Factorization at Subleading Power and Endpoint Divergences in Soft-Collinear Effective Theory

by Prof. Matthias Neubert

Main Auditorium / zoom (Max Planck Insitute for Physics )

Main Auditorium / zoom

Max Planck Insitute for Physics

Annette Sturm is inviting you to a scheduled Zoom meeting. Topic: Seminar Matthias Neubert Time: Oct 12, 2020 11:00 AM Amsterdam, Berlin, Rome, Stockholm, Vienna Join Zoom Meeting Meeting ID: 957 7300 8135 Passcode: 963247 One tap mobile +496938079883,,95773008135#,,,,,,0#,,963247# Germany +496950502596,,95773008135#,,,,,,0#,,963247# Germany Dial by your location +49 69 3807 9883 Germany +49 695 050 2596 Germany +49 69 7104 9922 Germany +49 30 5679 5800 Germany Meeting ID: 957 7300 8135 Passcode: 963247 Find your local number: Join by SIP Join by H.323 Meeting ID: 957 7300 8135 Passcode: 963247

We derive the first renormalized factorization theorem for a process described at subleading power in soft-collinear effective theory. Endpoint divergences in convolution integrals, which arise generically beyond leading power, are regularized and removed by systematically rearranging the factorization formula. We study in detail the example of the $b$-quark induced $h\to\gamma\gamma$ decay of the Higgs boson, for which we derive the evolution equations for all quantities in the factorization theorem and resum large logarithms of the ratio $M_h/m_b$ at next-to-leading logarithmic order.

IMPORTANT: This is a special seminar with the speaker present at the MPP and with about 20 people allowed in the main auditorium. A zoom connection is organised for others not able to join in person. 

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