Results 51 to 60 of about 217,289 (236)
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 We investigate the exclusive semileptonic and rare D⟶π(K) decays within the standard model together with the light‐front quark model (LFQM) constrained by the variational principle for the QCD‐motivated effective Hamiltonian. The form factors are obtained in the q+ = 0 frame and then analytically continue to the physical timelike region.
Ho-Meoyng Choi, Qin Chang
wiley +1 more source
Infrared structure of SU(N) × U(1) gauge theory to three loops
Journal of High Energy Physics, 2020 We study the infrared (IR) structure of SU(N ) × U(1) (QCD × QED) gauge theory with n f quarks and n l leptons within the framework of perturbation theory.
A.H. Ajjath +2 more
doaj +1 more source
The q T and ∆ϕ spectra in W and Z production at the LHC at N3LL′+N2LO
Journal of High Energy Physics, 2021 The production of weak gauge bosons, W ± and Z, are at the core of the LHC precision measurement program. Their transverse momentum spectra as well as their pairwise ratios are key theoretical inputs to many high-precision analyses, ranging from the W ...
Wan-Li Ju, Marek Schönherr
doaj +1 more source
Nuclear p ⊥-broadening of an energetic parton pair
Journal of High Energy Physics, 2018 We revisit the transverse momentum broadening of a fast parton pair crossing a nuclear medium, putting emphasis on the pair global color state, for any number of colors N and within the eikonal limit for parton propagation and the Gaussian approximation ...
Florian Cougoulic, Stéphane Peigné
doaj +1 more source
Journal of High Energy Physics, 2020 Some short-distance properties of the fourth-rank hadronic vacuum polarization tensor are re-examined. Their consequences are critically discussed in the context of the hadronic light-by-light scattering contribution to the anomalous magnetic moment of ...
Marc Knecht
doaj +1 more source
ZZ production at nNNLO+PS with MiNNLOPS
Journal of High Energy Physics, 2022 We consider ZZ production in hadronic collisions and present state-of-the-art predictions in QCD perturbation theory matched to parton showers. Next-to-next-to-leading order corrections to the quark-initiated channel are combined with parton showers ...
Luca Buonocore +5 more
doaj +1 more source
Randomness on the Lattice [PDF]
, 2000 In this lecture we review recent lattice QCD studies of the statistical properties of the eigenvalues of the QCD Dirac operator. We find that the fluctuations of the smallest Dirac eigenvalues are described by chiral Random Matrix Theories with the ...
Akemann +76 more
core +3 more sources
Journal of High Energy Physics, 2021 We discuss deep learning inference for the neutron star equation of state (EoS) using the real observational data of the mass and the radius. We make a quantitative comparison between the conventional polynomial regression and the neural network approach
Yuki Fujimoto +2 more
doaj +1 more source
Large Lorentz Scalar and Vector Potentials in Nuclei [PDF]
, 1999 In nonrelativistic models of nuclei, the underlying mass scales of low-energy quantum chromodynamics (QCD) are largely hidden. In contrast, the covariant formulations used in relativistic phenomenology manifest the QCD scales in nuclei through large ...
Furnstahl, R. J., Serot, Brian D.
core +2 more sources
Some remarks on anthropic approaches to the strong CP problem
Journal of High Energy Physics, 2018 The peculiar value of θ is a challenge to the notion of an anthropic landscape. We briefly review the possibility that a suitable axion might arise from an anthropic requirement of dark matter.
Michael Dine +3 more
doaj +1 more source