论文标题
使用第一个Katrin数据搜索违反Lorentz-Invariance
Search for Lorentz-Invariance Violation with the first KATRIN data
论文作者
论文摘要
粒子物理的标准模型的一些扩展允许Lorentz的不变性和电荷 - 统一时间（CPT）侵入 - 违规行为。在中微子部门中，通过中微子振荡和飞行时间实验已经确定了强大的限制。但是，某些Lorentz-Invariance-violation参数无法通过这些探针访问。在这项工作中，我们专注于参数$（a _ {\ text {of}}}^{（3）}）_ {00} $，$（a _ {\ text {of}}}}^{（3）} {（3）} _ {10}} $（在非异型β的来源中表现出来，作为恒星振荡和光谱终点的整体转移。基于Katrin实验的第一次科学运行的数据，我们将第一个限制设置为$ \ left |（a _ {\ text {of}}}}^{（3）}）_ {11}} \ right | $ of $ <3.7 \ cdot10^{ - 6} $ gev在90 \％\％信心级别。此外，我们在$（a _ {\ text {of}}}^{（3）}）_ {00} $和$（a _ {\ text {of}}}^{（3）}）_ {10} $上得出了新约束。
Some extensions of the Standard Model of Particle Physics allow for Lorentz invariance and Charge-Parity-Time (CPT)-invariance violations. In the neutrino sector strong constraints have been set by neutrino-oscillation and time-of-flight experiments. However, some Lorentz-invariance-violating parameters are not accessible via these probes. In this work, we focus on the parameters $(a_{\text{of}}^{(3)})_{00}$, $(a_{\text{of}}^{(3)})_{10}$ and $(a_{\text{of}}^{(3)})_{11}$ which would manifest themselves in a non-isotropic beta-decaying source as a sidereal oscillation and an overall shift of the spectral endpoint. Based on the data of the first scientific run of the KATRIN experiment, we set the first limit on $\left|(a_{\text{of}}^{(3)})_{11}\right|$ of $< 3.7\cdot10^{-6}$ GeV at 90\% confidence level. Moreover, we derive new constraints on $(a_{\text{of}}^{(3)})_{00}$ and $(a_{\text{of}}^{(3)})_{10}$.
