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Observational cosmology is on the verge of new discoveries that will change the essence of our world-view. The matter concerns origin of initial conditions and physics of dark matter.

Astrophysics · Physics 2010-11-11 V. Lukash

An effective model is used to study the equation of state of warm strange hadronic matter with nucleons, Lambda-hyperons, Xi-hyperons, sigmastar and phi. In the calculation, a newest weak Y-Y interaction deduced from the recent observation…

Nuclear Theory · Physics 2009-11-10 Wei Liang Qian , Ru-Keng Su , Hong Qiu Song

The classical picture of GUT baryogenesis has been strongly modified by theoretical progress concerning two nonperturbative features of the standard model: the phase diagram of the electroweak theory, and baryon and lepton number changing…

High Energy Physics - Phenomenology · Physics 2011-11-10 Wilfried Buchmüller

We calculate deviations in cosmological observables as a function of parameters in a class of connection-based models of quantum gravity. In this theory non-trivial modifications to the background cosmology can occur due to a distortion of…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-01 Michael W. Toomey , Savvas Koushiappas , Bruno Alexandre , João Magueijo

Latent variable models are used to estimate variables of interest quantities which are observable only up to some measurement error. In many studies, such variables are known but not precisely quantifiable (such as "job satisfaction" in…

Machine Learning · Statistics 2012-10-19 Ricardo Silva

My talk described the conformality approach to extending the standard model of particle phenomenology using an assumption of no conformal anomaly at high energy. Topics included quiver gauge theory, the conformality approach to…

High Energy Physics - Phenomenology · Physics 2007-05-23 Paul H. Frampton

Our world is wonderful because of the negligible baryonic part although unknown dark matter and dark energy dominate the Universe. Those nuclei in the daily life are forbidden to fuse by compression due to the Coulomb repulse, nevertheless,…

General Physics · Physics 2013-10-15 Renxin Xu

We consider a minimal supersymmetric extension of the Standard Model, with right-handed neutrinos and local B-L, the difference between baryon and lepton number, a symmetry which is spontaneously broken at the scale of grand unification. To…

High Energy Physics - Phenomenology · Physics 2015-04-09 Wilfried Buchmüller , Valerie Domcke , Kohei Kamada , Kai Schmitz

This manuscript revisits the phenomenological emergent dark energy model (PEDE) by confronting it with recent cosmological data from early and late times. In particular we analyze PEDE model by using the baryon acoustic oscillation (BAO)…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-11 A. Hernández-Almada , M. L. Mendoza-Martínez , Miguel A. García-Aspeitia , V. Motta

The dark energy-cold dark matter paradigm ($\Lambda$CDM) has gained widespread acceptance because it explains the pattern of anisotropies observed in the cosmic microwave background radiation, the observed distribution of large scale…

Astrophysics of Galaxies · Physics 2019-12-03 Robert H. Sanders

In these lectures the present status of the so-called standard cosmological model, based on the hot Big Bang theory and the inflationary paradigm is reviewed. Special emphasis is given to the origin of the cosmological perturbations we see…

High Energy Physics - Phenomenology · Physics 2017-01-26 A. Riotto

Two exotic elements have been introduced into the standard cosmological model: non-baryonic dark matter and dark energy. The success in converting a hypothesis into a solid theory depends strongly on whether we are able to solve the…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-08 Martin Lopez-Corredoira

Recent late-Universe observations suggest an open Universe. If confirmed, such a departure from spatial flatness would carry profound implications for our understanding of cosmic inflation and the ultimate fate of the Universe. Motivated by…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-28 Peng-Ju Wu

In the absence of an exact development of the cosmological models based on the Mashhoon nonlocal gravity, the Newtonian regime clarifies some aspects of it. To improve this model more reliable, going through some semi-Post-Newtonian…

General Relativity and Quantum Cosmology · Physics 2023-11-01 Raihaneh Moti

Forthcoming projects such as the DES, a JDEM, and LSST, aim to measure weak lensing shear correlations with unprecedented accuracy. Weak lensing observables are sensitive to both the distance-redshift relation and the growth of structure in…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 Andrew P. Hearin , Andrew R. Zentner

In this work we investigate the holographic dark energy models with slowly time-varying model parameter defined based on the current Hubble horizon length scale. While the previous studies on the three popular holographic dark energy models…

General Relativity and Quantum Cosmology · Physics 2019-05-07 Mohammad Malekjani , Mehdi Rezaei , Iman A. Akhlaghi

We develop an extension of \textit{the Halo Model} that describes analytically the corrections to the matter power spectrum due to the physics of baryons. We extend these corrections to the weak-lensing shear angular power spectrum. Within…

Cosmology and Nongalactic Astrophysics · Physics 2014-10-28 Irshad Mohammed , Davide Martizzi , Romain Teyssier , Adam Amara

In the standard cosmological model the dark energy (DE) and nonrelativistic (NR) matter densities are observationally determined to be comparable at the present time, in spite of their greatly different evolution histories. This `cosmic…

Cosmology and Nongalactic Astrophysics · Physics 2022-08-30 Meir Shimon

We study quintessence models with a constant (effective) equation of state. It is investigated whether such quintessence models are consistent with a negative spatial curvature of the Universe with respect to the anisotropy of the cosmic…

Astrophysics · Physics 2009-11-07 R. Aurich , F. Steiner

Baryonic matter in the core of a massive and evolved star is compressed significantly to form a supra-nuclear object, and compressed baryonic matter (CBM) is then produced after supernova. The state of cold matter at a few nuclear density…

High Energy Astrophysical Phenomena · Physics 2013-07-23 Yanjun Guo , Renxin Xu
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