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Neutron-rich matter at subnuclear densities may involve complex structures displaying a variety of shapes, such as spherical, slablike, and/or rodlike shapes. These phases of the {\it nuclear pasta} are expected to exist in the crust of…

Astrophysics · Physics 2009-11-10 C. J. Horowitz , M. A. Perez-Garcia , J. Piekarewicz

Principally important for the description the physical processes in the collapsing stellar cores topics are surveyed. They are: the neutrino heat conduction theory, equation of state under the conditions of nuclear statistical equilibrium…

Solar and Stellar Astrophysics · Physics 2013-08-22 D. K. Nadyozhin , A. V. Yudin

We explore the role of neutrinos in a Quark Nova explosion. We study production of neutrinos during this event, their propagation and their interactions with the surrounding quark matter and neutron-rich envelope. We address relevant…

Astrophysics · Physics 2009-10-02 Petteri Keranen , Rachid Ouyed , Prashanth Jaikumar

The prediction of neutron stars properties is strictly connected to the employed nuclear interactions. The appearance of hyperons in the inner core of the star is strongly dependent on the details of the underlying hypernuclear force. We…

Nuclear Theory · Physics 2018-07-20 Diego Lonardoni , Alessandro Lovato , Stefano Gandolfi , Francesco Pederiva

The current picture of the collapse and explosion of massive stars and the formation of neutron stars is reviewed. According to the favored scenario, however by no means proven and undisputed, neutrinos deposit the energy of the explosion…

Astrophysics · Physics 2010-11-19 H. -Th. Janka , K. Kifonidis , M. Rampp

We explore with self-consistent 2D F{\sc{ornax}} simulations the dependence of the outcome of collapse on many-body corrections to neutrino-nucleon cross sections, the nucleon-nucleon bremsstrahlung rate, electron capture on heavy nuclei,…

Solar and Stellar Astrophysics · Physics 2018-01-30 Adam Burrows , David Vartanyan , Joshua C. Dolence , M. Aaron Skinner , David Radice

The past decade has witnessed tremendous progress in the theoretical and computational tools that produce our understanding of nuclei. A number of microscopic calculations of nuclear electroweak structure and reactions have successfully…

Nuclear Theory · Physics 2018-03-14 Saori Pastore

Different approaches to the calculation of neutrino-nucleus cross sections are summarized. Potential impact of improving the nuclear physics input into neutrino interactions and cross section calculations on uncovering new physics is…

Nuclear Theory · Physics 2018-05-09 A. B. Balantekin

The r-process of nucleosynthesis requires a large neutron-to-seed nucleus ratio. This does not, however, that there be an excess of neutrons over protons. If the expansion of the material is sufficiently rapid and the entropy per nucleon is…

Astrophysics · Physics 2007-05-23 Bradley S. Meyer

The neutrino driven wind during a core collapse supernova is an attractive site for r-process nucleosynthesis. The electron fraction $Y_e$ in the wind depends on observable neutrino energies and luminosities. The mean antineutrino energy is…

Astrophysics · Physics 2009-11-07 C. J. Horowitz

The neutrino experiments utilize heavy nuclear targets to achieve high statistics neutrino-nucleus interaction event rate, which leads to systematic uncertainties in the oscillation parameters due to the nuclear effects and uncertainties in…

High Energy Physics - Phenomenology · Physics 2024-10-07 R Lalnuntluanga , R K Pradhan , A Giri

Extrapolation of perturbative nucleon spin fluctuation rates seems to suggest a strong suppression of weak interactions in supernova cores. We derive a new sum rule for the dynamical spin-density structure function which relates the spin…

Astrophysics · Physics 2008-11-26 Guenter Sigl

The interaction of neutrinos with nucleons in the envelope of a remnant of collapse with a strong magnetic field during the passage of the main neutrino flux is investigated. General expressions are derived for the reaction rates and for…

Astrophysics · Physics 2015-06-24 A. A. Gvozdev , I. S. Ognev

Supernovae are the most powerful cosmic sources of MeV neutrinos. These elementary particles play a crucial role when the evolution of a massive star is terminated by the collapse of its core to a neutron star or a black hole and the star…

High Energy Astrophysical Phenomena · Physics 2018-04-25 H. -Th. Janka

In this article we will review the role and properties of hyperons in finite and infinite nuclear systems. In particular, we will revise different production mechanisms of hypernuclei, as well as several aspects of hypernuclear $\gamma$-ray…

Nuclear Theory · Physics 2018-11-14 Isaac Vidana

Recent observations of supernovae, supernova remnants, and radio pulsars suggest that there are correlations between pulsar kicks and spins, infrared and gamma-ray line profiles, supernova polarizations, and ejecta debris fields. A…

Astrophysics · Physics 2007-05-23 Adam Burrows

Cross sections for the interactions of ultrahigh-energy neutrinos with nucleons are evaluated in light of new information about nucleon structure functions. For $10^{20}$--eV neutrinos, the cross section is about 2.4 times previous…

High Energy Physics - Phenomenology · Physics 2009-05-05 Raj Gandhi , Chris Quigg , Mary Hall Reno , Ina Sarcevic

The histories of core-collapse supernova theory and of neutrino physics have paralleled one another for more than seventy years. Almost every development in neutrino physics necessitated modifications in supernova models. What has emerged…

Solar and Stellar Astrophysics · Physics 2018-12-17 Adam Burrows

The type II supernova is considered as a candidate site for the production of heavy elements. The nucleosynthesis occurs in an intense neutrino flux, we calculate the electron fraction in this environment.

High Energy Physics - Phenomenology · Physics 2009-11-10 U. Solis , J. C. D'Olivo , L. G. Cabral-Rosetti
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