Results 1 to 10 of about 1,273 (119)
Parton Distribution Functions in the CTEQ framework
Dera Natung Government College Research Journal, 2020 Parton distribution functions (PDFs) are important to study the structure of the proton and hence the dynamics of quarks and gluons inside it. We study some of the PDFs from global CTEQ (Coordinated Theoretical-Experimental project on QCD) analysis in a ...
Diptimonta Neog, Akbari Jahan
doaj +1 more source
Graviton trispectrum from gluons
Journal of High Energy Physics, 2023 The tree-level wavefunction coefficient for four gravitons in de Sitter space was recently bootstrapped using the Cosmological Optical Theorem, flat space limit, and Manifestly Local Test [1].
C. Armstrong +3 more
doaj +1 more source
Bose-Einstein Condensation from the QCD Boltzmann Equation
Particles, 2019 We present a novel numerical scheme to solve the QCD Boltzmann equation in the soft scattering approximation, for the quenched limit of QCD. Using this we can readily investigate the evolution of spatially homogeneous systems of gluons distributed ...
Brent Harrison, Andre Peshier
doaj +1 more source
On the Difference between the Radii of Gluons and Quarks
Physics, 2021 In this paper, in the scope of a non-extensive statistical model for the nucleon’s structure function, the volume of the gluons in the nucleons and the relations among the temperature, T, the parameter “q” of Tsallis statistics, and the scattering ...
Luis Augusto Trevisan +2 more
doaj +1 more source
Low-x improved TMD approach to the lepto- and hadroproduction of a heavy-quark pair
Journal of High Energy Physics, 2021 We study the lepto- and hadroproduction of a heavy-quark pair in the ITMD factorization framework for dilute-dense collisions. Due to the presence of a nonzero quark mass and/or nonzero photon virtuality, new contributions appear compared to the cases of
Tolga Altinoluk +2 more
doaj +1 more source
Journal of High Energy Physics, 2021 In theories with a warped extra dimension, composite fermions, as e.g. the right-handed top quark, can be very strongly coupled to Kaluza-Klein (KK) fields.
Rafel Escribano +3 more
doaj +1 more source
Abelian Decomposition and Monopole Condensation in QCD
EPJ Web of Conferences, 2018 We demonstrate the monopole condensation in QCD using the Abelian decomposition. The Abelian decomposition decomposes the gluons to the color neutral binding gluons (the neurons and the monopoles) and the colored valence gluons (the chromons), and shows ...
Cho Y.M.
doaj +1 more source
Studying mass generation for gluons
SciPost Physics Proceedings, 2022 In covariant gauges, the gluonic mass gap in Yang-Mills theory manifests itself in the basic observation that the massless pole in the perturbative gluon propagator disappears in nonperturbative calculations, but the origin of this behavior is not yet ...
Gernot Eichmann, Jan M. Pawlowski
doaj +1 more source
Proton structure, its spin and tensor gluons
EPJ Web of Conferences, 2016 We assume that inside the hadrons there are additional partons - tensorgluons - which carry the same charges as the gluons, but have larger spin. That assumption leads to a possible contribution of polarised tensorgluon density to the spin of the nucleon.
Konitopoulos Spyros, Savvidy George
doaj +1 more source
Physics Letters B, 2018 We study the Callan–Gross ratio R=dσL/dσT in heavy-quark pair leptoproduction, lN→l′QQ¯X, as a probe of linearly polarized gluons inside unpolarized proton, where dσT (dσL) is the differential cross section of the γ⁎N→QQ¯X process initiated by a ...
A.V. Efremov, N.Ya. Ivanov, O.V. Teryaev
doaj +1 more source