The NA62 experiment at CERN collected a large sample of charged kaon decays with a highly efficient trigger for decays into electrons in 2007. The kaon beam represents a source of tagged neutral pion decays in vacuum. A measurement of the electromagnetic transition form factor slope of the neutral pion in the time-like region from ∼1 million fully reconstructed π0 Dalitz decay is presented. The limits on dark photon production in π0 decays from the earlier kaon experiment at CERN, NA48/2, are also reported.

Study of π0 Dalitz decays in the NA62 and NA48/2 experiments

Baldini W.;Cotta Ramusino A.;Dalpiaz P.;Fiorini M.;Gianoli A.;Norton A.;Petrucci F.;Savrie M.;Wahl H.;
2017

Abstract

The NA62 experiment at CERN collected a large sample of charged kaon decays with a highly efficient trigger for decays into electrons in 2007. The kaon beam represents a source of tagged neutral pion decays in vacuum. A measurement of the electromagnetic transition form factor slope of the neutral pion in the time-like region from ∼1 million fully reconstructed π0 Dalitz decay is presented. The limits on dark photon production in π0 decays from the earlier kaon experiment at CERN, NA48/2, are also reported.
2017
dark photon, π0 form factor, NA48/2, NA62
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2424351
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