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Precision measurement of $��(e^+e^-\rightarrow��^+��^-��)/��(e^+e^-\rightarrow ��^+��^-��)$ and determination of the $��^+��^-$ contribution to the muon anomaly with the KLOE detector
- Publication Year :
- 2012
- Publisher :
- arXiv, 2012.
-
Abstract
- We have measured the ratio $��(e^+e^-\rightarrow��^+��^-��)/��(e^+e^-\rightarrow ��^+��^-��)$, with the KLOE detector at DA$��$NE for a total integrated luminosity of $\sim$ 240 pb$^{-1}$. From this ratio we obtain the cross section $��(e^+e^-\rightarrow��^+��^-)$. From the cross section we determine the pion form factor $|F_��|^2$ and the two-pion contribution to the muon anomaly $a_��$ for $0.592<br />18 pages, 8 figures, minor text corrections, one table added, version to appear on Physics Letters B
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........7e28ce0ba0b6e77617cd86dafb525e3e
- Full Text :
- https://doi.org/10.48550/arxiv.1212.4524