Results 51 to 60 of about 394,690 (237)
Effective locality and gauge invariance
EPJ Web of Conferences, 2018 A few years ago, based on standard functional manipulations, an unexpected property was proven to be satisfied by the fermionic Green's functions of QCD, and dubbed effective locality.
Grandou T.
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MS renormalization of S-wave quarkonium wavefunctions at the origin
Journal of High Energy Physics, 2020 We compute S-wave quarkonium wavefunctions at the origin in the MS ¯ $$ \overline{\mathrm{MS}} $$ scheme based on nonrelativistic effective field theories.
Hee Sok Chung
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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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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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High energy amplitude as an admixture of "soft" and "hard" Pomerons
, 2003 In this paper an attempt is made to find an interface of the perturbative BFKL Pomeron with the non-perturbative Pomeron originating from non-perturbative QCD phenomena such as QCD instantons and/or scale anomaly.
Armesto +53 more
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Drell-Yan lepton angular distributions in perturbative QCD [PDF]
, 2016 We present a comprehensive comparison of the available experimental data for the Drell-Yan lepton angular coefficients $\ensuremath{\lambda}$ and $\ensuremath{\nu}$ to calculations at leading and next-to-leading order of perturbative QCD.
Martin Lambertsen, W. Vogelsang
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The Strong Coupling Constant from Hadron Structure Phenomenology
, 2012 We present recent developments on the role of the running coupling constant at the intersection of perturbative and nonperturbative QCD. A number of experiments show a smooth transition from small to large scales given by the four-momentum transfer in ...
Courtoy, A., Liuti, Simonetta
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Physics Letters B, 2023 While perturbative QCD is sufficient for understanding the color, mass and energy dependences of parton energy loss and jet quenching at large transverse momentum in heavy-ion collisions, a simultaneous description of heavy flavor nuclear modification ...
Wen-Jing Xing +2 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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Setting the renormalization scale in perturbative QCD : Comparisons of the principle of maximum conformality with the sequential extended Brodsky-Lepage-Mackenzie approach [PDF]
, 2015 A key problem in making precise perturbative QCD (pQCD) predictions is how to set the renormalization scale of the running coupling unambiguously at each finite order.
Hong-Hao Ma +4 more
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