A search for leptoquark signals is performed in final states with a hadronically decaying tau -lepton and missing transverse momentum, using data from proton-proton collisions at a centre-of-mass energy of root s = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider during Run 2 (2015-18), corresponding to an integrated luminosity of 140 fb-1. The analysis is designed to probe both resonant production and non-resonant t -channel exchange of the leptoquark, covering a wide range of coupling scenarios. No excess above the Standard Model background prediction is observed. Limits are set on the couplings in the benchmark U 1 vector-leptoquark model at 95% confidence level for masses between 1.5 TeV and 3.0 TeV.

Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N.j., et al. (2026). Search for a leptoquark in events with a hadronically decaying tau-lepton and missing transverse momentum using pp collisions at root s = 13 TeV with the ATLAS detector. PHYSICS LETTERS. SECTION B, 882 [10.1016/j.physletb.2026.141033].

Search for a leptoquark in events with a hadronically decaying tau-lepton and missing transverse momentum using pp collisions at root s = 13 TeV with the ATLAS detector

Aielli, G.;Camarri, P.;Cerrito, L.;De Sanctis, U.;Di Ciaccio, A.;
2026-01-01

Abstract

A search for leptoquark signals is performed in final states with a hadronically decaying tau -lepton and missing transverse momentum, using data from proton-proton collisions at a centre-of-mass energy of root s = 13 TeV recorded by the ATLAS detector at the Large Hadron Collider during Run 2 (2015-18), corresponding to an integrated luminosity of 140 fb-1. The analysis is designed to probe both resonant production and non-resonant t -channel exchange of the leptoquark, covering a wide range of coupling scenarios. No excess above the Standard Model background prediction is observed. Limits are set on the couplings in the benchmark U 1 vector-leptoquark model at 95% confidence level for masses between 1.5 TeV and 3.0 TeV.
2026
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
English
Con Impact Factor ISI
Leptoquarks
Resonant production
Tau leptons
Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N.j., et al. (2026). Search for a leptoquark in events with a hadronically decaying tau-lepton and missing transverse momentum using pp collisions at root s = 13 TeV with the ATLAS detector. PHYSICS LETTERS. SECTION B, 882 [10.1016/j.physletb.2026.141033].
Aad, G; Aakvaag, E; Abbott, B; Abdelhameed, S; Abeling, K; Abicht, Nj; Abidi, Sh; Aboelela, M; Aboulhorma, A; Abramowicz, H; Acharya, Bs; Ackermann, A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/475488
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