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

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.

6 pages, 5 figures included; some comments included, final version to appear in Phys. Rev. D

References in corpus (5)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• The Standard Model on Non-Commutative Space-Time: Electroweak Currents and Higgs Sector
• Testing the Noncommutative Standard Model at a Future Photon Collider
• The Standard Model on Non-Commutative Space-Time: Strong Interactions Included
• Rare and forbidden decays

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