Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Juri Smirnov"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-36 (2023)
Abstract In this work, we present UV completions of the recently proposed number-changing Co-SIMP freeze-out mechanism. In contrast to the standard cannibalistic-type dark matter picture that occurs entirely in the dark sector, the 3 → 2 process se
Externí odkaz:
https://doaj.org/article/de7403d60fcb468696c2e0b7a06ffd60
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-32 (2022)
Abstract It has been shown that a first order confinement phase transition can drastically change the relic dark matter abundance in confining dark sectors with only heavy dark quarks. We study the phenomenology of one such model with a Z′ portal t
Externí odkaz:
https://doaj.org/article/d737bf2f094049d0b4e9f7d73f4e8611
Autor:
Juri Smirnov
Publikováno v:
SciPost Physics Proceedings, Iss 12, p 003 (2023)
Despite significant experimental sensitivity to point-like, weakly interacting particles at the electroweak mass scale, dark matter has not been found yet. This could hint at a more complex dark sector with multiple states or composite dark particles
Externí odkaz:
https://doaj.org/article/afd65aca478941e388a57f60f0b7f3be
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 10, Pp 1-40 (2017)
Abstract Dark Matter might be an accidentally stable baryon of a new confining gauge interaction. We extend previous studies exploring the possibility that the DM is made of dark quarks heavier than the dark confinement scale. The resulting phenomeno
Externí odkaz:
https://doaj.org/article/e0d94c137198428db9f21b2901828a80
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 9, Pp 1-19 (2017)
Abstract We investigate the possible collider signatures of a new Higgs in simple extensions of the Standard Model where baryon number is a local symmetry spontaneously broken at the low scale. We refer to this new Higgs as “Baryonic Higgs”. This
Externí odkaz:
https://doaj.org/article/90f88229f9814723ad3077756af717d3
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 7, Pp 1-39 (2017)
Abstract In this work we find the minimal extension of the Standard Model’s Higgs sector which can lead to a light Higgs boson via radiative symmetry breaking and is consistent with the phenomenological requirements for a low-energy realization of
Externí odkaz:
https://doaj.org/article/b6e6c65e854d4a0cb86b5a35a4d3c7c1
Publikováno v:
Physics Letters B, Vol 751, Iss C, Pp 119-122 (2015)
We point out the possibility to test the simplest scalar dark matter model at gamma-ray telescopes. We discuss the relevant constraints and show the predictions for direct detection, gamma line searches and LHC searches. Since the final state radiati
Externí odkaz:
https://doaj.org/article/95e8430d46954a46a6cd631feb0efcfd
Publikováno v:
INSPIRE-HEP
The minimum testable dark matter (DM) mass for almost all DM signatures in celestial bodies is determined by the rate at which DM evaporates. DM evaporation has previously been calculated assuming a competition between the gravitational potential of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33e7a67b1dffb854efc19fa36ad18298
http://arxiv.org/abs/2303.01516
http://arxiv.org/abs/2303.01516
Publikováno v:
Physical Review
We study general freeze-out scenarios where an arbitrary number of initial and final dark matter particles participate in the number-changing freeze-out interaction. We consider a simple sector with two particle species undergoing such a thermal free
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::393cf9ead837fdcc1989e3cf21d86fa0
https://doi.org/10.1103/physrevd.106.015012
https://doi.org/10.1103/physrevd.106.015012
Autor:
Tracy R. Slatyer, Eric David Kramer, Gregory W. Ridgway, Pouya Asadi, Eric Kuflik, Juri Smirnov
Publikováno v:
Physical Review Letters
We study the effect of a first-order phase transition in a confining $SU(N)$ dark sector with heavy dark quarks. The baryons of this sector are the dark matter candidate. During the confinement phase transition the heavy quarks are trapped inside iso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e355d21798ef91d7e01dd7832a0f2eae
https://doi.org/10.1103/physrevlett.127.211101
https://doi.org/10.1103/physrevlett.127.211101