Determination of σ ( e + e − → π + π − ) from radiative processes at DAΦNE The KLOE Collaboration
نویسندگان
چکیده
We have measured the cross section σ(e+e−→π+π−γ) with the KLOE detector at DAΦNE, at an energy W = Mφ = 1.02 GeV. From the dependence of the cross section on m(ππ) = √ W 2 − 2WEγ , where Eγ is the energy of the photon radiated from the initial state, we extract σ(e+e−→π+π−) for the mass range 0.35 < m(ππ) < 0.95 GeV. From our result we extract the pion form factor and the hadronic contribution to the muon anomaly, aμ. 1 Hadronic Cross Section at DAΦNE
منابع مشابه
Determination of σ ( e + e − → π + π − ) from radiative processes at DAΦNE
We have measured the cross section σ(e+e−→π+π−γ) with the KLOE detector at DAΦNE, at an energy W = Mφ = 1.02 GeV. From the dependence of the cross section on m(ππ) = √ W 2 − 2WEγ , where Eγ is the energy of the photon radiated from the initial state, we extract σ(e+e−→π+π−) for the mass range 0.35 < m(ππ) < 0.95 GeV. From our result we extract the pion form factor and the hadronic contribution ...
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تاریخ انتشار 2003