are performed in the weak binding limit and do not require the introduction of additional effective couplings.

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