Results 31 to 40 of about 2,102 (188)
m‾c and m‾b from MBc and improved estimates of fBc and fBc(2S)
Physics Letters B, 2020 We extract (for the first time) the correlated values of the running masses m‾c and m‾b from MBc using QCD Laplace sum rules (LSR) within stability criteria where perturbative (PT) expressions at N2LO and non-perturbative (NP) gluon condensates at LO are
Stephan Narison
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BASICS OF QCD PERTURBATION THEORY [PDF]
Flavor Physics for the Millennium, 2001 Lectures at the SLAC Summer Institute, August 1996.
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Master integrals for two-loop QCD corrections to quark quasi PDFs
Journal of High Energy Physics, 2020 We compute the master integrals for the two-loop QCD corrections to quark quasi parton distribution functions (PDFs) in the large momentum effective theory (LaMET). With a proper canonical basis, we derive the analytical results for the three families of
Long-Bin Chen, Wei Wang, Ruilin Zhu
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Soft-drop grooming for hadronic event shapes
Journal of High Energy Physics, 2021 Soft-drop grooming of hadron-collision final states has the potential to significantly reduce the impact of non-perturbative corrections, and in particular the underlying-event contribution.
Jeremy Baron +4 more
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Perturbative QCD and tau decay [PDF]
Nuclear Physics B - Proceedings Supplements, 1997 Sufficiently inclusive observables in the decay of the tau lepton can be calculated using the methods of perturbative QCD. These include the asymmetry parameter $A_τ$ that determines that angular distribution of the total hadron momentum in the decay of a polarized tau.
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The two-loop perturbative correction to the (g − 2) μ HLbL at short distances
Journal of High Energy Physics, 2021 The short-distance behaviour of the hadronic light-by-light (HLbL) contribution to (g − 2) μ has recently been studied by means of an operator product expansion in a background electromagnetic field.
Johan Bijnens +3 more
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Connecting the hadron mass scale to the fundamental mass scale of quantum chromodynamics
Physics Letters B, 2015 Establishing an explicit connection between the long distance physics of confinement and the dynamical interactions of quarks and gluons at short distances has been a long-sought goal of quantum chromodynamics.
A. Deur, S.J. Brodsky, G.F. de Teramond
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Particle and Astroparticle Physics, Gravitation and Cosmology: Predictions, Observations and New Projects, 2015 Recent measurements of proton structure, jet production cross sections, the strong coupling constant value, prompt photon production cross sections, charmed hadron production cross sections and the charm and beauty quark mass values, performed by the H1 and ZEUS collaborations at the e±p collider HERA, are presented.
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Non-perturbative to perturbative QCD via the FFBRST
European Physical Journal C: Particles and Fields, 2018 Recently a new type of quadratic gauge was introduced in QCD in which the degrees of freedom are suggestive of a phase of abelian dominance. In its simplest form it is also free of Gribov ambiguity.
Haresh Raval, Bhabani Prasad Mandal
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RECENT DEVELOPMENTS IN PERTURBATIVE QCD [PDF]
Deep Inelastic Scattering DIS 2006, 2007 A brief overview of some recently active topics in perturbative QCD, including: string-inspired recursion techniques at tree level; recursion approaches and automation of standard techniques for 1-loop calculations; the status of NNLO jet calculations; and non-trivial structures that appear in higher-order calculations.
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