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Novel QCD Phenomenology [PDF]

open access: yesGribov-80 Memorial Volume, 2010
I review a number of topics where conventional wisdom in hadron physics has been challenged. For example, hadrons can be produced at large transverse momentum directly within a hard higher-twist QCD subprocess, rather than from jet fragmentation.
S. Brodsky
semanticscholar   +6 more sources

QCD Phenomenology of Static Sources [PDF]

open access: yesFew-Body Systems, 2004
.We discuss the spectrum of open string and point particle excitations in QCD with various source representations. Some general relations are introduced and lattice results presented. In particular, we discuss the short-distance behaviour, relate this to
G. Bali
semanticscholar   +4 more sources

QCD phenomenology of charm production at HERA [PDF]

open access: yesAIP Conference Proceedings, 1997
We compare different schemes for the treatment of heavy quark production in Deep-Inelastic Scattering (DIS). For fully-integrated quantities such as F{sub 2}(x,Q{sup 2}), we advocate the use of the General-Massive Variable-Flavor-Number (GM-VFN) scheme ...
C. Schmidt
semanticscholar   +8 more sources

Quark flavor phenomenology of the QCD axion [PDF]

open access: yesPhysical Review D, 2020
Axion models with generation-dependent Peccei-Quinn charges can lead to flavor-changing neutral currents, thus motivating QCD axion searches at precision flavor experiments.
J. Camalich   +4 more
semanticscholar   +7 more sources

Nonperturbative QCD phenomenology and light quark physics [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2004
Recent progress in modeling QCD for hadron physics through truncated Dyson-Schwinger equations is reviewed. Special emphasis is put upon comparison of dressed quark propagators and the dressed quark-gluon vertex with lattice-QCD results.
P. Tandy
semanticscholar   +4 more sources

QCD Phenomenology and Light-Front Wavefunctions [PDF]

open access: yes, 2001
A natural calculus for describing the bound-state structure of relativistic composite systems in quantum field theory is the light-front Fock expansion which encodes the properties of a hadrons in terms of a set of frame-independent n-particle ...
S. Brodsky
semanticscholar   +5 more sources

The B ¯ $$ \overline{B} $$ → π form factors from QCD and their impact on |V ub | [PDF]

open access: yesJournal of High Energy Physics, 2021
We revisit light-cone sum rules with pion distribution amplitudes to determine the full set of local B ¯ $$ \overline{B} $$ → π form factors. To this end, we determine all duality threshold parameters from a Bayesian fit for the first time.
Domagoj Leljak   +2 more
doaj   +2 more sources

Perspectives and Challenges for QCD Phenomenology [PDF]

open access: yes, 2001
A fundamental understanding of quantum chromodynamics, particularly at the amplitude level, is essential for progress in high energy physics. For example, the measurement and interpretation of the basic parameters of the electroweak theory and CP ...
S. Brodsky
semanticscholar   +5 more sources

Running effects on QCD axion phenomenology [PDF]

open access: yesPhysical Review D, 2023
We study the impact of renormalization group effects on QCD axion phenomenology. Focusing on the DFSZ model, we argue that the relevance of running effects for the axion couplings crucially depends on the scale where the heavier Higgs scalars are ...
Luca Di Luzio   +5 more
semanticscholar   +1 more source

Quark formation and phenomenology in binary neutron-star mergers using V-QCD [PDF]

open access: yesSciPost Physics, 2022
Using full 3+1 dimensional general-relativistic hydrodynamic simulations of equal- and unequal-mass neutron-star binaries with properties that are consistent with those inferred from the inspiral of GW170817, we perform a detailed study of the quark ...
Samuel D. Tootle   +5 more
semanticscholar   +1 more source

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