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arXiv 2106.05904hep-phgr-qc
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相对论形变运动学中的粒子-反粒子不对称性

Particle-antiparticle asymmetry in a relativistic deformed kinematics

José Manuel Carmona, José Luis Cortés, José Javier Relancio

摘要:

相对论变形运动学通常被认为是一种捕获基本量子引力理论残余效应的方法。这些运动学提出了动量的非对易加法定律,因此多粒子系统的总动量取决于动量组成的特定顺序。我们探讨在目前的工作中,如何使用此属性可以通过一个特定的订购处方,产生粒子和反粒子之间的不对称性,导致违反CPT对称性。我们研究其后果μ子衰变,获得不同的粒子和反粒子的寿命作为新的高能量尺度参数化这样一个相对论变形运动学的函数。

英文摘要:

Relativistic deformed kinematics are usually considered as a way to capture residual effects of a fundamental quantum gravity theory. These kinematics present a non-commutative addition law for the momenta, so that the total momentum of a multi-particle system depends on the specific ordering in which the momenta are composed. We explore in the present work how this property may be used to generate an asymmetry between particles and antiparticles through a particular ordering prescription, resulting in a violation of CPT symmetry. We study its consequences for muon decay, obtaining a difference in the lifetimes of the particle and the antiparticle as a function the new high-energy scale parameterizing such a relativistic deformed kinematics.

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