Erratum to “Evolution of chirality from γ soft 108Ru to triaxial 110,112Ru” [Phys. Lett. B 670 (4–5) (2009) 307]

Can VMD improve the estimate of the muon g − 2?

“…Finally, the π + π − KLOE data set, collected at Frascati using the ISR method and reanalyzed recently [42], has been considered.…”

“…• Examine the effect of the π + π − KLOE data [42] separately, because the fit properties of this sample are not fully satisfactory.…”

“…[25], [26], [28]. Last line displays the result with KLOE data [42] included. In the last two lines the "experimental values" are averages proposed by [51].…”

Measurement of R at VEPP-2000

“…With the appearance of the ϕand Bfactories (detectors KLOE, BABAR, BELLE), a new approach, ISR, was developed [7], in which the data are taken at constant beam energy and the cross section e + e − → hadrons is extracted from the spectrum of e + e − → hadrons + γ events. The high precision measurement of e + e − → π + π − was performed at KLOE [8] and BABAR [9]; many other modes were measured at BABAR [10]. Here we discuss the energy scan-based measurements of R(s) at VEPP-2M and VEPP-2000.…”

Precise measurement of the e + e − → π + π − (γ) cross section with the initial state radiation method at BABAR

“…Approximately 73% contribution arises from this process alone which is the leading contributor to the uncertainty of the theoretical prediction for a μ . Comparison of the theoretical and measured [1] values of a μ shows a discrepancy of about 3σ when current e + e − data [2][3][4] are used, possibly hinting at new physics. An approach using τ decay data corrected for isospin-breaking, leads to a smaller difference [5].…”