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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
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Lepton Number Violation in Higgs Decay at LHC
Alessio Maiezza1, Miha Nemevšek2, Fabrizio Nesti3
1IFIC, Universitat de València-CSIC, Apartamento Correus 22085, E-46071 València, Spain.
Physical Review Letters
|September 5, 2015
Summary
Lepton number violating Higgs boson decays could be discovered at the Large Hadron Collider (LHC). This discovery offers a pathway to understanding heavy Majorana neutrino mass origins.
Area of Science:
- Particle Physics
- High-Energy Physics
- Cosmology
Background:
- The Standard Model of particle physics does not account for neutrino mass.
- Left-right symmetric models offer a framework for understanding neutrino mass and offer potential new physics beyond the Standard Model.
- Lepton number violation is a key signature for physics beyond the Standard Model.
Purpose of the Study:
- To investigate the potential for discovering lepton number violating Higgs boson decays at the Large Hadron Collider (LHC).
- To explore the connection between Higgs boson physics and the origin of heavy Majorana neutrino mass.
- To assess the LHC's sensitivity to new physics scales related to parity restoration.
Main Methods:
- Theoretical analysis within the framework of a left-right symmetric model.
- Detailed collider study focusing on the same-sign dileptons plus jets channel at the LHC.
- Comparison of proposed searches with existing experimental searches for lepton number violation.
Main Results:
- Lepton number violating Higgs boson decays are predicted to be discoverable at the LHC.
- The Higgs boson can act as a probe for the origin of heavy Majorana neutrino mass.
- The same-sign dileptons plus jets channel provides a sensitive probe for lepton number violation.
Conclusions:
- The LHC has the potential to discover new physics through Higgs boson decays.
- These decays offer a unique window into the mechanism of neutrino mass generation.
- The study highlights the complementarity of collider searches with other experimental probes of lepton number violation and parity restoration.
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