利用过热液体区分核反冲与α粒子
仪器与探测器
2008-11-26 v2 高能物理 - 实验
摘要
PICASSO 合作组首次观测到基于过热液体的探测器中，中子和α粒子诱发的声学信号之间存在显著差异。这一新发现为改进本底抑制提供了可能性，并且可能对暗物质实验特别有用。这种新效应可能归因于α粒子径迹上形成多个气泡，而中子诱发的反冲则产生单个成核点。
引用
@article{arxiv.0807.1536,
title = {Discrimination of nuclear recoils from alpha particles with superheated liquids},
author = {F. Aubin and M. Auger and E. Behnke and B. Beltran and K. Clark and X. Dai and A. Davour and M. -H. Genest and G. Giroux and R. Gornea and R. Faust and C. B. Krauss and C. Leroy and L. Lessard and I. Levine and C. Levy and J. -P. Martin and T. Morlat and A. J. Noble and P. Nadeau and M. -C. Piro and S. Pospisil and T. Shepherd and J. Sodomka and N. Starinski and I. Stekl and C. Storey and U. Wichoski and V. Zacek},
journal= {arXiv preprint arXiv:0807.1536},
year = {2008}
}
备注
7 pages, 4 figures. accepted for publication in New Journal of Physics