Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Vdovin, A. I."'
Publikováno v:
MNRAS 527, 7701-7712 (2024)
We propose a new method for calculating spectra and luminosities for (anti)neutrinos produced in the pre-supernova environment by weak processes with hot nuclei. It is based on the thermal quasiparticle random phase approximation (TQRPA), that allows
Externí odkaz:
http://arxiv.org/abs/2312.07988
Publikováno v:
Particles 2023, 6(3), 682-692
Applying TQRPA calculations of Gamow--Teller strength functions in hot nuclei, we compute the (anti)neutrino spectra and energy loss rates arising from weak processes on hot $^{56}$Fe under pre-supernova conditions. We use a realistic pre-supernova m
Externí odkaz:
http://arxiv.org/abs/2306.16055
Autor:
Antonova, I. V., Kotin, I. A., Kurkina, I. I., Ivanov, A. I., Yakimchuk, E. A., Nebogatikova, N. A., Vdovin, V. I., Gutakovskii, A. K., Soots, R. A.
Publikováno v:
J. Mater. Sci. Eng 6, 1000379 (2017)
Heterostructures prepared from graphene and fluorographene (FG) using the technology of 2D printing on solid and flexible substrates were fabricated and studied. Excellent stability of printed graphene layers and, to a lesser degree, composite graphe
Externí odkaz:
http://arxiv.org/abs/2205.07602
Publikováno v:
Phys. Rev. C 101, 025805 (2020)
We have calculated electron capture rates for neutron-rich $N=50$ nuclei ($^{78}$Ni, $^{82}$Ge, $^{86}$Kr, $^{88}$Sr) within the Thermal QRPA approach at temperatures $T=0$, corresponding to capture on the ground-state, and at $T=10$ GK (0.86 MeV), w
Externí odkaz:
http://arxiv.org/abs/1910.03335
Publikováno v:
Phys. Rev. C 100, 025801 (2019)
A microscopic thermodynamically consistent approach is applied to compute electron capture (EC) rates and cross sections on nuclei in hot stellar environments. The cross section calculations are based on the Donnelly-Walecka multipole expansion metho
Externí odkaz:
http://arxiv.org/abs/1903.08418
Akademický článek
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Autor:
Dzhioev, Alan A., Vdovin, A. I.
In this paper, we calculate cross sections for charged-current neutrino-nucleus processes occuring under presupernova conditions. To treat thermal effects we extend self-consistent Skyrme-QRPA calculations to finite temperature by using the formalism
Externí odkaz:
http://arxiv.org/abs/1612.03611
We combine the thermal QRPA approach with the Skyrme energy density functional theory (Skyrme-TQRPA) for modelling the process of electron capture on nuclei in supernova environment. For a sample nucleus, $^{56}$Fe, the Skyrme-TQRPA approach is appli
Externí odkaz:
http://arxiv.org/abs/1602.07875
Publikováno v:
Phys. Rev. C 94, 015805 (2016)
The Thermal Quasiparticle Random-Phase Approximation is combined with the Skyrme energy density functional method (Skyrme-TQRPA) to study the response of a hot nucleus to an external perturbation. For the sample nuclei, $^{56}$Fe and $^{82}$Ge, the S
Externí odkaz:
http://arxiv.org/abs/1602.07869
Publikováno v:
Phys. Rev. C 92, 045804 (2015)
Using the thermal quasiparticle random phase approximation, we study the process of neutrino and antineutrino capture on hot nuclei in supernova environments. For the sample nuclei $^{56}$Fe and $^{82}$Ge we perform a detailed analysis of thermal eff
Externí odkaz:
http://arxiv.org/abs/1507.06872