Results 61 to 70 of about 219,826 (264)

Current‐Component Independent Transition Form Factors for Semileptonic and Rare D⟶π(K) Decays in the Light‐Front Quark Model

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

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

On some short-distance properties of the fourth-rank hadronic vacuum polarization tensor and the anomalous magnetic moment of the muon

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, Gabriël Koole, Daniele Lombardi, Luca Rottoli, Marius Wiesemann, Giulia Zanderighi   +5 more
doaj   +1 more source

Phenomenology of Λb → Λcτν¯τ using lattice QCD calculations [PDF]

, 2017
National Science Foundation [PHY-1414345, OCI-1053575]; RHIC Physics Fellow Program of the RIKEN BNL Research Center; U.S. Department of Energy [DE-AC02-05CH11231]
A. Datta, Saeed Kamali, S. Meinel, A. Rashed   +3 more
semanticscholar   +2 more sources

Extensive studies of the neutron star equation of state from the deep learning inference with the observational data augmentation

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, Kenji Fukushima, Koichi Murase   +2 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, Akemann, Akemann, Banks, Berbenni-Bitsch, Berbenni-Bitsch, Berbenni-Bitsch, Berbenni-Bitsch, Berbenni-Bitsch, Berbenni-Bitsch, Berg, Berg, Breźin, Brézin, Chandrasekharan, Damgaard, Damgaard, Damgaard, Damgaard, Damgaard, Damgaard, Damgaard, Damgaard, Damgaard, DeTar, Edwards, Edwards, Efetov, Efetov, Farchioni, Farchioni, Farchioni, Forrester, Fyodorov, Fyodorov, Fyodorov, Garcia-Garcia, Gasser, Guhr, Guhr, Göckeler, Halasz, Halasz, Hernandez, J.J.M. Verbaarschot, Jackson, Jackson, Jackson, Janik, Jurkiewicz, Jurkiewicz, Kanzieper, Kanzieper, Kogut, Leutwyler, Ma, Ma, Markum, Nagao, Nishigaki, Osborn, Osborn, Osborn, Pauli, Pauli, Pullirsch, Schnabel, Shuryak, Stephanov, Verbaarschot, Verbaarschot, Verbaarschot, Verbaarschot, Verbaarschot, Verbaarschot, Wettig, Wilke   +76 more
core   +3 more sources

QCD phenomenology of static sources and gluonic excitations at short distances [PDF]

, 2003
New lattice data for the ${\ensuremath{\Pi}}_{u}$ and ${\ensuremath{\Sigma}}_{u}^{\ensuremath{-}}$ potentials at short distances are presented. We compare perturbation theory to the lower static hybrid potentials and find good agreement at short ...
G. Bali, A. Pineda
semanticscholar   +1 more source

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, Laurel Stephenson Haskins, Lorenzo Ubaldi, Di Xu   +3 more
doaj   +1 more source

Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD

Journal of High Energy Physics, 2021
We report on the first fully differential calculation of the next-to-next-to-leading-order (NNLO) QCD radiative corrections to the production of bottom-quark pairs at hadron colliders.
Stefano Catani, Simone Devoto, Massimiliano Grazzini, Stefan Kallweit, Javier Mazzitelli   +4 more
doaj   +1 more source