博雷西诺I期的太阳中微子物理
高能物理 - 实验
2012-05-15 v1 太阳与恒星天体物理
摘要
博雷西诺是安装在意大利格兰萨索国家实验室地下大厅的大型液体闪烁体探测器。经过数年的建设，数据采集于2007年5月开始。博雷西诺I期在约三年的数据采集后结束。博雷西诺首次以优于5%的精度实时测量了Be太阳中微子相互作用率，并以1.4%的精度确认了其昼夜不对称性的缺失。仅博雷西诺的这一结果就以超过8.5置信水平排除了太阳中微子振荡参数的LOW区域。结合其他太阳中微子数据，博雷西诺的测量在不假设中微子扇区CPT不变性的情况下，孤立出了中微子振荡的MSW-LMA解。博雷西诺还直接观测到了1.0-1.5 MeV能量范围内的太阳中微子，从而首次直接证明了太阳中微子信号，并给出了迄今为止对CNO太阳中微子通量的最强约束。博雷西诺以3 MeV能量阈值测量了太阳B中微子率。
引用
@article{arxiv.1205.2989,
title = {Solar neutrino physics with Borexino I},
author = {L. Ludhova and G. Bellini and J. Benziger and D. Bick and G. Bonfini and D. Bravo and M. Buizza Avanzini and B. Caccianiga and L. Cadonati and F. Calaprice and C. Carraro and P. Cavalcante and A. Chavarria and D. D'Angelo and S. Davini and A. Derbin and A. Etenko and K. Fomenko and D. Franco and C. Galbiati and S. Gazzana and C. Ghiano and M. Giammarchi and M. Goeger-Nef and A. Goretti and L. Grandi and E. Guardincerri and S. Hardy and Aldo Ianni and Andrea Ianni and A. Kayunov and V. Kobychev and D. Korablev and G. Korga and Y. Koshio and D. Kryn and M. Laubenstein and T. Lewke and E. Litvinovich and B. Loer and F. Lombardi and P. Lombardi and I. Machulin and S. Manecki and W. Maneschg and G. Manuzio and Q. Meindl and E. Meroni and L. Miramonti and M. Misiaszek and D. Montanari and P. Mosteiro and V. Muratova and L. Oberauer and M. Obolenksy and F. Ortica and K. Otis and M. Pallavicini and L. Papp and L. Perasso and S. Perasso and A. Pocar and R. S. Raghavan and G. Ranucci and A. Razeto and A. Re and P. A. Romani and A. Sabelnikov and R. Saldanha and C. Salvo and S. Schoenert and H. Simgen and M. Skorokhvatov and O. Smirnov and A. Sotnikov and S. Sukhotin and Y. Suvorov and R. Tartaglia and G. Testera and D. Vignaud and R. B. Vogelaar and F. Von Feilitzsch and J. Winter and M. Wojcik and A. Wright and M. Wurm and J. Xu and O. Zaimidoroga and S. Zavatarelli and G. Zuzel},
journal= {arXiv preprint arXiv:1205.2989},
year = {2012}
}
备注
6 pages, 4 figures, proceedings to Moriond 2012 EW session