Light Z′ signatures at the LHC
Light Z′ signatures at the LHC
We propose a theoretical framework embedding a spontaneously broken $U(1)'$ symmetry in addition to the Standard Model (SM) gauge group, from which a very light $Z'$ state emerges, with both vector and axial (non-universal) couplings to fermions, able to explain the so-called Atomki anomaly, compliant with current measurements of the Anomalous Magnetic Moments (AMMs) of electron and muon as well as beam dump experiments while providing a distinctive $pp\to {\rm Higgs}\to Z'Z'\to 4l$ ($l=e,\mu$) signal at the Large Hadron Collider (LHC), where the `Higgs' label refers to the SM-like Higgs state discovered in 2012 or a lighter one. We finally show that the cross section for this process should be sufficiently large to afford one with significant sensitivity during Run 3 of the LHC.
hep-ph
Hiçyılmaz, Yaşar
414f71c1-1f3f-4f2c-b579-d32277cb112c
Khalil, Shaaban
67033bc6-f867-40bc-beaf-6323e312edcc
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
19 September 2022
Hiçyılmaz, Yaşar
414f71c1-1f3f-4f2c-b579-d32277cb112c
Khalil, Shaaban
67033bc6-f867-40bc-beaf-6323e312edcc
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
[Unknown type: UNSPECIFIED]
Abstract
We propose a theoretical framework embedding a spontaneously broken $U(1)'$ symmetry in addition to the Standard Model (SM) gauge group, from which a very light $Z'$ state emerges, with both vector and axial (non-universal) couplings to fermions, able to explain the so-called Atomki anomaly, compliant with current measurements of the Anomalous Magnetic Moments (AMMs) of electron and muon as well as beam dump experiments while providing a distinctive $pp\to {\rm Higgs}\to Z'Z'\to 4l$ ($l=e,\mu$) signal at the Large Hadron Collider (LHC), where the `Higgs' label refers to the SM-like Higgs state discovered in 2012 or a lighter one. We finally show that the cross section for this process should be sufficiently large to afford one with significant sensitivity during Run 3 of the LHC.
Text
2209.09226v1
- Author's Original
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Published date: 19 September 2022
Keywords:
hep-ph
Identifiers
Local EPrints ID: 472314
URI: http://eprints.soton.ac.uk/id/eprint/472314
PURE UUID: 2dd35f72-c89c-4296-8427-6758f3013aba
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Date deposited: 01 Dec 2022 17:34
Last modified: 17 Mar 2024 02:58
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Author:
Yaşar Hiçyılmaz
Author:
Shaaban Khalil
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