Results 61 to 70 of about 10,207 (164)

Shear viscosity in $\phi^4$ theory from an extended ladder resummation

, 2000
We study shear viscosity in weakly coupled hot $\phi^4$ theory using the CTP formalism . We show that the viscosity can be obtained as the integral of a three-point function.
A. Hosoya, D. J. Gross, D. N. Zubarev, E. Braaten, E. Braaten, E. Calzetta, E. Wang, G. Baym, H.-Th. Elze, Hou Defu, Hou Defu, J.-P. Blaizot, K.-C. Chou, L. P. Kadanoff, L. V. Keldysh, M. E. Carrington, M. E. Carrington, M. E. Carrington, N. P. Landsman, P. A. Henning, P. C. Martin, R. D. Pisarski, R. Horsley, R. Kobes, R. L. Kobes, R. L. Kobes, R. R. Parwani, S. Jeon, S. Jeon, S. Jeon   +29 more
core   +3 more sources

Sistemes de resum automàtic de documents

Digithum, 2001
L'aparició de la WWW i d'Internet com a xarxa de telecomunicacions ha canviat el concepte del que es considera informació: no està més ben informat qui més dades té, sinó qui disposa dels millors mitjans per a obtenir exclusivament les que necessita i ...
Salvador Climent Roca
doaj  

Lattice QCD calculation of the pion distribution amplitude with domain wall fermions at physical pion mass

Journal of High Energy Physics
We present a direct lattice QCD calculation of the x-dependence of the pion distribution amplitude (DA), which is performed using the quasi-DA in large momentum effective theory on a domain-wall fermion ensemble at physical quark masses and spacing a ≈ 0.
Ethan Baker, Dennis Bollweg, Peter Boyle, Ian Cloët, Xiang Gao, Swagato Mukherjee, Peter Petreczky, Rui Zhang, Yong Zhao   +8 more
doaj   +1 more source

Not all that is β 0 is β-function: the DGLAP resummation and the running coupling in NLO JIMWLK

Journal of High Energy Physics
We reanalyze the origin of the large transverse logarithms associated with the QCD one loop β function coefficient in the NLO JIMWLK Hamiltonian. We show that some of these terms are not associated with the running of the QCD coupling constant but rather
Alex Kovner, Michael Lublinsky, Vladimir V. Skokov, Zichen Zhao   +3 more
doaj   +1 more source

Temperature Renormalization Group and Resummation

, 1992
The temperature renormalization group equation (TRGE) is compared with a diagrammatic expansion for the $(\phi^4)_4$-theory. It is found that the one-loop TRGE resums the leading powers of temperature for the effective mass.
Elmfors, Per
core   +1 more source

Generalized parton distributions and gravitational form factors at large momentum transfer

Journal of High Energy Physics
Within the soft collinear effective theory (SCET), we derive a factorization theorem which resums Sudakov logarithms (α s ln2( –t)) n to all orders in the quark-in-quark generalized parton distribution (GPD) at large momentum transfer t, and perform a ...
Yoshitaka Hatta, Jakob Schoenleber
doaj   +1 more source

Electroweak vector boson production in joint resummation [PDF]

, 2002
We study the application of the joint resummation to electroweak boson production at hadron colliders. The joint resummation formalism resums both threshold and transverse momentum corrections to the transverse momentum distribution at next-to-leading ...
Kulesza, A., Sterman, G., Vogelsang, W.
core   +3 more sources

Variational structure of Luttinger-Ward formalism and bold diagrammatic expansion for Euclidean lattice field theory. [PDF]

Proc Natl Acad Sci U S A, 2018
Lin L, Lindsey M.
europepmc   +1 more source

Determination of the strong coupling constant α s m Z from measurements of the total cross section for top-antitop-quark production. [PDF]

Eur Phys J C Part Fields, 2017
Klijnsma T, Bethke S, Dissertori G, Salam GP.   +3 more
europepmc   +1 more source

Automated NNLL [Formula: see text] NLO resummation for jet-veto cross sections. [PDF]

Eur Phys J C Part Fields, 2015
Becher T, Frederix R, Neubert M, Rothen L.   +3 more
europepmc   +1 more source