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We review our research work on the single-particle properties and the equation of state (EOS) of isospin asymmetric nuclear matter within the framework of the Brueckner-Hartree-Fock (BHF) approach extended by including a microscopic…

Nuclear Theory · Physics 2013-07-12 Wei Zuo

Temperature effects on the neutron matter equation of state are investigated in the framework of chiral effective field theory. Latest, state-of-the-art chiral two-nucleon forces are applied from third to fifth order in the chiral expansion…

Nuclear Theory · Physics 2020-07-15 F. Sammarruca , R. Machleidt , R. Millerson

We compute from chiral two- and three-nucleon interactions the energy per particle of symmetric nuclear matter and pure neutron matter at third-order in perturbation theory including self-consistent second-order single-particle energies.…

Nuclear Theory · Physics 2017-04-05 J. W. Holt , N. Kaiser

Proper treatment of the many-body interactions is of paramount importance in our understanding of strongly correlated systems. Here we investigate the effects of particle-hole fluctuations on the Berezinskii-Kosterlitz-Thouless (BKT)…

Quantum Gases · Physics 2026-03-13 Junru Wu , Zongpu Wang , Lin Sun , Kaichao Zhang , Chuping Li , Yuxuan Wu , Pengyi Chen , Dingli Yuan , Qijin Chen

We study the recombination process of three atoms scattering into an atom and diatomic molecule in heteronuclear mixtures of ultracold atomic gases with large and positive interspecies scattering length at finite temperature. We calculate…

Quantum Gases · Physics 2017-09-13 Samuel B. Emmons , Daekyoung Kang , Bijaya Acharya , Lucas Platter

The effect of multibody massless neutrino exchanges between neutrons inside a finite-size neutron star is studied. We use an effective Lagrangian, which incorporates the effect of the neutrons on the neutrinos. Following Schwinger, it is…

High Energy Physics - Phenomenology · Physics 2016-08-25 As. Abada , O. Pène , J. Rodriguez-Quintero

The single-nucleon potential in hot nuclear matter is investigated in the framework of the Brueckner theory by adopting the realistic Argonne V18 or Nijmegen 93 two-body nucleon-nucleon interaction supplemented by a microscopic three-body…

Nuclear Theory · Physics 2008-11-26 W. Zuo , Z. H. Li , U. Lombardo , G. C. Lu , H. -J. Schulze

We study the importance of the thermal behavior of the hadron-quark phase transition in neutron star (NS) mergers. To this end, we devise a new scheme approximating thermal effects to supplement any cold, barotropic hybrid equation of state…

High Energy Astrophysical Phenomena · Physics 2023-10-02 Sebastian Blacker , Andreas Bauswein , Stefan Typel

We make variational estimates for the binding energies of $^2H,~^3H,~^4He,~^{16}O,~^{40}Ca$, showing their running with the Similarity Renormalization Group (SRG) cutoff towards the infrared region and show the generalized Tjon lines that…

Nuclear Theory · Physics 2021-04-06 E. Ruiz Arriola , S. Szpigel , V. S. Timoteo

In this work we analyse positive- and negative-parity channels for the nucleon (spin $1/2$ octet), $\Delta$ and $\Omega$ baryons (spin $3/2$ decuplet) using lattice QCD. In Nature, at zero temperature, chiral symmetry is spontaneously…

High Energy Physics - Lattice · Physics 2017-04-05 Gert Aarts , Chris Allton , Davide De Boni , Simon Hands , Benjamin Jaeger , Chrisanthi Praki , Jon-Ivar Skullerud

Neutron-deuteron scattering in the context of ``pion-less'' Effective Field Theory at very low energies is investigated to next-to-next-to-leading order. Convergence is improved by fitting the two-nucleon contact interactions to the tail of…

Nuclear Theory · Physics 2009-11-10 Harald W. Griesshammer

We use the recently proposed In-Medium Similarity Renormalization Group (IM-SRG) to carry out a systematic study of closed-shell nuclei up to $\nuc{Ni}{56}$, based on chiral two- plus three-nucleon interactions. We analyze the capabilities…

Nuclear Theory · Physics 2013-04-02 H. Hergert , S. K. Bogner , S. Binder , A. Calci , J. Langhammer , R. Roth , A. Schwenk

We present solutions of the coupled, non-relativistic $^3S_1$-$^3D_1$ gap equations for neutron-proton pairing in symmetric nuclear matter, and estimate relativistic effects by solving the same gap equations modified according to minimal…

Nuclear Theory · Physics 2009-10-30 Oe. Elgaroey , L. Engvik , E. Osnes , M. Hjorth-Jensen

We construct a new noncovalent benchmark dataset 3BXB that combines halogen-bonded bimolecular complexes from the SH250 dataset [Kriz and Rezac, Phys. Chem. Chem. Phys. 2022, 24, 14794] with a third interacting partner, either H$_2$O or…

Chemical Physics · Physics 2025-07-24 Sharon A. Ochieng , Konrad Patkowski

We study the impact of three-body forces on the response functions of cold neutron matter. These response functions are determined in the random phase approximation (RPA) from a residual interaction expressed in terms of Landau parameters.…

Nuclear Theory · Physics 2015-06-23 D. Davesne , J. W. Holt , A. Pastore , J. Navarro

$^{3}P_{2}$ pairing in neutron matter is investigated using the Bonn potential models. We find pairing energy gaps in pure neutron matter comparable to the results of previous investigators when the attractive tensor coupling is included.…

Nuclear Theory · Physics 2009-10-30 Oe. Elgaroey , L. Engvik , M. Hjorth-Jensen , E. Osnes

We investigate single-particle properties in infinite nuclear matter using a variety of interactions. One of the focal points is to study the impact of chiral three-nucleon forces on the nucleon self-energy and related quantities, such as…

Nuclear Theory · Physics 2020-12-10 Francesca Sammarruca , Herbert Muether , Ruprecht Machleidt

The finite temperature Brueckner-Hartree-Fock approach is extended by introducing a microscopic three-body force. In the framework of the extended model, the equation of state of hot asymmetric nuclear matter and its isospin dependence have…

Nuclear Theory · Physics 2010-05-19 W. Zuo , Z. H. Li , A. Li , G. C. Lu

The properties of dilute neutron matter are mostly determined by the s-wave two-body (2N) interaction, while three-body (3N) interactions are suppressed by the Pauli principle. In a previous work, we showed that it can be advantageous to…

Nuclear Theory · Physics 2025-03-18 Viswanathan Palaniappan , S. Ramanan , Michael Urban

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
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