Physics of superheavy dark matter in supergravity; International Journal of Modern Physics D; Vol. 27, iss. 6
| Parent link: | International Journal of Modern Physics D: Scientific Journal Vol. 27, iss. 6.— 2018.— [12 p.] |
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| Korporativna značnica: | |
| Drugi avtorji: | , , , |
| Izvleček: | Title screen New trends in inflationary model building and dark matter production in supergravity are considered. Starobinsky inflation is embedded into N=1𝒩=1 supergravity, avoiding instability problems, when the inflaton belongs to a vector superfield associated with a U(1)U(1) gauge symmetry, instead of a chiral superfield. This gauge symmetry can be spontaneously broken by the super-Higgs mechanism resulting in a massive vector supermultiplet including the (real scalar) inflaton field. Both supersymmetry (SUSY) and the R-symmetry can also be spontaneously broken by the Polonyi mechanism at high scales close to the inflationary scale. In this case, Polonyi particles and gravitinos become superheavy, and can be copiously produced during inflation by the Schwinger mechanism sourced by the universe expansion. The Polonyi mass slightly exceeds twice the gravitino mass, so that Polonyi particles are unstable and decay into gravitinos. Considering the mechanisms of superheavy gravitino production, we find that the right amount of cold dark matter composed of gravitinos can be achieved. In our scenario, the parameter space of the inflaton potential is directly related to the dark matter one, providing a new unifying framework of inflation and dark matter genesis. A multi-superfield extension of the supergravity framework with a single (inflaton) superfield can result in a formation of primordial nonlinear structures like mini- and stellar-mass black holes, primordial nongaussianity, and the running spectral index of density fluctuations. This framework can be embedded into the SUSY GUTs inspired by heterotic string compactifications on Calabi-Yau three-folds, thus unifying particle physics with quantum gravity. Режим доступа: по договору с организацией-держателем ресурса |
| Jezik: | angleščina |
| Izdano: |
2018
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| Teme: | |
| Online dostop: | https://doi.org/10.1142/S0218271818410110 |
| Format: | Elektronski Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658254 |
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| 200 | 1 | |a Physics of superheavy dark matter in supergravity |f A. Addazi [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 330 | |a New trends in inflationary model building and dark matter production in supergravity are considered. Starobinsky inflation is embedded into N=1=1 supergravity, avoiding instability problems, when the inflaton belongs to a vector superfield associated with a U(1)U(1) gauge symmetry, instead of a chiral superfield. This gauge symmetry can be spontaneously broken by the super-Higgs mechanism resulting in a massive vector supermultiplet including the (real scalar) inflaton field. Both supersymmetry (SUSY) and the R-symmetry can also be spontaneously broken by the Polonyi mechanism at high scales close to the inflationary scale. In this case, Polonyi particles and gravitinos become superheavy, and can be copiously produced during inflation by the Schwinger mechanism sourced by the universe expansion. The Polonyi mass slightly exceeds twice the gravitino mass, so that Polonyi particles are unstable and decay into gravitinos. Considering the mechanisms of superheavy gravitino production, we find that the right amount of cold dark matter composed of gravitinos can be achieved. In our scenario, the parameter space of the inflaton potential is directly related to the dark matter one, providing a new unifying framework of inflation and dark matter genesis. A multi-superfield extension of the supergravity framework with a single (inflaton) superfield can result in a formation of primordial nonlinear structures like mini- and stellar-mass black holes, primordial nongaussianity, and the running spectral index of density fluctuations. This framework can be embedded into the SUSY GUTs inspired by heterotic string compactifications on Calabi-Yau three-folds, thus unifying particle physics with quantum gravity. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t International Journal of Modern Physics D |o Scientific Journal | ||
| 463 | |t Vol. 27, iss. 6 |v [12 p.] |d 2018 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a Темная Материя | |
| 610 | 1 | |a инфляция | |
| 610 | 1 | |a супергравитация | |
| 610 | 1 | |a нагрев | |
| 610 | 1 | |a Dark matter | |
| 610 | 1 | |a inflation | |
| 610 | 1 | |a supergravity | |
| 610 | 1 | |a reheating | |
| 701 | 1 | |a Addazi |b A. |g Andrea | |
| 701 | 1 | |a Marciano |b A. |g Antonino | |
| 701 | 1 | |a Ketov |b S. V. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1960- |g Sergey Vladimirovich |3 (RuTPU)RU\TPU\pers\36631 |9 19672 | |
| 701 | 1 | |a Khlopov |b M. Yu. |g Maksim Yurjevich | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа физики высокоэнергетических процессов |c (2017- ) |3 (RuTPU)RU\TPU\col\23551 |
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| 856 | 4 | |u https://doi.org/10.1142/S0218271818410110 | |
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