CUORE 对无中微子双贝塔衰变的灵敏度与发现潜力
核实验
2013-03-21 v3 高能物理 - 实验
高能物理 - 唯象学
摘要
我们展示了对 CUORE 的灵敏度与发现潜力的研究。CUORE 是一个正在意大利格兰萨索国家实验室建造的、基于量热法的双贝塔衰变实验。我们给出了针对不同本底情形计算实验灵敏度的两种方法，并讨论了将灵敏度公式推广到发现潜力情形。假设本底率为 cts/(keV kg y)，我们发现，在 5 年活时间后，CUORE 对无中微子双贝塔衰变半衰期的 1 sigma 灵敏度为 y，因此有潜力将有效马约拉纳中微子质量探测至 40-100 meV；对应于 90% 置信水平的 1.64 sigma 灵敏度将为 y。我们将这一范围与在 Ge 中观测到无中微子双贝塔衰变的声称以及来自振荡结果的中微子质量参数空间偏好范围进行了比较。
引用
@article{arxiv.1109.0494,
title = {Sensitivity and Discovery Potential of CUORE to Neutrinoless Double-Beta Decay},
author = {F. Alessandria and R. Ardito and D. R. Artusa and F. T. Avignone and O. Azzolini and M. Balata and T. I. Banks and G. Bari and J. Beeman and F. Bellini and A. Bersani and M. Biassoni and T. Bloxham and C. Brofferio and C. Bucci and X. Z. Cai and L. Canonica and X. Cao and S. Capelli and L. Carbone and L. Cardani and M. Carrettoni and N. Casali and D. Chiesa and N. Chott and M. Clemenza and C. Cosmelli and O. Cremonesi and R. J. Creswick and I. Dafinei and A. Dally and V. Datskov and A. De Biasi and M. M. Deninno and S. Di Domizio and M. L. di Vacri and L. Ejzak and R. Faccini and D. Q. Fang and H. A. Farach and M. Faverzani and G. Fernandes and E. Ferri and F. Ferroni and E. Fiorini and M. A. Franceschi and S. J. Freedman and B. K. Fujikawa and A. Giachero and L. Gironi and A. Giuliani and J. Goett and P. Gorla and C. Gotti and E. Guardincerri and T. D. Gutierrez and E. E. Haller and K. Han and K. M. Heeger and H. Z. Huang and R. Kadel and K. Kazkaz and G. Keppel and L. Kogler and Yu. G. Kolomensky and D. Lenz and Y. L. Li and C. Ligi and X. Liu and Y. G. Ma and C. Maiano and M. Maino and M. Martinez and R. H. Maruyama and Y. Mei and N. Moggi and S. Morganti and T. Napolitano and S. Newman and S. Nisi and C. Nones and E. B. Norman and A. Nucciotti and T. O'Donnell and F. Orio and D. Orlandi and J. L. Ouellet and M. Pallavicini and V. Palmieri and L. Pattavina and M. Pavan and M. Pedretti and G. Pessina and G. Piperno and S. Pirro and E. Previtali and V. Rampazzo and F. Rimondi and C. Rosenfeld and C. Rusconi and E. Sala and S. Sangiorgio and N. D. Scielzo and M. Sisti and A. R. Smith and F. Stivanello and L. Taffarello and M. Tenconi and W. D. Tian and C. Tomei and S. Trentalange and G. Ventura and M. Vignati and B. S. Wang and H. W. Wang and T. Wise and A. Woodcraft and L. Zanotti and C. Zarra and B. X. Zhu and S. Zucchelli},
journal= {arXiv preprint arXiv:1109.0494},
year = {2013}
}
备注
14 pages, 6 figures, revision for new submission to Astroparticle Physics