12–16 Dec 2022
IISER Mohali
Asia/Kolkata timezone

Low-mass doubly-charged higgs bosons at LHC

13 Dec 2022, 15:30
15m
LH4 (IISER Mohali)

LH4

IISER Mohali

Lecture Hall Complex, IISER Mohali, Sector 81, Knowledge city, SAS Nagar, Punjab, India

Speaker

Rameswar Sahu

Description

Doubly-charged Higgs bosons within the mass range 84–200 GeV decaying into a pair of W-bosons have been overlooked by the LHC searches. Such Higgses, when produced in a highly Lorentz-boosted regime, tend to manifest themselves as a single doubly-charged fat jet. We perform a multivariate analysis with the jet substructure variables as inputs to the boosted decision tree classifier to discern such jets from the SM jets. Considering their Drell-Yan pair production, we present a novel search strategy for them in the final state with two same-sign leptons and a doubly-charged fat jet. We find that discovery with 5σ significance is achievable with the already collected Run 2 LHC data.

Session Beyond the Standard Model

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