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arXiv 2201.05108hep-phhep-ex
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波包分离对低能无菌中微子对撞机的影响

Impact of Wave Packet Separation in Low-Energy Sterile Neutrino Searches

Carlos A. Argüelles, Toni Bertólez-Martínez, Jordi Salvado

摘要:

短基线中微子实验中观测到的异常现象激发了轻无菌中微子的产生,其中,放射源实验和反应堆实验分别为电子中微子消失和eV尺度中微子消失提供了证据和限制。这些观察的结果似乎相互矛盾。这封信集中提出了中微子波包可以近似为平面波的假设,这是在所有此类实验的分析中采用的假设。我们证明,阻尼振荡,例如,由于有限的波包大小,解决了这些电子味观测和约束之间的张力。

英文摘要:

Light sterile neutrinos have been motivated by anomalies observed in short-baseline neutrino experiments.Among them, radioactive-source and reactor experiments have provided evidence and constraints, respectively, for electron neutrino disappearance compatible with an eV-scale neutrino. The results from these observations are seemingly in conflict. This letter brings into focus the assumption that the neutrino wave packet can be approximated as a plane wave, which is adopted in all analyses of such experiments. We demonstrate that the damping of oscillations, e.g., due to a finite wave packet size, solve the tension between these electron-flavor observations and constraints.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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