The radiative return at phi- and B-factories: FSR for muon pair production at next-to-leading order
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The radiative return at phi- and B-factories: FSR for muon pair production at next-to-leading order

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The radiative return at phi- and B-factories: FSR for muon pair production at next-to-leading order

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Czyz, Henryk; Grzelinska, Agnieszka; Kühn, Johann H.; Rodrigo García, Germán Vicente
This document is a artículoDate2005

Este documento está disponible también en : http://hdl.handle.net/10550/44448
Muon pair production through the radiative return is of importance for a measurement of the hadronic production cross section in two ways: it provides an independent calibration and it may give rise to an important background for a measurement of the pion form factor. With this motivation the Monte Carlo event generator PHOKHARA is extended to include next-to-leading order radiative corrections to the reaction e+e−→μ+μ−γ. Furthermore, virtual ISR corrections to FSR from pions are introduced, which extends the applicability of the generator into a new kinematical regime. Finally, the effect of photon vacuum polarization is introduced into this new version of the generator.

    Czyz, Henryk Grzelinska, Agnieszka Kühn, Johann H. Rodrigo García, Germán Vicente 2005 The radiative return at phi- and B-factories: FSR for muon pair production at next-to-leading order European Physical Journal C 39 4 411 420
http://dx.doi.org/10.1140/epjc/s2004-02103-1

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