Results 81 to 90 of about 219,826 (264)
Journal of High Energy Physics, 2017 In collinear factorization, light-cone distribution amplitudes (LCDAs) are key ingredients to calculate the production rate of a hadron in high energy exclusive processes.
Wei Wang, Ji Xu, Deshan Yang, Shuai Zhao
doaj +1 more source
Electroweak matrix elements at large Nc: matching quarks to mesons [PDF]
, 2002 I review some progress made on the problem of calculating electroweak processes of mesons at low energy with the use of an approximation to large-Nc QCD which we call the Minimal Hadronic Approximation. An update of results for the matrix elements of the
Peris, S.
core +3 more sources
Holographic like models as a five-dimensional rewriting of large-Nc QCD [PDF]
, 2010 The AdS/QCD models are known to be tightly related with the QCD sum rules in the large-Nc (called also planar) limit. Rewriting the theory of infinite tower of free stable mesons expected in the large-Nc QCD as a five-dimensional theory we scrutinize to ...
Afonin, S. S.
core +6 more sources
Pinning down the large-x gluon with NNLO top-quark pair differential distributions
Journal of High Energy Physics, 2017 Top-quark pair production at the LHC is directly sensitive to the gluon PDF at large x. While total cross-section data is already included in several PDF determinations, differential distributions are not, because the corresponding NNLO calculations have
Michał Czakon +4 more
doaj +1 more source
High-Precision Lattice QCD Confronts Experiment [PDF]
, 2003 We argue that high-precision lattice QCD is now possible, for the first time, because of a new improved staggered quark discretization. We compare a wide variety of nonperturbative calculations in QCD with experiment, and find agreement to within ...
Aubin, C. +25 more
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Power corrections for N-jettiness subtractions at O α s $$ \mathcal{O}\left({\alpha}_s\right) $$
Journal of High Energy Physics, 2018 We continue the study of power corrections for N -jettiness subtractions by analytically computing the complete next-to-leading power corrections at O α s $$ \mathcal{O}\left({\alpha}_s\right) $$ for colorsinglet production.
Markus A. Ebert +5 more
doaj +1 more source
Pomerons and Lattices: a Progress Report [PDF]
, 1996 We report on some attempts to use lattice QCD to investigate topics in strong interactions phenomenology which are usually interpreted in terms of soft Pomeron exchange.Comment: Talk presented at LAT96, 3 pages, Latex, one style file and 2 PostScript ...
Breakstone +7 more
core +2 more sources
J/ψ polarization in the CGC+NRQCD approach
Journal of High Energy Physics, 2018 We compute the J/ψ polarization observables λ θ , λ ϕ , λ θϕ in a Color Glass Condensate (CGC) + nonrelativistic QCQ (NRQCD) formalism that includes contributions from both color singlet and color octet intermediate states.
Yan-Qing Ma +2 more
doaj +1 more source
The pion in the graviton soft-wall model: phenomenological applications
European Physical Journal C: Particles and Fields, 2022 The holographic graviton soft-wall model, introduced to describe the spectrum of scalar and tensor glueballs, is improved to incorporate the realization of chiral-symmetry as in QCD.
Matteo Rinaldi +2 more
doaj +1 more source
Recent progress on QCD inputs for axion phenomenology [PDF]
, 2016 The properties of the QCD axion are strictly related to the dependence of strong interactions on the topological parameter theta. We present a determination of the topological properties of QCD for temperatures up to around 600 MeV, obtained by lattice ...
Bonati, Claudio +7 more
core +4 more sources