KLOE uses the radiative return to measure cross section σ(e(+) e(-) &RARR; π(+) π(-) γ) at the electron-positron collider DA&UPhi; NE. Divinding by a theoretical radiator function, we obtain the cross section σ(e(+) e(-) &RARR; π(+) π(-)) for the mass range 0.35 < s(π) < 0.95 GeV2. We calculate the hadronic contribution to the muon anomaly for the given mass range: a(μ) = 388.7 &PLUSMN; 0.8(stat) &PLUSMN; 3.5syst &PLUSMN; 3.5(th).
The hadronic cross section measurement at KLOE
SCURI, Fabrizio;
2005-01-01
Abstract
KLOE uses the radiative return to measure cross section σ(e(+) e(-) &RARR; π(+) π(-) γ) at the electron-positron collider DA&UPhi; NE. Divinding by a theoretical radiator function, we obtain the cross section σ(e(+) e(-) &RARR; π(+) π(-)) for the mass range 0.35 < s(π) < 0.95 GeV2. We calculate the hadronic contribution to the muon anomaly for the given mass range: a(μ) = 388.7 &PLUSMN; 0.8(stat) &PLUSMN; 3.5syst &PLUSMN; 3.5(th).File in questo prodotto:
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