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https://hdl.handle.net/2440/140905
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Type: | Journal article |
Title: | Search for leptoquarks decaying into the bτ final state in pp collisions at √s = 13 TeV with the ATLAS detector |
Other Titles: | Search for leptoquarks decaying into the b tau final state in pp collisions at root s = 13 TeV with the ATLAS detector |
Author: | Aad, G. Abbott, B. Abeling, K. Abicht, N.J. Abidi, S.H. Aboulhorma, A. Abramowicz, H. Abreu, H. Abulaiti, Y. Abusleme Hoffman, A.C. Acharya, B.S. Adam Bourdarios, C. Adamczyk, L. Adamek, L. Addepalli, S.V. Addison, M.J. Adelman, J. Adiguzel, A. Adye, T. Affolder, A.A. et al. |
Citation: | The Journal of High Energy Physics, 2023; 2023(1):1-1-1-55 |
Publisher: | Springer Science and Business Media LLC |
Issue Date: | 2023 |
ISSN: | 1029-8479 1029-8479 |
Abstract: | A search for leptoquarks decaying into the bτ final state is performed using Run 2 proton-proton collision data from the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb−1 at √ s = 13TeV recorded by the ATLAS detector. The benchmark models considered in this search are vector leptoquarks with electric charge of 2/3e and scalar leptoquarks with an electric charge of 4/3e. No significant excess above the Standard Model prediction is observed, and 95% confidence level upper limits are set on the cross-section times branching fraction of leptoquarks decaying into bτ . For the vector leptoquark production two models are considered: the Yang-Mills and Minimal coupling models. In the Yang-Mills (Minimal coupling) scenario, vector leptoquarks with a mass below 1.58 (1.35)TeV are excluded for a gauge coupling of 1.0 and below 2.05 (1.99)TeV for a gauge coupling of 2.5. In the case of scalar leptoquarks, masses below 1.28 (1.53)TeV are excluded for a Yukawa coupling of 1.0 (2.5). Finally, an interpretation of the results with minimal model dependence is performed for each of the signal region categories, and limits on the visible cross-section for beyond the Standard Model processes are provided. |
Keywords: | Beyond Standard Model; Hadron-Hadron Scattering |
Rights: | Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. |
DOI: | 10.1007/jhep10(2023)001 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1007/jhep10(2023)001 |
Appears in Collections: | Research Outputs |
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