Vector-like tops from first generation quarks: the role of width and coupling chiralities in same-charge production at the LHC
Vector-like tops from first generation quarks: the role of width and coupling chiralities in same-charge production at the LHC
In this paper, we tension the scope of the q\bar q, gg\to T \bar T production process against that of the same-charge uu\to TT one in searching for Vector-Like Quarks (VLQs) with electromagnetic charge +2/3 at the Large Hadron Collider (LHC). The study is conducted by considering a simplified model in which such new states couple exclusively to Standard Model quarks of the first generation through W^\pm, Z and H currents. We consider both left-handed or right-handed dominant chiralities, representative of SU(2)_L singlets or doublets, and the total widths are allowed to reach large values relatively to the VLQ masses. By deconstructing the signal into all its components, we assess current and projected constraints, emphasize the role of interference terms and isolate peculiar features which can be used for dedicated searches at the LHC or future colliders.
hep-ph
Moretti, S.
b57cf0f0-4bc3-4e02-96e3-071255366614
Panizzi, L.
06448932-0614-4a31-a785-a8b988930774
Shang, L.
b48abb04-3629-4a0c-9549-367783e50a3b
Moretti, S.
b57cf0f0-4bc3-4e02-96e3-071255366614
Panizzi, L.
06448932-0614-4a31-a785-a8b988930774
Shang, L.
b48abb04-3629-4a0c-9549-367783e50a3b
[Unknown type: UNSPECIFIED]
Abstract
In this paper, we tension the scope of the q\bar q, gg\to T \bar T production process against that of the same-charge uu\to TT one in searching for Vector-Like Quarks (VLQs) with electromagnetic charge +2/3 at the Large Hadron Collider (LHC). The study is conducted by considering a simplified model in which such new states couple exclusively to Standard Model quarks of the first generation through W^\pm, Z and H currents. We consider both left-handed or right-handed dominant chiralities, representative of SU(2)_L singlets or doublets, and the total widths are allowed to reach large values relatively to the VLQ masses. By deconstructing the signal into all its components, we assess current and projected constraints, emphasize the role of interference terms and isolate peculiar features which can be used for dedicated searches at the LHC or future colliders.
Text
2504.05476v1
- Author's Original
Available under License Other.
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Accepted/In Press date: 7 April 2025
Additional Information:
22 pages, 10 figures, 3 tables
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hep-ph
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Local EPrints ID: 501147
URI: http://eprints.soton.ac.uk/id/eprint/501147
PURE UUID: 6ea7053b-ff6a-41ad-9df1-8937a48dcbbb
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Date deposited: 27 May 2025 16:50
Last modified: 28 May 2025 01:40
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Author:
L. Panizzi
Author:
L. Shang
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