Measurement of hadronic cross section at KLOE/KLOE-2

Abstract

The measurement of the $\sigma (e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-})$ cross section allows to determine the pion form factor $|F_{\pi }{|}^2$ and the two pion contribution to the muon anomaly $a_{\mu }$. Such a measurement has been performed with the KLOE detector at $DA\Phi NE$, the Frascati $\varphi$-factory.The preliminary results on the combination of the last analysis (KLOE12) with two previous published (KLOE08, KLOE10) will be presented in the following.

6 pages, 2 figures, 1 table

References in corpus (1)

• Mini-Proceedings, 16th meeting of the Working Group on Radiative Corrections and MC Generators for Low Energies

Cited by in corpus (1)

• Muon g-2 estimates : Can one trust Effective Lagrangians and global fits ?