Browsing by Author "Bayar, Melahat"
Now showing items 1-10 of 10
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∑b,c to nucleon transitions in light cone QCD sum rules
Bayar, Melahat; Azizi, Kazem; Zeyrek, Mehmet T. (American Institute of Physics, 2011)The loop level flavor changing neutral current transitions of the ∑b→ nl+l-and ∑c→ pl+l- are investigated in the light cone QCD sum rules approach. Using the most general form of the interpolating current for ∑Q, Q =b or ... -
A comparative study on B -> K*l(+)l(-) and B -> K-0*(1430)l(+)l(-) decays in the supersymmetric models
Bashiry, Vali; Bayar, Melahat; Azizi, Kazem (World Scientific Publishing, 2011-04-20)In this paper, we compare the branching ratio and rate difference of electron channel to muon channel of B -> K-0*(1430)l(+)l(-) and B -> K*l(+)l(-) decays, where K-0*(1430) is the p-wave scalar meson, in the supersymmetric ... -
FCNC transition of Sigma(Q) to nucleon
Azizi, Kazem; Zeyrek, Mehmet Tevfik; Bayar, Melahat (SISSA, 2010)The loop level flavor changing neutral current transitions of the Sigma(b) -> nl(+)l(-) and Sigma(c) -> p l(+)l(-) are investigated in full QCD and heavy quark effective theory in the light cone QCD sum rules approach. ... -
FCNC transitions of Lambda(b,c) to nucleon in SM
Azizi, Kazem; Bayar, Melahat; Saraç, Yasemin; Sundu, Hayriye (IOP Publishing, 2010-11)We provide a comprehensive study of semileptonic flavor-changing neutral current transitions for Lambda(b) -> nl(+) l(-) and Lambda(c) -> pl(+) l(-) in the context of light cone QCD sum rules. Using the most general form ... -
Flavor-changing neutral currents transition of the Sigma(Q) to nucleon in full QCD and heavy quark effective theory
Azizi, Kazem; Bayar, Melahat; Zeyrek, Mehmet T. (IOP Publishing, 2010-08)The loop-level flavor-changing neutral currents transitions of the Sigma(b) -> nl(+)l(-) and Sigma(c) -> pl(+)l(-) are investigated in full QCD and heavy quark effective theory in the light cone QCD sum rules approach. ... -
G(Sigma Q Sigma Q pi) coupling constant via light cone QCD sum rules
Azizi, Kazem; Bayar, Melahat; Özpineci, Altuğ; Saraç, Yasemin (American Physical Society, 2010-10-11)Using the most general form of the interpolating currents, the coupling constants g(Sigma b Sigma b pi) and g(Sigma c Sigma c pi) are calculated within the light cone QCD sum rules approach. It is found that g(Sigma c Sigma ... -
Scalar quarkonia at finite temperature
Veliev, Elşen Veli; Sundu, Hayriye; Azizi, Kazem; Bayar, Melahat (American Physical Society, 2010-09-28)Masses and decay constants of the scalar quarkonia, chi(Q0)(Q = b, c) with quantum numbers I-G (J(PC)) = 0(+)(0(++)), are calculated in the framework of the QCD sum rules approach both in vacuum and finite temperature. The ... -
Semileptonic Bc to P-wave charmonia (Xc0,X c1,hc) transitions within QCD sum rules
Sundu, Hayriye; Azizi, Kazem; Bayar, Melahat (AIP Publishing, 2010-06)The form factors of the semileptonic Bc→S(AV) ℓν(ℓ=τ,μ,e) transitions, where S and AV denote the scalar Xc0 and axial vector (Xc1,hc) mesons, are calculated within the framework of the three-point QCD sum rules. The results ... -
Semileptonic Lambda b,c to nucleon transitions in full QCD at light cone
Azizi, Kazem; Bayar, Melahat; Saraç, Yasemin; Sundu, Hayriye (American Physical Society, 2009-11)The tree-level semileptonic Lambda(b)-> pl nu and Lambda(c)-> nl nu transitions are investigated using the light cone QCD sum rules approach in full theory. The spin 1/2, Lambda(Q) baryon with Q=b or c, is considered by ... -
Semileptonic transition of Sigma(b) to Sigma in light cone QCD sum rules
Azizi, Kazem; Bayar, Melahat; Özpineci, Altuğ; Saraç, Yasemin; Sundu, Hayriye (American Physical Society, 2012-01-03)We use distribution amplitudes of the light Sigma baryon and the most general form of the interpolating current for heavy Sigma(b) baryon to investigate the semileptonic Sigma(b) -> Sigma l(+)l(-) transition in light cone ...
