Results 1 to 10 of about 19,270 (65)

Thermodynamics of the QCD plasma and the large-N limit [PDF]

, 2009
The equilibrium thermodynamic properties of the SU(N) plasma at finite temperature are studied non-perturbatively in the large-N limit, via lattice simulations.
C. E. DeTar, J. M. Maldacena, M. Laine, M. Teper, Marco Panero   +4 more
core   +4 more sources

Quantum chromodynamics with advanced computing [PDF]

, 2008
We survey results in lattice quantum chromodynamics from groups in the USQCD Collaboration. The main focus is on physics, but many aspects of the discussion are aimed at an audience of computational physicists.Comment: 17 pp.
, , , A S Kronfeld, Alcaraz J (LEP), Beane S R, Becher T, Bernard C (Fermilab Lattice, Bernard C (MILC), Catterall S, Catterall S, Della Morte M, Detar C E (ILDG), Detmold W (NPLQCD), Dixon L J, Eisenstein B I (CLEO), Fodor Z, Giedt J, Glimm J, Hägler P, Jüttner A, Kaplan D B, Kinoshita T, Laiho J (Fermilab Lattice, Lepage G P, Lin H W, McNeile C, Schmidt C, Schwinger J (ed), Van de Water R S (USQCD), Yao W M   +30 more
core   +4 more sources

Theoretical progress in describing the B-meson lifetimes [PDF]

, 2001
The present status of the theoretical estimates of the difference between the widths of the neutral Bs-mesons and of the B-meson lifetime ratios is reviewed. In particular, the lattice results for the matrix elements of the relevant (delta B=2)-operators
Becirevic, Damir
core   +2 more sources

Non-perturbative quark mass renormalisation and running in $N_f=3$ QCD [PDF]

, 2018
We determine from first principles the quark mass anomalous dimension in Nf=3 QCD between the electroweak and hadronic scales. This allows for a fully non-perturbative connection of the perturbative and non-perturbative regimes of the Standard Model in ...
Campos, Isabel, Fritzsch, Patrick, Pena, Carlos, Preti, David, Ramos, Alberto, Vladikas, Anastassios   +5 more
core   +1 more source

$B\to\pi\ell\ell$ form factors for new-physics searches from lattice QCD [PDF]

, 2015
The rare decay $B\to\pi\ell^+\ell^-$ arises from $b\to d$ flavor-changing neutral currents and could be sensitive to physics beyond the Standard Model.
A. Bazavov, A. S. Kronfeld, A. X. El-Khadra, C. Bernard, C. DeTar, C. M. Bouchard, D. Toussaint, Daping Du, E. Gámiz, E. Lunghi, E. Neil, E. D. Freeland, J. Laiho, J. N. Simone, Jon A. Bailey, L. Levkova, null null, P. B. Mackenzie, R. Sugar, R. S. Van de Water, Ran Zhou, Si-Wei Qiu, Steven Gottlieb, U. M. Heller, Y. Meurice, Yuzhi Liu   +25 more
core   +2 more sources

Momentum broadening of partons on the light cone from the lattice [PDF]

, 2013
The jet quenching parameter describes the momentum broadening of a high-energy parton moving through the quark-gluon plasma. Following an approach originally proposed by Caron-Huot, we discuss how one can extract information on the collision kernel ...
Panero, Marco, Rummukainen, Kari, Schäfer, Andreas   +2 more
core   +2 more sources

Hadrons and Nuclei

, 2019
This document is one of a series of whitepapers from the USQCD collaboration. Here, we discuss opportunities for lattice QCD calculations related to the structure and spectroscopy of hadrons and nuclei.
Detmold, William, Dudek, Jozef J., Edwards, Robert G., Engelhardt, Michael, Lin, Huey-Wen, Meinel, Stefan, Orginos, Kostas, Shanahan, Phiala   +7 more
core   +1 more source

Opportunities for lattice QCD in quark and lepton flavor physics

, 2019
This document is one of a series of whitepapers from the USQCD collaboration. Here, we discuss opportunities for lattice QCD in quark and lepton flavor physics.
Blum, Tom, Christ, Norman H., El-Khadra, Aida X., Hansen, Maxwell T., Kronfeld, Andreas S., Laiho, Jack, Lehner, Christoph, Meinel, Stefan, Neil, Ethan T., Sharpe, Stephen R., Van de Water, Ruth S.   +10 more
core   +1 more source

Computation of the strong coupling in QCD with two dynamical flavours [PDF]

, 2004
We present a non-perturbative computation of the running of the coupling alpha_s in QCD with two flavours of dynamical fermions in the Schroedinger functional scheme. We improve our previous results by a reliable continuum extrapolation.
ALPHA Collaboration, Della Morte, Michele, Frezzotti, Roberto, Heitger, Jochen, Rolf, Juri, Sommer, Rainer, Wolff, Ulli   +6 more
core   +1 more source

Baryon interactions from lattice QCD with physical quark masses -- Nuclear forces and $\Xi\Xi$ forces -- [PDF]

, 2017
We present the latest lattice QCD results for baryon interactions obtained at nearly physical quark masses. $N_f = 2+1$ nonperturbatively ${\cal O}(a)$-improved Wilson quark action with stout smearing and Iwasaki gauge action are employed on the lattice ...
Aoki, Sinya, Doi, Takumi, Gongyo, Shinya, Hatsuda, Tetsuo, Ikeda, Yoichi, Inoue, Takashi, Iritani, Takumi, Ishii, Noriyoshi, Miyamoto, Takaya, Nemura, Hidekatsu, Sasaki, Kenji   +10 more
core   +2 more sources