Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Caballero O. L."'
Publikováno v:
Phys. Rev. C 110, 035804 (2024)
$\alpha$ decay is one of the prominent decay modes in the nucleosynthesis of heavy and super-heavy elements synthesized at temperatures of the order of Giga Kelvin. To facilitate the investigation of the role played by the $\alpha$ decay half-lives o
Externí odkaz:
http://arxiv.org/abs/2409.06761
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 51 (2014) 095201
At the low temperature and high density conditions of a neutron star crust neutrons are degenerate. In this work, we study the effect of this degeneracy on the capture rates of neutrons on neutron rich nuclei in accreted crusts. We use a statistical
Externí odkaz:
http://arxiv.org/abs/2408.11639
Autor:
Anderson Dornan Rajan, Caballero O. L.
Publikováno v:
EPJ Web of Conferences, Vol 279, p 10001 (2023)
Neutrinos act as an important cooling mechanism in an array of explosive astrophysical events. Modeling of their fluxes and spectra is key for the interpretation of their detection and the understanding of the synthesis of heavy elements. The neutrin
Externí odkaz:
https://doaj.org/article/fae6f29ee0df458e8ebd28692e7f1f02
Publikováno v:
Nucl. Phys. A 1028, 122524 (2022)
A universal decay law (UDL) for light cluster decay of excited nuclei is formulated by fitting the UDL half-lives to those evaluated within an excitation energy-dependent double folding model (DFM). The half-lives are evaluated within a preformed clu
Externí odkaz:
http://arxiv.org/abs/2212.09221
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 50 015203, 2023
One of the prominent decay modes of heavy nuclei which are produced in astrophysical environments at temperatures of the order of $10^9$ K is the $\alpha$ ($^4$He) decay. Thermally enhanced $\alpha$ decay rates are evaluated within the standard schem
Externí odkaz:
http://arxiv.org/abs/2212.03983
Publikováno v:
EPJ Web of Conferences, Vol 93, p 03002 (2015)
The synthesis of heavy elements in the Universe presents several challenges. From one side the astrophysical site is still undetermined and on other hand the input from nuclear physics requires the knowledge of properties of exotic nuclei, some of th
Externí odkaz:
https://doaj.org/article/9252d0eb322c415a97c0d7ddcac35bd0
Publikováno v:
Phys. Rev. D 100, 043008 (2019)
We study the cosmic MeV neutrino background from accretion disks formed during collapsars and the coalescence of compact-object mergers. We provide updated estimates, including detection rates, of relic neutrinos from collapsars, as well as estimates
Externí odkaz:
http://arxiv.org/abs/1808.03627
Publikováno v:
Phys. Rev. C 95, 025801 (2017)
We generalize our virial approach to study the neutral current neutrino response of nuclear matter at low densities. In the long-wavelength limit, the virial expansion makes model-independent predictions for neutrino-nucleon scattering rates and the
Externí odkaz:
http://arxiv.org/abs/1611.05140
Autor:
Caballero, O. L.
Neutron-star mergers are interesting for several reasons: they are proposed as the progenitors of short gamma-ray bursts, they have been speculated to be a site for the synthesis of heavy elements, and they emit gravitational waves possibly detectabl
Externí odkaz:
http://arxiv.org/abs/1603.02755
Autor:
Lehner, Luis, Liebling, Steven L., Palenzuela, Carlos, Caballero, O. L., O'Connor, Evan, Anderson, Matthew, Neilsen, David
We study the merger of binary neutron stars with different mass ratios adopting three different realistic, microphysical nuclear equations of state, as well as incorporating neutrino cooling effects. In particular, we concentrate on the influence of
Externí odkaz:
http://arxiv.org/abs/1603.00501