Measurement of KL0 flux at the J-PARC neutral-kaon beam line

Autor: Hajime Nanjo, K. Sato, Y. Sugiyama, Hiroshi Watanabe, Tetsushi Shimogawa, Y. Nakaya, G.Y. Lim, G. Takahashi, Noboru Sasao, K.Y. Baek, T. Yamanaka, J. R. Comfort, J. W. Ko, Takahiko Masuda, Toru Nomura, K. Shiomi, Misao Sasaki, Hiroshi Yoshida, N. Kawasaki, Y. Yanagida, D. Naito, Yasuhisa Tajima, Yusuke T. Maeda, E. Iwai, Jongmin Lee, T. K. Komatsubara, Manabu Togawa
Rok vydání: 2012
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 664:264-271
ISSN: 0168-9002
Popis: We describe the K L 0 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 K L 0 → π 0 ν ν ¯ . The primary proton energy was 30 GeV and the K L 0 production angle was 16°. Prior to the physics run, the K L 0 flux and spectrum were measured by counting K L 0 → π + π − π 0 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.
Databáze: OpenAIRE