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- Joint Institute for Nuclear ResearchRU1.2k papers
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- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1.2k papers
- Institute for Theoretical and Experimental PhysicsRU1.2k papers
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48 papers · 1 filter
Description of alpha-clustering of 8Be nucleus states in high-precision theoretical approach
D. M. Rodkin, Yu. M. Tchuvil'sky
Scrupulous theoretical study of 8Be nucleus states, both clustered and non-clustered, is performed over a wide range of the excitation energies. The quantities which characterize t…
Asymptotic characteristics of decay channels of light nuclei states in the ab initio approach
D. M. Rodkin, Yu. M. Tchuvil'sky
A new convenient method for precise theoretical calculations of quantities of traditional theory of nuclear reactions such as widths of resonances (including sub-threshold), and as…
Second virial coefficients of light nuclear clusters and their chemical freeze-out in nuclear collisions
K. A. Bugaev, O. V. Vitiuk, B. E. Grinyuk +13
Here we develop a new strategy to analyze the chemical freeze-out of light (anti)nuclei produced in high energy collisions of heavy atomic nuclei within an advanced version of the…
Induced surface and curvature tensions equation of state of hard spheres and its virial coefficients
Nazar S. Yakovenko, Kyrill A. Bugaev, Larissa V. Bravina +1
Here we present new results obtained for the equation of state with induced surface and curvature tensions. The explicit formulas for the first five virial coefficients of system p…
The energies and ANCs for 5Li resonances deduced from experimental p- scattering phase shifts using the effective-range and methods
Yu. V. Orlov
Recently a new method for deducing the energy and asymptotic normalization coefficient (ANC) from phase-shift data has been formulated and applied to resonance states. This dif…
Improved description of light nuclei through chiral effective field theory at leading order
M. Sanchez Sanchez, N. A. Smirnova, A. M. Shirokov +2
We propose an arrangement of the most commonly invoked version of the two-nucleon chiral potential such that the low-lying amplitude zero of the 1S0 partial wave is captured at lea…
From bound states to the continuum
Calvin W. Johnson, Kristina D. Launey, Naftali Auerbach +35
This white paper reports on the discussions of the 2018 Facility for Rare Isotope Beams Theory Alliance (FRIB-TA) topical program "From bound states to the continuum: Connecting bo…
Theoretical Study of Spin Observables in Elastic Scattering at Energies MeV
M. N. Platonova, V. I. Kukulin
Various spin observables (analyzing powers and spin-correlation parameters) in elastic scattering at MeV are analyzed within the framework of the refined Glau…
To the nature of nuclear force
V. I. Kukulin, V. N. Pomerantsev, O. A. Rubtsova +1
It has been shown for the first time that interaction, at least in some partial waves, can be quantitatively described by the superposition of a long-range one-pion exchange a…
New method of analytic continuation of elastic-scattering data to the negative-energy region and asymptotic normalization coefficients for O and C
L. D. Blokhintsev, A. S. Kadyrov, A. M. Mukhamedzhanov +1
A new method is proposed for extrapolation of elastic-scattering data to the negative-energy region for a short-range interaction. The method is based on the analytic approximation…
Possible signals of two QCD phase transitions at NICA-FAIR energies
K. A. Bugaev, A. I. Ivanytskyi, V. V. Sagun +9
The chemical freeze-out irregularities found with the most advanced hadron resonance gas model and possible signals of two QCD phase transitions are discussed. We found that the ce…
Empirical pairing gaps and neutron-proton correlations
B. S. Ishkhanov, S. Sidorov, T. Tretyakova +1
Analysis of various mass relations connected with neutron-proton correlations in atomic nuclei is carried out. On the example of chain it is shown that for self-adjoint nuc…
Extrapolation of scattering data to the negative-energy region. Application to the O system
L. D. Blokhintsev, A. S. Kadyrov, A. M. Mukhamedzhanov +1
The problem of analytic continuation of the scattering data to the negative-energy region to obtain information on asymptotic normalization coefficients (ANCs) of bound states is d…
Analysis of clustering phenomena in ab initio approaches
D. M. Rodkin, Yu. M. Tchuvil'sky
An approach for explicit consideration of cluster effects in nuclear systems and accurate ab initio calculations of cluster characteristics of nuclei is devised. The essential bloc…
Deep learning: Extrapolation tool for ab initio nuclear theory
Gianina Alina Negoita, James P. Vary, Glenn R. Luecke +8
Ab initio approaches in nuclear theory, such as the no-core shell model (NCSM), have been developed for approximately solving finite nuclei with realistic strong interactions. The…
Nucleon- Scattering and Resonances in He and Li with JISP16 and Daejeon16 interactions
A. M. Shirokov, A. I. Mazur, I. A. Mazur +5
The SS-HORSE approach to analysis of resonant states is generalized to the case of charged particle scattering utilizing analytical properties of partial scattering amplitudes and…
Deuteron disintegration by reactor antineutrinos
L. M. Slad
The existence of a new interaction involving the electron neutrino and the nucleons, which has received a convincing confirmation through a good agreement between the theoretical a…
Probing the tricritical endpoint of QCD phase diagram at NICA-FAIR energies
K. A. Bugaev, A. I. Ivanytskyi, V. V. Sagun +6
In this contributions we discuss the novel version of hadron resonance gas model which is based on the induced surface tension concept. Also we present new arguments in favor of a…
Resonance properties including asymptotic normalization coefficients deduced from phase-shift data without the effective-range function
B. F. Irgaziev, Yu. V. Orlov
Recently, a new method for the calculation of asymptotic normalization coefficients (ANC) from phase-shift data has been formulated, proved and used for bound states. This meth…
Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD final State interactions (THESEUS) for FAIR-NICA-SPS-BES/RHIC energies
P. Batyuk, D. Blaschke, M. Bleicher +7
We present a new event generator based on the three-fluid hydrodynamics (3FH) approach, followed by a particlization at the hydrodynamic decoupling surface and a subsequent UrQMD a…
Extrapolation of scattering data to the negative-energy region II
L. D. Blokhintsev, A. S. Kadyrov, A. M. Mukhamedzhanov +1
A problem of analytical continuation of scattering data to the negative-energy region to obtain information about bound states is discussed within an exactly solvable potential mod…
The Flow Constraint Influence on the Properties of Nuclear Matter Critical Endpoint
A. I. Ivanytskyi, K. A. Bugaev, V. V. Sagun +2
We propose a novel family of equations of state for symmetric nuclear matter based on the induced surface tension concept for the hard-core repulsion. It is shown that having only…
Mass differences and neutron pairing in Ca, Sn and Pb isotopes
B. S. Ishkhanov, S. V. Sidorov, T. Yu. Tretyakova +1
Various estimates of the even-odd effect of the mass shell of atomic nuclei are considered. Based on the experimental mass values of the Ca, Sn, and Pb isotopes, the dependence of…
Two-particle multiplets splitting as a guideline in nucleon pairing estimations
L. T. Imasheva, B. S. Ishkhanov, S. V. Sidorov +2
The ground state multiplet structure for nuclei over the wide range of mass number was calculated in -approximation and different mass relations for pairing energy was analy…