Dark magnetic dipole property in fermionic absorption by nucleus and electrons
Dark magnetic dipole property in fermionic absorption by nucleus and electrons
复制标题
核和电子费米子吸收中的暗磁偶极子特性
DOI：
10.1007/jhep05(2022)071
复制
发表时间：
2022-01
影响因子：
5.4
通讯作者：
Rui-Jia Zhang
中科院分区：
文献类型：
--
作者：
Tong Li;Jiajun Liao;Rui-Jia Zhang
The fermionic dark matter (DM) absorption by nucleus or electron targets provides a distinctive signal to search for sub-GeV DM. We consider a Dirac fermion DM charged under a dark gauge group and with the dark magnetic dipole operator. The DM field mixes with right-handed neutrino and interacts with the ordinary electromagnetic charge current via the kinetic mixing term of gauge fields. As a result, the incoming DM is absorbed and converted into neutrino in final state through the dipole-charge interaction. For the DM absorption by nucleus, the recoil energy spectrum exhibit a peak at\({m} _ {\upchi}^ 2/2 {m} _N\) for each isotope in the target. XENON1T can probe the DM mass above 27 MeV and the projected constraint on the inelastic DM-nucleon cross section becomes 10− 49 cm 2. CRESSTIII with lower energy threshold would be sensitive to the DM mass above 2 MeV. We also check that the contribution from the nuclear magnetic dipole is negligible for 131 Xe target. The absorption of DM by bound electron target induces ionization signal and is sensitive to sub-MeV DM mass. The involvement of the ionization form factor spreads out the localized recoil energy. We show the future prospect for the constraint on the magnetic dipole coupling from the electron ionization of 131 Xe.
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影响因子：
2.4
作者：
P. Ekins
通讯作者：
P. Ekins
影响因子：
1.9
作者：
F. Blattner
通讯作者：
F. Blattner
DOI：
10.1007/jhep12(2020)194
发表时间：
2020
期刊：
Journal of high energy physics : JHEP
影响因子：
--
作者：
Shakeri S;Hajkarim F;Xue SS
通讯作者：
Xue SS
影响因子：
1.6
作者：
Vicki D Crinis
通讯作者：
Vicki D Crinis
影响因子：
0.2
作者：
R. Eglash
通讯作者：
R. Eglash