Search for U(1)Lμ-Lτ charged dark matter with neutrino telescope

被引：0
|
作者：
Asai, Kento [1 ]
Okawa, Shohei [2 ]
Tsumura, Koji [3 ]
机构：
[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan
[2] Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada
[3] Kyushu Univ, Dept Phys, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 03期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Beyond Standard Model; Cosmology of Theories beyond the SM; Gauge Symmetry; MU-L-TAU; LIGHT; MODEL;
D O I：
10.1007/JHEP03(2021)047
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We study a simple Dirac fermion dark matter model in U(1)(L mu-L tau) theory. The new light gauge boson X plays important roles in both dark matter physics and the explanation for the muon g-2 anomaly. The observed dark matter relic density is realized by a large U(1)(L mu-L tau) charge without introducing a resonance effect of the X boson. As a by-product of the model, characteristic neutrino signatures from sub-GeV dark matter psi are predicted depending on the mass spectrum. We formulate the analysis of psi(psi) over bar -> nu(nu) over bar, and of psi(psi) over bar -> XX followed by X -> nu(nu) over bar in a model independent way. The energy spectrum of neutrinos in the former process is monochromatic while in the latter process is bowl-shape. We also evaluate sensitivity at Super-Kamiokande and future Hyper-Kamiokande detectors. The analysis is finally applied to the U(1)(L mu-L tau) dark matter model.
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页数：29
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