Results 71 to 80 of about 1,097 (138)

Pinning down the large-x gluon with NNLO top-quark pair differential distributions

open access: yesJournal 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

Intrinsic charm in the nucleon and charm production at large rapidities in collinear, hybrid and k T -factorization approaches

open access: yesJournal of High Energy Physics, 2020
We discuss the role of intrinsic charm (IC) in the nucleon for forward production of c-quark (or c ¯ $$ \overline{c} $$ -antiquark) in proton-proton collisions for low and high energies.
Rafał Maciuła, Antoni Szczurek
doaj   +1 more source

Momentum-space threshold resummation in tW production at the LHC

open access: yesJournal of High Energy Physics, 2019
We calculate the soft-gluon corrections for tW production to all orders. The soft limit is defined in the pair invariant mass or one particle inclusive kinematic schemes.
Chong Sheng Li   +3 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

Dipole evolution: perspectives for collectivity and γ*A collisions

open access: yesJournal 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   +1 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

Higher-twist B-meson distribution amplitudes in HQET

open access: yesJournal of High Energy Physics, 2017
We present a systematic study of higher-twist distribution amplitudes (DAs) of the B-meson which give rise to power-suppressed 1/m B contributions to B-decays in final states with energetic light particles in the framework of QCD factorization.
V. M. Braun, Yao Ji, A. N. Manashov
doaj   +1 more source

Power corrections for N-jettiness subtractions at O α s $$ \mathcal{O}\left({\alpha}_s\right) $$

open access: yesJournal 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

IRC-Safe Graph Autoencoder for Unsupervised Anomaly Detection. [PDF]

open access: yesFront Artif Intell, 2022
Atkinson O   +5 more
europepmc   +1 more source
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