Results 91 to 100 of about 531,410 (302)
Can perturbative QCD predict a substantial part of diffractive LHC/SSC physics? [PDF]
, 1992 We examine a model of hadronic diffractive scattering which interpolates between perturbative QCD and non-perturbative fits. We restrict the perturbative QCD resummation to the large transverse momentum region, and use a simple Regge-pole parametrization
Amaldi +28 more
core +1 more source
S-wave ground state charmonium decays of $B_c$ mesons in the perturbative QCD approach [PDF]
, 2014 We make a systematic investigation on the two-body nonleptonic decays $B_c\rightarrow J/\Psi(\eta_c),M$ by employing the perturbative QCD approach based on $k_T$ factorization, where $M$ is a light pseudoscalar or vector or a heavy charmed meson.
Zhou Rui, Z. Zou
semanticscholar +1 more source
Visible GeV ALP from TeV Vector‐Like Leptons
Fortschritte der Physik, Volume 73, Issue 3, March 2025.Abstract A model is presented where a GeV axion‐like‐particle (ALP) is predicted in a large portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry‐breaking terms in an exotic leptonic sector. The latter provides a solution to the muon g−2$g-2$ anomaly, within the framework of the Linear Seesaw neutrino mechanism.
Arturo de Giorgi +2 more
wiley +1 more source
Particle and Astroparticle Physics, Gravitation and Cosmology: Predictions, Observations and New Projects, 2015 Recent measurements of proton structure, jet production cross sections, the strong coupling constant value, prompt photon production cross sections, charmed hadron production cross sections and the charm and beauty quark mass values, performed by the H1 and ZEUS collaborations at the e±p collider HERA, are presented.
openaire +4 more sources
Conformal mappings in perturbative QCD [PDF]
The European Physical Journal Special Topics, 2021 version accepted for publication in EPJST.
openaire +3 more sources
Results and techniques for higher order calculations within the gradient-flow formalism
Journal of High Energy Physics, 2019 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
Static quark anti-quark free energy and the running coupling at finite temperature
, 2004 We analyze the free energy of a static quark anti-quark pair in quenched QCD at short and large distances. From this we deduce running couplings, g^2(r,T), and determine the length scale that separates at high temperature the short distance perturbative ...
B. Beinlich +5 more
core +1 more source
Where do perturbative and non-perturbative QCD meet? [PDF]
, 2001 We computed the static potential and Wilson loops to $O(\alpha^2)$ in perturbation theory for different lattice quark and gluon actions. In general, we find short distance lattice data to be well described by ``boosted perturbation theory''.
Bali +5 more
core +3 more sources
Direct CP asymmetries of three-body $B$ decays in perturbative QCD [PDF]
, 2014 We propose a theoretical framework for analyzing three-body hadronic B meson decays based on the perturbative QCD approach. The crucial nonperturbative input is a two-hadron distribution amplitude for final states, whose timelike form factor and ...
Wen-Fei Wang +3 more
semanticscholar +1 more source
Higgs boson production in association with a jet at next-to-next-to-leading order in perturbative QCD [PDF]
Journal of High Energy Physics, 2013 We report on a calculation of the cross-section for Higgs boson production in gluon fusion in association with a hadronic jet at next-to-next-to-leading order (NNLO) in perturbative QCD. The computational technique is discussed in detail.
R. Boughezal +4 more
semanticscholar +1 more source