Inclusive nucleon decay searches as a frontier of baryon number violation
Abstract
Proton decay, and the decay of nucleons in general, constitutes one of the most sensitive probes of high-scale physics beyond the Standard Model. Most of the existing nucleon decay searches have focused primarily on two-body decay channels, motivated by grand unified theories and supersymmetry. However, many higher-dimensional operators violating baryon number by one unit, ΔB = 1, induce multibody nucleon decay channels, which have been only weakly constrained thus far. While direct searches for all such possible channels are desirable, they are highly impractical. In light of this, we argue that inclusive nucleon decay searches, N → X + anything (where X is a light Standard Model particle with an unknown energy distribution), are particularly valuable, as are model-independent and invisible nucleon decay searches such as n → invisible . We comment on complementarity and opportunities for such searches in the current as well as upcoming large-scale experiments Super-Kamiokande, Hyper-Kamiokande, JUNO, and DUNE. Similar arguments apply to ΔB > 1 processes, which kinematically allow for even more involved final states and are essentially unexplored experimentally.
- Publication Date:
- Research Org.:
- Univ. of California, Los Angeles, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Science Foundation (NSF); Alexander von Humboldt Foundation
- OSTI Identifier:
- 1581674
- Alternate Identifier(s):
- OSTI ID: 1801941
- Grant/Contract Number:
- deSC0009937; SC0009937; PHY-1620638; PHY-1915005; PHY-1607611
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 101 Journal Issue: 1; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Astronomy & Astrophysics; Physics
Citation Formats
Heeck, Julian, and Takhistov, Volodymyr. Inclusive nucleon decay searches as a frontier of baryon number violation. United States: N. p., 2020.
Web. doi:10.1103/PhysRevD.101.015005.
Heeck, Julian, & Takhistov, Volodymyr. Inclusive nucleon decay searches as a frontier of baryon number violation. United States. https://doi.org/10.1103/PhysRevD.101.015005
Heeck, Julian, and Takhistov, Volodymyr. Wed .
"Inclusive nucleon decay searches as a frontier of baryon number violation". United States. https://doi.org/10.1103/PhysRevD.101.015005.
@article{osti_1581674,
title = {Inclusive nucleon decay searches as a frontier of baryon number violation},
author = {Heeck, Julian and Takhistov, Volodymyr},
abstractNote = {Proton decay, and the decay of nucleons in general, constitutes one of the most sensitive probes of high-scale physics beyond the Standard Model. Most of the existing nucleon decay searches have focused primarily on two-body decay channels, motivated by grand unified theories and supersymmetry. However, many higher-dimensional operators violating baryon number by one unit, ΔB = 1, induce multibody nucleon decay channels, which have been only weakly constrained thus far. While direct searches for all such possible channels are desirable, they are highly impractical. In light of this, we argue that inclusive nucleon decay searches, N → X + anything (where X is a light Standard Model particle with an unknown energy distribution), are particularly valuable, as are model-independent and invisible nucleon decay searches such as n → invisible . We comment on complementarity and opportunities for such searches in the current as well as upcoming large-scale experiments Super-Kamiokande, Hyper-Kamiokande, JUNO, and DUNE. Similar arguments apply to ΔB > 1 processes, which kinematically allow for even more involved final states and are essentially unexplored experimentally.},
doi = {10.1103/PhysRevD.101.015005},
journal = {Physical Review D},
number = 1,
volume = 101,
place = {United States},
year = {2020},
month = {1}
}
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