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Particles, Volume 6, Issue 2

2023 June - 15 articles

Cover Story: A review of the recent progress and present status on the study of transverse momentum dependent fragmentation functions, which tell us how colored quarks and gluons produced at high-energy collisions transform into color-neutral hadrons observed by detectors.
Several topics are selected, covering QCD factorization and evolution, parton spin and hadron spin dependence, and high-twist effects. With a particular focus on phenomenology, recent experimental measurements, global analyses, and some model calculations are discussed in depth. As an active frontier of nuclear and particle physics, it is closely related to the measurements taken in many existing experiments and future facilities, such as electron-ion colliders. View this paper
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Articles (15)

  • Article
  • Open Access
1 Citations
2,473 Views
8 Pages

Design and Beam Dynamic Studies of an Injector for a Compact THz Coherent Radiation Source

  • Siriwan Jummunt,
  • Wanisa Promdee,
  • Thakonwat Chanwattana,
  • Nawin Junthong,
  • Somjai Chunjarean and
  • Supat Klinkhieo

16 June 2023

An intense narrow-band terahertz (THz) radiation source has been designed to generate a broad tuning range of radiation frequencies between 0.5 THz and 5.0 THz. The THz radiation is produced when a short-bunch electron beam propagates through an undu...

(This article belongs to the Special Issue Generation and Application of High-Power Radiation Sources)
  • Article
  • Open Access
4,021 Views
10 Pages

Development of Type A Quadrupole Magnet for Siam Photon Source II

  • Supachai Prawanta,
  • Thongchai Leetha,
  • Pariwat Singthong,
  • Pajeeraphorn Numanoy,
  • Apichai Kwankasem,
  • Visitchai Sooksrimuang,
  • Chaiyut Preecha,
  • Supat Klinkiew and
  • Prapaiwan Sunwong

9 June 2023

A prototype of a type A quadrupole magnet has been designed and manufactured for the 3 GeV storage ring of Siam Photon Source II, the second synchrotron light source in Thailand. The required quadrupole gradient is 51 T/m with the magnet effective le...

(This article belongs to the Special Issue Generation and Application of High-Power Radiation Sources)
  • Article
  • Open Access
4 Citations
1,959 Views
17 Pages

6 June 2023

We address the question of the electromagneticdensity and the mass function for regular rotating electrically charged compact objects as determined by dynamical equations of nonlinear electrodynamics minimally coupled to gravity. The rotating electri...

  • Article
  • Open Access
2,900 Views
9 Pages

6 June 2023

A project is underway that aims to generate attosecond pulses via high-harmonic generation in rare gases, driven by extremely short and highly intense pulses from free-electron-laser oscillators. For this purpose, it has been planned that a new photo...

(This article belongs to the Special Issue Generation and Application of High-Power Radiation Sources)
  • Article
  • Open Access
12 Citations
2,925 Views
16 Pages

2 June 2023

The study of the high-density equation of state (EOS) and the search for a possible phase transition in dense baryonic matter is the main goal of beam energy scan programs with relativistic heavy ions at energies sNN= 2–5 GeV. The most stringen...

(This article belongs to the Special Issue Selected Papers from "Physics Performance Studies at FAIR and NICA")
  • Article
  • Open Access
7 Citations
2,691 Views
11 Pages

31 May 2023

Nuclear many-body theory is based on the tenet that nuclear systems can be accurately described as collections of point-like particles. This picture, while providing a remarkably accurate explanation of a wealth of measured properties of atomic nucle...

(This article belongs to the Special Issue 2022 Feature Papers by Particles’ Editorial Board Members)
  • Review
  • Open Access
2 Citations
7,764 Views
15 Pages

14 May 2023

Primordial black holes have become a highly intriguing and captivating field of study in cosmology due to their potential theoretical and observational significance. This review delves into a variety of mechanisms that could give rise to PBHs and exp...

(This article belongs to the Special Issue Beyond the Standard Models in Particle Physics and Cosmology)
  • Article
  • Open Access
3 Citations
4,368 Views
12 Pages

10 May 2023

The size and evolution of the matter created in a relativistic heavy-ion collision strongly depend on collision geometry, defined by centrality. Experimentally the centrality of collisions can be characterized by the measured multiplicities of the pr...

(This article belongs to the Special Issue Selected Papers from "Physics Performance Studies at FAIR and NICA")
  • Article
  • Open Access
5 Citations
3,858 Views
12 Pages

The van der Waals Hexaquark Chemical Potential in Dense Stellar Matter

  • Keith Andrew,
  • Eric V. Steinfelds and
  • Kristopher A. Andrew

9 May 2023

We explore the chemical potential of a QCD-motivated van der Waals (VDW) phase change model for the six-quark color-singlet, strangeness S = −2 particle known as the hexaquark with quark content (uuddss). The hexaquark may have internal structu...

  • Article
  • Open Access
2 Citations
2,331 Views
10 Pages

2 May 2023

Quarkonia represent one of the most valuable probes of the deconfined quark–gluon hot medium since the very first experimental studies with ultrarelativistic heavy-ion collisions. A significant step forward in characterizing the QCD matter via...

  • Review
  • Open Access
16 Citations
5,117 Views
31 Pages

Several Topics on Transverse Momentum-Dependent Fragmentation Functions

  • Kai-Bao Chen,
  • Tianbo Liu,
  • Yu-Kun Song and
  • Shu-Yi Wei

27 April 2023

The hadronization of a high-energy parton is described by fragmentation functions which are introduced through QCD factorizations. While the hadronization mechanism per se remains uknown, fragmentation functions can still be investigated qualitativel...

(This article belongs to the Special Issue Strong Interactions in the Standard Model: Massless Bosons to Compact Stars)
  • Article
  • Open Access
1 Citations
2,595 Views
18 Pages

26 April 2023

The elliptic flow (v2) of produced particles is one of the important observables sensitive to the transport properties of the strongly interacting matter created in relativistic heavy-ion collisions. Detailed differential measurements of v2 are also...

(This article belongs to the Special Issue Selected Papers from "Physics Performance Studies at FAIR and NICA")
  • Article
  • Open Access
7 Citations
2,581 Views
12 Pages

A Monte Carlo Study of Hyperon Production with the MPD and BM@N Experiments at NICA

  • Alexander Zinchenko,
  • Mikhail Kapishin,
  • Viktar Kireyeu,
  • Vadim Kolesnikov,
  • Alexander Mudrokh,
  • Dilyana Suvarieva,
  • Veronika Vasendina and
  • Dmitry Zinchenko

18 April 2023

Study of the strangeness production in heavy-ion collisions is one of the most important parts of the physics program of the BM@N and MPD experiments at the NICA accelerator complex. With collision energies sNN of 2.3–3.3 GeV in the fixed targe...

(This article belongs to the Special Issue Selected Papers from "Physics Performance Studies at FAIR and NICA")
  • Article
  • Open Access
2,655 Views
15 Pages

Chaos in QCD? Gap Equations and Their Fractal Properties

  • Thomas Klähn,
  • Lee C. Loveridge and
  • Mateusz Cierniak

11 April 2023

In this study, we discuss how iterative solutions of QCD-inspired gap-equations at the finite chemical potential demonstrate domains of chaotic behavior as well as non-chaotic domains, which represent one or the other of the only two—usually di...

(This article belongs to the Special Issue Strong Interactions in the Standard Model: Massless Bosons to Compact Stars)
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Particles - ISSN 2571-712X