Volume 398 - The European Physical Society Conference on High Energy Physics (EPS-HEP2021) - T06: QCD and Hadronic Physics
Status of Measurements of the R value at BESIII
M. Irshad* and  On behalf of the BESIII collaboration
Full text: pdf
Pre-published on: March 08, 2022
Published on: May 12, 2022
Abstract
In precision tests of the Standard Model, the observables such as the QED running coupling constant $\alpha(M_{Z}^{2})$ evaluated at the $Z$ pole, and the anomalous magnetic moment $a_{\mu}^{\rm{SM}}$ of the muon, are of fundamental importance. The dominant uncertainties in both $\alpha\left(M_{Z}^{2}\right)$ and $a_{\mu}^{\rm{SM}}$ are due to the effects of hadronic vacuum polarization, which cannot be reliably calculated in the low energy region. This paper briefly reviewed the current status of measurement of $R$ values, using $e^{+}e^{-}$ collision data collected with BESIII detector at BEPCII storage ring in the center-of-mass energy range 2.2324 to 3.6710 GeV.
DOI: https://doi.org/10.22323/1.398.0338
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access