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Physics, Volume 4, Issue 2

June 2022 - 22 articles

Cover Story: Enthusiasm and skepticism constitute pillars for the advance of reliable science. Throughout history, they have spontaneously emerged in nearly all relevant stages, particularly when a new epistemological paradigm is involved. The generalization of the celebrated Boltzmann–Gibbs theory was proposed in 1988 based on nonadditive entropies including the Boltzmann–Gibbs–von Neumann–Shannon one as a particular instance. Both pillars have naturally been present from the very beginning of the proposal. These facts are illustrated as follows: enthusiasm in the sustained actions of Jean Cleymans, to whom this Special Issue is dedicated, and in the skeptical talk delivered by Joseph Kapusta in 2021. In the present paper, his critical arguments are one by one rebutted, focusing in particular on the first-principle physical foundations of the entropic index q. View this paper
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Articles (22)

  • Review
  • Open Access
8 Citations
4,387 Views
13 Pages

Shell Model Applications in Nuclear Astrophysics

  • Gabriel Martínez-Pinedo and
  • Karlheinz Langanke

17 June 2022

In recent years, shell model studies have significantly contributed in improving the nuclear input, required in simulations of the dynamics of astrophysical objects and their associated nucleosynthesis. This review highlights a few examples such as e...

  • Brief Report
  • Open Access
1 Citations
2,162 Views
5 Pages

10 June 2022

In light of the recent Jefferson Laboratory (JLab) data for the nuclear 12C(e,e′p) transparencies, calculations, obtained in a relativistic multiple scattering Glauber approximation, are discussed. The shell-separated 12C transparencies are sho...

  • Article
  • Open Access
6 Citations
3,243 Views
13 Pages

Nonextensive Statistics in High Energy Collisions

  • Lucas Q. Rocha,
  • Eugenio Megías,
  • Luis A. Trevisan,
  • Khusniddin K. Olimov,
  • Fuhu Liu and
  • Airton Deppman

9 June 2022

The present paper reports on the methods of the systematic analysis of the high-energy collision distributions—in particular, those adopted by Jean Cleymans. The analysis of data on high-energy collisions, using non-extensive statistics, repres...

  • Article
  • Open Access
2,546 Views
12 Pages

Novel Outlook on the Eigenvalue Problem for the Orbital Angular Momentum Operator

  • George Japaridze,
  • Anzor Khelashvili and
  • Koba Turashvili

1 June 2022

Based on the novel prescription for the power function, (x+iy)m, the new expression for Ψ(x,y|m), the eigenfunction of the operator of the third component of the angular momentum, M^z, is presented. These functions are normalizable, single valued...

  • Article
  • Open Access
15 Citations
3,168 Views
14 Pages

Onset of Color Transparency in Holographic Light-Front QCD

  • Stanley J. Brodsky and
  • Guy F. de Téramond

30 May 2022

The color transparency (CT) of a hadron, propagating with reduced absorption in a nucleus, is a fundamental property of QCD (quantum chromodynamics) reflecting its internal structure and effective size when it is produced at high transverse momentum,...

  • Article
  • Open Access
13 Citations
4,828 Views
24 Pages

27 May 2022

Science and its evolution are based on complex epistemological structures. Two of the pillars of such a construction definitively are enthusiasm and skepticism, both being ingredients without which solid knowledge is hardly achieved and certainly not...

  • Article
  • Open Access
9 Citations
2,420 Views
12 Pages

The Status and Future of Color Transparency and Nuclear Filtering

  • Pankaj Jain,
  • Bernard Pire and
  • John P. Ralston

20 May 2022

Fourty years after its introduction, the phenomenon of color transparency remains a domain of controversial interpretations of experimental data. In this review, present evidence for or against color transparency manifestation in various exclusive ha...

  • Article
  • Open Access
8 Citations
2,688 Views
13 Pages

17 May 2022

The Japan Proton Accelerator Research Complex (J-PARC) is a hadron-accelerator facility that aims to provide secondary beams of kaons, pions, neutrinos, muons, and others together with the primary proton beam for investigating a wide range of science...

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Physics - ISSN 2624-8174