Results 51 to 60 of about 140,588 (214)
T-even transverse momentum dependent gluon fragmentation functions in a spectator model
We present a model calculation of transverse momentum dependent (TMD) gluon fragmentation functions in both spin-1/2 and spin-0 hadrons. Our approach is based on the postulation that a time-like off-shell gluon can fragment into a hadron and a single ...
Xiupeng Xie, Zhun Lu
doaj +1 more source
Two-Loop Gluon to Gluon-Gluon Splitting Amplitudes in QCD [PDF]
Splitting amplitudes are universal functions governing the collinear behavior of scattering amplitudes for massless particles. We compute the two-loop g {yields} gg splitting amplitudes in QCD, N = 1, and N = 4 super-Yang-Mills theories, which describe the limits of two-loop n-point amplitudes where two gluon momenta become parallel.
openaire +1 more source
7 pages, submitted to Acta Physica Hungarica, replaced because extra linefeeds caused by the mailer made the LaTeX file illegible.
openaire +2 more sources
Gluon-gluon interactions in the bag model [PDF]
An effective spin-dependent interaction Hamiltonian for low-lying gluon modes is calculated to scrO(..cap alpha../sub s/) in the MIT bag model. We give expressions for the energy shifts of low-lying glueballs.
C. E. Carlson +2 more
openaire +1 more source
A set of particle representations, familiar from the Standard Model, collectively form a superalgebra. Those representations mirroring the behaviour of the Standard Model's gauge bosons, and three generations of fermions, are each included in this algebra, with exception only to those representations involving the top quark.
N. Furey
wiley +1 more source
The gluon condensation in hadron collisions
Gluons may converge to a stable state at a critical momentum in hadrons. This gluon condensation is predicted by a nonlinear QCD evolution equation. We review the understanding of the gluon condensation and present a clear physical picture that produces ...
Wei Zhu +3 more
doaj +1 more source
Quark ACM with topologically generated gluon mass
We investigate the effect of a small, gauge-invariant mass of the gluon on the anomalous chromomagnetic moment of quarks (ACM) by perturbative calculations at one loop level.
Choudhury, Ishita Dutta +1 more
core +1 more source
Infrared Behaviour of Propagators and Vertices [PDF]
We elucidate constraints imposed by confinement and dynamical chiral symmetry breaking on the infrared behaviour of the dressed-quark and -gluon propagators, and dressed-quark-gluon vertex.
Atkinson +15 more
core +2 more sources
Abstract We calculate corrections to the electroproduction cross section of J/ψ at HERA energies arising from gluons in the photon interacting with gluons in the proton. These turn out to be sizable and may be isolated by suitable phase space cuts. Implications for the extraction of the gluon density of the proton at HERA are also discussed.
openaire +1 more source
Radiation Transport Through the Martian Atmosphere as a Function of the Zenith Angle
Abstract The topographic influence of the radiation environment on the Martian surface radiation is crucial for future human exploration. Topographic maps help assess radiation flux variations, aiding in hazard evaluation. Creating a global radiation map requires accounting for seasonally varying atmospheric density, heliospheric modulation, and ...
Salman Khaksari +12 more
wiley +1 more source

