We have measured the cross section sigma(e(+)e(-) --> pi (+) pi (-) y) at an energy W = m(phi) = 1.02 GeV with the KLOE detector at the electron-positron collider DAPhiNE. From the dependence of the cross section on the invariant mass of the two-pion system, we extract sigma(e(+) e(-) --> pi(+)pi(-)) for the mass range 0.35 < s < 0.95 GeV2. From this result, we calculate the pion form factor and the hadronic contribution to the muon anomaly, A(mu). (C) 2004 Elsevier B.V. All rights reserved.

Aloisio, A., Ambrosino, F., Antonelli, A., Antonelli, M., Bacci, C., Barva, M., et al. (2005). Measurement of sigma(e(+)e(-) -> pi(+)pi(-)gamma) and extraction of sigma(e(+)e(-) -> pi(+)pi(-)) below 1 GeV with the KLOE detector. PHYSICS LETTERS. SECTION B, 606(1-2), 12-24 [10.1016/j.physletb.2004.11.068].

Measurement of sigma(e(+)e(-) -> pi(+)pi(-)gamma) and extraction of sigma(e(+)e(-) -> pi(+)pi(-)) below 1 GeV with the KLOE detector

CARBONI, GIOVANNI;MESSI, ROBERTO;SANTOVETTI, EMANUELE;
2005-01-01

Abstract

We have measured the cross section sigma(e(+)e(-) --> pi (+) pi (-) y) at an energy W = m(phi) = 1.02 GeV with the KLOE detector at the electron-positron collider DAPhiNE. From the dependence of the cross section on the invariant mass of the two-pion system, we extract sigma(e(+) e(-) --> pi(+)pi(-)) for the mass range 0.35 < s < 0.95 GeV2. From this result, we calculate the pion form factor and the hadronic contribution to the muon anomaly, A(mu). (C) 2004 Elsevier B.V. All rights reserved.
2005
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Con Impact Factor ISI
hadronic cross section; initial state radiation; pion form factor; muon anomaly
13
Aloisio, A., Ambrosino, F., Antonelli, A., Antonelli, M., Bacci, C., Barva, M., et al. (2005). Measurement of sigma(e(+)e(-) -> pi(+)pi(-)gamma) and extraction of sigma(e(+)e(-) -> pi(+)pi(-)) below 1 GeV with the KLOE detector. PHYSICS LETTERS. SECTION B, 606(1-2), 12-24 [10.1016/j.physletb.2004.11.068].
Aloisio, A; Ambrosino, F; Antonelli, A; Antonelli, M; Bacci, C; Barva, M; Bencivenni, G; Bertolucci, S; Bini, C; Bloise, C; Bocci, V; Bossi, F; Branch...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/26972
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