Revisiting the LHC reach in the displaced region of the minimal left-right symmetric model

Abstract

We revisit discovery prospects for a long-lived sterile neutrino $N$ at the Large Hadron Collider (LHC) in the context of left-right symmetric theories. We focus on a displaced vertex search strategy sensitive to $\mathcal{O}$(GeV) neutrino masses produced via a right-handed $W_R$ boson. Both on-shell and off-shell Drell-Yan production of $W_R$ are considered. We estimate the reach as a function of $m_N$ and $m_{W_R}$. With $\sqrt{s}=13$ TeV and 300/fb of integrated luminosity, the LHC can probe neutrino masses as high as $\sim 30$ GeV and $m_{W_R}$ around 6 TeV. The reach goes up to 11.5 TeV with 3000/fb and $m_N\sim 45$ GeV. This represents an improvement of a factor of 2 in sensitivity with respect to earlier work.

6 pages, 1 figure. In v2: Numerical typo fixed, few clarifications on the simulation and references added. Version accepted for publication in PRD

References in corpus (4)

• An Introduction to PYTHIA 8.2
• First Limits on Left-Right Symmetry Scale from LHC Data
• Neutrino Jets from High-Mass $W_R$ Gauge Bosons in TeV-Scale Left-Right Symmetric Models
• Left-Right Symmetric Models at the High-Intensity Frontier

Cited by in corpus (6)

• The Present and Future Status of Heavy Neutral Leptons
• Search for Long-Lived Heavy Neutrinos at the LHC with a VBF Trigger
• Long-lived heavy neutral leptons at lepton colliders as a probe of left-right symmetric models
• Searching for light neutralinos with a displaced vertex at the LHC
• The Genuine Type-V Seesaw Model: Phenomenological Introduction
• Charged Lepton Flavor Violation at the High-Energy Colliders: Neutrino Mass Relevant Particles