Browsing Electrical & Electronics Engineering by OzU Authors "Erkol, Güray"
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Axial charges of octet baryons in twoflavor lattice QCD
Erkol, Güray; Oka, M.; Takahashi, T. T. (Elsevier, 20100315)We evaluate the strangenessconserving NN, ΣΣ, ΞΞ, ΛΣ and the strangenesschanging ΛN, ΣN, ΛΞ, ΣΞ axial charges in lattice QCD with two flavors of dynamical quarks and extend our previous work on pseudoscalarmeson–octetbaryon ... 
Isovector axialvector form factors of octet baryons in QCD
Erkol, Güray; Ozpineci, A. (American Physical Society, 20110601)We compute the diagonal isovector axialvector as well as induced pseudoscalar form factors of nucleon, Σ, and ≡ baryons by employing the lightcone QCD sum rules to leading order in QCD and including distribution amplitudes ... 
Mesonbaryon coupling constants in twoflavor lattice QCD
Erkol, Güray; Oka, M.; Takahashi, T. T. (American Institute of Physics, 2010)We evaluate the pseudoscalarmeson coupling constants and the strangenessconservingand the strangenesschanging axial charges of octet baryons in lattice QCD with two flavors ofdynamical quarks.We find that the coupling ... 
Pseudoscalarmeson octetbaryon coupling constants from twoflavor lattice QCD
Takahashi, T. T.; Erkol, Güray; Oka, M. (Elsevier, 20100401)We evaluate the pseudoscalarmeson octetbaryon coupling constants and the corresponding axial charges in eight channels (πNN, πΣΣ, πΛΣ, KΛN, KΣN, πΞΞ, KΛΞ and KΣΞ) in lattice QCD with two flavors of dynamical quarks. The ... 
Pseudoscalarmesonoctetbaryon coupling constants in twoflavor lattice QCD
Erkol, Güray; Oka, M.; Takahashi, T. T. (American Physical Society, 20090401)We evaluate the πΝΝ, π∑∑, πΛ∑, KΛN and K∑N coupling constants and the corresponding monopole masses in lattice QCD with two flavors of dynamical quarks. The parameters representing the SU(3)flavor symmetry are computed ... 
QCD coupling constants and VDM
Erkol, Güray; Ozpineci, A.; Zamiralov, V. S. (AIP, 2012)QCD sum rules for coupling constants of vector mesons with baryons are constructed.The corresponding QCD sum rules for electric charges and magnetic moments are also derived and with the use of vectormesondominance model ... 
QCD sum rules for the coupling constants of vector mesons to octet baryons
Zamiralov, V. S.; Ozpineci, A.; Erkol, Güray (Springer Science+Business Media, 201305)The QCD sum rules on the light cone proposed by Wang for the coupling constants of the ρ meson are generalized to the vector mesons ω and φ and all octet baryons, the Λhyperon included. A comparison with other results is given. 
Spin content of Λ in QCD sum rules
Erkol, Güray; Oka, M. (American Physical Society, 20090601)We calculate the isoscalar axialvector coupling constants of the Λ hyperon using the method of QCD sum rules. A determination of these coupling constants reveals the individual contributions of the u, d, and the s quarks ... 
Tensor form factors of nucleon in QCD
Erkol, Güray; Ozpineci, A. (Elsevier, 20111025)We extract the isovector tensor nucleon form factors, which play an important role in understanding the transverse spin structure of the nucleon when related to the quark helicityflip generalized parton distributions via ...
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