Results 21 to 30 of about 8,485 (223)
We discuss the current state of what is known non-perturbatively about the gluon propagator in QCD, with emphasis on the information coming from lattice simulations. We review the specification of the lattice Landau gauge and the procedure for calculating the gluon propagator on the lattice.
openaire +2 more sources
The quark - gluon medium [PDF]
Final version, to appear in Physics ...
Dremin, I. M., Leonidov, A. V.
openaire +2 more sources
Neutralino annihilation into gluons [PDF]
We present a complete calculation of the cross section for neutralino annihilation into the two-gluon final state. This channel can be quite important for the phenomenology of neutralino annihilation due to the well-known helicity suppression of neutralino annihilation into light quarks and leptons.
Drees, M. +3 more
openaire +3 more sources
The Discovery of the Gluon [PDF]
Soon after the postulation of quarks, it was suggested that they interact via gluons, but direct experimental evidence was lacking for over a decade. In 1976, Mary Gaillard, Graham Ross and the author suggested searching for the gluon via 3-jet events due to gluon bremsstrahlung in e+ e- collisions.
openaire +6 more sources
Double-soft behavior for scalars and gluons from string theory [PDF]
: We compute the leading double-soft behavior for gluons and for the scalars obtained by dimensional reduction of a higher dimensional pure gauge theory, from the scattering amplitudes of gluons and scalars living in the world-volume of a Dp-brane of the
Matin Mojaza +8 more
core +1 more source
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
Studying mass generation for gluons
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
Gluon condensates and effective gluon mass
Lattice simulations along with studies in continuum QCD indicate that non-perturbative quantum fluctuations lead to an infrared regularisation of the gluon propagator in covariant gauges in the form of an effective mass-like behaviour. In the present work we propose an analytic understanding of this phenomenon in terms of gluon condensation through a ...
Horak, Jan +5 more
openaire +4 more sources
Low-x improved TMD approach to the lepto- and hadroproduction of a heavy-quark pair
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
Abelian Decomposition and Monopole Condensation in QCD
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

