What measurements of neutrino neutral current events can reveal
Abstract
Here, we show that neutral current (NC) measurements at neutrino detectors can play a valuable role in the search for new physics. Such measurements have certain intrinsic features and advantages that can fruitfully be combined with the usual well-studied charged lepton detection channels in order to probe the presence of new interactions or new light states. In addition to the fact that NC events are immune to uncertainties in standard model neutrino mixing and mass parameters, they can have small matter effects and superior rates since all three flavours participate. We also show, as a general feature, that NC measurements provide access to different combinations of CP phases and mixing parameters compared to CC measurements at both long and short baseline experiments. Using the Deep Underground Neutrino Experiment (DUNE) as an illustrative setting, we demonstrate the capability of NC measurements to break degeneracies arising in CC measurements, allowing us, in principle, to distinguish between new physics that violates three flavour unitarity and that which does not. Finally, we show that NC measurements can enable us to restrict new physics parameters that are not easily constrained by CC measurements.
- Authors:
-
- Harish-Chandra Research Inst. (HBNI), Allahabad (India)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States). Theoretical Physics Dept.
- Univ. of Campinas (UNICAMP), Campinas (Brazil). Instituto de Fisica Gleb Wataghin
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1410793
- Report Number(s):
- arXiv:1708.01816; FERMILAB-PUB-17-276-T
Journal ID: ISSN 1029-8479; 1614646; TRN: US1800146
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 11; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; CP violation; Neutrino Physics
Citation Formats
Gandhi, Raj, Kayser, Boris, Prakash, Suprabh, and Roy, Samiran. What measurements of neutrino neutral current events can reveal. United States: N. p., 2017.
Web. doi:10.1007/JHEP11(2017)202.
Gandhi, Raj, Kayser, Boris, Prakash, Suprabh, & Roy, Samiran. What measurements of neutrino neutral current events can reveal. United States. https://doi.org/10.1007/JHEP11(2017)202
Gandhi, Raj, Kayser, Boris, Prakash, Suprabh, and Roy, Samiran. Wed .
"What measurements of neutrino neutral current events can reveal". United States. https://doi.org/10.1007/JHEP11(2017)202. https://www.osti.gov/servlets/purl/1410793.
@article{osti_1410793,
title = {What measurements of neutrino neutral current events can reveal},
author = {Gandhi, Raj and Kayser, Boris and Prakash, Suprabh and Roy, Samiran},
abstractNote = {Here, we show that neutral current (NC) measurements at neutrino detectors can play a valuable role in the search for new physics. Such measurements have certain intrinsic features and advantages that can fruitfully be combined with the usual well-studied charged lepton detection channels in order to probe the presence of new interactions or new light states. In addition to the fact that NC events are immune to uncertainties in standard model neutrino mixing and mass parameters, they can have small matter effects and superior rates since all three flavours participate. We also show, as a general feature, that NC measurements provide access to different combinations of CP phases and mixing parameters compared to CC measurements at both long and short baseline experiments. Using the Deep Underground Neutrino Experiment (DUNE) as an illustrative setting, we demonstrate the capability of NC measurements to break degeneracies arising in CC measurements, allowing us, in principle, to distinguish between new physics that violates three flavour unitarity and that which does not. Finally, we show that NC measurements can enable us to restrict new physics parameters that are not easily constrained by CC measurements.},
doi = {10.1007/JHEP11(2017)202},
journal = {Journal of High Energy Physics (Online)},
number = 11,
volume = 2017,
place = {United States},
year = {Wed Nov 29 00:00:00 EST 2017},
month = {Wed Nov 29 00:00:00 EST 2017}
}
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Works referencing / citing this record:
Exploring fake solutions in the sterile neutrino sector at long-baseline experiments
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