Antimatter in the universe and laboratory

Dolgov, A. D.

doi:10.1051/epjconf/20159503007

Cited by 4 publications

(2 citation statements)

References 41 publications

(42 reference statements)

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“…The generation of the baryon asymmetry of the Universe is one of the open cosmological issues. Both cosmic ray data and gamma ray data indicate that there are no significant quantities of antimatter in the local vicinity up to galaxy cluster scales of 10-20 Mpc [6][7][8][9][10]. It is most probable that our universe is made of matter.…”

Section: Baryon Asymmetry Of the Universementioning

confidence: 99%

Favored Inflationary Models by Scalar Field Condensate Baryogenesis

Kirilova

Panayotova

2021

Galaxies

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We calculate the baryon asymmetry value generated in the Scalar Field Condensate (SCF) baryogenesis model obtained in several inflationary scenarios and different reheating models. We provide analysis of the baryon asymmetry value obtained for more than 70 sets of parameters of the SCF model and the following inflationary scenarios, namely: new inflation, chaotic inflation, Starobinsky inflation, MSSM inflation, quintessential inflation. We considered both cases of efficient thermalization after inflation and delayed thermalization. We have found that the SFC baryogenesis model produces baryon asymmetry orders of magnitude bigger than the observed one for the following inflationary models: new inflation, new inflation model by Shafi and Vilenkin, MSSM inflation, chaotic inflation with high reheating temperature and the simplest Shafi–Vilenkin chaotic inflationary model. Strong diluting mechanisms are needed for these models to reduce the resultant baryon excess at low energies to its observational value today. We have found that a successful generation of the observed baryon asymmetry is possible by the SCF baryogenesis model in Modified Starobinsky inflation, chaotic inflation with low reheating temperature, chaotic inflation in SUGRA, and Quintessential inflation.

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Section: Baryon Asymmetry Of the Universementioning

confidence: 99%

Favored Inflationary Models by Scalar Field Condensate Baryogenesis

Kirilova

Panayotova

2021

Galaxies

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“…Cosmic and gamma-ray data indicate that there is no significant antimatter quantity up to galaxy cluster scales of 10-20 Mpc Steigman (1976), Steigman (2008), Stecker (1985), Ballmoos (2014), Dolgov (2015) †. Hence, a generation of the observed baryon asymmetry from initially matter-antimatter symmetric state of the very early Universe must have happened in the period after inflation, but before Big Bang Nucleosynthesis (BBN) epoch.…”

Section: Introductionmentioning

confidence: 99%

Favoured Inflationary Models by SFC Baryogenesis

Panayotova

Kirilova

2020

Proc. IAU

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We provide analysis of the baryon asymmetry generated in the Scalar Field Condensate (SFC) baryogenesis model obtained in new inflation, chaotic inflation, Starobinsky inflation, MSSM inflation, quintessential inflation, considering both cases of efficient thermalization after inflation and also delayed thermalization. We have found that baryon asymmetry generated in SFC baryogenesis model is considerably bigger than the observed one for the new inflation, new inflation model by Shafi and Vilenkin, MSSM inflation, chaotic inflation with high reheating temperature and the simplest Shafi-Vilenkin chaotic inflationary model. Therefore, strong diluting mechanisms are needed to reduce the baryon excess to its observational value today for these models. We have shown that for the SFC baryogenesis model a successful generation of the observed baryon asymmetry is possible in Modified Starobinsky inflation, chaotic inflation with low reheating temperature, chaotic inflation in SUGRA and quintessential inflationary model.

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