Results 41 to 50 of about 115,526 (231)

Soft-drop grooming for hadronic event shapes

open access: yesJournal 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
doaj   +1 more source

PERTURBATIVE QCD AT HERA

open access: yesParticle 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.
openaire   +3 more sources

ON PERTURBATIVE QCD OF HARD AND SOFT PROCESSES [PDF]

open access: yesModern Physics Letters A, 2009
We discuss some problems concerning the application of perturbative QCD to high energy processes. In particular for hard processes, we analyze higher order and higher twist corrections. It is argued that these effects are of great importance for understanding the behaviour of pion electromagnetic form factor at moderately large momentum transfers. For
Efremov, A. V., Radyushkin, A. V.
openaire   +3 more sources

The two-loop perturbative correction to the (g − 2) μ HLbL at short distances

open access: yesJournal 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
doaj   +1 more source

Generalized Beth–Uhlenbeck Entropy Formula From the Φ‐Derivable Approach

open access: yesContributions to Plasma Physics, Volume 66, Issue 7-8, September 2026.
ABSTRACT We derive a generalized Beth–Uhlenbeck formula for the entropy of a dense fermion system with strong two‐particle correlations, including scattering states and bound states. We work within the Φ‐derivable approach to the thermodynamic potential.
David Blaschke, Gerd Röpke, Gordon Baym
wiley   +1 more source

RECENT DEVELOPMENTS IN PERTURBATIVE QCD [PDF]

open access: yesDeep 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.
openaire   +3 more sources

Connecting the hadron mass scale to the fundamental mass scale of quantum chromodynamics

open access: yesPhysics 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
doaj   +1 more source

Master integrals for two-loop QCD corrections to quark quasi PDFs

open access: yesJournal 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
doaj   +1 more source

The Gamma Factory: A New Experimental Paradigm for the Post‐HL‐LHC Era

open access: yesAnnalen der Physik, Volume 538, Issue 8, August 2026.
ABSTRACT The Gamma Factory (GF) proposal is motivated by the recognition of a largely untapped potential of the CERN accelerator complex to enable a new research program at the intersection of particle, nuclear, atomic, fundamental, and applied physics. These fields could benefit from novel experimental tools made possible by a future GF facility.
Mieczyslaw Witold Krasny
wiley   +1 more source

Infrared behaviour and renormalization scheme invariance of QCD observables [PDF]

open access: yes, 2006
In this thesis we study the infrared (IR) behaviour of QCD observables, and solutions to the problem of renormalization scheme dependence. We investigate the IR behaviour of all-orders leading-b renormalon resummations for certain Euclidean observables ...
Brooks, Paul M, Brooks, Paul M.
core  

Home - About - Disclaimer - Privacy