Determination of coupling constants from superconvergence sum rules in vector meson — Vector meson scattering

1969 ◽  
Vol 226 (1) ◽  
pp. 34-48 ◽  
Author(s):  
N. Zovko ◽  
I. Andrić
Keyword(s):  
Vector Meson ◽  
Sum Rules ◽  
Coupling Constants

scholarly journals Vector meson-baryon strong coupling constants in light cone QCD sum rules

2009 ◽  
Vol 80 (1) ◽  
Author(s):  
T. M. Aliev ◽  
A. Özpineci ◽  
M. Savcı ◽  
V. S. Zamiralov
Keyword(s):  
Vector Meson ◽  
Strong Coupling ◽  
Light Cone ◽  
Sum Rules ◽  
Coupling Constants ◽  
Qcd Sum Rules

scholarly journals Determination of the possible quantum numbers for the newly observed Ξb(6227)0 state

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
K. Azizi ◽  
Y. Sarac ◽  
H. Sundu
Keyword(s):  
Experimental Data ◽  
Excited State ◽  
Excited States ◽  
Light Cone ◽  
Sum Rules ◽  
Lhcb Collaboration ◽  
Coupling Constants ◽  
Final State ◽  
Quantum Numbers

Abstract The LHCb Collaboration recently reported the observation of a new excited bottom baryon Ξb(6227)0 and announced an improvement in the measurements related to the previously observed Ξb(6227)− state. We conduct an analysis for Ξb(6227)0 state considering it as isospin partner of the Ξb(6227)− resonance and possibly 1P or 2S excited state with spin J = $$ \frac{3}{2} $$ 3 2 . The corresponding masses for both possibilities have consistent results with the experimental data, indicating that only with the mass sum rules, one can not make exact decision on the nature and quantum numbers of this state. To go further, the decays of these possible excited states to $$ {\Xi}_b^{-}{\pi}^{+} $$ Ξ b − π + final state are also considered and the relevant strong coupling constants are extracted from the light cone sum rules. The obtained decay width values support the possibility of Ξb(6227)0 to be the 1P excited state of Ξb(5945)0 baryon.

scholarly journals CHIRAL EFFECTIVE ACTION OF QCD: PRECISION TESTS, QUESTIONS AND ELECTROWEAK EXTENSIONS

2006 ◽  
Vol 21 (04) ◽  
pp. 756-761
Author(s):  
BACHIR MOUSSALLAM
Keyword(s):  
Standard Model ◽  
Effective Action ◽  
Sum Rules ◽  
Chiral Expansion ◽  
Coupling Constants ◽  
Effective Theory ◽  
Quark Masses ◽  
Systematic Description ◽  
Ozi Rule

This talk first discusses some aspects of the chiral expansion with three light flavours related to the (non) applicability of the OZI rule. Next, the extension of ChPT to an effective theory of the full standard model is considered. Some applications of a systematic description of the coupling constants by sum rules (e.g. to the determination of quark masses and Kl3decays) are presented.

scholarly journals Vector-meson–baryon coupling constants in QCD sum rules

2006 ◽  
Vol 74 (4) ◽  
Author(s):  
G. Erkol ◽  
R. G. E. Timmermans ◽  
Th. A. Rijken
Keyword(s):  
Vector Meson ◽  
Sum Rules ◽  
Coupling Constants ◽  
Qcd Sum Rules

scholarly journals Determination of pion-baryon coupling constants from QCD sum rules

1996 ◽  
Vol 54 (6) ◽  
pp. 3240-3246 ◽  
Author(s):  
Michael C. Birse ◽  
Boris Krippa
Keyword(s):  
Sum Rules ◽  
Coupling Constants ◽  
Qcd Sum Rules

scholarly journals VECTOR MESON DOMINANCE AND RADIATIVE DECAYS OF HEAVY SPIN-3/2 BARYONS TO HEAVY SPIN-1/2 BARYONS

2012 ◽  
Vol 27 (11) ◽  
pp. 1250054 ◽  
Author(s):  
T. M. ALIEV ◽  
M. SAVCI ◽  
V. S. ZAMIRALOV
Keyword(s):  
Vector Meson ◽  
Light Cone ◽  
Radiative Decay ◽  
Sum Rules ◽  
Coupling Constants ◽  
Radiative Decays ◽  
Vector Meson Dominance ◽  
Qcd Sum Rules ◽  
Light Vector ◽  
Decay Widths

Using the calculated values of the strong coupling constants of the heavy sextet spin-3/2 baryons to sextet and antitriplet heavy spin-1/2 baryons with light vector mesons within the light cone QCD sum rules method, and vector meson dominance assumption, the radiative decay widths are calculated. These widths are compared with the "direct" radiative decay widths predicted in the framework of the light cone QCD sum rules.

$\mathit{Ab\!-\!initio}$ Determination of Magnetic Interface Coupling Constants for Magnetic Multilayers

1997 ◽  
Vol 7 (11) ◽  
pp. 1299-1304 ◽  
Author(s):  
P. Weinberger ◽  
C. Sommers ◽  
U. Pustogowa ◽  
L. Szunyogh ◽  
B. Újfalussy
Keyword(s):  
Ab Initio ◽  
Magnetic Multilayers ◽  
Coupling Constants ◽  
Interface Coupling
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