New Constraint for Isotropic Lorentz Violation from LHC Data

被引：1

作者：

Amram, David ^{[1
]}

Bouzoud, Killian ^{[2
]}

Chanon, Nicolas ^{[1
]}

Hansen, Hubert ^{[1
]}

Ribeiro Jr, Marcos R. ^{[3
]}

Schreck, Marco ^{[4
]}

机构：

[1] Univ Lyon, Univ Claude Bernard Lyon 1, IP2I Lyon, CNRS,IN2P3,UMR 5822, Villeurbanne, France

[2] Nantes Univ, SUBATECH, IMT Atlantique, IN2P3,CNRS, 4 Rue Alfred Kastler,La Chantrerie BP 20722, F-44307 Nantes, France

[3] Univ Sao Paulo, Inst Fis, Cidade Univ, BR-05508090 Sao Paulo, SP, Brazil

[4] Univ Fed Maranhao, Dept Fis, Campus Univ Bacanga, BR-65080805 Sao Luis, MA, Brazil

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 132卷 / 21期

关键词：

CPT VIOLATION; HIGH-ENERGY; RAY; STRINGS;

D O I：

10.1103/PhysRevLett.132.211801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

New calculations for the kinematics of photon decay to fermions in vacuo under an isotropic violation of Lorentz invariance (LV), parametrized by the standard-model extension, are presented in this Letter and used to interpret prompt photon production in LHC data. The measurement of inclusive prompt photon production at the LHC Run 2, with photons observed up to a transverse energy of 2.5 TeV, provides the lower bound kappa(tr) > -1.06 x 10(-13) on the isotropic coefficient kappa(tr) at 95% confidence level. This result improves over the previous bound from hadron colliders by a factor of 55. The calculations for the kinematics of photon decay have further potential use to constrain LV coefficients from the appearance of fermion pairs.

引用

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