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Exact relativistic β decay endpoint spectrum

AuthorsMasood, S. S.; Nasri, S.; Schechter, J.; Tórtola, María Amparo ; Valle, José W. F. ; Weinheimer, C.
Keywords[PACS] Neutrino mass and mixing
[PACS] Decays of baryons
[PACS] β decay; double β decay; electron and muon capture
[PACS] Weak-interaction and lepton (including neutrino) aspects of β decay
Issue Date5-Oct-2007
PublisherAmerican Physical Society
CitationPhysical Review C 76(4): 045501 (2007)
AbstractThe exact relativistic form for the β decay endpoint spectrum is derived and presented in a simple factorized form. We show that our exact formula can be well approximated to yield the endpoint form used in the fit method of the KATRIN Collaboration. We also discuss the three-neutrino case and how information from neutrino oscillation experiments may be useful in analyzing future β decay endpoint experiments.
Description5 pages, 3 figures.-- PACS nrs.: 14.60.Pq; 13.30.-a; 23.40.-s; 23.40.Bw.-- ISI Article Identifier: 000250620900070.-- ArXiv pre-print available at: http://arxiv.org/abs/0706.0897
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevC.76.045501
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