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.
|Number of pages||8|
|Journal||Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment|
|Publication status||Published - Feb 1 2012|
- K production
ASJC Scopus subject areas
- Nuclear and High Energy Physics