DarkSide-10 中的光产额：一种用于暗物质搜寻的双相液氩时间投影室原型
天体物理仪器与方法
2015-06-04 v2 高能物理 - 实验
摘要
作为利用液氩时间投影室（TPC）进行直接暗物质搜寻的 DarkSide 计划的一部分，我们在意大利格兰萨索国家实验室（Gran Sasso National Laboratory）地下建造并运行了一种活性体积包含 10 kg 液氩的原型探测器 DarkSide-10。对于此类装置，闪烁光产额是一个至关重要的参数，因为光子统计限制了通过脉冲形状甄别排除电子反冲本底的能力。我们利用伽马射线源产生的易于识别的全吸收峰，结合低占用率激光脉冲的单光电子标定，测量了 DarkSide-10 的光产额。对于能量范围在 122-1275 keV 的伽马谱线，我们得到一致的光产额，平均值为 8.887±0.003(stat)±0.444(sys) p.e./keVee。经过额外的纯化后，在 511 keV 处测得的光产额增加至 9.142±0.006(stat) p.e./keVee。
引用
@article{arxiv.1204.6218,
title = {Light Yield in DarkSide-10: a Prototype Two-phase Liquid Argon TPC for Dark Matter Searches},
author = {T. Alexander and D. Alton and K. Arisaka and H. O. Back and P. Beltrame and J. Benziger and G. Bonfini and A. Brigatti and J. Brodsky and L. Cadonati and F. Calaprice and A. Candela and H. Cao and P. Cavalcante and A. Chavarria and A. Chepurnov and D. Cline and A. G. Cocco and C. Condon and D. D'Angelo and S. Davini and E. De Haas and A. Derbin and G. Di Pietro and I. Dratchnev and D. Durben and A. Empl and A. Etenko and A. Fan and G. Fiorillo and K. Fomenko and F. Gabriele and C. Galbiati and S. Gazzana and C. Ghag and C. Ghiano and A. Goretti and L. Grandi and M. Gromov and M. Guan and C. Guo and G. Guray and E. V. Hungerford and Al. Ianni and An. Ianni and A. Kayunov and K. Keeter and C. Kendziora and S. Kidner and V. Kobychev and G. Koh and D. Korablev and G. Korga and E. Shields and P. Li and B. Loer and P. Lombardi and C. Love and L. Ludhova and L. Lukyanchenko and A. Lund and K. Lung and Y. Ma and I. Machulin and J. Maricic and C. J. Martoff and Y. Meng and E. Meroni and P. D. Meyers and T. Mohayai and D. Montanari and M. Montuschi and P. Mosteiro and B. Mount and V. Muratova and A. Nelson and A. Nemtzow and N. Nurakhov and M. Orsini and F. Ortica and M. Pallavicini and E. Pantic and S. Parmeggiano and R. Parsells and N. Pelliccia and L. Perasso and F. Perfetto and L. Pinsky and A. Pocar and S. Pordes and G. Ranucci and A. Razeto and A. Romani and N. Rossi and P. Saggese and R. Saldanha and C. Salvo and W. Sands and M. Seigar and D. Semenov and M. Skorokhvatov and O. Smirnov and A. Sotnikov and S. Sukhotin and Y. Suvorov and R. Tartaglia and J. Tatarowicz and G. Testera and A. Teymourian and J. Thompson and E. Unzhakov and R. B. Vogelaar and H. Wang and S. Westerdale and M. Wojcik and A. Wright and J. Xu and C. Yang and S. Zavatarelli and M. Zehfus and W. Zhong and G. Zuzel},
journal= {arXiv preprint arXiv:1204.6218},
year = {2015}
}
备注
10 pages, 7 figures, Accepted for publication in Astroparticle Physics