Characterizing the hypercharge anapole dark matter particle

Nov 15, 2023, 11:50 AM
The Suites Hotel, Jeju Island, Korea

The Suites Hotel, Jeju Island, Korea

67 Jungmungwangwang-ro 72beon-gil, 특별자치도, Seogwipo-si, Jeju-do


Jaehoon Jeong (KIAS)


We consider the case that dark matter (DM) is solely composed of se lf-conjugate (Majorana) particle interacting with ordinary standard model (SM) matter exclusively through so-called U(1) hypercharge anapole terms. Based on the general three-point vertices of a virtual photon $\gamma$ and a massive gauge boson $Z$ and two identical on-shell particles of any spin $J$ and mass $m$, we evaluate the relic abundance and the direct detection cross sections. Combining the constraints from these experiments and those from the high-energy Large Hadron Collider (LHC) experiments, we perform a systematic investigation of whether the limits on the mass and coupling strengthes depend on the spin of the anapole DM.

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