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arXiv · 1804.02953

B $\rightarrow f_2(1270)$ form factors with light-cone sum rules

Maximilian Emmerich·Matthias Strohmaier·Andreas Schäfer
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Abstract

We construct the quark-antiquark chiral odd distribution amplitudes including twist-four mass contributions for tensor mesons. We also give quark-antiquark-gluon distribution amplitudes, where we calculate the input parameters with QCD sum rules. With the help of equations of motion we determine the twist-three and twist-four distribution amplitudes including SU(3) breaking terms. We use QCD light-come sum rules to derive the form factors for the decay B $\rightarrow f_2(1270)$ with vector, axial-vector and tensor currents. We also give the $q^2$ dependence of the form factors.

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Maximilian Emmerich, Matthias Strohmaier, Andreas Schäfer. 2018-04-09. B $\rightarrow f_2(1270)$ form factors with light-cone sum rules. https://doi.org/10.1103/physrevd.98.014008

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