Journal
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS
Volume 71, Issue -, Pages 93-118Publisher
ELSEVIER
DOI: 10.1016/j.ppnp.2013.03.005
Keywords
Beta decays; Symmetry tests; Physics beyond the Standard Model
Categories
Funding
- National Science Foundation [PHY-0855119]
- US Department of Energy [DE-FG02-96ER40989]
- US Department of Energy
- LDRD program at Los Alamos National Laboratory
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We consider the role of precision measurements of beta decays and light meson semi-leptonic decays in probing physics beyond the Standard Model in the LHC era. We describe all low-energy charged-current processes within and beyond the Standard Model using an effective field theory framework. We first discuss the theoretical hadronic input which in these precision tests plays a crucial role in setting the baseline for new physics searches. We then review the current and upcoming constraints on the various non-standard operators from the study of decay rates, spectra, and correlations in a broad array of light-quark systems. We finally discuss the interplay with LHC searches, both within models and in an effective theory approach. Our discussion illustrates the independent yet complementary nature of precision beta decay measurements as probes of new physics, showing them to be of continuing importance throughout the LHC era. (C) 2013 Elsevier B.V. All rights reserved.
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