Explanation of the 17 MeV Atomki anomaly in a U(1)′-extended two Higgs doublet model

被引：47

作者：

Delle Rose, Luigi ^{[1
,2
]}

Khalil, Shaaban ^{[3
]}

Moretti, Stefano ^{[1
,2
]}

机构：

[1] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[2] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England

[3] Zewail City Sci & Technol, Ctr Fundamental Phys, 6 October City, Giza 12588, Egypt

来源：

PHYSICAL REVIEW D | 2017年 / 96卷 / 11期

基金：

英国科学技术设施理事会; 欧盟地平线“2020”;

关键词：

DARK PHOTON; FLAVOR; SYMMETRY; FORCE; BOSON;

D O I：

10.1103/PhysRevD.96.115024

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Motivated by an anomaly observed in the decay of an excited state of Beryllium (Be-8) by the Atomki collaboration, we study an extension of the standard model with a gauged U(1)' symmetry in presence of a two 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.

引用

页数：6

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