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Recently-reported data suggest that bubble nucleation on surfaces with nano-sized features (cavities and posts) may occur close to the thermodynamic saturation temperature. However, according to the traditional theory of heterogeneous…

We study relationships between properties of collective excitations in finite nuclei and the phase transition density $n_t$ and pressure $P_t$ at the inner edge separating the liquid core and the solid crust of a neutron star. A theoretical…

Nuclear Theory · Physics 2015-06-19 N. Paar , Ch. C. Moustakidis , T. Marketin , D. Vretenar , G. A. Lalazissis

A consistent theory is developed of the volume energy oscillations of spherical nuclei due to sharpness of the Fermi distribution boundary for quasiparticles. The lowest value of the oscillating part of the energy corresponds to a magic…

Nuclear Theory · Physics 2007-05-23 V. G. Nosov , A. M. Kamchatnov

The shape evolutions of the pear-shaped nuclei $^{224}$Ra and even-even $^{144-154}$Ba with temperature are investigated by the finite-temperature relativistic mean field theory with the treatment of pairing correlations by the BCS…

Nuclear Theory · Physics 2017-11-15 Wei Zhang , Yi Fei Niu

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

The pair correlations in mesoscopic systems such as $nm$-size superconducting clusters and nuclei are studied at finite temperature for the canonical ensemble of fermions in model spaces with a fixed particle number: i) a degenerate…

Atomic and Molecular Clusters · Physics 2009-11-10 S. Frauendorf , N. K. Kuzmenko , V. M. Mikhajlov , J. Sheikh

Structure formation creates high temperature and density regions in the Universe that allow the conversion of matter into more stable states, with a corresponding emission of relativistic matter and radiation. An example of such a mechanism…

Cosmology and Nongalactic Astrophysics · Physics 2013-06-11 D. Boriero , P. C. de Holanda , M. Motta

Mergers of binary neutron stars create conditions of supranuclear density $n\gtrsim n_{\rm nuc}\simeq 0.17 {\rm fm}^{-3}$ and moderate temperature $50\lesssim T \lesssim 90 {\rm MeV}$. These events thus probe a sensitive region of the…

High Energy Physics - Phenomenology · Physics 2013-11-28 Pisin Chen , Lance Labun

The nuclear collective response at finite temperature is investigated for the first time in the quantum framework of the small amplitude limit of the extended TDHF approach, including a non-Markovian collision term. It is shown that the…

Nuclear Theory · Physics 2008-11-26 Denis Lacroix , Philippe Chomaz , Sakir Ayik

The S shape of the canonical heat capacity is known as a signature of the pairing transition and along an isotopic chain it is significantly more pronounced for nuclei with an even number of neutrons than with an odd number. Although the…

Temperature dependent relativistic mean-field (RMF) plus BCS approach has been used for the first time to investigate the anti-bubble effect of the temperature and deformation in the light, medium-heavy and superheavy nuclei. Influence of…

Nuclear Theory · Physics 2019-01-30 G. Saxena , M. Kumawat , Mamta Aggarwal

We investigate the effect of temperature on $\alpha$-particle clustering in the diluted nucleus $^{16}\text{O}$ using the multi-constrained finite-temperature relativistic Hartree-Bogoliubov model with the DD-ME2 interaction. At a critical…

Nuclear Theory · Physics 2025-06-03 M. Davies , E. Yüksel , J. -P. Ebran , E. Khan , P. Stevenson

Nucleon selfenergies and spectral functions are calculated at the saturation density of symmetric nuclear matter at finite temperatures. In particular, the behaviour of these quantities at temperatures above and close to the critical…

Nuclear Theory · Physics 2008-11-26 T. Alm , G. Roepke , A. Schnell , N. H. Kwong , H. S. Koehler

Local moment formation driven by the on--site repulsion $U$ is one of the most fundamental features in the Hubbard model. At the simplest level, the temperature dependence of the local moment is expected to have a single structure at $T…

Strongly Correlated Electrons · Physics 2009-10-31 Thereza Paiva , R. T. Scalettar , Carey Huscroft , A. K. McMahan

We present recent results in theoretical studies on nuclear structure and reaction beyond mean field, using the adiabatic self-consistent collective coordinate method and its extension. We also present new results with the…

Nuclear Theory · Physics 2020-08-26 Takashi Nakatsukasa , Yu Kashiwaba , Fang Ni , Kouhei Washiyama , Kai Wen , Nobuo Hinohara

Liquid helium under negative pressures represents a unique possibility for studying nucleation and growth dynamics of cavities at low temperatures down to absolute zero. We analyze the growth dynamics of cavities and determine the…

Other Condensed Matter · Physics 2021-09-24 S. N. Burmistrov , L. B. Dubovskii

Dimensional transmutation in classically conformal invariant theories may explain the electro-weak scale and the fact that so far nothing but the Standard Model (SM) particles have been observed. We discuss in this paper implications of…

High Energy Physics - Phenomenology · Physics 2014-12-02 Manfred Lindner , Steffen Schmidt , Juri Smirnov

$\beta$-decay properties of nuclei are investigated within the relativistic nuclear energy density functional framework by varying the temperature and density, conditions relevant to the final stages of stellar evolution. Both thermal and…

Nuclear Theory · Physics 2021-09-06 A. Ravlic , E. Yuksel , Y. F. Niu , N. Paar

We study the finite temperature and density effects on beta decay rates to compute their contributions to nucleosynthesis. QED type corrections to beta decay from the hot and dense background are estimated in terms of the statistical…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Samina S. Masood

We develop a nonperturbative technique in field theory to study properties of infinite nuclear matter at zero temperature as well as at finite temperatures. Here we dress the nuclear matter with off-mass shell pions. The techniques of…

Nuclear Theory · Physics 2015-06-26 H. Mishra , S. P. Misra , P. K. Panda , B. K. Parida