Status and prospects for CPT and Lorentz invariance violation searches in neutral meson mixing

被引：18

作者：

van Tilburg, Jeroen ^{[1
]}

van Veghel, Maarten ^{[1
]}

机构：

[1] Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands

来源：

PHYSICS LETTERS B | 2015年 / 742卷

关键词：

ASYMMETRY; TESTS;

D O I：

10.1016/j.physletb.2015.01.036

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An overview of current experimental bounds on CPT violation in neutral meson mixing is given. New values for the CPT asymmetry in the B-0 and B-s(0) systems are deduced from published BaBar, Belle and LHCb results. With dedicated analyses, LHCb will be able to further improve the bounds on CPT violation in the D-0, B-0 and B-s(0) systems. Since CPT violation implies violation of Lorentz invariance in an interacting local quantum field theory, the observed CPT asymmetry will exhibit sidereal-and boost-dependent variations. Such CPT-violating and Lorentz-violating effects are accommodated in the framework of the Standard Model Extension (SME). The large boost of the neutral mesons produced at LHCb results in a high sensitivity to the corresponding SME coefficients. For the B-0 and B-s(0) systems, using existing LHCb results, we determine with high precision the SME coefficients that are not varying with sidereal time. With a full sidereal analysis, LHCb will be able to improve the existing SME bounds in the D-0, B-0 and B-s(0) systems by up to two orders of magnitude. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.

引用

页码：236 / 241

页数：6

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