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Explanation of the 17 MeV Atomki Anomaly in a U(1)'-extended 2-Higgs doublet model

Explanation of the 17 MeV Atomki Anomaly in a U(1)'-extended 2-Higgs doublet model
Explanation of the 17 MeV Atomki Anomaly in a U(1)'-extended 2-Higgs doublet model
Motivated by an anomaly observed in the decay of an excited state of Beryllium by the Atomki collaboration, we study an extension of the Standard Model with a gauged U(1)' symmetry in presence of a 2-Higgs Doublet Model structure of the Higgs sector. We show that this scenario complies with a variety of experimental results and is able to explain the potential presence of a resonant spin-1 gauge boson, Z', with a mass of 17 MeV in the Atomki experimental data, for appropriate choices of U(1)' charges and Yukawa interactions.
hep-ph
1550-7998
Rose, Luigi Delle
19c81ce1-e14b-4e4c-b72d-0d74cbb331db
Khalil, Shaaban
2320836f-4666-474a-9aa4-bdfe6eb086b7
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Rose, Luigi Delle
19c81ce1-e14b-4e4c-b72d-0d74cbb331db
Khalil, Shaaban
2320836f-4666-474a-9aa4-bdfe6eb086b7
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614

Rose, Luigi Delle, Khalil, Shaaban and Moretti, Stefano (2017) Explanation of the 17 MeV Atomki Anomaly in a U(1)'-extended 2-Higgs doublet model. Physical Review D, [arXiv:1704.03436]. (doi:10.1103/PhysRevD.96.115024).

Record type: Article

Abstract

Motivated by an anomaly observed in the decay of an excited state of Beryllium by the Atomki collaboration, we study an extension of the Standard Model with a gauged U(1)' symmetry in presence of a 2-Higgs Doublet Model structure of the Higgs sector. We show that this scenario complies with a variety of experimental results and is able to explain the potential presence of a resonant spin-1 gauge boson, Z', with a mass of 17 MeV in the Atomki experimental data, for appropriate choices of U(1)' charges and Yukawa interactions.

Other
Explanation of the 17 MeV Atomki Anomaly in a U(1)'1)′-Extended 2-Higgs Doublet Model - Author's Original
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Explanation of the 17 MeV Atomki Anomaly in a U(1)0-Extended 2-Higgs Doublet Model - Accepted Manuscript
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More information

Submitted date: 11 April 2017
Accepted/In Press date: 6 December 2017
e-pub ahead of print date: 26 December 2017
Additional Information: First available on ArXiv 11 April 2017 Copy of AM added. Author advised corrected accepted date of 6/12/17
Keywords: hep-ph

Identifiers

Local EPrints ID: 413733
URI: http://eprints.soton.ac.uk/id/eprint/413733
ISSN: 1550-7998
PURE UUID: 6fccde23-4362-4531-9eeb-958248939033

Catalogue record

Date deposited: 01 Sep 2017 16:31
Last modified: 06 Oct 2020 18:14

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