[Theory-seminars] Theory Seminar Monday - De-Liang Yao

[Colin Egerer]

Hello All,

This coming Monday, January 24th at 9:00AM (EST) we will resume our (virtual) theory seminar series. To kick off the new year of scientific exchange, De-Liang Yao of Hunan University will give a (virtual) seminar on: https://jlab-org.zoomgov.com/j/1611179843?pwd=M09CNTFpbFVZSW1IQlhIMGp3RUVHUT09

Please see below for the title and abstract of De-Liang's talk.

Theory Seminar
Monday, January 24th at 9:00AM

De-Liang Yao (Hunan University) will speak about "Dispersive analysis of the scalar form factors in semileptonic decays"

Abstract:
The form factors in the semileptonic decays of heavy B/D meson decays can be represented by dispersion relations, which build an elegant bridge to communicate dynamical information from scattering regions. By fitting to the lattice QCD data on the form factors, the subtraction constants in the dispersive representations can be determined such that the form factors in the whole kinematical region are established. As byproducts, Cabibbo–Kobayashi–Maskawa elements can also be extracted with form-factor values at $q^2=0$. In this talk, I will first present a study of heavy-to-light scalar form factors with Muskhelishvili–Omnès dispersion relations, and then introduce a new parametrization of the form factors in $\bar{B}\to D\ell^-\bar{\nu}_\ell$ decays.

Have a pleasant weekend!
Caroline, Colin, & Patrick
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/theory-seminars/attachments/20220121/3248c767/attachment.html>