Search for effective Lorentz and C P T violation using ZEUS data
Search for effective Lorentz and C P T violation using ZEUS data
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使用 ZEUS 数据搜索有效的洛伦兹和 C P T 违规
DOI：
10.1103/physrevd.107.092008
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发表时间：
2023
影响因子：
5
通讯作者：
Abt I
中科院分区：
文献类型：
--
作者：
Abt I
在使用ZEUSdata的有效场论背景下，研究了标准模型中夸克扇区的洛伦兹和对称性。对称性破坏效应会导致与时间无关的观测值的时间相关振荡，包括散射截面。利用5年的包含中性电流的深度非弹性散射事件进行了分析，这些事件对应于集成的HERA亮度。在统计和系统的不确定性范围内，没有观测到恒星时间振荡的证据。大多数约束是第一次被放置在42个系数上，参数化了光夸克的传播和相互作用的显性-偶数维- 4和奇维- 5自旋无关的修改。
Lorentz andsymmetry in the quark sector of the Standard Model are studied in the context of an effective field theory using ZEUSdata. Symmetry-violating effects can lead to time-dependent oscillations of otherwise time-independent observables, including scattering cross sections. An analysis using five years of inclusive neutral-current deep inelastic scattering events corresponding to an integrated HERA luminosity ofathas been performed. No evidence for oscillations in sidereal time has been observed within statistical and systematic uncertainties. Constraints, most for the first time, are placed on 42 coefficients parametrizing dominant-even dimension-four and-odd dimension-five spin-independent modifications to the propagation and interaction of light quarks.