Time-delayed electrons from Higgs decays to right-handed neutrinos

A bstract We consider the physics reach at the high luminosity LHC (HL-LHC) using the timing capability of a minimum ionizing particle (MIP) timing layer and the electromagnetic calorimeter in the CMS experiment for a simplified right-handed neutrino effective theory. In the simplified model, the li...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2019; no. 7; pp. 1 - 19
Main Author Mason, John D.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.07.2019
Springer Nature B.V
SpringerOpen
Subjects
Beyond Standard Model
Classical and Quantum Gravitation
Decay
Electrons
Elementary Particles
Higgs Physics
High energy physics
Luminosity
Neutrino Physics
Neutrinos
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Neutrino Physics
Beyond Standard Model
Higgs Physics
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Summary:A bstract We consider the physics reach at the high luminosity LHC (HL-LHC) using the timing capability of a minimum ionizing particle (MIP) timing layer and the electromagnetic calorimeter in the CMS experiment for a simplified right-handed neutrino effective theory. In the simplified model, the lightest right-handed neutrinos are produced through Higgs decay with mean decay lengths of order O (0.1 m − 100 m) and then subsequently decay into final states that include electrons. We consider the effect of several different kinematic cuts for a timing based analysis of this model. We demonstrate that if timing information can be successfully incorporated into the event trigger, it is possible to probe the Higgs branching ratio to two right-handed neutrinos to the order O (10 −5 ) for a range of different right-handed neutrino lifetimes.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP07(2019)089