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Quarkonia decays into two photons induced by the space-time non-commutativity

B. Melic·K. Passek-Kumericki·J. Trampetic
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Abstract

In this article we propose standard model strictly forbidden decay modes, quarkonia (QQ(1^{--}) = J/psi, Upsilon) decays into two photons, as a possible signature of the space-time non-commutativity. An experimental discovery of J/psi -> gamma gamma and/or Upsilon -> gamma gamma processes would certainly indicate a violation of the Landau-Pomeranchuk-Yang theorem and a definitive appearance of new physics.

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B. Melic, K. Passek-Kumericki, J. Trampetic. 2005-09-06. Quarkonia decays into two photons induced by the space-time non-commutativity. https://doi.org/10.1103/physrevd.72.054004

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