U(1) ′ mediated decays of heavy sterile neutrinos in MiniBooNE
U(1)
′ mediated decays of heavy sterile neutrinos in MiniBooNE
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U(1)
DOI：
10.1103/physrevd.99.071701
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发表时间：
2018
影响因子：
5
通讯作者：
M. Ross
中科院分区：
文献类型：
--
作者：
P. Ballett;S. Pascoli;M. Ross
MiniBooNE低能量过剩是一个长期存在的问题，已得到进一步证实
利用新收集的数据进行再分析，目前异常水平为4.8σ。在本文中我们
提出了一种新的解释，主张低能量部门包含Z 0玻色子与GeV规模
质量约为100-500 MeV的惰性中微子。我们表明，这种情况下，
与Z 0形式的MiniBooNE低能量过剩的出色光谱一致性
中性介导
目前生产的重不育状态，其随后衰变到ee-对的一小部分，
被误认为是单电子类电磁簇射。我们的模型在广泛的类别中记录了自己
在新的相互作用下，无菌中微子被充电，允许新的耦合到隐藏的物理模型。除了类电子MiniBooNE签名之外，该模型还预测了LArTPC探测器（如MicroBooNE）中的一种新的低背景信号，该信号由两个可区分的
源自单个顶点的类电子电磁簇射。
The MiniBooNE low-energy excess is a long-standing problem which has received further confirmation
with a reanalysis using newly collected data, with the anomaly now at the 4.8σ level. In this paper we
propose a novel explanation which advocates a low-energy sector containing Z0 bosons with GeV-scale
masses and sterile neutrinos with masses around 100–500 MeV. We show that this scenario provides
excellent spectral agreement with the MiniBooNE low-energy excess in the form of Z0
-mediated neutral
current production of heavy sterile states, a fraction of whose subsequent decay to eþe− pairs are
misidentified as single electronlike electromagnetic showers. Our model inscribes itself in the broad class
of models in which sterile neutrinos are charged under new interactions, allowing new couplings to hiddensector physics. Alongside the electronlike MiniBooNE signature this model also predicts a novel, lowbackground, signal in LArTPC detectors such as MicroBooNE consisting of two distinguishable
electronlike electromagnetic showers originating from a single vertex.
影响因子：
5.4
作者：
Mona Dentler;Álvaro Hernández-Cabezudo;J. Kopp;P. Machado;M. Maltoni;I. Martinez-Soler;T. Schwetz
通讯作者：
Mona Dentler;Álvaro Hernández-Cabezudo;J. Kopp;P. Machado;M. Maltoni;I. Martinez-Soler;T. Schwetz