Results 61 to 70 of about 41,470 (209)

On next-to-leading power threshold corrections in Drell-Yan production at N3LO

Journal of High Energy Physics, 2018
The cross-section for Drell-Yan production of a vector boson has been previously calculated at next-to-next-to-leading order, supplemented by enhanced logarithmic terms associated with the threshold region.
N. Bahjat-Abbas, J. Sinninghe Damsté, L. Vernazza, C. D. White   +3 more
doaj   +1 more source

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

Dipole evolution: perspectives for collectivity and γ*A collisions

Journal of High Energy Physics, 2019
The transverse, spatial structure of protons is an area revealing fundamental properties of matter, and provides key input for deeper understanding of emerging collective phenomena in high energy collisions of protons, as well as collisions of heavy ions.
Christian Bierlich, Christine O. Rasmussen   +1 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

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

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., Bernard, C., Burch, T., Davies, C. T. H., DeTar, C., Di Pierro, M., El-Khadra, A., Follana, E., Gottlieb, Steven, Gray, A., Gregory, E. B., Heller, U. M., Hetrick, J. E., Kronfeld, A. S., Lepage, G. P., Mackenzie, P. B., Mason, Q., Menscher, D., Nobes, M., Osborn, J., Shigemitsu, J., Simone, J., Sugar, R., Toussaint, D., Trottier, H. D., Wingate, M.   +25 more
core   +3 more sources

Production asymmetry of ντ neutrinos and ν ¯ τ $$ {\overline{\nu}}_{\tau } $$ antineutrinos from a fixed target experiment SHiP

Journal of High Energy Physics, 2020
We discuss how to calculate cross sections as well as rapidity, transverse momentum and energy distributions of ντ and ν ¯ τ $$ {\overline{\nu}}_{\tau } $$ produced from the direct D s ± → ν τ / ν ¯ τ $$ {D}_s^{\pm}\to {\nu}_{\tau }/{\overline{\nu}}_ ...
Rafał Maciuła, Antoni Szczurek, Jakub Zaremba, Izabela Babiarz   +3 more
doaj   +1 more source

Inclusive production of heavy quarkonia in pNRQCD

Journal of High Energy Physics, 2021
We develop a formalism for computing inclusive production cross sections of heavy quarkonia based on the nonrelativistic QCD and the potential nonrelativistic QCD effective field theories.
Nora Brambilla, Hee Sok Chung, Antonio Vairo   +2 more
doaj   +1 more source

Transverse momentum dependent parton densities in a proton from the generalized DAS approach

Journal of High Energy Physics, 2020
We use the Bessel-inspired behavior of parton densities at small Bjorken x values, obtained in the case of the flat initial conditions for DGLAP evolution equations in the double scaling QCD approximation (DAS), to evaluate the transverse momentum ...
A. V. Kotikov, A. V. Lipatov, B. G. Shaikhatdenov, P. Zhang   +3 more
doaj   +1 more source

Pentagon integrals to arbitrary order in the dimensional regulator

Journal of High Energy Physics, 2021
We analytically calculate one-loop five-point Master Integrals, pentagon integrals, with up to one off-shell leg to arbitrary order in the dimensional regulator in d = 4−2𝜖 space-time dimensions.
Nikolaos Syrrakos
doaj   +1 more source