Results 51 to 60 of about 472,208 (268)

Systematics of quark/gluon tagging [PDF]

open access: yes, 2017
A bstractBy measuring the substructure of a jet, one can assign it a “quark” or “gluon” tag. In the eikonal (double-logarithmic) limit, quark/gluon discrimination is determined solely by the color factor of the initiating parton (CF versus CA).
P. Gras   +9 more
semanticscholar   +1 more source

High-Precision Differential Predictions for Top-Quark Pairs at the LHC. [PDF]

open access: yesPhysical Review Letters, 2015
We present the first complete next-to-next-to-leading order (NNLO) QCD predictions for differential distributions in the top-quark pair production process at the LHC. Our results are derived from a fully differential partonic Monte Carlo calculation with
M. Czakon, D. Heymes, A. Mitov
semanticscholar   +1 more source

Linking generalized parton distributions to constituent quark models [PDF]

open access: yes, 2002
The link between the nucleon generalized parton distributions and the non-diagonal one-body density matrix in momentum space is studied. Attention is focussed on the region where quark generalized parton distributions (GPD's) describe emission and ...
B. Pasquini   +49 more
core   +2 more sources

Next-to-Leading-Order QCD Corrections to Higgs Boson Plus Jet Production with Full Top-Quark Mass Dependence.

open access: yesPhysical Review Letters, 2018
We present the next-to-leading-order QCD corrections to the production of a Higgs boson in association with one jet at the LHC including the full top-quark mass dependence. The mass of the bottom quark is neglected.
S. Jones, M. Kerner, G. Luisoni
semanticscholar   +1 more source

Nonperturbative quark, gluon, and meson correlators of unquenched QCD [PDF]

open access: yes, 2017
We present non-perturbative first-principle results for quark-, gluon- and meson $1$PI correlation functions of two-flavour Landau-gauge QCD in the vacuum. These correlation functions carry the full information about the theory.
Anton K. Cyrol   +3 more
semanticscholar   +1 more source

Spin polarization induced by the hydrodynamic gradients

open access: yesJournal of High Energy Physics, 2021
We systematically analyze the effects of the derivatives of the hydrodynamic fields on axial Wigner function that describes the spin polarization vector in phase space.
Shuai Y. F. Liu, Yi Yin
doaj   +1 more source

Masses of doubly heavy-quark baryons in an extended chromomagnetic model [PDF]

open access: yes, 2018
We extend the chromomagnetic model by further considering the effect of color interaction. The effective mass parameters between quark pairs ($m_{qq}$ or $m_{q\bar{q}}$) are introduced to account both the effective quark masses and the color interaction ...
Xin-Zhen Weng, Xiao-Lin Chen, W. Deng
semanticscholar   +1 more source

Quantum and classical dynamics of heavy quarks in a quark-gluon plasma [PDF]

open access: yesNuclear Physics, 2017
A bstractWe derive equations for the time evolution of the reduced density matrix of a collection of heavy quarks and antiquarks immersed in a quark gluon plasma.
M. Escobedo, J. Blaizot
semanticscholar   +1 more source

CP asymmetry in the angular distribution of τ → KS πν τ decays

open access: yesJournal of High Energy Physics, 2020
In this work, we study the C P asymmetry in the angular distribution of τ → K S πν τ decays, taking into account the known C P violation in K 0 − K ¯ 0 $$ {K}^0-{\overline{K}}^0 $$ mixing. It is pointed out for the first time that, once the well-measured
Feng-Zhi Chen   +2 more
doaj   +1 more source

Charm production asymmetries from heavy-quark recombination

open access: yes, 2003
Charm asymmetries in fixed-target hadroproduction experiments are sensitive to power corrections to the QCD factorization theorem for heavy quark production.
Mehen, Thomas
core   +1 more source

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