Results 41 to 50 of about 1,018,691 (207)

An Overview of Scale Invariance in Proton Structure With Holographic Insights

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
The concept of self‐similarity in the internal structure of the proton, rooted in scale invariance and fractal geometry, provides an intriguing framework for understanding the behavior of parton distribution functions (PDFs), particularly in the small x region probed in deep inelastic scattering (DIS).
Akbari Jahan, Fu-Hu Liu
wiley   +1 more source

Simulating one-dimensional quantum chromodynamics on a quantum computer: Real-time evolutions of tetra- and pentaquarks

open access: yesPhysical Review Research, 2023
Quantum chromodynamics (QCD)—the theory of quarks and gluons—has been studied for decades, but it is yet to be fully understood. A recent example is the prediction and experimental discovery of tetraquarks, which opened a new research field.
Yasar Y. Atas   +6 more
doaj   +1 more source

Approximate Mass Spectra of the Heavy Mesons Under a Coulomb Plus Logarithmic Spin‐Dependent Potential Function

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this paper, we presented an approximate analytical treatment of the Coulomb plus logarithmic potential using time‐independent perturbation theory to investigate the mass spectra of bottomonium and charmonium mesons for the low‐order quantum states.
E. Omugbe   +4 more
wiley   +1 more source

Lectures on quantum chromodynamics [PDF]

open access: yes, 2001
Quantum chromodynamics is the fundamental theory of strong interactions. It is a physical theory describing Nature. Lectures on Quantum Chromodynamics concentrates, however, not on the phenomenological aspect of QCD; books with comprehensive coverage of ...
Smilga, Andrei
core  

Round table: What can we learn about confinement and anoma-lous effects in QCD using analog systems?

open access: yesEPJ Web of Conferences, 2017
We discuss an number of examples for recent connections between emergent phenomena in many-body systems in atomic and condensed matter physics, and confinement and other non-perturbative phenomena in quantum chromodynamics.
Cristina Diamantini M.   +4 more
doaj   +1 more source

Discoveries in ultra-peripheral collisions: Past, present, future [PDF]

open access: yesEPJ Web of Conferences
Ultra-relativistic heavy-ion collisions produce extremely strong electromagnetic field which provide a uniquely intense and energetic source of photons. The photons manifest from such ultra-Lorentz contracted electromagnetic fields have, in recent years,
Brandenburg James Daniel
doaj   +1 more source

Polarization rotation of chiral fermions in vortical fluid

open access: yesPhysics Letters B, 2021
The rotation of polarization occurs for light interacting with chiral materials. It requires the light states with opposite chiralities interact differently with the materials.
Defu Hou, Shu Lin
doaj   +1 more source

Extraction of Effective Parameters From Transverse Momentum Spectra of Heavy Quarkonia in Proton–Proton Collisions at the LHC

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
The effective string tension (κ) in the Schwinger mechanism and the effective temperature (T) in Bose–Einstein statistics are extracted from the transverse momentum (pT) spectra of heavy quarkonia produced in proton‐proton (p + p) collisions at the Large Hadron Collider (LHC).
Peng-Cheng Zhang   +4 more
wiley   +1 more source

Quark and Gluon Form Factors at Three Loops in Perturbative QCD [PDF]

open access: yes, 2009
We compute the quark and gluon form factors at up to three-loop order within massless perturbative Quantum Chromodynamics by studying the photon-quark-anti-quark vertex and the effective vertex of a Higgs boson and two gluons.
IKIZLERLI, NEHIR
core  

Mass Spectra, Radii, and Decay Widths of Toponium

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this work, the radial Schrodinger equation with a nonrelativistic quark potential model (NRQPM) is solved numerically by employing the shooting method. Calculated numerical wave functions (or solutions) are used to compute the masses, root mean square (RMS) radii, E1, M1 radiative transition widths, annihilation decay widths, and branching ratios of
Nosheen Akbar   +3 more
wiley   +1 more source

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