Particle physics implications of the WMAP neutrino mass bound

Abstract

The recently published cosmological bound on the absolute neutrino masses obtained from the Wilkinson Microwave Anisotropy Probe (WMAP) data has important consequences for neutrino experiments and models. Taken at face value, the new bound excludes the determination of the absolute neutrino mass in the KATRIN experiment and disfavors a neutrino oscillation interpretation of the LSND experiment. Combined with the KamLAND and Super-K data, the WMAP bound defines an accessible range for the neutrinoless double beta decay amplitude. The bound also impacts the Z-burst annihilation mechanism for resonant generation of extreme-energy cosmic rays on the cosmic neutrino background in two ways: it constrains the local overdensity of neutrino dark matter which is not helpful, but it also limits the resonant energy to a favorable range. In R-parity violating SUSY models neutrino masses are generated by trilinear and bilinear lepton number violating couplings. The WMAP result improves the constraints on these couplings over their existing values by an order of magnitude.

12 pages, 4 figures, some remarks and references added, version to be published in PLB

References in corpus (4)

• Upper limits on neutrino masses from the 2dFGRS and WMAP: the role of priors
• KamLAND and solar neutrino data eliminate the LOW solution
• Status of Evidence for Neutrinoless Double Beta Decay
• Addendum to: Update on neutrino mixing in the early Universe

Cited by in corpus (12)

• Theory of Neutrinos: A White Paper
• Progress in the physics of massive neutrinos
• Upper limits on neutrino masses from the 2dFGRS and WMAP: the role of priors
• Escape from washing out of baryon number in a two-zero-texture general Zee model compatible with the large mixing angle MSW solution
• Neutrino masses from beta decays after KamLAND and WMAP (Updated including the NC enhanced SNO data)
• Higher dimensional models of light Majorana neutrinos confronted by data
• Impact of CP phases on neutrinoless double beta decay
• Critical View to "The IGEX neutrinoless double beta decay experiment...." published in Phys. Rev. D, Volume 65 (2002) 092007
• Physics with Cosmic Neutrinos, PeV to ZeV
• Ultrahigh Energy Cosmic Rays: New Physics or Old Physics?
• Protecting the primordial baryon asymmetry in the seesaw model compatible with WMAP and KamLAND
• The Mysteries of the Highest Energy Cosmic Rays