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Kamada, Ayuki
순수물리이론 연구단
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Strongly-interacting massive particle and dark photon in the era of the intensity frontier

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Title
Strongly-interacting massive particle and dark photon in the era of the intensity frontier
Author(s)
Ayuki Kamada; Masaki Yamada; Tsutomu T. Yanagida
Subject
DARK-MATTER SEARCHES
Publication Date
2020-10
Journal
PHYSICAL REVIEW D, v.102, no.7, pp.075001
Publisher
AMER PHYSICAL SOC
Abstract
© 2020 author(s). Published by the American Physical Society. A strongly interacting massive particle (SIMP) is an interesting candidate for dark matter (DM) because its self-interaction cross section can be naturally strong enough to address the astrophysical problem of small-scale structure formation. A simple model was proposed by assuming a monopole condensation, where composite SIMP comes from a "strongly interacting" U(1)(d) gauge theory. In the original model, the DM relic abundance is determined by the 3 -> 2 annihilation process via the Wess-Zumino-Witten term. In this paper, we discuss that the DM relic abundance is naturally determined also by a semiannihilation process via a kinetic mixing between the hypercharge gauge boson and the dark U(1)(d) gauge boson (dark photon). The dark photon can be discovered by LDMX-style missing momentum experiments in the near future
URI
https://pr.ibs.re.kr/handle/8788114/7590
DOI
10.1103/PhysRevD.102.075001
ISSN
2470-0010
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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