The leptoquark hunter’s guide: pair production
Abstract
Leptoquarks occur in many new physics scenarios and could be the next big discovery at the LHC. The purpose of this paper is to point out that a model-independent search strategy covering all possible leptoquarks is possible and has not yet been fully exploited. To be systematic we organize the possible leptoquark final states according to a leptoquark matrix with entries corresponding to nine experimentally distinguishable leptoquark decays: any of {light-jet, b-jet, top} with any of {neutrino, e/μ, τ}. The 9 possibilities can be explored in a largely model-independent fashion with pair-production of leptoquarks at the LHC. We review the status of experimental searches for the 9 components of the leptoquark matrix, pointing out which 3 have not been adequately covered. We plead that experimenters publish bounds on leptoquark cross sections as functions of mass for as wide a range of leptoquark masses as possible. Such bounds are essential for reliable recasts to general leptoquark models. To demonstrate the utility of the leptoquark matrix approach we collect and summarize searches with the same final states as leptoquark pair production and use them to derive bounds on a complete set of Minimal Leptoquark models which span all possible flavor and gaugemore »
- Authors:
-
- Universidad Tecnica Federico Santa Maria, Valparaiso (Chile)
- Boston Univ., Boston, MA (United States)
- Publication Date:
- Research Org.:
- Boston Univ., MA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1512427
- Alternate Identifier(s):
- OSTI ID: 1833196
- Grant/Contract Number:
- SC0015845
- 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: 10; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Nature
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Hadron-Hadron scattering (experiments)
Citation Formats
Diaz, Bastian, Schmaltz, Martin, and Zhong, Yi-Ming. The leptoquark hunter’s guide: pair production. United States: N. p., 2017.
Web. doi:10.1007/jhep10(2017)097.
Diaz, Bastian, Schmaltz, Martin, & Zhong, Yi-Ming. The leptoquark hunter’s guide: pair production. United States. https://doi.org/10.1007/jhep10(2017)097
Diaz, Bastian, Schmaltz, Martin, and Zhong, Yi-Ming. Fri .
"The leptoquark hunter’s guide: pair production". United States. https://doi.org/10.1007/jhep10(2017)097. https://www.osti.gov/servlets/purl/1512427.
@article{osti_1512427,
title = {The leptoquark hunter’s guide: pair production},
author = {Diaz, Bastian and Schmaltz, Martin and Zhong, Yi-Ming},
abstractNote = {Leptoquarks occur in many new physics scenarios and could be the next big discovery at the LHC. The purpose of this paper is to point out that a model-independent search strategy covering all possible leptoquarks is possible and has not yet been fully exploited. To be systematic we organize the possible leptoquark final states according to a leptoquark matrix with entries corresponding to nine experimentally distinguishable leptoquark decays: any of {light-jet, b-jet, top} with any of {neutrino, e/μ, τ}. The 9 possibilities can be explored in a largely model-independent fashion with pair-production of leptoquarks at the LHC. We review the status of experimental searches for the 9 components of the leptoquark matrix, pointing out which 3 have not been adequately covered. We plead that experimenters publish bounds on leptoquark cross sections as functions of mass for as wide a range of leptoquark masses as possible. Such bounds are essential for reliable recasts to general leptoquark models. To demonstrate the utility of the leptoquark matrix approach we collect and summarize searches with the same final states as leptoquark pair production and use them to derive bounds on a complete set of Minimal Leptoquark models which span all possible flavor and gauge representations for scalar and vector leptoquarks.},
doi = {10.1007/jhep10(2017)097},
journal = {Journal of High Energy Physics (Online)},
number = 10,
volume = 2017,
place = {United States},
year = {Fri Oct 13 00:00:00 EDT 2017},
month = {Fri Oct 13 00:00:00 EDT 2017}
}
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Figure 1: (Left) LQ coupling to quark $q$ and lepton $l$ (see appendix A for notations used in the paper). (Right) LQ matrix. Each entry of the matrix represents one of the experimentally distinguishable leptoquark decays. Rows label leptonic decay products, columns label hadronic decay products. A more precise definitionmore »
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