Results 131 to 140 of about 8,485 (223)

Tales of 1001 gluons

Physics Reports, 2017
These lectures are centred around tree-level scattering amplitudes in pure Yang-Mills theories, the most prominent example is given by the tree-level gluon amplitudes of QCD. I will discuss several ways of computing these amplitudes, illustrating in this way recent developments in perturbative quantum field theory.
openaire   +2 more sources

Factorisation of soft gluons in multiparton scattering

, 2018
We show that soft gluons exchanged between the two colliding protons in multiparton scattering processes can be decoupled, such that their effects are described by the vacuum expectation values of Wilson lines.
Nagar, Riccardo, Diehl, Markus, Markus Diehl, Riccardo Nagar   +3 more
core   +1 more source

Deriving the QCD evolution equations under the Abelian decomposition scheme

European Physical Journal C: Particles and Fields
The Abelian decomposition of QCD reveals two types of gluons: color-neutral “neurons” and color-carrying “chromons”. This classification does not alter the overall properties of QCD, but the investigation of different types of gluon dynamics is necessary.
Yirui Yang, Wei Kou, Xiaopeng Wang, Yanbing Cai, Xurong Chen   +4 more
doaj   +1 more source

Gluon saturation and gluon densities [PDF]

Proceedings of The 33rd International Symposium on Lattice Field Theory — PoS(LATTICE 2015), 2016
openaire   +1 more source

A Perturbative Gluon Condensate?

, 1996
I propose that the properties of QCD perturbation theory should be investigated when the boundary state (`perturbative vacuum') at $t= \pm\infty$ includes gluons. Any boundary state that has an overlap with the true QCD ground state generates a perturbative series that (when summed to all orders) is formally exact.
openaire   +3 more sources

Conformal invariance of the transition vertex 2 #-># 4 gluons

, 1995
We show that the transition vertex: two reggeized gluons #-># four reggeized gluons is invariant under Moebius transformations. This provides an important step in defining a conformally invariant effective field theory for QCD in the Regge limit ...
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany), Bartels, J.M., Lipatov, L.N. (Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany), Wuesthoff, M. (Hamburg Univ. (Germany). 2. Inst. fuer Theoretische Physik), St. Petersburg Inst. of Nuclear Physics, Gatchina (Russian Federation))   +4 more
core  

Higher-derivative relations between scalars and gluons

We extend the covariant color-kinematics duality introduced by Cheung and Mangan to effective field theories. We focus in particular on relations between the effective field theories of gluons only and of gluons coupled to bi-adjoint scalars.
Bonnefoy, Quentin, Roosmale Nepveu, Jasper, Durieux, Gauthier   +2 more
core   +1 more source

Baryon correlations in Pythia. [PDF]

Eur Phys J C Part Fields, 2023
Lönnblad L, Shah H.
europepmc   +1 more source

Scalar gluons and Dirac gluinos at the LHC

, 2009
The hybrid N=1/N=2 supersymmetric model predicts scalar gluons (sgluons) as SUSY partners of the Dirac gluino. Their strikingly distinct phenomenology at the CERN Large Hadron Collider is discussed.The hybrid N=1/N=2 supersymmetric model predicts scalar ...
Popenda, E., Kim, J.M., Kalinowski, J., Choi, S.Y.   +3 more
core  

High-precision calculation of the quark-gluon coupling from lattice QCD. [PDF]

Nature
Dalla Brida M, Höllwieser R, Knechtli F, Korzec T, Ramos A, Sint S, Sommer R.   +6 more
europepmc   +1 more source