Running vacuum against the H <sub>0</sub> and ?<sub>8</sub> tensions

نویسندگان

چکیده

The cosmological term, $\Lambda$, was introduced $104$ years ago by Einstein in his gravitational field equations. Whether $\Lambda$ is a rigid quantity or dynamical variable cosmology has been matter of debate for many years, especially after the introduction general notion dark energy (DE). associated to vacuum density, $\rho_{\rm vac}$, and one may expect that it evolves slowly with expansion. Herein we present devoted study testing this possibility using promising class running models (RVM's). We use large string $SNIa+BAO+H(z)+LSS+CMB$ modern data, which first time CMB part involves full Planck 2018 likelihood these models. test dependence results on threshold redshift $z_*$ at dynamics activated recent past find positive signals up $\sim4.0\sigma$ $z_*\simeq 1$. RVM's prove very competitive against standard $\Lambda$CDM model give handle solving $\sigma_8$ tension alleviating $H_0$ one.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Ratio of Tensions from Vacuum String Field Theory

We show analytically that the ratio of the norm of sliver states agrees with the ratio of D-brane tensions. We find that the correct ratio appears as a twist anomaly.

متن کامل

Sociocultural theory 1 Unresolved tensions in sociocultural theory: Analogies with contemporary sociological debates Running head: UNRESOLVED TENSIONS IN SOCIOCULTURAL THEORY

Socioculturalists are divided on two of the foundational theoretical claims of the paradigm: a process ontology of the social world, and the inseparability of the individual and the group. A process ontology holds that only processes are real; entities, structures, or patterns are ephemeral and do not really exist. Inseparability is the claim that the individual and the social cannot be methodo...

متن کامل

Litmus: Running Tests against Hardware

Shared memory multiprocessors typically expose subtle, poorly understood and poorly specified relaxed-memory semantics to programmers. To understand them, and to develop formal models to use in program verification, we find it essential to take an empirical approach, testing what results parallel programs can actually produce when executed on the hardware. We describe a key ingredient of our ap...

متن کامل

Carbohydrate and the cytokine response to 2.5 h of running.

This randomized, double-blind, placebo-controlled study was designed to determine the influence of 6% carbohydrate (C) vs. placebo (P) beverage ingestion on cytokine responses (5 total samples over 9 h) to 2.5 h of high-intensity running (76.7 +/- 0.4% maximal O2 uptake) by 30 experienced marathon runners. For interleukin-6 (IL-6), a difference in the pattern of change between groups was found,...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: EPL

سال: 2021

ISSN: ['0295-5075', '1286-4854']

DOI: https://doi.org/10.1209/0295-5075/134/19001