Bilateral Constraints on Proton Lorentz Violation Effects

Since the early reports of events beyond the Greisen–Zatsepin–Kuzmin (GZK) cutoff, the investigation of ultrahigh-energy cosmic rays has emerged as a fundamental method for testing Lorentz invariance violation (LV) effects. Recent advances in observational capabilities have resulted in more stringen...

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Main Authors: Ping He, Bo-Qiang Ma
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal
Subjects:
Online Access:https://doi.org/10.3847/1538-4357/adad6c
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author Ping He
Bo-Qiang Ma
author_facet Ping He
Bo-Qiang Ma
author_sort Ping He
collection DOAJ
description Since the early reports of events beyond the Greisen–Zatsepin–Kuzmin (GZK) cutoff, the investigation of ultrahigh-energy cosmic rays has emerged as a fundamental method for testing Lorentz invariance violation (LV) effects. Recent advances in observational capabilities have resulted in more stringent constraints on LV parameters. This study delves into the potentially anomalous phenomena arising from subluminal and superluminal LV effects, encompassing aspects such as proton decay and atypical threshold behavior of photo-pion production from protons within the GZK region. High-energy proton observations via cosmic rays have imposed stringent constraints on superluminal proton LV effects, while the confirmation of the GZK cutoff has established a robust boundary for the anomalous phenomena associated with subluminal proton LV effects. The research provides rigorously bilateral constraints on proton LV effects from both subluminal and superluminal standpoints.
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series The Astrophysical Journal
spelling doaj-art-3a0831bb6c4346ca8e051009f30f97ee2025-08-20T02:03:36ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-0198114510.3847/1538-4357/adad6cBilateral Constraints on Proton Lorentz Violation EffectsPing He0https://orcid.org/0000-0003-1935-4178Bo-Qiang Ma1https://orcid.org/0000-0002-5660-1070School of Physics, Peking University , Beijing 100871, People’s Republic of China ; mabq@pku.edu.cnSchool of Physics, Peking University , Beijing 100871, People’s Republic of China ; mabq@pku.edu.cn; Center for High Energy Physics, Peking University , Beijing 100871, People’s Republic of China; School of Physics, Zhengzhou University , Zhengzhou 450001, People’s Republic of ChinaSince the early reports of events beyond the Greisen–Zatsepin–Kuzmin (GZK) cutoff, the investigation of ultrahigh-energy cosmic rays has emerged as a fundamental method for testing Lorentz invariance violation (LV) effects. Recent advances in observational capabilities have resulted in more stringent constraints on LV parameters. This study delves into the potentially anomalous phenomena arising from subluminal and superluminal LV effects, encompassing aspects such as proton decay and atypical threshold behavior of photo-pion production from protons within the GZK region. High-energy proton observations via cosmic rays have imposed stringent constraints on superluminal proton LV effects, while the confirmation of the GZK cutoff has established a robust boundary for the anomalous phenomena associated with subluminal proton LV effects. The research provides rigorously bilateral constraints on proton LV effects from both subluminal and superluminal standpoints.https://doi.org/10.3847/1538-4357/adad6cParticle astrophysicsCosmic raysParticle physicsHigh energy astrophysics
spellingShingle Ping He
Bo-Qiang Ma
Bilateral Constraints on Proton Lorentz Violation Effects
The Astrophysical Journal
Particle astrophysics
Cosmic rays
Particle physics
High energy astrophysics
title Bilateral Constraints on Proton Lorentz Violation Effects
title_full Bilateral Constraints on Proton Lorentz Violation Effects
title_fullStr Bilateral Constraints on Proton Lorentz Violation Effects
title_full_unstemmed Bilateral Constraints on Proton Lorentz Violation Effects
title_short Bilateral Constraints on Proton Lorentz Violation Effects
title_sort bilateral constraints on proton lorentz violation effects
topic Particle astrophysics
Cosmic rays
Particle physics
High energy astrophysics
url https://doi.org/10.3847/1538-4357/adad6c
work_keys_str_mv AT pinghe bilateralconstraintsonprotonlorentzviolationeffects
AT boqiangma bilateralconstraintsonprotonlorentzviolationeffects