Noncommutative QED and the Lifetimes of Ortho and Para Positronium

Simple item page
dc.creatorCaravati, Mauro
dc.creatorDevoto, Alberto
dc.creatorRepko, Wayne W.
dc.date2002-11-29
dc.date2002-12-09
dc.date.accessioned2026-07-07T11:31:21Z
dc.date.available2026-07-07T11:31:21Z
dc.descriptionWe examine the implications of including corrections associated with the noncommutative extension of quantum electrodynamics - NCQED - to the decays of the ortho and para positronium (\Trip and \Sing) ground states. In NCQED, the well known charge conjugation argument restricting \Trip decays to an odd number of photons and \Sing decays to an even number of photons no longer obtains. Instead, the dominant two photon decay mode of \Sing is accompanied by a three photon mode. The dominant three photon decay mode of \Trip receives a NCQED correction, but there is no corresponding two photon decay mode in the weak binding limit. These corrections to the $P_s$ three photon decay mode have a different energy distribution, but their effect is too small to explain any discrepancy between the observed and calculated values of the \Trip lifetime.
dc.descriptionAdditional references
dc.identifierhttps://arxiv.org/abs/hep-ph/0211463
dc.identifierhttp://arxiv.org/abs/hep-ph/0211463
dc.identifierPhys.Lett.B556:123-128,2003
dc.identifierdoi:10.1016/S0370-2693(03)00126-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197239
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNoncommutative QED and the Lifetimes of Ortho and Para Positronium
dc.typetext

Files

Collections

arXiv