EPJ Web of Conferences (Mar 2014)

A search for the K−pp bound state in the 3He(K−in-flight, n) reaction at J-PARC

  • Hashimoto T.,
  • Ajimura S.,
  • Beer G.,
  • Bhang H.,
  • Bragadireanu M.,
  • Buehler P.,
  • Busso L.,
  • Cargnelli M.,
  • Choi S.,
  • Curceanu C.,
  • Enomoto S.,
  • Faso D.,
  • Fujioka H.,
  • Fujiwara Y.,
  • Fukuda T.,
  • Guaraldo C.,
  • Hayano R. S.,
  • Hiraiwa T.,
  • Iio M.,
  • Iliescu M.,
  • Inoue K.,
  • Ishiguro Y.,
  • Ishikawa T.,
  • Ishimoto S.,
  • Ishiwatari T.,
  • Itahashi K.,
  • Iwai M.,
  • Iwasaki M.,
  • Kato Y.,
  • Kawasaki S.,
  • Kienle P.,
  • Kou H.,
  • Ma Y.,
  • Marton J.,
  • Matsuda Y.,
  • Mizoi Y.,
  • Morra O.,
  • Nagae T.,
  • Noumi H.,
  • Ohnishi H.,
  • Okada S.,
  • Outa H.,
  • Piscicchia K.,
  • Poli Lener M.,
  • Romero Vida A.,
  • Sada Y.,
  • Sakaguchi A.,
  • Sakuma F.,
  • Sato M.,
  • Scordo A.,
  • Sekimoto M.,
  • Shi H.,
  • Sirghi D.,
  • Sirghi F.,
  • Suzuki K.,
  • Suzuki S.,
  • Suzuki T.,
  • Tanida K.,
  • Tatsuno H.,
  • Tokuda M.,
  • Tomono D.,
  • Toyoda A.,
  • Tsukada K.,
  • Vazquez Doce O.,
  • Widmann E.,
  • Wuenschek B. K.,
  • Yamaga T.,
  • Yamazaki T.,
  • Yim H.,
  • Zhang Q.,
  • Zmeska J.

DOI
https://doi.org/10.1051/epjconf/20146609008
Journal volume & issue
Vol. 66
p. 09008

Abstract

Read online

We have collected the first physics data of an experimental search for the simplest kaonic nuclear bound state, “K− pp”, by the 3He(K− n) reaction at J-PARC. We confirmed that our spectrometer system works as designed and observed clear peak structure composed of the quasi-elastic K−“n” → K−n and the charge-exchange K−“p” → ¯̅K0n reactions in the forward neutron spectrum.