Results 21 to 30 of about 394,690 (237)

W-Boson Production in Association with a Jet at Next-to-Next-to-Leading Order in Perturbative QCD [PDF]

open access: greenPhysical Review Letters, 2015
We present the complete calculation of W-boson production in association with a jet in hadronic collisions through next-to-next-to-leading order (NNLO) in perturbative QCD. To cancel infrared divergences, we discuss a new subtraction method that exploits
Radja Boughezal   +3 more
openalex   +3 more sources

Quantum kinetic theory of spin polarization of massive quarks in perturbative QCD: Leading log [PDF]

open access: yesPhysical Review D, 2019
We present the quantum kinetic equation for spin polarization of massive quarks in leading log order of perturbative QCD, which describes time evolution of the spin density matrix in momentum space of a massive quark interacting with a background QCD ...
Shiyong Li, Ho-Ung Yee
semanticscholar   +1 more source

Z-Boson Production in Association with a Jet at Next-To-Next-To-Leading Order in Perturbative QCD. [PDF]

open access: yesPhysical Review Letters, 2015
We present the first complete calculation of Z-boson production in association with a jet in hadronic collisions through next-to-next-to-leading order in perturbative QCD.
R. Boughezal   +6 more
semanticscholar   +1 more source

Extending the predictive power of perturbative QCD [PDF]

open access: yesThe European Physical Journal C, 2018
The predictive power of perturbative QCD (pQCD) depends on two important issues: (1) how to eliminate the renormalization scheme-and-scale ambiguities at fixed order, and (2) how to reliably estimate the contributions of unknown higher-order terms using ...
Bo-Lun Du   +3 more
semanticscholar   +1 more source

Quark beam function at next-to-next-to-next-to-leading order in perturbative QCD in the generalized large- Nc approximation [PDF]

open access: yesPhysical Review D, 2019
We present the matching coefficient for the quark beam function at next-to-next-to-next-to-leading order in perturbative QCD in the generalized large Nc-approximation, Nc ∼ Nf ≫ 1.
A. Behring   +4 more
semanticscholar   +1 more source

P -wave contributions to B→ψππ decays in the perturbative QCD approach [PDF]

open access: yesPhysical Review D, 2018
We present the differential branching fractions for the $B\rightarrow \psi \pi\pi$ decays with the charmonia $\psi=J/\psi,\psi(2S)$ in the invariant mass of the $P$-wave pion pairs in the perturbative QCD approach.
Zhou Rui, Ya Li, Hsiang-nan Li
semanticscholar   +1 more source

Soft integrals and soft anomalous dimensions at N3LO and beyond

open access: yesJournal of High Energy Physics, 2022
We calculate soft phase-space and loop master integrals for the computation of color-singlet cross sections through N3LO in perturbative QCD. Our results are functions of homogeneous transcendental weight and include the first nine terms in the expansion
Claude Duhr   +2 more
doaj   +1 more source

Odderon in QCD [PDF]

open access: yes, 2001
A review on how the Odderon idea does appear in QCD is given. In the last years it has been developed a non-perturbative QCD approach based on the stochastic vacuum model and a perturbative one based on resummation techniques in the small x QCD region ...
Vacca, G. P.
core   +2 more sources

The Odderon in QCD with running coupling

open access: yesJournal of High Energy Physics, 2020
Starting from the leading Odderon solution of the three gluon system in perturbative QCD we introduce, as a first step towards the transition to the non-perturbative region, an infrared cutoff and use the running QCD coupling constant.
Jochen Bartels   +2 more
doaj   +1 more source

Conformal window and Landau singularities [PDF]

open access: yes, 2001
A physical characterization of Landau singularities is emphasized, which should trace the lower boundary N_f^* of the conformal window in QCD and supersymmetric QCD.
Grunberg, Georges
core   +2 more sources

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