Selected Papers from XXVII Workshop “What Comes Beyond the Standard Models?”: New Trends in Particle Cosmology

A special issue of Particles (ISSN 2571-712X).

Deadline for manuscript submissions: 31 December 2024 | Viewed by 1002

Special Issue Editor


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Guest Editor
1. President and Full Professor, Center for Cosmoparticle Physics "Cosmion", National Research Nuclear University "Moscow Engineering Physics Institute", Moscow, Russia
2. Virtual Institute of Astroparticle Physics, 75018 Paris, France
3. Principal Researcher, Institute of Physics, Southern Federal University, Rostov on Don, Russia
Interests: cosmology; particle physics; beyond standard models; cosmoparticle physics; dark matter; primordial black holes; antimatter
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Special Issue Information

Dear colleagues,

This Special Issue will host selected papers from the XXVII International Workshop “What Comes Beyond the Standard Models?”, which will be held in Bled, Slovenia, from 8th July 2024 to 17th July 2024 (http://bsm.fmf.uni-lj.si/bled2024bsm/index.html). Its aim is to present the trends in the exploration of particle cosmology in its studies of particle physics and cosmology beyond the standard models. The article processing charge (APC) for submissions from the workshop will be waived, and publication will be free of charge.

Prof. Dr. Maxim Y. Khlopov
Guest Editor

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Keywords

  • cosmology
  • particle physics
  • cosmoparticle physics
  • dark matter
  • inflation
  • baryosynthesis
  • extra dimensions
  • physics beyond the standard model

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Published Papers (1 paper)

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Research

13 pages, 320 KiB  
Article
Structure of the Baryon Halo Around a Supermassive Primordial Black Hole
by Boris Murygin, Viktor Stasenko and Yury Eroshenko
Particles 2024, 7(4), 1004-1016; https://doi.org/10.3390/particles7040061 - 13 Nov 2024
Viewed by 572
Abstract
According to some theoretical models, primordial black holes with masses of more than 108 solar masses could be born in the early universe, and their possible observational manifestations have been investigated in a number of works. Dense dark matter and baryon halos [...] Read more.
According to some theoretical models, primordial black holes with masses of more than 108 solar masses could be born in the early universe, and their possible observational manifestations have been investigated in a number of works. Dense dark matter and baryon halos could form around such primordial black holes even at the pre-galactic stage (in the cosmological Dark Ages epoch). In this paper, the distribution and physical state of the gas in the halo are calculated, taking into account the radiation transfer from the central accreting primordial black hole. This made it possible to find the ionization radius, outside of which there are regions of neutral hydrogen absorption in the 21 cm line. The detection of annular absorption regions at high redshifts in combination with a central bright source may provide evidence of the existence of supermassive primordial black holes. We also point out the fundamental possibility of observing absorption rings with strong gravitational lensing on galaxy clusters, which weakens the requirements for the angular resolution of radio telescopes. Full article
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