Symmetry and Quantum Chromodynamics

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 1808

Special Issue Editors


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Guest Editor
Department of Physics, Pukyong National University (PKNU), Busan 48513, Republic of Korea
Interests: nonperturbative QCD; hadron structure; neutrino properties; chiral symmetry
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Guest Editor
Asia Pacific Center for Theoretical Physics (APCTP), Pohang, Republic of Korea
Interests: scattering amplitude; precise collider phenomenology; perturbative QCD and QCD

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Guest Editor
Departamento de Física, Universidad de Sonora, Boulevard Luis Encinas J. y Rosales, Colonia Centro, Hermosillo 83000, Mexico
Interests: QCD; hadron physics in vacuum; hadron physics under extreme conditions of temperature and density
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Quantum chromodynamics (QCD) is known as the non-Abelian Yang–Mills gauge theory, which is a part of the standard model (SM) and is universally believed to be a robust quantum field theory for describing the strong interaction between quarks and gluons forming hadrons. Depending on the strength of the running coupling, QCD can be classified into non-perturbative QCD and perturbative QCD. The latter is relatively well understood, while the former, which has the properties of confinement and spontaneous chiral symmetry breaking (SCSB), is still poorly understood. To date, QCD confinement remains unresolved, and it is one of the seven millennium prize problems. Also, the SCSB is a very important mechanism to understand the origin of the hadron masses. In the 50 years of the existence of the QCD theory, many impressive signs of progress have been made in understanding the features of QCD both theoretically and experimentally, as well as lattice QCD simulation and global QCD analysis. However, more studies on the QCD properties and symmetries are still needed to resolve the remaining problems to fully understand the QCD theory.

This Special Issue aims to provide new insight into the QCD properties and symmetry from different theoretical and experimental perspectives as well as lattice QCD and global QCD analysis. With this aim, we kindly ask our colleagues to contribute and to share their research on QCD properties and symmetries.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following: QCD properties—color confinement and SCSB; hadron structure; gluon saturation; non-perturbative QCD; QCD under extreme conditions; and QCD beyond standard model.

We look forward to receiving your contributions.

Dr. Parada Tobel Paraduan Hutauruk
Dr. Heribertus Bayu Hartanto
Prof. Dr. Jesus Javier Cobos-Martinez
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • color confinement and SCSB
  • hadron structure
  • gluon saturation
  • non-perturbative QCD
  • QCD under extreme condition
  • QCD beyond standard model

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Published Papers (2 papers)

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Research

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21 pages, 1498 KB  
Article
Effects of Dark Matter on the Properties of Strange Quark Stars
by Jing Huang, Gan Wu, Xiao-Yang Zhang, Jin-Biao Wei and Huan Chen
Symmetry 2026, 18(4), 663; https://doi.org/10.3390/sym18040663 - 16 Apr 2026
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Abstract
We investigate the effects of dark matter on the properties of strange quark stars within the framework of general relativity with two fluids coupled only by gravity. Adopting the color–flavor-locked model for strange quark matter and considering both fermionic (free fermion gas) and [...] Read more.
We investigate the effects of dark matter on the properties of strange quark stars within the framework of general relativity with two fluids coupled only by gravity. Adopting the color–flavor-locked model for strange quark matter and considering both fermionic (free fermion gas) and bosonic (polytropic) equations of state for dark matter, we systematically study the structure and tidal deformability of dark matter-admixed strange stars. Our results show that the presence of dark matter significantly modifies the mass–radius relations, with the maximum mass of dark matter-admixed strange stars exhibiting a non-monotonic dependence on the dark matter mass fraction χ, which reaches a minimum at an intermediate value of χ. The tidal deformability Λ of dark matter-admixed strange stars shows complex behavior depending on both the stellar mass and dark matter fraction, with Λβ (the compactness parameter) relations deviating from the universal relations observed for pure strange stars or dark stars. Our findings demonstrate that dark matter-admixed strange stars with different configurations but identical masses and radii can be distinguished by their tidal deformabilities, providing potential observational signatures for detecting dark matter in compact astrophysical objects. The results are compared with current astrophysical constraints from gravitational wave observations and pulsar measurements. Full article
(This article belongs to the Special Issue Symmetry and Quantum Chromodynamics)
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Review

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49 pages, 1451 KB  
Review
Triply Heavy Ω Baryons with Jethad: A High-Energy Viewpoint
by Francesco Giovanni Celiberto
Symmetry 2026, 18(1), 29; https://doi.org/10.3390/sym18010029 - 23 Dec 2025
Cited by 2 | Viewed by 803
Abstract
We investigate the leading-power fragmentation of triply heavy Ω baryons in high-energy hadronic collisions. Extending our previous work on the Ω3c sector, we release the full OMG3Q1.0 family of collinear fragmentation functions by completing the description of the charm channel and [...] Read more.
We investigate the leading-power fragmentation of triply heavy Ω baryons in high-energy hadronic collisions. Extending our previous work on the Ω3c sector, we release the full OMG3Q1.0 family of collinear fragmentation functions by completing the description of the charm channel and delivering novel Ω3b functions. These hadron-structure-oriented functions are constructed from improved proxy-model calculations for heavy-quark and gluon fragmentation, matched to a flavor-aware DGLAP evolution based on the HF-NRevo scheme. For phenomenological applications, we employ the (sym)Jethad multimodular interface to compute and analyze NLL/NLO+ semi-inclusive Ω3Q plus jet distributions at the HL-LHC and FCC. This work consolidates the link between hadron structure, rare baryon production, and resummed QCD at the energy frontier. Full article
(This article belongs to the Special Issue Symmetry and Quantum Chromodynamics)
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