Results 111 to 120 of about 1,082 (220)

Renormalization of chiral perturbation theory with spinless matter field in curved spacetime

Journal of High Energy Physics
We generalize chiral perturbation theory with spinless matter fields in the fundamental representation of SU(N) to curved spacetime in the presence of an external gravitational field.
Cheng-Cheng Li, Xiong-Hui Cao, Feng-Kun Guo   +2 more
doaj   +1 more source

Nemegyensúlyi jelenségek vizsgálata térelméleti módszerekkel = Application of field theoretical methods for nonequilibrium systems [PDF]

, 2007
A kutatás célja nemegyensúlyi jelenségek térelméleti megközelítése volt a részecskefizikában és a kondenzált anyagok fizikájában. Eredményei a következő területeken születtek: 1.) QCD effektív elméleteiben (O(N) model, chirális szigma model) a ...
Jakovác, Antal, Újsághy, Orsolya
core  

Identify hadron anomalous couplings at colliders

Journal of High Energy Physics
We investigate the identification of the Wess-Zumino-Witten (WZW) Lagrangian at colliders such as BESIII and the Super-τ-Charm Facility. Our analysis concentrates on the radiative decays of η and η ′ mesons, including η (′) → γγ, η (′) → γℓ + ℓ − , η (′)
Chao-Qiang Geng, Chia-Wei Liu, Yue-Liang Wu   +2 more
doaj   +1 more source

Topics in Effective Field Theory for Lattice QCD

, 2006
In this work, we extend and apply effective field theory techniques to systematically understand a subset of lattice artifacts which pollute the lattice correlation functions for a few processes of physical interest. Where possible, we compare to existing lattice QCD calculations.
openaire   +2 more sources

QCD factorization and effective field theories at the LHC [PDF]

, 2015
Quantum Chromodynamics (QCD) is the main tool for making precise theoretical predictions for proton-proton collisions at the large hadron collider (LHC).
Zeng, Mao
core   +1 more source

Hidden LocaL Symmetry Theory as an Effective Field Theory of QCD

, 2005
In this write-up, I summarize the recent development of the hidden local symmetry (HLS) theory as an effective field theory of QCD. I first explain how the systematic chiral perturbation in the HLS is justified in the large Nc limit of QCD, and summarize the basic concept of the Wilsonian matching, through which some of the bare parameters of the HLS ...
openaire   +2 more sources

QCD factorization and effective field theories at the LHC [PDF]

, 2017
Quantum Chromodynamics (QCD) is the main tool for making precise theoretical predictions for proton-proton collisions at the large hadron collider (LHC).
Zeng, Mao
core  

Spontaneous symmetry breaking and Nambu–Goldstone bosons in quantum many-body systems [PDF]

, 2010
Spontaneous symmetry breaking is a general principle that constitutes the underlying concept of a vast number of physical phenomena ranging from ferromagnetism and superconductivity in condensed matter physics to the Higgs mechanism in the standard model
Brauner, Tomáš
core   +1 more source

Tensor meson pole contributions to the HLbL piece of $${a}_{\mu }^{\text{HLbL}}$$ within RχT

Journal of High Energy Physics
We compute the tensor meson pole contributions to the Hadronic Light-by-Light piece of a μ in the purely hadronic region, using Resonance Chiral Theory. Given the differences between the dispersive and holographic groups determinations and the resulting ...
Emilio J. Estrada, Pablo Roig
doaj   +1 more source

Effective field theories for muonic hydrogen [PDF]

, 2017
Experimental measurements of muonic hydrogen bound states have recently started to take place and provide a powerful setting in which to study the properties of QCD.
Peset Clara, Clara Peset
core   +1 more source