[Theory-seminars] Theory Seminar Tomorrow - Yuchuan Feng (L102)

[Gloria Montana-Faiget]

Dear all,

Tomorrow at 1:00PM EDT, we will have a hybrid seminar given by Yuchuan Feng of George Washington University, in person in CC L102 and on the following Zoom link:

https://jlab-org.zoomgov.com/j/1605519910?pwd=gw9JbktkW2md9FsFnxDJfvFbd3eUl6.1

Please see below for the title and abstract.

And if you want to meet with the speaker, please sign up for one or more slots at this link:
https://docs.google.com/spreadsheets/d/15PN6Z2TrmMnbDbd1LYN35wzFDoWpefpUQMDct_QkNz4/edit?gid=0#gid=0<https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.google.com_spreadsheets_d_15PN6Z2TrmMnbDbd1LYN35wzFDoWpefpUQMDct-5FQkNz4_edit-3Fgid-3D0-23gid-3D0&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=FUKEpzQ_iKGpXpQ0Xqc8whL6HtjvOvoLnYEkFKeQ7R4&m=L4G4b-YP3OE_hzPhpNYbqtFN1qBIJoooC7nYbOVKBpDSuC5EIi3zbFbunw3DLYOQ&s=o317zW1ClwyINbzMb6F03Qhv9WAsu4H2WciUkAh1IKw&e=>


Theory Seminar: March 10th, 1pm EDT (hybrid)

Speaker: Yuchuan Feng (George Washington University)

Title: Progress in Coupled-Channel Three-Body Scattering

Abstract: Including three-body dynamics above threshold is required for the reliable extraction of many amplitudes and resonances from experiment and lattice QCD. The S-matrix principle of unitarity can be used to construct amplitudes for three-particle scattering, rearranging two-body subsystems by particle exchange. Our work presents a unitary coupled-channel method that includes pions and kaons, evaluated for the example of the a1(1260) system. The model contains two-body S- and P-wave subsystems (isobars) of all isospins. We evaluate and compare the production amplitudes for physical momenta with traditional isobar lineshapes to show coupled-channel and rescattering effects.

See you all tomorrow!

Best regards,

Joe, Zheng-Yang, and Gloria

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