[Theory-seminars] Theory seminar August 30 - Shuntaro Sakai

[Patrick Barry]

Dear all,

We will restart our seminar series tomorrow, Monday, August 30 at 9:00 AM. Shuntaro Sakai will give a theory seminar on https://bluejeans.com/801786278<https://www.google.com/url?q=https://bluejeans.com/801786278/5878?src%3DcalendarLink&sa=D&source=calendar&usd=2&usg=AOvVaw25sgt91GOrFua-h6qKqY9J>, see below for details.

Theory seminar
Monday, August 30, 9:00 AM

Shuntaro Sakai (Osaka University) will talk about "Extraction of ND scattering lengths from the Lambda_b --> pi^- p D^0 decay and properties of the Sigma_c(2800)^+".

Abstract:
In this talk, we introduce our recent work on the analysis of the p D^0 invariant-mass distribution in the Lambda_b --> pi^- p D^0 decay to extract the S-wave ND scattering length with particular attention to the cusplike structure at the n D^+ threshold.
The analysis is based on a coupled-channel nonrelativistic effective field theory.
It is found that the isovector ND scattering length is largely enhanced by the pole near the ND threshold which can be associated with Sigma_c(2800)^+.
Our results suggest the spin and parity of this Sigma_c resonance is J^P=1/2^- which can couple to the S-wave ND channel.
This talk is based on Phys. Lett. B 808 (2020) 135623<https://arxiv.org/abs/2004.09824> by Shuntaro Sakai, Feng-Kun Guo, and Bastian Kubis.

The recordings and slides of our seminars can be found in the archives:
https://www.jlab.org/theory/seminars/2021seminars

Happy to be a part of the theory seminar organization!

Best,
Astrid, Colin and Patrick

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/theory-seminars/attachments/20210829/14ccfdf5/attachment.html>