GPPU Seminar
Precise determination of |V_{cb}| by renormalon subtraction
Yuuki Hayashi
(Tohoku U.)
Date
15:00-17:00, March 08th, 2023Place
(hybrid) Room 745, Science Complex B (H-03), Zoom registration mapAbstract
Predicting the physics of the B meson requires both perturbative and non-perturbative contributions simultaneously, otherwise theoretical accuracy would be limited. In particular, it is necessary to formulate a method for subtracting renormalons that rapidly increase the perturbative expansion from the point of view of perturbation theory. We have developed a new method to subtract renormalons using the Laplace transform. In this talk we discuss the application of the method to the semileptonic B meson decay for the precise determination of |V_{cb}|, one of the CKM matrix elements.
Point
GASP 1Contact: Yusuke Tanimura (tanimura [at] nucl.phys.tohoku.ac.jp)