منابع مشابه
The ππ scattering length from maximally twisted mass lattice QCD
We calculate the s-wave pion-pion scattering length in the isospin I = 2 channel in lattice QCD for pion masses ranging from 270 MeV to 485 MeV using two flavors of maximally twisted mass fermions at a lattice spacing of 0.086 fm. Additionally, we check for lattice artifacts with one calculation at a finer lattice spacing of 0.067 fm. We use chiral perturbation theory at next-to-leading order t...
متن کاملTransversity from Lattice QCD
A. Schäfer, A. Ali Khan, T. Burch, M. Göckeler, N. Warkentin, Institut für Theoretische Physik, Universität Regensburg, 93040 Regensburg; D. Brömmel, DESY, 22603 Hamburg; Ph. Hägler, T.R. Hemmert, Physik-Department, TU München, 85747 Garching; R. Horsley, J.M. Zanotti, School of Physics, University of Edinburgh, Edinburgh EH9 3JZ, UK; H. Perlt, A. Schiller, Institut für Theoretische Physik, Uni...
متن کاملPhenomenology from lattice QCD ∗
The lattice formulation of quantum field theory, combined with large scale numerical simulations, is contributing in a variety of ways to the current research effort in particle physics. In the present talk I will focus on lattice QCD and its rôle in quantifying non-perturbative strong interaction effects. I wish to apologize straight away to those colleagues whose work I will not be able to co...
متن کاملDlν from Lattice QCD
where w = v · v and G(1) = 1. At zero recoil (w = 1) heavy-quark symmetry requires FB→D∗(1) to be close to 1. So, |Vcb| is determined by dividing measurements of dΓ/dw by the phase space and well-known factors, and extrapolating to w → 1. This yields |Vcb|FB→D∗(1), and FB→D∗(1) is taken from “theory.” To date models [ 1] or a combination of a rigorous inequality plus judgment [ 2] have been use...
متن کاملCharmonium from Lattice QCD
Charmonium is an attractive system for the application of lattice QCD methods. While the sub-threshold spectrum has been considered in some detail in previous works, it is only very recently that excited and higherspin states and further properties such as radiative transitions and two-photon decays have come to be calculated. I report on this recent progress with reference to work done at Jeff...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2008
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.77.094507