Radiative tritium beta-decay and the neutrino mass
arXiv:hep-ph/0407077 · doi:10.1016/j.physletb.2004.08.006
Abstract
The shape of the electron energy spectrum in 3H beta-decay permits a direct assay of the absolute scale of the neutrino mass; a highly accurate theoretical description of the electron energy spectrum is necessary to the empirical task. We update Sirlin's calculation of the outer radiative correction to nuclear beta-decay to take into account the non-zero energy resolution of the electron detector. In previous 3H beta-decay studies the outer radiative corrections were neglected all together; only Coulomb corrections to the spectrum were included. This neglect artificially pushes m_nu^2 < 0 in a potentially significant way. We present a computation of the theoretical spectrum appropriate to the extraction of the neutrino mass in the sub-eV regime.
arXiv comment11 pages, 4 eps figures; discussion, figure added
References in corpus (11)
- Evidence for oscillation of atmospheric neutrinos
- Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
- First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
- Neutrino masses and the number of neutrino species from WMAP and 2dFGRS
- Precision Measurements and CKM Unitarity
- Radiative corrections in neutrino-deuterium disintegration
- On the Normalization of the Neutrino-Deuteron Cross Section
- QED Corrections to Neutrino Electron Scattering
- Radiative neutron beta-decay in effective field theory
- WMAPping out Neutrino Masses
- The current status of Vud
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- High precision analytical description of the allowed spectrum shape
- Assessment of molecular effects on neutrino mass measurements from tritium beta decay
- Exact relativistic tritium beta-decay endpoint spectrum in a hadron model
- Influence of the recoil-order and radiative correction on the beta decay correlation coefficients in mirror decays
- Measuring neutrino mass with radioactive ions in a storage ring
- A Derivation of the Fermi Function in Perturbative Quantum Field Theory