Constraints on the $X17$ boson from IceCube searches for non-standard interactions of neutrinos
Constraints on the $X17$ boson from IceCube searches for non-standard interactions of neutrinos
We explain the ATOMKI anomaly with a very light $Z'$ state that features non-anomalous and non-flavour-universal vector and axial-vector couplings to all leptons. This $Z'$ comes from a theoretical framework with a spontaneously broken $U(1)'$ symmetry in addition to the Standard Model (SM) gauge group and is compliant with current measurements of the anomalous magnetic moments of the electron and the muon as well as beam dump experiments. The lepton flavour structure of this model allows for $Z'$ couplings to all light neutrinos, suggesting the possibility of $Z'$-mediated Non-Standard Interactions (NSIs) of neutrinos in matter, so that measurements of the strength parameters of the NSIs can constrain the value of the couplings. We use experimental constraints on NSIs of neutrinos using older TEXONO data and newer IceCube data. The IceCube data, in particular, strongly constrain the flavour universality of the leptonic vector current. The constraints enable us to define the region of parameter space of this theoretical scenario that can be pursued in further phenomenological analyses.
hep-ph
Enberg, Rikard
ec453f82-1f21-4dd7-9ad6-ff39b1a0c895
Hiçyılmaz, Yaşar
414f71c1-1f3f-4f2c-b579-d32277cb112c
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Heros, Carlos Pérez de los
c41bcdd4-c027-46f8-a641-741b45db76d2
Waltari, Harri
40b64912-03e3-4ed9-b3cd-b1951ab9b883
Enberg, Rikard
ec453f82-1f21-4dd7-9ad6-ff39b1a0c895
Hiçyılmaz, Yaşar
414f71c1-1f3f-4f2c-b579-d32277cb112c
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Heros, Carlos Pérez de los
c41bcdd4-c027-46f8-a641-741b45db76d2
Waltari, Harri
40b64912-03e3-4ed9-b3cd-b1951ab9b883
[Unknown type: UNSPECIFIED]
Abstract
We explain the ATOMKI anomaly with a very light $Z'$ state that features non-anomalous and non-flavour-universal vector and axial-vector couplings to all leptons. This $Z'$ comes from a theoretical framework with a spontaneously broken $U(1)'$ symmetry in addition to the Standard Model (SM) gauge group and is compliant with current measurements of the anomalous magnetic moments of the electron and the muon as well as beam dump experiments. The lepton flavour structure of this model allows for $Z'$ couplings to all light neutrinos, suggesting the possibility of $Z'$-mediated Non-Standard Interactions (NSIs) of neutrinos in matter, so that measurements of the strength parameters of the NSIs can constrain the value of the couplings. We use experimental constraints on NSIs of neutrinos using older TEXONO data and newer IceCube data. The IceCube data, in particular, strongly constrain the flavour universality of the leptonic vector current. The constraints enable us to define the region of parameter space of this theoretical scenario that can be pursued in further phenomenological analyses.
Text
2404.04717v1
- Author's Original
Available under License Other.
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Accepted/In Press date: 6 April 2024
Keywords:
hep-ph
Identifiers
Local EPrints ID: 491550
URI: http://eprints.soton.ac.uk/id/eprint/491550
PURE UUID: 1440ab0f-f2f1-4601-9709-b4b31380e08b
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Date deposited: 25 Jun 2024 17:26
Last modified: 26 Jun 2024 01:38
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Contributors
Author:
Rikard Enberg
Author:
Yaşar Hiçyılmaz
Author:
Carlos Pérez de los Heros
Author:
Harri Waltari
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