scholarly journals Strong coupling constant of a negative parity nucleon with a π meson in light-cone QCD sum rules

2017 ◽  
Vol 95 (3) ◽  
Author(s):  
T. M. Aliev ◽  
T. Barakat ◽  
M. Savcı
Keyword(s):  
Strong Coupling ◽  
Light Cone ◽  
Sum Rules ◽  
Negative Parity ◽  
Strong Coupling Constant ◽  
Coupling Constant ◽  
Qcd Sum Rules

scholarly journals Strong Coupling Constants of Negative Parity Heavy Baryons with π and K Mesons

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
T. M. Aliev ◽  
S. Bilmis ◽  
M. Savci
Keyword(s):  
Strong Coupling ◽  
Light Cone ◽  
Sum Rules ◽  
Negative Parity ◽  
Coupling Constants ◽  
Positive Parity ◽  
Qcd Sum Rules ◽  
Heavy Baryons ◽  
K Mesons

The strong coupling constants of negative parity heavy baryons belonging to sextet and antitriplet representations of SUf(3) with light π and K mesons are estimated within the light cone QCD sum rules. It is observed that each class of the sextet-sextet, sextet-antitriplet, and antitriplet-antitriplet transitions can be described by only one corresponding function. The pollution arising from the positive to positive, positive to negative, and negative to positive parity baryons transitions is eliminated by constructing sum rules for different Lorentz structures. The obtained coupling constants are compared with the ones for the positive parity heavy baryons.

The gDsDsϕ strong coupling constant from QCD Sum Rules

2017 ◽  
Vol 957 ◽  
pp. 109-122 ◽  
Author(s):  
B. Osório Rodrigues ◽  
M.E. Bracco ◽  
A. Cerqueira
Keyword(s):  
Strong Coupling ◽  
Sum Rules ◽  
Strong Coupling Constant ◽  
Coupling Constant ◽  
Qcd Sum Rules

A QCD sum rules calculation of the J/ψD s * Ds strong coupling constant

2015 ◽  
Vol 51 (3) ◽  
Author(s):  
Bruno Osório Rodrigues ◽  
Mirian Enriqueta Bracco ◽  
Marcelo Chiapparini ◽  
Angelo Cerqueira
Keyword(s):  
Strong Coupling ◽  
Sum Rules ◽  
Strong Coupling Constant ◽  
Coupling Constant ◽  
Qcd Sum Rules

scholarly journals Reanalysis of Ωc→Ξc+K- Decay in QCD

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
T. M. Aliev ◽  
S. Bilmis ◽  
M. Savci
Keyword(s):  
Experimental Data ◽  
Strong Coupling ◽  
Light Cone ◽  
Sum Rules ◽  
Negative Parity ◽  
Coupling Constants ◽  
Qcd Sum Rules ◽  
Quantum Numbers ◽  
Decay Widths

The strong coupling constants of newly observed Ωc0 baryons with spins J=1/2 and J=3/2 decaying into Ξc+K- are estimated within light cone QCD sum rules. The calculations are performed within two different scenarios on quantum numbers of Ωc baryons: (a) all newly observed Ωc baryons are negative parity baryons; that is, the Ωc(3000), Ωc(3050), Ωc(3066), and Ωc(3090) have quantum numbers JP=1/2- and JP=3/2- states, respectively; (b) the states Ωc(3000) and Ωc(3050) have quantum numbers JP=1/2- and JP=1/2+, while the states Ωc(3066) and Ωc(3090) have the quantum numbers JP=3/2- and JP=3/2+, respectively. By using the obtained results on the coupling constants, we calculate the decay widths of the corresponding decay. The results on decay widths are compared with the experimental data of LHC Collaboration. We found out that the predictions on decay widths within these scenarios are considerably different from the experimental data; that is, both considered scenarios are ruled out.

Strong Coupling Constants of the Octet Baryons to K and π Mesons in Light Cone QCD Sum Rules

2007 ◽  
Author(s):  
T. M. Aliev ◽  
A. Ozpineci ◽  
S. Yakovlev ◽  
V. S. Zamiralov ◽  
Pietro Colangelo ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Light Cone ◽  
Sum Rules ◽  
Coupling Constants ◽  
Qcd Sum Rules ◽  
Octet Baryons
Sign in / Sign up

Export Citation Format

Share Document