scholarly journals Strong coupling constants of charmed and bottom mesons with light vector mesons in QCD sum rules

2021 ◽  
Vol 104 (7) ◽  
Author(s):  
T. M. Aliev ◽  
K. Şimşek
Keyword(s):  
Strong Coupling ◽  
Sum Rules ◽  
Coupling Constants ◽  
Vector Mesons ◽  
Qcd Sum Rules ◽  
Light Vector ◽  
Bottom Mesons

scholarly journals Strong coupling constants of doubly heavy baryons with vector mesons in QCD

2020 ◽  
Vol 80 (10) ◽  
Author(s):  
T. M. Aliev ◽  
K. Şimşek
Keyword(s):  
Experimental Data ◽  
Strong Coupling ◽  
Light Cone ◽  
Particle Distribution ◽  
Sum Rules ◽  
Magnetic Coupling ◽  
Coupling Constants ◽  
Vector Mesons ◽  
Heavy Baryons ◽  
Light Vector

AbstractUsing the most general form of the interpolating current for baryons, the strong electric and magnetic coupling constants of light vector mesons $$ \rho $$ ρ and $$ K^* $$ K ∗ with doubly heavy baryons are computed within the light-cone sum rules. We consider 2- and 3-particle distribution amplitudes of the aforementioned vector mesons. The obtained results can be useful in the analysis of experimental data on the properties of doubly heavy baryons conducted at LHC.

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

scholarly journals Analysis of the strong vertices of Σc∗ND and Σb∗NB in QCD sum rules

2017 ◽  
Vol 32 (35) ◽  
pp. 1750203 ◽  
Author(s):  
Guo-Liang Yu ◽  
Zhi-Gang Wang ◽  
Zhen-Yu Li
Keyword(s):  
Strong Coupling ◽  
Sum Rules ◽  
Form Factors ◽  
Coupling Constants ◽  
Strong Interactions ◽  
Dirac Structure ◽  
Qcd Sum Rules ◽  
Analytical Functions ◽  
Heavy Baryons ◽  
Perturbative Part

The strong coupling constants not only are important to understand the strong interactions of the heavy baryons, but can also help us reveal the nature and structure of these baryons. Additionally, researchers indeed have made great efforts to calculate some of the strong coupling constants, [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], etc. In this paper, we analyze the strong vertices [Formula: see text] and [Formula: see text] using the three-point QCD sum rules under the Dirac structure of [Formula: see text]. We perform our analysis by considering the contributions of the perturbative part and the condensate terms of [Formula: see text] and [Formula: see text]. After the form factors are calculated, they are then fitted into analytical functions which are used to get the strong coupling constants for these two vertices. The final results are [Formula: see text] and [Formula: see text].

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 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.

scholarly journals Analysis of the strong vertices of ΣcND∗ and ΣbNB∗ in QCD sum rules

2018 ◽  
Vol 33 (36) ◽  
pp. 1850217
Author(s):  
Guo-Liang Yu ◽  
Rong-Hua Guan ◽  
Zhi-Gang Wang
Keyword(s):  
Strong Coupling ◽  
Sum Rules ◽  
Form Factors ◽  
Coupling Constants ◽  
Coupling Constant ◽  
Strong Decay ◽  
Qcd Sum Rules ◽  
Dirac Structures ◽  
Analytical Functions ◽  
Perturbative Part

The strong coupling constant is an important parameter that can help us understand the strong decay behaviors of baryons. In our previous work, we have analyzed the strong vertices [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] in QCD sum rules. Following these works, we further analyze the strong vertices [Formula: see text] and [Formula: see text] using the three-point QCD sum rules under Dirac structures [Formula: see text] and [Formula: see text]. In this work, we first calculate strong form-factors considering contributions of the perturbative part and the condensate terms [Formula: see text], [Formula: see text] and [Formula: see text]. Then, these form-factors are used to fit into analytical functions. According to these functions, we finally determine the values of the strong coupling constants for these two vertices [Formula: see text] and [Formula: see text].

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