Determination of Standard Model Parameters from Lattice Qcd
نویسنده
چکیده
In this talk I review some recent results from lattice QCD calculations which aim to a more accurate determination of the Standard Model parameters in the quark sector. After a review of our current knowledge of these parameters, I present lattice results for the strange, charm and bottom quark masses, the CKM matrix element Vub and the complex CKM phase δ, which induces CP violation effects in the Standard Model with three generations.
منابع مشابه
Data Envelopment Analysis from simulation on the Lattice QCD using CCR model
One of the most serious principles in production theory in economic is the principle of "efficiency". Simply put, efficiency can be defined as the demand that the desired goals (outputs) are achieved with the minimum use of the available resources (inputs). In order to, distinguish the relative efficiency of organizational units with multiple inputs to produce multiple outputs, "Data Envelopmen...
متن کاملLight quark masses and CKM matrix elements from lattice QCD
I give a brief overview of recent results from lattice QCD calculations which are relevant for the phenomenology of the Standard Model. I discuss, in particular, the lattice determination of light quark masses and the calculation of those hadronic quantities, such as semileptonic form factors, decay constants and B-parameters, which are of particular interest for the analysis of the CKM mixing ...
متن کاملLattice qcd, flavor physics and the unitarity triangle analysis
Lattice QCD has always played a relevant role in the studies of flavor physics and, in particular, in the Unitarity Triangle (UT) analysis. Before the starting of the B factories, this analysis relied on the results of lattice QCD simulations to relate the experimental determinations of semileptonic B decays, K − K̄ and Bd,s − B̄d,s mixing to the CKM parameters. In the last years much more inform...
متن کاملStatus of Lattice QCD
Significant progress has recently been achieved in the lattice gauge theory calculations required for extracting the fundamental parameters of the standard model from experiment. Recent lattice determinations of such quantities as the kaon B parameter, the mass of the b quark, and the strong coupling constant have produced results and uncertainties as good or better than the best conventional d...
متن کاملThe strange quark mass from scalar sum rules updated
A precise determination of the strange quark mass, being one of the fundamental parameters in the Standard Model (SM), is of paramount interest in several areas of present day particle phenomenology. Until today two main methods have been employed to achieve this task. QCD sum rules [2] have been applied to various channels containing strange quantum numbers, in particular the scalar channel th...
متن کامل