Observational Constraints on the Parameters of Hořava–Lifshitz Gravity

IF 2.2 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Annalen der Physik Pub Date : 2024-07-28 DOI:10.1002/andp.202400181

H. Chaudhary, U. Debnath, S. Pacif, Niyaz Uddin Molla, G. Mustafa, S. Maurya

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Abstract

This study investigates the accelerated cosmic expansion within the Hořava–Lifshitz (HL) Model. To constrain the cosmological parameters of this model, 17 Baryon Acoustic Oscillation points, 31 Cosmic Chronometer points, 40 Type Ia Supernovae points, 24 quasar Hubble diagram points, and 162 Gamma Ray Bursts points, along with the latest Hubble constant measurement (R22) are incorporated. is treated as a free parameter to extract and using late‐time datasets, aiming for optimal fitting values in each model. Treating as free improves precision, reduces bias, and enhances dataset compatibility. The obtained values of and are compared to the model, showing consistency with previous estimates from Planck and SDSS studies. The Akaike Information Criterion (AIC) and Bayesian Information Criterion (BIC) favor the Hořava–Lifshitz model, with the model having the lowest AIC. Additionally, and analyses are conducted to assess model preference. Validation using the reduced statistic indicates satisfactory fits for the Hořava–Lifshitz model, while recognizing as the preferred model. Extensions of the analysis warrant further investigation.

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霍扎瓦-利夫希茨引力参数的观测约束

本研究调查了霍热瓦-利夫希茨（HL）模型中的加速宇宙膨胀。为了约束该模型的宇宙学参数，17 个重子声振荡点、31 个宇宙天文台点、40 个 Ia 型超新星点、24 个类星体哈勃图点和 162 个伽马射线暴点，以及最新的哈勃常数测量值（R22）都被纳入其中。在提取和使用晚期数据集时，将其视为自由参数，目的是在每个模型中获得最佳拟合值。将作为自由参数处理可以提高精度，减少偏差，并增强数据集的兼容性。获得的和值与模型进行了比较，结果显示与普朗克和 SDSS 研究之前的估计值一致。阿凯克信息准则（AIC）和贝叶斯信息准则（BIC）都倾向于霍热瓦-利夫希茨模型，该模型的阿凯克信息准则最低。此外，还进行了和分析，以评估模型偏好。使用简化统计量进行的验证表明，Hořava-Lifshitz 模型的拟合效果令人满意，同时被认为是首选模型。该分析的扩展值得进一步研究。

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来源期刊

Annalen der Physik 物理-物理：综合

CiteScore

4.50

自引率

8.30%

发文量

202

审稿时长

3 months

期刊介绍： Annalen der Physik (AdP) is one of the world''s most renowned physics journals with an over 225 years'' tradition of excellence. Based on the fame of seminal papers by Einstein, Planck and many others, the journal is now tuned towards today''s most exciting findings including the annual Nobel Lectures. AdP comprises all areas of physics, with particular emphasis on important, significant and highly relevant results. Topics range from fundamental research to forefront applications including dynamic and interdisciplinary fields. The journal covers theory, simulation and experiment, e.g., but not exclusively, in condensed matter, quantum physics, photonics, materials physics, high energy, gravitation and astrophysics. It welcomes Rapid Research Letters, Original Papers, Review and Feature Articles.

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