# Measurement of the $π^0$ electromagnetic transition form factor slope

Ruggiero, Giuseppe (2017) Measurement of the $π^0$ electromagnetic transition form factor slope. Physics Letters B, 769. pp. 38-45. ISSN 0370-2693

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## Abstract

The NA62 experiment collected a large sample of charged kaon decays in 2007 with a highly efficient trigger for decays into electrons. A measurement of the $\pi^0$ electromagnetic transition form factor slope parameter from $1.11\times10^{6}$ fully reconstructed $K^\pm \to \pi^\pm \pi^0_D, \pi^0_D \to e^+ e^-\gamma$ events is reported. The measured value $a = (3.68 \pm 0.57)\times10^{-2}$ is in good agreement with theoretical expectations and previous measurements, and represents the most precise experimental determination of the slope in the time-like momentum transfer region.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
Departments:
ID Code:
124997
Deposited By:
Deposited On:
03 May 2018 15:04
Refereed?:
Yes
Published?:
Published