Results 91 to 100 of about 166,360,743 (213)
Effective Field Theory for Diffractive QCD Processes
, 1993 An effective field theory describing the QCD diffraction scattering is constructed. The constituent quarks interacting with multiperi- pheral gluons and Goldstone bosons are described by impact- parameter two-dimensional sigma models for the color and the flavor degrees of freedom.
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Non-leptonic B-decays in and beyond QCD factorisation [PDF]
, 2005 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
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, 2020 This paper represents a pedagogical introduction to low-energy effective field theories. In some of them, heavy particles are “integrated out” (a typical example—the Heisenberg–Euler EFT); in some, heavy particles remain but some ...
Andrey Grozin
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Renormalization of chiral perturbation theory with spinless matter field in curved spacetime
Journal of High Energy PhysicsWe 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 +2 more
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Identify hadron anomalous couplings at colliders
Journal of High Energy PhysicsWe 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 +2 more
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Charmonium correlation and spectral functions in quenched lattice QCD at finite temperature [PDF]
, 2010 Ding H. Charmonium correlation and spectral functions in quenched lattice QCD at finite temperature. Bielefeld (Germany): Bielefeld University; 2010.In this thesis, we have investigated the properties of charmonium states at finite temperature in ...
Ding, Hengtong
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Further study on excited Ξ QQ ′ $$ {\Xi}_{QQ^{\prime }} $$ via photoproduction at CEPC and FCC-ee
Journal of High Energy PhysicsWithin the framework of NRQCD, the photoproduction of doubly heavy baryons Ξ cc , Ξ bc , Ξ bb and their P-wave excited states has been systematically investigated. The production mechanism is that a color anti-triplet or sextuplet diquark ⟨QQ ′⟩ is first
Hong-Hao Ma, Juan-Juan Niu, Lei Guo
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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.
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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 ...
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Energy momentum tensor correlators in Improved Holographic QCD [PDF]
, 2013 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
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