Measurement of K L 0 flux at the J-PARC neutral-kaon beam line

K. Shiomi, K. Y. Baek, J. Comfort, E. Iwai, N. Kawasaki, J. W. Ko, T. K. Komatsubara, J. W. Lee, G. Y. Lim, Y. Maeda, T. Masuda, D. Naito, Y. Nakaya, H. Nanjo, T. Nomura, M. Sasaki, N. Sasao, K. Sato, T. Shimogawa, Y. SugiyamaY. Tajima, G. Takahashi, M. Togawa, H. Watanabe, T. Yamanaka, Y. Yanagida, H. Y. Yoshida

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We describe the KL0 flux measurements performed at the J-PARC neutral-kaon beam line. This beam line was constructed for an experiment aiming to observe the CP-violating rare decay KL0→ π0νν̄. The primary proton energy was 30 GeV and the KL0 production angle was 16°. Prior to the physics run, the KL0 flux and spectrum were measured by counting KL0→ ππ-π0 decays with a simple setup, which was composed of an electromagnetic calorimeter and a hodoscope system. Results from these measurements are presented and compared with various hadron-interaction simulations.

Original languageEnglish
Pages (from-to)264-271
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume664
Issue number1
DOIs
Publication statusPublished - Feb 1 2012

Keywords

  • J-PARC
  • K production

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Fingerprint Dive into the research topics of 'Measurement of K <sub>L</sub> <sup>0</sup> flux at the J-PARC neutral-kaon beam line'. Together they form a unique fingerprint.

  • Cite this

    Shiomi, K., Baek, K. Y., Comfort, J., Iwai, E., Kawasaki, N., Ko, J. W., Komatsubara, T. K., Lee, J. W., Lim, G. Y., Maeda, Y., Masuda, T., Naito, D., Nakaya, Y., Nanjo, H., Nomura, T., Sasaki, M., Sasao, N., Sato, K., Shimogawa, T., ... Yoshida, H. Y. (2012). Measurement of K L 0 flux at the J-PARC neutral-kaon beam line. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 664(1), 264-271. https://doi.org/10.1016/j.nima.2011.11.010