Results 51 to 60 of about 4,122 (216)

Two Micron‐Size Dark Dimensions

open access: yesFortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui   +2 more
wiley   +1 more source

CFTs with $\mathbf{U(m)\times U(n)}$ global symmetry in 3D and the chiral phase transition of QCD

open access: yesSciPost Physics, 2023
Conformal field theories (CFTs) with $U(m)\times U(n)$ global symmetry in $d=3$ dimensions have been studied for years due to their potential relevance to the chiral phase transition of quantum chromodynamics (QCD). In this work such CFTs are analyzed in
Stefanos R. Kousvos, Andreas Stergiou
doaj   +1 more source

Sudakov safety in perturbative QCD

open access: yesPhysical Review D, 2015
Traditional calculations in perturbative quantum chromodynamics (pQCD) are based on an order-by-order expansion in the strong coupling $ _s$. Observables that are calculable in this way are known as "safe". Recently, a class of unsafe observables was discovered that do not have a valid $ _s$ expansion but are nevertheless calculable in pQCD using all-
Larkoski AJ, MARZANI, SIMONE, Thaler J.
openaire   +5 more sources

Maximum Mass Limit of Generalized MIT Compact Star: A Theoretical Study of Thin Shell Dynamics and Gravitational Lensing

open access: yesFortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract In this study, the properties, equilibrium, and stability of compact objects within the framework of teleparallel gravity with the generalized MIT bag model are investigated. By incorporating the modified field equations, the influence of the generalized bag constant on the structure and physical characteristics of quark stars and neutron ...
Sayantan Ghosh   +2 more
wiley   +1 more source

Abelian decomposition and Weyl symmetric effective action of SU(3) QCD

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
We show how to calculate the effective potential of SU(3) QCD which tells that the true minimum is given by the monopole condensation. To do this we make the gauge independent Weyl symmetric Abelian decomposition of the SU(3) QCD which decomposes the ...
Y. M. Cho, Franklin H. Cho
doaj   +1 more source

Reggeon interactions in perturbative QCD [PDF]

open access: yesZeitschrift für Physik C Particles and Fields, 1995
13 pages LATEX, 2 figures using package FEYNMAN, N4 ...
openaire   +2 more sources

Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect

open access: yesAdvanced Physics Research, Volume 4, Issue 7, July 2025.
This review investigates the connection between chiral anomalies and their manifestation in topological materials, using both perturbative methods based on ordinary quantum field theory and conformal field theory (CFT). It emphasizes the role of CFT in momentum space for parity‐odd correlation functions, and their reconstruction by the inclusion of a ...
Claudio Corianò   +4 more
wiley   +1 more source

The hyperfine splitting in QCD mesonic screening masses at asymptotically large temperatures

open access: yesJournal of High Energy Physics
We determine the hyperfine splitting in the QCD flavour non-singlet mesonic screening masses at asymptotically large temperatures. The analytic calculation is carried out in the dimensionally-reduced effective theory where the first non-zero contribution
Marco Cè   +4 more
doaj   +1 more source

Higher-order QCD corrections to hadronic τ decays from Padé approximants

open access: yesJournal of High Energy Physics, 2018
Perturbative QCD corrections to hadronic τ decays and e + e − annihilation into hadrons below charm are obtained from the Adler function, which at present is known in the chiral limit to five-loop accuracy.
Diogo Boito, Pere Masjuan, Fabio Oliani
doaj   +1 more source

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