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Particles, Volume 8, Issue 1

March 2025 - 34 articles

Cover Story: A variational method with explicit energy functionals has previously been proposed to calculate the energy per nucleon of uniform nuclear matter, based on realistic nuclear forces. In this study, we aimed to extend this variational method to symmetric nuclear matter at zero temperature by using the Argonne v8’ two-body nuclear potential, which comprises the central, tensor, and spin-orbit components. Furthermore, this variational method for pure neutron matter with the Argonne v8’ potential at zero temperature was extended to finite temperatures by employing the variational method by Schmidt and Pandharipande. The obtained free energy per neutron of pure neutron matter was shown to be reasonable, and the self-consistency of the thermodynamic quantities was demonstrated. View this paper
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Articles (34)

  • Article
  • Open Access
1,409 Views
12 Pages

9 February 2025

I propose a data-driven surrogate model for the In-Medium Similarity Renormalization Group (IMSRG) method using Dynamic Mode Decomposition (DMD). First, the Magnus formulation of the IMSRG is leveraged to represent the unitary transformation of many-...

  • Article
  • Open Access
2 Citations
1,247 Views
14 Pages

7 February 2025

The density dependence of nuclear symmetry energy Esym(ρ) remains the most uncertain aspect of the equation of state (EOS) of supradense neutron-rich nucleonic matter. Utilizing an isospin-dependent parameterization of the nuclear EOS, we investi...

  • Article
  • Open Access
996 Views
25 Pages

Extensions of the Variational Method with an Explicit Energy Functional for Nuclear Matter with Spin-Orbit Force

  • Kento Kitanaka,
  • Toshiya Osuka,
  • Tetsu Sato,
  • Hayate Ichikawa and
  • Masatoshi Takano

7 February 2025

Two extensions of the variational method with explicit energy functionals (EEFs) with respect to the spin-orbit force were performed. In this method, the energy per nucleon of nuclear matter is explicitly expressed as a functional of various two-body...

  • Article
  • Open Access
1 Citations
1,631 Views
28 Pages

3 February 2025

The broken phase of the next-to-two-Higgs-doublet model (N2HDM) constitutes an archetype of extended Higgs sectors. In the presence of a softly broken Z2 symmetry throughout the scalar and Yukawa sectors, as the additional gauge singlet field does no...

  • Article
  • Open Access
1,588 Views
16 Pages

Derivation of Meson Masses in SU(3) and SU(4) Extended Linear Sigma Model at Finite Temperature

  • Abdel Nasser Tawfik,
  • Azar I. Ahmadov,
  • Alexandra Friesen,
  • Yuriy Kalinovsky,
  • Alexey Aparin and
  • Mahmoud Hanafy

The present study focused on the mesonic potential contributions to the Lagrangian of the extended linear sigma model (eLSM) for scalar and pseudoscalar meson fields across various quark flavors. The present study focused on the low-energy phenomenol...

  • Article
  • Open Access
1,620 Views
8 Pages

The NUCLEUS experiment, currently being commissioned at the Technical University of Munich, is designed to observe coherent elastic neutrino-nucleus scattering (CEνNS) from reactor neutrinos and measure its cross-section with a percent-level preci...

  • Review
  • Open Access
1,222 Views
9 Pages

This review highlights advancements in testing Lepton Flavour Universality (LFU) through semileptonic b-hadron decays at the LHCb detector. Measurements of the LFU R(D) and R(D*) provide evidence of deviations from Standard Model (SM) predictions, su...

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Particles - ISSN 2571-712X