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The production of antiprotons in proton-nucleus and nucleus-nucleus reactions is calculated within the relativistic BUU approach employing proper selfenergies for the baryons and antiprotons and treating the p-bar annihilation…

Nuclear Theory · Physics 2009-10-22 Stefan Teis , Wolfgang Cassing , Tomoyuki Maruyama , Ulrich Mosel

We demonstrate, within symmetry unrestricted time-dependent density functional theory, the existence of new effects in low-energy nuclear reactions which originate from superfluidity. The dynamics of the pairing field induces solitonic…

Nuclear Theory · Physics 2017-07-27 Piotr Magierski , Kazuyuki Sekizawa , Gabriel Wlazłowski

Recent observations of the strong dominance of proton-neutron (pn) relative to pp and nn short-range correlations (SRCs) in nuclei indicate on possibility of unique new condition for asymmetric high density nuclear matter, in which the pp…

Nuclear Theory · Physics 2013-01-01 Michael McGauley , Misak M. Sargsian

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

Short range particle repulsion is rather important property of the hadronic and nuclear matter equations of state. We present a novel equation of state which is based on the virial expansion for the multicomponent mixtures with hard-core…

Nuclear Theory · Physics 2017-04-05 V. V. Sagun , K. A. Bugaiev , A. I. Ivanytskyi , D. R. Oliinychenko , I. N. Mishustin

We explore how anharmonicity, nuclear quantum effects (NQE), many-body dispersion interactions, and Pauli repulsion influence thermal properties of dispersion-bound molecular crystals. Accounting for anharmonicity with $ab$ $initio$…

Materials Science · Physics 2018-05-23 Hsin-Yu Ko , Robert A. DiStasio , Biswajit Santra , Roberto Car

We use a recently improved density-matrix expansion to calculate the nuclear energy density functional in the framework of in-medium chiral perturbation theory. Our calculation treats systematically the effects from $1\pi$-exchange,…

Nuclear Theory · Physics 2015-05-14 N. Kaiser , W. Weise

Single and double coincidence nucleon spectra in the $\Lambda$-hypernuclei weak decay are evaluated and discussed using a microscopic formalism. Nuclear matter is employed together with the local density approximation which allows us to…

Nuclear Theory · Physics 2008-11-26 E. Bauer

The nucleon-nucleon ($NN$) potential is the residual interaction of the strong interaction in the low-energy region and is also the fundamental input to the study of atomic nuclei. Based on the non-perturbative properties of the quantum…

Nuclear Theory · Physics 2024-10-02 Ke Nan , Jinniu Hu , Hong Shen , Ying Zhang

Repulsive short-range interactions can induce p-wave attraction between fermions in dense matter and lead to Cooper pairing at the Fermi surface. We investigate this phenomenon, well-known as the Kohn-Luttinger effect in condensed matter…

Nuclear Theory · Physics 2024-12-06 Mia Kumamoto , Sanjay Reddy

We investigate the role of the pairing field dynamics in low-energy heavy ion reactions within the nuclear time-dependent density functional theory extended to superfluid systems. Recently, we have reported on unexpectedly large effects…

Nuclear Theory · Physics 2018-06-01 Kazuyuki Sekizawa , Piotr Magierski , Gabriel Wlazłowski

A supersymmetric inversion method is applied to the singlet $^1S_0$ and $^1P_1$ neutron-proton elastic phase shifts. The resulting central potential has a one-pion-exchange (OPE) long-range behavior and a parity-independent short-range…

Nuclear Theory · Physics 2009-11-07 J. -M. Sparenberg

A systematic analysis of the fusion cross sections around the Coulomb barrier energies with stable weakly bound ($^{6}$Li,$^{7}$Li,$^{9}$Be) and strongly bound $^{12}$C projectiles on various targets was performed by using neutron flow…

Nuclear Theory · Physics 2022-12-02 S. Appannababu , V. V. Parkar , V. Jha , S. Kailas

A manifestation of the Pauli Exclusion Principle is observed when fermions are trapped in the ground state of a 2D harmonic oscillator trap at very low temperatures. This non-interaction of fermions results in the formation of Pauli…

Statistical Mechanics · Physics 2022-03-15 Swarnava Mitra , Aditya Mishra

In spite of the success of the Bethe-Weizs\"acker mass formula in its modern numerical and predictive implementations, the common-knowledge principle that it is electrostatics which, ultimately, favors neutron-rich nuclei still presents…

Nuclear Theory · Physics 2024-08-27 Carmine Anzivino , Vinay Vaibhav , Alessio Zaccone

[Background] Nuclear pairing is a well-established many-body correlation, particularly among like particles in a spin-singlet state. However, the strength of spin-triplet proton-neutron (pn) pairing in nuclei has remained a long-standing…

Nuclear Theory · Physics 2024-11-22 Kenichi Yoshida

This paper presents the first calculations of proton inelastic scattering in which the medium effect of Pauli blocking is included through an exact, rather than angle averaged, operator. This improvement is important in the isoscalar…

Nuclear Theory · Physics 2007-05-23 E. J. Stephenson , R. C. Johnson , F. Sammarruca

We consider a one dimension Kac model with conservation of energy and an exclusion rule: Fix a number of particles $n$, and an energy $E>0$. Let each of the particles have an energy $x_j \geq 0$, with $\sum_{j=1}^n x_j = E$. For some…

Probability · Mathematics 2021-11-09 Eric Carlen , Bernt Wennberg

In a two-level system, constituted by two serially coupled single level quantum dots, coupled to external leads we find that the current is suppressed in one direction of biasing caused by a fully occupied two-electron triplet state in the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. Fransson , M. Rasander

The detailed investigation of microscopic mechanisms leading to the formation of bubble structures in the nuclei has been performed in the framework of covariant density functional theory. The main emphasis of this study is on the role of…

Nuclear Theory · Physics 2022-08-25 U. C. Perera , A. V. Afanasjev