4,974 research outputs found
The masses and residues of doubly heavy spin--3/2 baryons
The masses and residues of the spin--3/2 doubly heavy baryons are calculated
within the QCD sum rules method. A comparison of our predictions with those
existing in the literature is also made.Comment: 11 Pages and 4 Table
Analysis of rare (B -> K_0*(1430) l^+ l^- decay) within QCD sum rules
Form factors of rare (B -> K_0*(1430) l^+ l^- decay) can
give valuable information about the nature of scalar meson (K_0* (1430)).Comment: 13 pages, 1 figur
Masses and Residues of the Triply Heavy Spin-1/2 Baryons
We calculate the masses and residues of the triply heavy spin--1/2 baryons
using the most general form of their interpolating currents within the QCD sum
rules method. We compare the obtained results with the existing theoretical
predictions in the literature.Comment: 9 Pages and 3 Table
Properties of triply heavy spin--3/2 baryons
The masses and residues of the triply heavy spin--3/2 baryons are calculated
in framework of the QCD sum rule approach. The obtained results are compared
with the existing theoretical predictions in the literature.Comment: 13 Pages, 2 Figures and 4 Tables, To be appear in Journal of Physics
G: Nuclear and Particle Physic
Vertices of the heavy spin-3/2 sextet baryons with light vector mesons in QCD
All transitions among the heavy spin--3/2 sextet baryons with participation
of the light vector mesons are investigated in the framework of
the light cone sum rules. These vertices are described by four coupling
constants. The corresponding sum rules are derived for each coupling constant.
It is shown that the correlation functions of different transitions can be
described by only one invariant function.Comment: 12 Pages, 4 Figures and 3 Table
Magnetic moments of - transitions in light cone QCD
The - transition magnetic moments are calculated in
framework of the light cone QCD sum rules method (LCSR). The values of the
transition magnetic moments obtained are compared with the predictions of the
other theoretical approaches.Comment: 11 pages, 4 figures, LaTeX formatte
Diagonal and transition magnetic moments of negative parity heavy baryons in QCD sum rules
Diagonal and transition magnetic moments of the negative parity, spin-1/2
heavy baryons are studied in framework of the light cone QCD sum rules. By
constructing the sum rules for different Lorentz structures, the unwanted
contributions coming from negative (positive) to positive (negative) parity
transitions are removed. It is obtained that the magnetic moments of all
baryons, except , and , are quite
large. It is also found that the transition magnetic moments between neutral
negative parity heavy and baryons are very small.
Magnetic moments of the and transitions are quite large and can be measured in further
experiments.Comment: 31 pages, 4 figures, LaTeX formatted. arXiv admin note: substantial
text overlap with arXiv:1504.00172, arXiv:1504.0818
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