scholarly journals Comparison of lattice QCD+QED predictions for radiative leptonic decays of light mesons with experimental data

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
R. Frezzotti ◽  
M. Garofalo ◽  
V. Lubicz ◽  
G. Martinelli ◽  
C. T. Sachrajda ◽  
...  
Keyword(s):  
Experimental Data ◽  
Lattice Qcd ◽  
Leptonic Decays ◽  
Light Mesons

scholarly journals Heavy-light mesons in a contact interaction

2018 ◽  
Vol 192 ◽  
pp. 00039 ◽  
Author(s):  
Marco A. Bedolla ◽  
Elena Santopinto
Keyword(s):  
Experimental Data ◽  
Lattice Qcd ◽  
Contact Interaction ◽  
Light Mesons

We present a unified formalism for the analysis of mesons. It is provided by a symmetry preserving Schwinger-Dyson-Bethe-Salpeter-Equation (SDBSE) treatment of a vector-vector contact interaction. The contact interaction (CI) model offers a simple-to-implement alternative to perform exploratory studies of QCD, within the SDBSE framework. Within the limitation of this model, we calculate the spectrum of D and B mesons. Our results are in agreement within 2% when compare with experimental data, lattice QCD and other SDBSE calculations involving sophisticated interaction kernels.

scholarly journals Spatial distributions in static heavy-light mesons: A comparison of quark models with lattice QCD

2011 ◽  
Vol 84 (5) ◽  
Author(s):  
D. Bećirević ◽  
E. Chang ◽  
L. Oliver ◽  
J.-C. Raynal ◽  
A. Le Yaouanc
Keyword(s):  
Lattice Qcd ◽  
Spatial Distributions ◽  
Light Mesons ◽  
Quark Models

scholarly journals Heavy-hadron interactions from Lattice QCD

2018 ◽  
Vol 181 ◽  
pp. 01027 ◽  
Author(s):  
Daniel Mohler
Keyword(s):  
Ab Initio ◽  
Lattice Qcd ◽  
Recent Progress ◽  
Charmed Baryons ◽  
Hadron Spectroscopy ◽  
Heavy Hadron ◽  
Lattice Calculations ◽  
Light Mesons

I review recent progress in heavy hadron spectroscopy and from ab-initio Lattice QCD calculations.After motivating lattice calculations for heavy-hadrons by contrasting recent LHCb results charmed and doubly-charmed baryons with lattice predictions, selected resultsfrom scattering calculations for heavy-light mesons and for charmonia are presented.I close with a discussion of recent Lattice QCD predictions of explicitlyexotic doubly-heavy states.

scholarly journals PARITY DOUBLING IN PARTICLE PHYSICS

2007 ◽  
Vol 22 (25) ◽  
pp. 4537-4586 ◽  
Author(s):  
S. S. AFONIN
Keyword(s):  
Experimental Data ◽  
Experimental Evidence ◽  
Retrospective Review ◽  
Particle Physics ◽  
Dynamical Symmetries ◽  
Regge Theory ◽  
History Of ◽  
The Subject ◽  
Light Mesons ◽  
Modern Perspective

Parity doubling in excited hadrons is reviewed. Parity degeneracy in hadrons was first experimentally observed 40 years ago. Recently new experimental data on light mesons caused much excitement and renewed interest to the phenomenon, which still remains to be enigmatic. The present retrospective review is an attempt to trace the history of parity doubling phenomenon, thus providing a kind of introduction to the subject. We begin with early approaches of 1960's (Regge theory and dynamical symmetries) and end up with the latest trends (manifestations of broader degeneracies and AdS/QCD). We show the evolution of various ideas about parity doubling. The experimental evidence for this phenomenon is scrutinized in the nonstrange sector. Some experiments of 1960's devoted to the search for missing nonstrange bosons are reexamined and it is argued that the results of these experiments are encouraging from the modern perspective.

Mass spectra of Ds meson from Nf = 2 twisted mass lattice QCD

2015 ◽  
Vol 30 (11) ◽  
pp. 1550060 ◽  
Author(s):  
Ning Li ◽  
Ya-Jie Wu
Keyword(s):  
Experimental Data ◽  
Lattice Qcd ◽  
Mass Spectra ◽  
Numerical Results ◽  
Mass Collaboration ◽  
Twisted Mass ◽  
Lattice Size ◽  
Ds Meson

In this paper, we study the mass spectra of Ds mesons, such as Ds, [Formula: see text] and Ds1. In the simulation, we use Nf = 2 twisted mass lattice QCD gauge configurations generated by the European Twisted Mass Collaboration (ETMC). The simulation is performed on lattices with lattice spacings a = 0.067 fm and lattice size 323×64, and a = 0.085 fm and lattice size 243×48, respectively. Our numerical results for the mass spectra of Ds mesons reached impressive agreement with the experimental data.

scholarly journals HEAVY-LIGHT MESONS AND CHIRAL SYMMETRY

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2209-2217 ◽  
Author(s):  
WILLIAM A. BARDEEN
Keyword(s):  
Experimental Data ◽  
Chiral Symmetry ◽  
Radiative Decays ◽  
Recent Experimental Data ◽  
Charmed Mesons ◽  
Chiral Structure ◽  
Theoretical Predictions ◽  
Light Mesons

The chiral structure of heavy-light mesons is explored with a particular focus on the nature of the DsJ charmed mesons. Theoretical predictions for the hadronic and radiative decays of these mesons are compared to recent experimental data.

scholarly journals Semi-leptonic decays of heavy mesons and the Isgur–Wise function in quenched lattice QCD

2002 ◽  
Vol 637 (1-3) ◽  
pp. 293-310 ◽  
Author(s):  
K.C. Bowler ◽  
G. Douglas ◽  
R.D. Kenway ◽  
G.N. Lacagnina ◽  
C.M. Maynard
Keyword(s):  
Lattice Qcd ◽  
Heavy Mesons ◽  
Leptonic Decays

Interactions between heavy-light mesons in lattice QCD

1997 ◽  
Vol 55 (5) ◽  
pp. 3077-3081 ◽  
Author(s):  
A. Mihály ◽  
H. R. Fiebig ◽  
H. Markum ◽  
K. Rabitsch
Keyword(s):  
Lattice Qcd ◽  
Light Mesons
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