Greljo, Admir; Selimović, Nudžeim (2021). Lepton-quark fusion at Hadron colliders, precisely. Journal of High Energy Physics, 2021(3) Springer 10.1007/JHEP03(2021)279
|
Text
Greljo-Selimovic2021_Article_Lepton-quarkFusionAtHadronColl.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (857kB) | Preview |
When a TeV-scale leptoquark has a sizeable Yukawa coupling, its dominant production mechanism at hadron colliders is the partonic-level lepton-quark fusion. Even though the parton distribution functions for leptons inside the proton are minuscule, they get compensated by the resonant enhancement. We present the first computation of higher order radiative corrections to the resonant leptoquark production cross section at the Large Hadron Collider (LHC). Next-to-leading (NLO) QCD and QED corrections are similar in size but come with the opposite sign. We compute NLO K-factors for a wide range of scalar leptoquark masses, as well as, all possible combinations of quark and lepton flavors and leptoquark charges. Theoretical uncertainties due to the renormalisation and factorisation scale variations and the limited knowledge of parton distribution functions are quantified. We finally discuss how to disentangle the flavor structure of leptoquark interactions by exploiting the interplay between different production channels.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Greljo, Admir |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
07 Jun 2021 13:47 |
Last Modified: |
05 Dec 2022 15:51 |
Publisher DOI: |
10.1007/JHEP03(2021)279 |
ArXiv ID: |
2012.02092 |
BORIS DOI: |
10.48350/156238 |
URI: |
https://boris.unibe.ch/id/eprint/156238 |
Actions (login required)
 |
Edit item |