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Related papers: Lattice Results For Heavy Quark Physics

200 papers

The status of Lattice QCD is reviewed with respect to results that are relevant to Standard Model phenomenology. I argue that in a few simple cases all (or almost all) systematic errors from the lattice calculation are under control.…

High Energy Physics - Phenomenology · Physics 2008-02-03 Aida X. El-Khadra

We present results of the first lattice QCD calculations of $B_c \to B_s$ and $B_c \to B_d$ weak matrix elements. Form factors across the entire physical $q^2$ range are then extracted and extrapolated to the physical-continuum limit before…

High Energy Physics - Lattice · Physics 2021-04-08 Laurence J. Cooper , Christine T. H. Davies , Judd Harrison , Javad Komijani , Matthew Wingate

Recent lattice studies of hadron properties, in particular of exotic states and charmonia are reviewed. Sea quark and quark mass effects are discussed as well as decays and mixing.

High Energy Physics - Lattice · Physics 2015-06-25 Gunnar S. Bali

Lattice Monte Carlo simulations now include the effects of 2 light sea quarks and 1 strange sea quark through the use of an improved staggered fermion action. Consequently, results important to phenomenology are free of the approximate 10%…

High Energy Physics - Phenomenology · Physics 2009-11-10 Matthew Wingate , Christine Davies , Alan Gray , Emel Gulez , Junko Shigemitsu , G. Peter Lepage

I describe a model for heavy meson decays based on an effective quark-meson lagrangian. I consider the heavy mesons S with spin and parity J^P=(1+,0+), H with J^P=(1-,0-) and T^mu with J^P=(2+,1+), i.e. S and P wave heavy-light mesons. The…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Deandrea

I present one-loop level calculations of the Isgur-Wise functions for B -> D^{(*)} + e + nu, of the matrix elements of isovector twist-2 operators in B and D mesons, and the matrix elements for the radiative decays D^* -> D + gamma in…

High Energy Physics - Phenomenology · Physics 2009-11-07 Martin J. Savage

Exploiting recently proposed novel improvements of the techniques used for extracting from QCD sum rules pivotal hadron characteristics, including their systematic errors, we succeed to achieve a conspicuous agreement of the predictions of…

High Energy Physics - Phenomenology · Physics 2014-04-15 Wolfgang Lucha , Dmitri Melikhov , Silvano Simula

The decreasing uncertainties in theoretical predictions and experimental measurements of several hadronic observables related to weak processes, which in many cases are now smaller than $\mathrm{O}(1\%)$, require theoretical calculations to…

We report on the advances in our unquenched calculation of the matrix elements relevant for the analysis of B^0-\bar B^0 mixing using the Asqtad (light quark) and Fermilab (heavy quark) actions. We have calculated the hadronic parameters…

High Energy Physics - Lattice · Physics 2010-11-19 R. Todd Evans , Elvira Gamiz , Aida X. El-Khadra , Massimo Di Pierro

This is a short review of the present status of the dynamics of the heavy quarks extracted from QCD spectral sum rules. We discuss the determination of the ``perturbative" quark mass, the decay constants of the $D$ and $B$ mesons, the form…

High Energy Physics - Phenomenology · Physics 2008-02-03 S. Narison

I present two recent pieces of work on semileptonic $B \to \pi, \rho$ decays where it is shown how lattice QCD calculations can be used to test heavy-quark symmetry and determine phenomenologically relevant quantities despite the limits on…

High Energy Physics - Phenomenology · Physics 2009-10-28 Laurent Lellouch

We report on a lattice investigation of heavy meson interactions and of tetraquark candidates with two very heavy quarks. These two quarks are treated in the static limit, while the other two are up, down, strange or charm quarks of finite…

High Energy Physics - Lattice · Physics 2015-05-01 Björn Wagenbach , Pedro Bicudo , Marc Wagner

I review recent developments in lattice calculations of B decay matrix elements and other related quantities.

High Energy Physics - Lattice · Physics 2015-06-25 Shoji Hashimoto

I discuss low energy aspects of heavy meson decays, where there is at least one heavy meson in the final state. Examples are $B -\bar{B}$ mixing, $B \to D \bar{D}$, $B \to D \eta'$, and $B \to D \gamma$. %and $B \to D W $ (Isgur-Wise…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jan O. Eeg

The semileptonic transition of $\Lambda_b$ baryon is studied using the Hypercentral constituent quark model. The six-dimensional hyperradial $Schr\ddot{o}dinger$ equation is solved in the variational approach to get masses and wavefunctions…

High Energy Physics - Phenomenology · Physics 2020-10-28 Kaushal Thakkar

I review this year's developments in the study of weak matrix elements of light hadrons on the lattice, with emphasis on K^0-\bar K^0 mixing and K -> pi pi decays.

High Energy Physics - Lattice · Physics 2009-10-31 Laurent Lellouch

A method for computing electromagnetic properties of hadrons in lattice QCD is applied to the extraction of electromagnetic properties of the octet baryons. This allows a determination of the full dependence of the baryon masses on the…

High Energy Physics - Lattice · Physics 2009-10-28 A. Duncan , E. Eichten , H. Thacker

A brief review is given of attempts to understand the energies of four-quark systems calculated on a lattice in terms of nuclear-physics-inspired many-body techniques involving interquark potentials. Results are given for the next stage of…

High Energy Physics - Lattice · Physics 2007-05-23 UKQCD Collaboration , A. M. Green , J. Koponen , P. Pennanen , C. Michael

I discuss the recent progress toward computing few-body observables using numerical lattice techniques. The focus is overwhelmingly on the latest results from lattice QCD calculations. I present preliminary results from a lattice…

Nuclear Theory · Physics 2007-05-23 Martin J. Savage

Form factors for pseudoscalar --> pseudoscalar decays of heavy-light mesons are found in quenched lattice QCD with heavy-quark masses in the range of approximately 1-2 GeV. The Isgur-Wise function, $\xi(\omega)$, is extracted from these…

High Energy Physics - Lattice · Physics 2010-11-01 UKQCD Collaboration , James N. Simone