Results 11 to 20 of about 394,690 (237)
Sudakov Safety in Perturbative QCD [PDF]
, 2015 Traditional calculations in perturbative quantum chromodynamics (pQCD) are based on an order-by-order expansion in the strong coupling $\alpha_s$. Observables that are calculable in this way are known as "safe".
Larkoski, Andrew J. +2 more
core +5 more sources
The perturbative QCD gradient flow to three loops [PDF]
, 2016 A bstractThe gradient flow in QCD is treated perturbatively through next-to-next-to-leading order in the strong coupling constant. The evaluation of the relevant momentum and flow-time integrals is described, including various means of validation.
Robert V. Harlander +3 more
openalex +3 more sources
Perturbative QCD concerning light and heavy flavor in the EPOS4 framework [PDF]
Physical Review C, 2023 We recently introduced new concepts, implemented in EPOS4, which allow to consistently accommodate factorization and saturation in high energy proton-proton and nucleus-nucleus collisions, in a rigorous parallel scattering framework.
K. Werner, B. Guiot
semanticscholar +1 more source
Perturbative QCD and the neutron star equation of state [PDF]
Physical Review C, 2022 We construct a physics-agnostic approach to the neutron star (NS) equation of state (EoS) based on a sound speed model, which connects both low-density information from nuclear theory and high-density constraints from perturbative QCD (pQCD).
R. Somasundaram, I. Tews, J. Margueron
semanticscholar +1 more source
How Perturbative QCD Constrains the Equation of State at Neutron-Star Densities. [PDF]
Physical Review Letters, 2021 We demonstrate in a general and analytic way how high-density information about the equation of state (EOS) of strongly interacting matter obtained using perturbative quantum chromodynamics constrains the same EOS at densities reachable in physical ...
Oleg Komoltsev, A. Kurkela
semanticscholar +1 more source
R2-gravity quark stars from perturbative QCD [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 We investigate the structure of quark stars in the framework of f(R)= R + αR 2 gravity using an equation of state for cold quark matter obtained from perturbative QCD, parametrized only by the renormalization scale.
J. C. Jim'enez +4 more
semanticscholar +1 more source
Extending Precision Perturbative QCD with Track Functions. [PDF]
Physical Review Letters, 2021 Collider experiments often exploit information about the quantum numbers of final state hadrons to maximize their sensitivity, with applications ranging from the use of tracking information (electric charge) for precision jet substructure measurements ...
Yibei Li +4 more
semanticscholar +1 more source
The Curious Concept That Almost Nobody Seemed to Care About at First: Virtual Particles in the Post-War Period. [PDF]
Ber WissAbstract Short‐lived, unobservable, and not subject to the usual rules of conservation of energy and momentum, virtual particles—an integral part of the conceptual framework of quantum field theory (QFT)—exhibit a number of curious characteristics which, in recent decades, have in part fueled important discussions about their ontological status ...
Martinez JP.
europepmc +2 more sources
Heavy quark perturbative QCD fragmentation functions in the presence of hadron mass [PDF]
, 2013 The dominant mechanism to produce hadronic bound states with large transverse momentum is fragmentation, that is the splitting of a high-energy parton into a hadronic state and other partons.
S. Mohammad Moosavi Nejad, A. Armat
openalex +3 more sources
Prompt atmospheric neutrino fluxes: perturbative QCD models and nuclear effects [PDF]
Journal of High Energy Physics, 2016 A bstractWe evaluate the prompt atmospheric neutrino flux at high energies using three different frameworks for calculating the heavy quark production cross section in QCD: NLO perturbative QCD, kT factorization including low-x resummation, and the ...
A. Bhattacharya +7 more
semanticscholar +2 more sources