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BSM physics, on which the now standard inflationary cosmology with baryosynthesis and dark matter/energy is based, inevitably leads to cosmological scenarios beyond this standard model, involving specific model dependent choice of models…

General Physics · Physics 2024-11-28 Maxim Khlopov

The modern Standard cosmological model of inflationary Unvierse and baryosynthesis deeply involves particle theory beyond the Standard model (BSM). Inevitably, models of BSM physics lead to cosmological scenarios beyond the Standard…

Cosmology and Nongalactic Astrophysics · Physics 2018-12-11 Maxim Yu. Khlopov

Now Standard $\Lambda$CDM cosmology is based on physics Beyond the Standard Model (BSM), which in turn needs cosmological probes for its study. This vicious circle of problems can be resolved by methods of cosmoparticle physics, in which…

High Energy Physics - Phenomenology · Physics 2021-12-08 Maxim Yu. Khlopov

Explaining baryon asymmetry, dark matter and inflation are important elements of a successful theory that extends beyond the Standard Model of particle physics. In this paper we explore these issues within the Next-to-Minimal Supersymmetric…

High Energy Physics - Phenomenology · Physics 2017-04-25 Csaba Balazs , Anupam Mazumdar , Ernestas Pukartas , Graham White

Dark matter (DM) plays a crucial role in explaining the observed astrophysical anomalies, galaxy rotation curves, and other fundamental characteristics of the Universe. Many extensions of the Standard Model (SM), such as the dark…

High Energy Physics - Experiment · Physics 2025-10-16 Vindhyawasini Prasad

The multi-parameter character of supersymmetric dark-matter models implies the combination of their experimental studies with astrophysical and cosmological probes. The physics of the early Universe provides nontrivial effects of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-01 Maxim Khlopov

This report highlights the recent BESIII results related to the new physics searches motivated by the shortcomings of Standard Model, such as the exclusion of dark matter (DM). DM has so far been inferred only through astrophysical…

High Energy Physics - Experiment · Physics 2025-12-30 Vindhyawasini Prasad

In this work, we explain three beyond standard model (BSM) phenomena, namely neutrino masses, the baryon asymmetry of the Universe and Dark Matter, within a single model and in each explanation the right handed (RH) neutrinos play the prime…

High Energy Physics - Phenomenology · Physics 2019-06-26 Anirban Biswas , Sandhya Choubey , Laura Covi , Sarif Khan

The Standard Model is in good shape, apart possibly from g_\mu - 2 and some niggling doubts about the electroweak data. Something like a Higgs boson is required to provide particle masses, but theorists are actively considering…

High Energy Physics - Phenomenology · Physics 2023-03-30 John Ellis

The observational evidence for the inflationary cosmology with baryosynthesis and dark matter/energy can be viewed as the messenger for new physics, which governed the Universe origin, evolution and structure. To specify the physics beyond…

High Energy Physics - Phenomenology · Physics 2021-02-03 Maxim Yu. Khlopov

The modern cosmology is based on inflationary models with baryosynthesis and dark matter/energy.It implies extension of particle symmetry beyond the Standard model. Studies of physical basis of the modern cosmology combine direct searches…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-08 M. Yu. Khlopov

A rapid phase of accelerated expansion in the early universe, known as inflation, dilutes all matter except the vacuum induced quantum fluctuations. These are responsible for seeding the initial perturbations in the baryonic matter, the…

High Energy Physics - Phenomenology · Physics 2011-06-28 Anupam Mazumdar

We show that both the baryon asymmetry of the Universe and the dark matter abundance can be explained within a single framework that makes use of maximally helical hypermagnetic fields produced during pseudoscalar inflation and the chiral…

High Energy Physics - Phenomenology · Physics 2019-10-10 Yann Cado , Eray Sabancilar

The Standard Model (SM) of particle physics is a big success. However, it lacks explanations for cosmic inflation, the matter-anti-matter asymmetry of the Universe, dark matter, neutrino oscillations, and the feebleness of CP violation in…

High Energy Physics - Phenomenology · Physics 2019-09-04 Guillermo Ballesteros , Javier Redondo , Andreas Ringwald , Carlos Tamarit

If primordial black holes (PBHs) contribute more than 10 percent of the dark matter (DM) density, their energy density today is of the same order as that of the baryons. Such a cosmic coincidence might hint at a mutual origin for the…

Cosmology and Nongalactic Astrophysics · Physics 2022-01-28 Yi-Peng Wu , Elena Pinetti , Joseph Silk

We illustrate, via a simplified model, a scenario in which the baryon-asymmetry and, possibly the dark matter component of the Universe are simultaneously generated by the decay of a WIMP-like mother particle, in turn produced non-thermally…

High Energy Physics - Phenomenology · Physics 2026-04-15 Giorgio Arcadi , Sarif Khan , Agnese Mariotti

Cosmology requires new physics beyond the Standard Model of elementary particles and fields. What is the fundamental physics behind dark matter and dark energy? What generated the initial fluctuations in the early Universe? Polarised light…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-09 Eiichiro Komatsu

Various mechanisms have been suggested for the formation of Primordial Black Holes (PBHs), and this thesis focuses on the standard mechanism based on the critical collapse of cosmological fluctuations. The underlying idea is that during…

Cosmology and Nongalactic Astrophysics · Physics 2025-01-07 Antonio Junior Iovino

I review two different connections between particle theory and early-Universe cosmology: (1) Cosmic-microwave-background (CMB) tests of inflation and (2) particle dark matter. The inflationary predictions of a flat Universe and a nearly…

Astrophysics · Physics 2007-05-23 Marc Kamionkowski

The Standard Model of particle physics has been strengthened by the recent discovery of the long-awaited Higgs boson. The standard cosmological model has met the challenge of the high precision observations in cosmology and astroparticle…

High Energy Physics - Phenomenology · Physics 2013-12-03 Jonathan Da Silva
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