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Thermal effects for inelastic neutrino-nucleus scattering off even-even nuclei in the iron region are studied. Allowed and first-forbidden contributions to the cross sections are calculated within the quasiparticle random phase…

Nuclear Theory · Physics 2015-05-20 Alan A. Dzhioev , A. I. Vdovin , V. Yu. Ponomarev , J. Wambach

Calorimetric and coalescence techniques have been employed to probe equilibration for hot nuclei produced in heavy ion collisions of 35 to 55 MeV/u projectiles with medium mass targets. Entrance channel mass asymmetries and energies were…

A theoretical method for the estimation of cross sections and rates for excitation and charge transfer processes in low-energy hydrogen atom collisions with neutral atoms, based on an asymptotic two-electron model of ionic-covalent…

Atomic Physics · Physics 2016-05-04 Paul S. Barklem

In stellar environments nuclei appear at finite temperatures, becoming extremely hot in core-collapse supernovae and neutron star mergers. However, due to theoretical and computational complexity, most model calculations of nuclear…

Nuclear Theory · Physics 2023-09-19 Ante Ravlić , Esra Yüksel , Tamara Nikšić , Nils Paar

The caloric curve (excitation energy per particle as a function of temperature) for finite nuclei is calculated within the non-linear Walecka model for different proton fractions and different parameterizations. The results obtained are…

Nuclear Theory · Physics 2009-11-07 C. Providencia , D. P. Menezes , L. Brito

Ensemble inequivalence has been observed in several systems. In particular it has been recently shown that negative specific heat can arise in the microcanonical ensemble in the thermodynamic limit for systems with long-range interactions.…

Statistical Mechanics · Physics 2015-06-24 F. Leyvraz , S. Ruffo

Structure of hot dense matter at subnuclear densities is investigated by quantum molecular dynamics (QMD) simulations. We analyze nucleon distributions and nuclear shapes using two-point correlation functions and Minkowski functionals to…

Nuclear Theory · Physics 2014-11-18 Gentaro Watanabe , Katsuhiko Sato , Kenji Yasuoka , Toshikazu Ebisuzaki

In this work we calculate the caloric curve (excitation energy per particle as a function of temperature) for finite nuclei within the non--linear Walecka model for different proton fractions. It is shown that the caloric curve is sensitive…

Nuclear Theory · Physics 2009-11-07 D. P. Menezes , C. Providencia

The transverse Ising magnet Hamiltonian describing the Ising chain in a transverse magnetic field is the archetypal example of a system that undergoes a transition at a quantum critical point (QCP). The columbite CoNb$_2$O$_6$ is the…

Strongly Correlated Electrons · Physics 2016-08-02 Tian Liang , S. M. Koohpayeh , J. W. Krizan , T. M. McQueen , R. J. Cava , N. P. Ong

The thermodynamics of the O(N) nonlinear sigma model in 1+1 dimensions is studied. We calculate the finite temperature effective potential in leading order in the 1/N expansion and show that at this order the effective potential can be made…

High Energy Physics - Phenomenology · Physics 2007-05-23 Harmen J. Warringa

The expansion of an isolated hot spherical nucleus with excitation energy and its caloric curve are studied in a thermodynamic model with the SkM* force as the nuclear effective two-body interaction. The calculated results are shown to…

Nuclear Theory · Physics 2010-12-23 J. N. De , S. K. Samaddar , X. Vinas , M. Centelles

We derive the equation of state for hot nuclear matter using Walecka model in a nonperturbative formalism. We include here the vacuum polarisation effects arising from the nucleon and scalar mesons through a realignment of the vacuum. A…

Nuclear Theory · Physics 2009-11-07 Amruta Mishra , P. K. Panda , W. Greiner

The performances of quantum thermometry in thermal equilibrium together with the output power of certain class of quantum engines share a common characteristic: both are determined by the heat capacity of the probe or working medium. After…

Quantum Physics · Physics 2020-08-31 Camille L. Latune , Ilya Sinayskiy , Francesco Petruccione

We explain the low-energy anomaly reported in several experimental studies of the radiative dipole strength functions in medium-mass nuclei. These strength functions at very low gamma-energies correspond to the gamma-transitions between…

Nuclear Theory · Physics 2015-06-15 Elena Litvinova , Nikolay Belov

We have used a realistic nuclear potential, AV18, and a many body technique, the lowest order constraint variational (LOCV) approach, to calculate the properties of hot magnetized nuclear matter. By investigating the free energy, spin…

Nuclear Theory · Physics 2017-03-02 Z. Rezaei , G. H. Bordbar

Specific heat has been measured down to 600 mK and up to 8 Tesla by the highly sensitive AC microcalorimetry on the MgCNi3 single crystals with Tc ~ 7 K. Exponential decay of the electronic specific heat at low temperatures proved that a…

We point out similarity of thermodynamic conditions reached in intermediate energy nuclear collisions and in supernova explosions. We show that a statistical approach, which has been previously applied for nuclear multifragmentation…

Nuclear Theory · Physics 2009-11-11 A. S. Botvina , I. N. Mishustin

A closed-form thermodynamic pole approach,TPA, is developed for average description of the E1 radiative strength functions using the microcanonical ensemble for initial states. A semiclassical description of the collective excitation…

Nuclear Theory · Physics 2007-05-23 V. A. Plujko

The influence of finite temperatures and pairing correlations on the ground state properties of multi $\Lambda$- Ca, Sn and Pb hypernuclei is explored using finite temperature Hartree Fock Bogoliubov approach and contact pairing…

Nuclear Theory · Physics 2024-07-30 Bahruz Suleymanli , Kutsal Bozkurt , Elias Khan , Haşim Güven , Jérôme Margueron

BaH (and its isotopomers) is an attractive molecular candidate for laser cooling to ultracold temperatures and a potential precursor for the production of ultracold gases of hydrogen and deuterium. The theoretical challenge is to simulate…

Atomic Physics · Physics 2016-05-04 Keith Moore , Brendan M. McLaughlin , Ian C. Lane