Heavy neutral fermions at the high-luminosity LHC

A bstract Long-lived light particles (LLLPs) appear in many extensions of the standard model. LLLPs are usually motivated by the observed small neutrino masses, by dark matter or both. Typical examples for fermionic LLLPs (a.k.a. heavy neutral fermions, HNFs) are sterile neutrinos or the lightest ne...

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Bibliographic Details
Published in:The journal of high energy physics 2018-07, Vol.2018 (7), p.1-23, Article 56
Main Authors: Helo, Juan Carlos, Hirsch, Martin, Wang, Zeren Simon
Format: Article
Language:English
Subjects:
Beyond Standard Model
Classical and Quantum Gravitation
Dark matter
Elementary Particles
Fermions
High energy physics
Large Hadron Collider
Luminosity
Neutrino Physics
Neutrinos
Parameter sensitivity
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Standard model (particle physics)
String Theory
Supersymmetric Standard Model
Supersymmetry
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Summary:A bstract Long-lived light particles (LLLPs) appear in many extensions of the standard model. LLLPs are usually motivated by the observed small neutrino masses, by dark matter or both. Typical examples for fermionic LLLPs (a.k.a. heavy neutral fermions, HNFs) are sterile neutrinos or the lightest neutralino in R-parity violating supersymmetry. The high luminosity LHC is expected to deliver up to 3/ab of data. Searches for LLLPs in dedicated experiments at the LHC could then probe the parameter space of LLLP models with unprecedented sensitivity. Here, we compare the prospects of several recent experimental proposals, FASER, CODEX-b and MATHUSLA, to search for HNFs and discuss their relative merits.s
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP07(2018)056