guest ::
| Home > Publications database > Search for long-lived axion-like particles in top production |
| Home > Publications database > Search for long-lived axion-like particles in top production |
| Conference Presentation | PUBDB-2024-01551 |
; ; ; ; ; ;
2024
Abstract: We investigate the discovery potential for long-lived axion-like particles produced in association with a top quark-antiquark pair at the (High-Luminosity) LHC. Compared to inclusive searches for a displaced vertex, top quark associated signals offer new trigger options and an extra handle to suppress background. The search strategy includes axion-like particle decays to a displaced di-muon vertex which further contributes to the suppression of prompt background. For axion-like particles with masses above the di-muon threshold, we find that the (High-Luminosity) LHC can probe effective top-quark couplings as small as |ctt|/fa = 0.03 (0.002) TeV and proper decay lengths as long as 20 (300) m, assuming a cross section of 1 fb, with data corresponding to an integrated luminosity of 150 fb−1 (3 ab−1). Our predictions suggest that searches for top quark associated displaced di-muons will explore new terrain in the current sensitivity gap between searches for prompt di-muons and missing energy.In this talk I will present the results of our phenomenology study, and the first results of the CMS analysis searching for this same signature.
|
The record appears in these collections: |
Conference Presentation
Search for singly-produced vector-like top quark decaying to top and Higgs inopposite sign di-lepton final state in proton-proton collision at $\sqrt{s}$ = 13TeV
DPG Spring Meeting (German Physical Society), DPG2024, KarlsruheKarlsruhe, Germany, 4 Mar 2024 - 8 Mar 2024
Files Fulltext
BibTeX |
EndNote:
XML,
Text |
RIS
PDF