Results 111 to 120 of about 32,795 (203)

Inclusive distributions near kinematic thresholds. [PDF]

, 2006
The main challenge in computing inclusive cross sections and decay spectra in QCD is posed by kinematic thresholds. The threshold region is characterized by stringent phase–space constraints that are reflected in large perturbative corrections due to ...
Gardi, Einan
core   +1 more source

Phenomenology of IR-renormalons in inclusive processes

, 1997
We have compared the existing experimental data on the leading power corrections to the structure functions $F_2(x,Q^2), F_3(x,Q^2)$, and $F_L(x,Q^2)$ with the IR-renormalon model predictions for higher-twist contributions.
Mankiewicz, L., Maul, M., Schäfer, A., Stein, E.   +3 more
core   +1 more source

Nuclear Matter Properties of the Modified Quark Meson Coupling Model

, 1997
We explore in more detail the modified quark meson coupling (MQMC) model in nuclear matter. Based on previous studies two different functional forms for the density dependence of the bag constant are discussed.
Adami, Aguirre, Alkofer, Arneodo, Asakawa, B.K. Jennings, Blunden, Bodmer, Boguta, Brown, Brown, Brown, Ebert, Fleck, Furnstahl, Furnstahl, Furnstahl, Furnstahl, Guichon, Guichon, Guichon, H. Müller, Jin, Jin, Li, Lutz, Müller, Nambu, Nambu, Reinhard, Reinhard, Saito, Saito, Saito, Saito, Saito, Saito, Saito, Schechter, Sharma, Song, Soyeur, Thomas, Walecka   +43 more
core   +2 more sources

Progress in the Determination of the Partonic Structure of the Proton

, 2013
We review the current state of the art in the determination of the parton substructure of the nucleon, as expressed in terms of parton distribution functions (PDFs), and probed in high-energy lepton-hadron and hadron-hadron collisions, and we assess ...
Forte, Stefano, Watt, Graeme
core   +1 more source

Pre-equilibrium photons from the early stages of heavy-ion collisions

Journal of High Energy Physics
We use QCD kinetic theory to compute photon production in the chemically equilibrating Quark-Gluon Plasma created in the early stages of high-energy heavy-ion collisions.
Oscar Garcia-Montero, Aleksas Mazeliauskas, Philip Plaschke, Sören Schlichting   +3 more
doaj   +1 more source

An N-independent tensor decomposition for SU(N)

Journal of High Energy Physics
To facilitate a simultaneous treatment of an arbitrary number of colors in representation theory-based descriptions of QCD color structure, we derive an N-independent reduction of SU(N) tensor products.
Stefan Keppeler, Malin Sjodahl, Bernanda Telalovic   +2 more
doaj   +1 more source

Probing transverse momentum dependent structures with azimuthal dependence of energy correlators

Journal of High Energy Physics
We study the azimuthal angle dependence of the energy-energy correlators $$\langle \mathcal{E}\left({\widehat{n}}_{1}\right)\mathcal{E}\left({\widehat{n}}_{2}\right)\rangle $$ in the back-to-back region for e + e − annihilation and deep inelastic ...
Zhong-Bo Kang, Kyle Lee, Ding Yu Shao, Fanyi Zhao   +3 more
doaj   +1 more source

Simplifying QCD event generation with chirality flow, reference vectors and spin directions

Journal of High Energy Physics
The chirality-flow formalism, combined with good choices of gauge reference vectors, simplifies tree-level calculations to the extent that it is often possible to write down amplitudes corresponding to Feynman diagrams immediately.
Emil Boman, Andrew Lifson, Malin Sjodahl, Adam Warnerbring, Zenny Wettersten   +4 more
doaj   +1 more source

Tetraquarks in the Born-Oppenheimer approximation

Journal of High Energy Physics
The conventional loosely bound molecule interpretation of the X(3872) is not compatible with the recent LHCb experimental measurement of the ratio of branching fractions R $$ \mathcal{R} $$ = Br(X → ψ′γ)/Br(X → ψγ). We systematically determine the entire
D. Germani, B. Grinstein, A. D. Polosa
doaj   +1 more source

Analytical insights on hadronic top quark polarimetry

Journal of High Energy Physics
Top quark polarization provides an important tool for studying its production mechanisms, spin correlations, top quark properties, and new physics searches.
Zhongtian Dong, Dorival Gonçalves, Kyoungchul Kong, Andrew J. Larkoski, Alberto Navarro   +4 more
doaj   +1 more source