by NAGAKURA, Naoki, Hirota, Katsura, Ieki, Sei, Ino, Takashi, Iwashita, Yoshihisa, Kitaguchi, Masaaki, Kitahara, Ryunosuke, Mishima, Kenji, Morishita, Aya, Oide, Hideyuki, Otono, Hideyoshi, Sakakibara, Risa, Seki, Yoshichika, Gugino, Tomoaki, Sumi, Naoyuki, Sumino, Hirochika, Taketani, Karol, Tanaka, Genki, TOMITA, Tatsuhiko, Yamada, Takahito, Yamashita, Satoru, Yokohashi, Mami, Yoshioka, Tamaki, Shima, Tatsushi and Shimizu, Hirohiko M
Abstract:
The neutron lifetime is one of the basic parameters in the weak interaction, and is used for predicting the light element abundance in the early universe. Our group developed a new setup to measure the lifetime with the goal precision of 0.1% at the polarized beam branch BL05 of MLF, J-PARC. The commissioning data was acquired in 2014 and 2015, and the first set of data to evaluate the lifetime in 2016, which is expected to yield a statistical uncertainty of O(1)%. This paper presents the current analysis results and the future plans to achieve our goal precision.
Reference:
NAGAKURA, Naoki, Hirota, Katsura, Ieki, Sei, Ino, Takashi, Iwashita, Yoshihisa, Kitaguchi, Masaaki, Kitahara, Ryunosuke, Mishima, Kenji, Morishita, Aya, Oide, Hideyuki, Otono, Hideyoshi, Sakakibara, Risa, Seki, Yoshichika, Gugino, Tomoaki, Sumi, Naoyuki, Sumino, Hirochika, Taketani, Karol, Tanaka, Genki, TOMITA, Tatsuhiko, Yamada, Takahito, Yamashita, Satoru, Yokohashi, Mami, Yoshioka, Tamaki, Shima, Tatsushi and Shimizu, Hirohiko M, "Precise Neutron Lifetime Experiment Using Pulsed Neutron Beams At J-PARC", In Proceedings of The 26th International Nuclear Physics Conference — PoS(INPC2016), Sissa Medialab, Trieste, Italy, pp. 191, 2017.
Bibtex Entry:
@inproceedings{Nagakura2017,
abstract = {The neutron lifetime is one of the basic parameters in the weak interaction, and is used for predicting the light element abundance in the early universe. Our group developed a new setup to measure the lifetime with the goal precision of 0.1% at the polarized beam branch BL05 of MLF, J-PARC. The commissioning data was acquired in 2014 and 2015, and the first set of data to evaluate the lifetime in 2016, which is expected to yield a statistical uncertainty of O(1)%. This paper presents the current analysis results and the future plans to achieve our goal precision.},
address = {Trieste, Italy},
author = {NAGAKURA, Naoki and Hirota, Katsura and Ieki, Sei and Ino, Takashi and Iwashita, Yoshihisa and Kitaguchi, Masaaki and Kitahara, Ryunosuke and Mishima, Kenji and Morishita, Aya and Oide, Hideyuki and Otono, Hideyoshi and Sakakibara, Risa and Seki, Yoshichika and Gugino, Tomoaki and Sumi, Naoyuki and Sumino, Hirochika and Taketani, Karol and Tanaka, Genki and TOMITA, Tatsuhiko and Yamada, Takahito and Yamashita, Satoru and Yokohashi, Mami and Yoshioka, Tamaki and Shima, Tatsushi and Shimizu, Hirohiko M},
booktitle = {Proceedings of The 26th International Nuclear Physics Conference — PoS(INPC2016)},
doi = {10.22323/1.281.0191},
month = {may},
pages = {191},
publisher = {Sissa Medialab},
title = {{Precise Neutron Lifetime Experiment Using Pulsed Neutron Beams At J-PARC}},
url = {https://pos.sissa.it/281/191},
volume = {INPC2016},
year = {2017}
}