Search for millicharged particles in reactor neutrino experiments: a probe of the PVLAS anomaly

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dc.creatorGninenko, S. N.
dc.creatorKrasnikov, N. V.
dc.creatorRubbia, A.
dc.date2006-12-17
dc.date2007-03-29
dc.date.accessioned2026-07-07T11:22:21Z
dc.date.available2026-07-07T11:22:21Z
dc.descriptionIt has been recently suggested that the vacuum magnetic dichroism observed by the PVLAS experiment could be explained by the pair production of a new light, m ~0.1 eV, millicharged, q ~ 3 10^{-6} e, fermions. In addition, it has been pointed out that millicharged particles with q > 10^{-9} e appear naturally in models based on the string theory. We show that low energy reactor neutrino experiments provide a sensitive probe of millicharged particles. Considering, as an example, recent results of the TEXONO experiment searching for neutrino magnetic moment, a new upper bound q < 10^{-5} e for the mass region m < 1 keV is derived. These results enhance motivations for a more sensitive search for such particles in near future experiments. Furthemore, a direct experimental limit on the electric charge of the electron antineutrino q < 3.7 10^{-12} e is obtained.
dc.description4 pages, version to appear in PRD
dc.identifierhttps://arxiv.org/abs/hep-ph/0612203
dc.identifierhttp://arxiv.org/abs/hep-ph/0612203
dc.identifierPhys.Rev.D75:075014,2007
dc.identifierdoi:10.1103/PhysRevD.75.075014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194539
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSearch for millicharged particles in reactor neutrino experiments: a probe of the PVLAS anomaly
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