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Nuclear transition matrix elements for neutrinoless double-β decay of 76Ge within mechanisms involving sterile neutrinos, Majorons and composite neutrinos
International Journal of Modern Physics E ( IF 1.1 ) Pub Date : 2021-01-01 , DOI: 10.1142/s021830132150004x
P. K. Rath 1 , A. Kumar 1 , R. Gautam 2 , R. Chandra 2 , P. K. Raina 3 , B. M. Dixit 4
Affiliation  

Using HFB wave functions generated with a realistic KUO and an empirical JUNE45 effective two-body interactions, nuclear transition matrix elements (NTMEs) [Formula: see text] for the [Formula: see text] transition of neutrinoless double-[Formula: see text] decay of [Formula: see text]Ge isotope are calculated within mechanisms involving sterile neutrinos, Majorons and compositeness scenario. Uncertainties in nuclear transition matrix elements are estimated by calculating sets of 12 NTMEs with these two sets of wave functions, two alternative forms of finite size effects (FNS) and three different parametrizations of short range correlations (SRC). Uncertainties in NTMEs within mechanisms involving sterile neutrinos, Majorons and composite neutrinos turn out to be about 10%–36% depending on the mass of sterile neutrinos, 10% and 37%, respectively.

中文翻译:

在涉及无菌中微子、Majorons 和复合中微子的机制中,用于 76Ge 的无中微子双 β 衰变的核过渡基质元素

使用由现实 KUO 和经验 JUNE45 有效二体相互作用生成的 HFB 波函数,核过渡矩阵元素 (NTME) [公式:见文本] 用于 [公式:见文本] 无中微子双的跃迁-[公式:见文本] 衰变 [公式:见正文] Ge 同位素是在涉及无菌中微子、马约子和复合性情景的机制内计算的。通过使用这两组波函数、两种替代形式的有限尺寸效应 (FNS) 和三种不同的短程相关性 (SRC) 参数化计算 12 个 NTME 的集合来估计核过渡矩阵元素的不确定性。在涉及无菌中微子、马约子和复合中微子的机制中,NTME 的不确定性分别为 10% 和 36%,具体取决于无菌中微子的质量,分别为 10% 和 37%。
更新日期:2021-01-01
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