QCD sum rules study of the semileptonic B-s(B-+/-)(B-0) -> D-s[1968](D-0)(D-+/-)lv decays

2008-09-21
Azizi, K.
The form factors of the semileptonic Bq -> D-q (J(P) = 0(-))lv with q =s, u,d transitions are calculated in the framework of three point QCD sum rules. Using the q(2) dependencies of the relevant form factors, the total decay width and the branching ratio for these decays are also evaluated. A comparison of our results for the form factors of B -> Dlv with the lattice QCD predictions within heavy quark effective theory and zero recoil limit is presented. Our results of the branching ratio are in good agreement with the constituent quark meson model for (q = s, u, d) and experiment for (q = u, d). The result of branching ratio for B-s -> D-s(1968)lv indicates that this transition can also be detected at LHC in the near future.
NUCLEAR PHYSICS B

Suggestions

Semileptonic B-c to P-wave charmonia transitions within QCD sum rules
Azizi, K.; SUNDU PAMUK, HAYRİYE; BAYAR, MELAHAT (2009-06-01)
The form factors of the semileptonic B-c -> S(AV)l nu (l=tau, mu, e) transitions, where S and AV denote the scalar X-c0 and axial-vector (X-c1,h(c)) mesons, are calculated within the framework of the three-point QCD sum rules. The heavy quark effective theory limit of the form factors is also obtained and compared with the values of the original transition form factors. The results of form factors are used to estimate the total decay widths and branching ratios of these transitions. A comparison of our resu...
Semileptonic B-q -> D-q*l nu (q=s,d,u) decays in QCD sum rules
Azizi, K.; Bayar, M. (American Physical Society (APS), 2008-09-01)
The form factors relevant to B-q -> D-q*(J(P) = 1(-))l nu (q = s, d, u) decays are calculated in the framework of the three point QCD sum rules approach. The heavy quark effective theory prediction of the form factors as well as 1/m(b) corrections to those form factors are obtained. A comparison of the results for the ratio of form factors at zero recoil limit and other values of q(2) with the predictions of the subleading Isgur-Wise form factor application for B -> D*l nu is presented. The total decay widt...
Tensor form factors of B -> K-1 transition from QCD light cone sum rules
Alıyev, Tahmasıb; Savcı, Mustafa (Elsevier BV, 2011-05-30)
The tensor form factors of B into p-wave axial vector meson transition are calculated within light cone QCD sum rules method. The parametrizations of the tensor form factors based on the series expansion are presented.
Semileptonic B -> a(1)l nu decay in QCD
Alıyev, Tahmasıb; Savcı, Mustafa (1999-06-10)
The form factors and the branching ratio of the B --> a(1)lv decay are calculated in framework of QCD sum rules. A comparison of our results on form factors and branching ratio with the results from constituent quark model is presented. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
gamma*N -> N(1535) transition form factors in QCD
Alıyev, Tahmasıb; Savcı, Mustafa (2013-09-24)
The form factors, as well as the helicity amplitudes for the gamma*Nu -> Nu(1535) transition, are calculated in the framework of the QCD light-cone sum rules. The contamination coming from diagonal transition is eliminated by considering combinations of the sum rules corresponding to different Lorentz structures. A similar procedure is applied for the determination of the residue and mass of the negative-parity baryon. A comparison of our predictions on the helicity amplitudes with the existing theoretical ...
Citation Formats
K. Azizi, “QCD sum rules study of the semileptonic B-s(B-+/-)(B-0) -> D-s[1968](D-0)(D-+/-)lv decays,” NUCLEAR PHYSICS B, pp. 70–80, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64280.