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Measurement of the π0 electromagnetic transition form factor slope

  • C. Lazzeroni
  • , N. Lurkin
  • , A. Romano
  • , NA62 Collaboration The NA62 Collaboration
  • , T. Blazek
  • , M. Koval
  • , H. Danielsson
  • , V. Falaleev
  • , L. Gatignon
  • , S. Goy Lopez
  • , B. Hallgren
  • , A. Maier
  • , A. Peters
  • , M. Piccini
  • , P. Riedler
  • , P. L. Frabetti
  • , E. Gersabeck
  • , V. Kekelidze
  • , D. Madigozhin
  • , M. Misheva
  • N. Molokanova, S. Movchan, Yu Potrebenikov, S. Shkarovskiy, A. Zinchenko, P. Rubin, W. Baldini, A. Cotta Ramusino, P. Dalpiaz, M. Fiorini, A. Gianoli, A. Norton, F. Petrucci, M. Savrié, H. Wahl, A. Bizzeti, F. Bucci, E. Iacopini, M. Lenti, M. Veltri, A. Antonelli, M. Moulson, M. Raggi, T. Spadaro, K. Eppard, M. Hita-Hochgesand, K. Kleinknecht, B. Renk, R. Wanke, A. Winhart, R. Winston, V. Bolotov, V. Duk, E. Gushchin, F. Ambrosino, D. Di Filippo, P. Massarotti, M. Napolitano, V. Palladino, G. Saracino, G. Anzivino, E. Imbergamo, R. Piandani, A. Sergi, P. Cenci, M. Pepe, F. Costantini, N. Doble, S. Giudici, G. Pierazzini, M. Sozzi, S. Venditti, S. Balev, G. Collazuol, L. DiLella, S. Gallorini, E. Goudzovski, G. Lamanna, I. Mannelli, G. Ruggiero, C. Cerri, R. Fantechi, S. Kholodenko, V. Kurshetsov, V. Obraztsov, V. Semenov, O. Yushchenko, G. D'Agostini, E. Leonardi, M. Serra, P. Valente, A. Fucci, A. Salamon, B. Bloch-Devaux, B. Peyaud, J. Engelfried, D. Coward, V. Kozhuharov, L. Litov, R. Arcidiacono, S. Bifani, C. Biino, G. Dellacasa, F. Marchetto, T. Numao, F. Retière

Research output: Contribution to journalArticlepeer-review

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 π0 electromagnetic transition form factor slope parameter from 1.11×106 fully reconstructed K±→π±πD0, πD0→e+eγ events is reported. The measured value a=(3.68±0.57)×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.

Original languageEnglish
Pages (from-to)38-45
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume768
DOIs
Publication statusPublished - 10 May 2017
Externally publishedYes

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