Neutrino physics opportunities with the IsoDAR source at Yemilab
Neutrino physics opportunities with the IsoDAR source at Yemilab
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DOI：
10.1103/physrevd.105.052009
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发表时间：
2022-03-28
影响因子：
5
通讯作者：
Winklehner, D.
中科院分区：
文献类型：
--
作者：
Alonso, J.;Arguelles, C. A.;Winklehner, D.
IsoDAR寻求放置一个高功率回旋加速器和目标组合，作为(nu) / bar (e)的强烈来源，其水平类似于10(23)/年，接近千吨尺度的中微子探测器，以便获得对极短基线中微子振荡((nu) / bar (e) -> (nu) / bar (e))的灵敏度，并对弱相互作用进行精确测试，以及其他物理机会。最近，IsoDAR与韩国Yemi地下实验室（Yemilab）的2.26吨级目标体积液体闪烁探测器在17米的中心对中心基线上进行配对，初步获得批准，IsoDAR的洞穴挖掘工作已经完成。在本文中，我们从对振荡的敏感性(通过逆β衰变，IBD; (nu) / bar （e) + p -> e(+) + n）和弱混合角(通过原子电子的弹性散射，(nu) / bar (e) + e(-) -> (nu) / bar （e) + e(-)）的角度介绍了IsoDAR@Yemilab的物理能力。我们还介绍了IsoDAR对新粒子的灵敏度的研究，例如靶中产生的轻X玻色子，它衰变为nu(e)(nu) / bar (e)。
IsoDAR seeks to place a high-power-cyclotron and target combination, as an intense source of (nu) over bar (e) at the level of similar to 10(23)/year, close to a kiloton-scale neutrino detector in order to gain sensitivity to very short-baseline neutrino oscillations ((nu) over bar (e )-> (nu) over bar (e)) and perform precision tests of the weak interaction, among other physics opportunities. Recently, IsoDAR has received preliminary approval to be paired with the 2.26 kton target volume liquid scintillator detector at the Yemi Underground Laboratory (Yemilab) in Korea, at a 17 m center-to-center baseline, and cavern excavation for IsoDAR is now complete. In this paper, we present the physics capabilities of IsoDAR@Yemilab in terms of sensitivity to oscillations (via inverse beta decay, IBD; (nu) over bar (e )+ p -> e(+) + n), including initial-state wave packet effects, and the weak mixing angle (via elastic scattering off atomic electrons, (nu) over bar (e )+ e(- )-> (nu) over bar (e) + e(-)). We also introduce a study of IsoDAR sensitivity to new particles, such as a light X boson, produced in the target that decays to nu(e)(nu) over bar (e).