Neutral pion form factor measurement by the NA62 experiment

2017/07/01 by M. Zamkovsky, F. Ambrosino, A. Antonelli +97 · 1 voice
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.1088/1742-6596/873/1/012016

openalex created_date 2017/04/07 · openalex publication_date 2017/07/01 · openalex updated_date 2026/07/30

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 π 0 Dalitz decay is presented. The limits on dark photon production in π 0 decays from the earlier kaon experiment at CERN, NA48/2, are also reported.

Citations

• Review of Multibody Charm Analyses

Discussions

• The initial valence quark assignment for the neutral pion came from the quark model, but the best direct experimental constraint on the quark content of the $\pi^0$ probably comes from its measured tw [stackexchange, 1 points]

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• Neutral pion form factor measurement at NA62
• Recent results from NA48/2 and NA62 experiments at CERN
• The NA62 Experiment at CERN
• Latest results from the NA62 experiment at CERN
• The Kaon identification system at the NA62 experiment at CERN