Published May 2017 | Version v1
Journal article Metadata-only

Measurement of the π0 electromagnetic transition form factor slope

Creators

  • 1. Univ Birmingham, Birmingham B15 2TT, W Midlands (United Kingdom)
  • 2. Univ Turin, Dipartimento Fis, I-10125 Turin (Italy)
  • 3. CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette (France)

Description

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 π0 electromagnetic transition form factor slope parameter from 1.11 x 106 fully reconstructed K± → π±π0D, π0D → e+ e- γ events is reported. The measured value a = (3.68 ± 0.57) x 10-2 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. (authors)

Availability note (English)

Available from doi: http://dx.doi.org/10.1016/j.physletb.2017.02.042

Additional details

Identifiers

DOI
10.1016/j.physletb.2017.02.042;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
768
Journal Page Range
p. 38-45
ISSN
0370-2693

INIS

Country of Publication
Netherlands
Country of Input or Organization
France
INIS RN
53103194
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ELECTRONS; ENERGY-LEVEL TRANSITIONS; FORM FACTORS; KAONS; MOMENTUM TRANSFER; PARTICLE DECAY; PIONS NEUTRAL; POSITRONS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BOSONS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; LEPTONS; MATTER; MESONS; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES