A new method for QCD sum rules: The L∞ norm approach

2008 ◽  
pp. 137-157
Author(s):  
G. Mennessier ◽  
M.B. Causse ◽  
G. Auberson
Keyword(s):  
Sum Rules ◽  
New Method ◽  
Qcd Sum Rules

scholarly journals Double Pole Method in QCD Sum Rules for Vector Mesons

2021 ◽  
Author(s):  
Mikael Souto Maior de Sousa ◽  
Rômulo Rodrigues da Silva
Keyword(s):  
Excited State ◽  
Spectral Density ◽  
Sum Rules ◽  
Ground States ◽  
Experimental Results ◽  
The Other ◽  
New Method ◽  
Vector Mesons ◽  
Qcd Sum Rules ◽  
Simple Modification

The QCD Sum Rules approach had proposed by Shifman, Vaishtein Zakharov Novikov, Okun and Voloshin (SVZNOV) in 1979 and has been used as a method for extracting useful properties of hadrons having the lowest mass, called as ground states. On the other hand, the most recent experimental results make it clear that the study of the excited states can help to solve many puzzles about the new XYZ mesons structure. In this paper, we propose a new method to study the first excited state of the vector mesons, in particular we focus our attention on the study of the ρ vector mesons, that have been studied previously by SVZNOV method. In principle, the method that we used is a simple modification to the shape of the spectral density of the SVZNOV method, which is written as “pole + continuum”, to a new functional form “pole + pole + continuum”. In this way, We may obtain the ρ and the ρ 2 S masses and also their decay constants.

scholarly journals QCD sum rules for parameters of the B -meson distribution amplitudes

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
Muslem Rahimi ◽  
Marcel Wald
Keyword(s):  
B Meson ◽  
Sum Rules ◽  
Qcd Sum Rules

scholarly journals The field strength correlator from QCD sum rules

2000 ◽  
Vol 86 (1-3) ◽  
pp. 421-425 ◽  
Author(s):  
M. Eidemüller ◽  
H.G. Dosch ◽  
M. Jamin
Keyword(s):  
Field Strength ◽  
Sum Rules ◽  
Qcd Sum Rules

scholarly journals The Radiative Δ(1600) → γN Decay in the Light-Cone QCD Sum Rules

Universe ◽  
2021 ◽  
Vol 7 (8) ◽  
pp. 255
Author(s):  
Haifa I. Alrebdi ◽  
Thabit Barakat
Keyword(s):  
Decay Rate ◽  
Light Cone ◽  
Magnetic Dipole Moment ◽  
Sum Rules ◽  
Electric Quadrupole ◽  
The Other ◽  
Electric Quadrupole Moment ◽  
Multipole Moments ◽  
Qcd Sum Rules ◽  
Strongly Agree

Within the framework of the light-cone QCD sum rules method (LCSR’s), the radiative Δ(1600)→γN decay is studied. In particular, the magnetic dipole moment GM1(0) and the electric quadrupole moment GE1(0) are estimated. We also calculate the ratio REM=−GE1(0)GM1(0) and the decay rate. The predicted multipole moments and the decay rate strongly agree with the existing experimental results as well as with the other available phenomenological approaches.

scholarly journals Thermal properties of $D_2^*(2460)$ and $D_{s2}^*(2573)$ tensor mesons using QCD sum rules

2014 ◽  
Vol 41 (3) ◽  
pp. 035003 ◽  
Author(s):  
K Azizi ◽  
H Sundu ◽  
A Türkan ◽  
E Veli Veliev
Keyword(s):  
Thermal Properties ◽  
Sum Rules ◽  
Qcd Sum Rules

pentaquarks in QCD sum rules

2010 ◽  
Vol 835 (1-4) ◽  
pp. 342-345
Author(s):  
Philipp Gubler ◽  
Daisuke Jido ◽  
Toru Kojo ◽  
Tetsuo Nishikawa ◽  
Makoto Oka
Keyword(s):  
Sum Rules ◽  
Qcd Sum Rules

String tension and plaquette-plaquette correlation from QCD sum rules

1986 ◽  
Vol 176 (3-4) ◽  
pp. 449-455 ◽  
Author(s):  
E. Bagán ◽  
J.I. Latorre
Keyword(s):  
Sum Rules ◽  
String Tension ◽  
Qcd Sum Rules

scholarly journals Heavy-meson decay constants from QCD sum rules

2010 ◽  
Author(s):  
Wolfgang Lucha ◽  
Dmitri Melikhov ◽  
Silvano Simula ◽  
Leonardo Angelini ◽  
Pietro Colangelo ◽  
...  
Keyword(s):  
Sum Rules ◽  
Heavy Meson ◽  
Meson Decay ◽  
Qcd Sum Rules ◽  
Decay Constants
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