# The 16th International Workshop on Tau Lepton Physics (TAU2021) (Virtual Edition)

September 27, 2021 to October 1, 2021
Indiana University
America/Indiana/Indianapolis timezone

## Measuring the inclusive cross section of e+ e- annihilation into hadrons at the KEDR experiment

Sep 30, 2021, 9:15 AM
25m
Virtual (Indiana University)

### Virtual

#### Indiana University

Oral contribution Tau2021 Abstracts

### Speaker

Korneliy Todyshev (BINP)

### Description

We present the results on the inclusive cross section of e+e- single
photon annihilation into hadrons in the energy range from 1.84 to 3.72 GeV obtained at the KEDR experiment, which include values of the R measurement in 22 points and of leptonic widths of J/psi and psi(2S) mesons. The results are important or determination of the muon anomalous magnetic moment, the fine structure constant at the Z^0 peak, the strong coupling constant as function of energy, and the heavy-quark masses.

What is your topic? Anomalous Magnetic Moment of the muon

### Presentation materials

 tau2021todyshev.pdf tau2021todyshev.pdf VideoTau2021_Todyshev.mp4