NURE：一项研究无中微子双贝塔衰变核反应的ERC项目
核实验
2020-02-10 v1
摘要
无中微子双贝塔衰变（0{\nu}\b{eta}\b{eta}）被认为是确定中微子绝对质量标度的最佳潜在途径。此外，若被观测到，它将表明总轻子数不守恒且中微子是其自身的反粒子。目前，这一物理案例是超越标准模型最重要的研究之一，并可能指引通向基本相互作用大统一理论的道路。由于\b{eta}\b{eta}衰变过程涉及原子核，其分析必然隐含核结构问题。0{\nu}\b{eta}\b{eta}衰变率可表示为独立因子的乘积：相空间因子、核矩阵元（NME）以及中微子物种质量的函数。因此，若测得0{\nu}\b{eta}\b{eta}衰变率，对NME的了解可提供关于中微子质量标度的信息。在由欧洲研究委员会起步资助支持的NURE项目中，双电荷交换（DCE）核反应将被用作提取\b{eta}\b{eta} NME信息的工具。在DCE反应与\b{eta}\b{eta}衰变中，初态与末态核相同且跃迁算符具有相似结构。因此，DCE绝对截面的测量可提供关于\b{eta}\b{eta}矩阵元的关键信息。
引用
@article{arxiv.2002.02761,
title = {NURE: An ERC project to study nuclear reactions for neutrinoless double beta decay},
author = {M. Cavallaro and E. Aciksoz and L. Acosta and C. Agodi and N. Auerbach and J. Bellone and R. Bijker and S. Bianco and D. Bonanno and D. Bongiovanni and T. Borello and I. Boztosun and V. Branchina and M. P. Bussa and L. Busso and S. Calabrese and L. Calabretta and A. Calanna and D. Calvo and F. Cappuzzello and D. Carbone and E. R. Chavez Lomeli and M. Colonna and G. D Agostino and N. Deshmuk and P. N. de Faria and C. Ferraresi and J. L. Ferreira and P. Finocchiaro and M. Fisichella and A. Foti and G. Gallo and U. Garcia and G. Giraudo and V. Greco and A. Hacisalihoglu and J. Kotila and F. Iazzi and R. Introzzi and G. Lanzalone and A. Lavagno and F. La Via and J. A. Lay and H. Lenske and R. Linares and G. Litrico and F. Longhitano and D. Lo Presti and J. Lubian and N. Medina and D. R. Mendes and A. Muoio and J. R. B. Oliveira and A. Pakou and L. Pandola and H. Petrascu and F. Pinna and F. Pirri and S. Reito and D. Rifuggiato and M. R. D. Rodrigues and A. D. Russo and G. Russo and G. Santagati and E. Santopinto and O. Sgouros and S. O. Solakci and G. Souliotis and V. Soukeras and D. Torresi and S. Tudisco and R. I. M. Vsevolodovna and R. Wheadon and V. A. B. Zagatto},
journal= {arXiv preprint arXiv:2002.02761},
year = {2020}
}
备注
arXiv admin note: substantial text overlap with arXiv:2001.09657; text overlap with arXiv:2001.09648