Results 61 to 70 of about 115,526 (231)
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley +1 more source
Reggeon interactions in perturbative QCD [PDF]
13 pages LATEX, 2 figures using package FEYNMAN, N4 ...
openaire +2 more sources
Results and techniques for higher order calculations within the gradient-flow formalism
We describe in detail the implementation of a systematic perturbative approach to observables in the QCD gradient-flow formalism. This includes a collection of all relevant Feynman rules of the five-dimensional field theory and the composite operators ...
Johannes Artz +4 more
doaj +1 more source
An Overview of Scale Invariance in Proton Structure With Holographic Insights
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
Non-leptonic B-decays in and beyond QCD factorisation [PDF]
This thesis examines the non-leptonic B-decays within QCD factorization and beyond, to challenge the assumptions and limitations of the method. We analyse the treatment of the distribution amplitudes of light mesons and present a new model described by ...
Talbot, Angelique N. +1 more
core
The Purely Leptonic and Semileptonic Decays of Ds∗ Meson
With the potential prospects of the Ds∗ at high‐luminosity heavy‐flavor experiments in the future, we investigated the CKM‐favored and tree‐dominated leptonic Ds∗⟶ℓν¯ℓ,ℓ=e,μ,τ and semileptonic Ds∗⟶Mℓ′ν¯ℓ′ M=ϕ,η′,K and ℓ′=e,μ weak decays in the standard model (SM).
Xiao-Lin Wang +3 more
wiley +1 more source
Energy momentum tensor correlators in Improved Holographic QCD [PDF]
Krssak M. Energy momentum tensor correlators in Improved Holographic QCD. Bielefeld: Bielefeld University; 2013.In this thesis, we study the physics of the quark gluon plasma (QGP) using holographic methods borrowed from string theory.
Krssak, Martin ; https://orcid.org/ +1 more
core
Handbook of perturbative QCD [PDF]
The elements, theoretical basis, and experimental status of perturbative quantum chromodynamics are presented. Relevant field-theoretic methods are introduced at a nonspecialist level, along with a review of the basic ideas and methods of the parton model.
George Sterman +16 more
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On the power divergence in quasi gluon distribution function
Recent perturbative calculation of quasi gluon distribution function at one-loop level shows the existence of extra linear ultraviolet divergences in the cut-off scheme.
Wei Wang, Shuai Zhao
doaj +1 more source
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

