Physics Beyond Standard Model in Neutron Beta Decay
High Energy Physics - Phenomenology
2012-01-20 v1 Nuclear Experiment
Nuclear Theory
Abstract
Limits from neutron beta decay on parameters describing physics beyond the Standard Model are presented. New Physics is described by the most general Lorentz invariant effective Hamiltonian involving vector, scalar and tensor operators and Standard Model fields only. Two-parameter fits to the decay parameters measured in free neutron beta decay have been done, in some cases indicating rather big dependence of the results on g_A/g_V ratio of nucleon form factors at zero four-momentum transfer.
Keywords
Cite
@article{arxiv.1201.4101,
title = {Physics Beyond Standard Model in Neutron Beta Decay},
author = {Jacek Holeczek and Michal Ochman and Elzbieta Stephan and Marek Zralek},
journal= {arXiv preprint arXiv:1201.4101},
year = {2012}
}
Comments
6 pages, 6 figures, presented at the XXXV International Conference of Theoretical Physics "Matter to the Deepest 2011", Ustron, Poland, September 12-18, 2011