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相关论文: Analogies between nuclear physics and Dark Matter

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The effective field theory of dark energy is generalized to incorporate dark matter, which is modelled using a complex scalar field with a global $U(1)$ symmetry. The dark matter model used here has similarities to models of ultralight…

广义相对论与量子宇宙学 · 物理学 2019-06-05 Sina Bahrami

Recent observations from PAMELA, FERMI, and ATIC point to a new source of high energy cosmic rays. If these signals are due to annihilating dark matter, then the annihilation cross section in the present day must be substantially larger…

高能物理 - 唯象学 · 物理学 2014-11-20 Matthew R. Buckley Patrick J. Fox

A field theory is proposed where the regular fermionic matter and the dark fermionic matter can be different states of the same "primordial" fermion fields. In regime of the fermion densities typical for normal particle physics, the…

高能物理 - 理论 · 物理学 2009-11-10 E. I. Guendelman , A. B. Kaganovich

Cosmology with a three-form field interacting with cold dark matter is considered. In particular, the mass of the dark matter particles is assumed to depend upon the amplitude of the three-form field invariant. In comparison to coupled…

宇宙学与河外天体物理 · 物理学 2015-06-12 Tomi S. Koivisto , Nelson J. Nunes

The paper aims to consider the electromagnetic adjoint-field in the complex octonion space as the dark matter field, describing some properties of dark matter, especially the origin, particle category, existence region, and force and so…

综合物理 · 物理学 2016-01-21 Zi-Hua Weng

We consider a simple class of models in which the dark matter, X, is coupled to a new gauge boson, phi, with a relatively low mass (m_phi \sim 100 MeV-3 GeV). Neither the dark matter nor the new gauge boson have tree-level couplings to the…

高能物理 - 唯象学 · 物理学 2013-05-30 Dan Hooper , Neal Weiner , Wei Xue

The minimal dark matter model is given a supersymmetric extension. A super SU(2)L quintuplet is introduced with its fermionic neutral component still being the dark matter, the dark matter particle mass is about 19.7 GeV. Mass splitting…

高能物理 - 唯象学 · 物理学 2015-06-04 Xue Chang , Chun Liu , Feng-Cai Ma , Shuo Yang

The properties of a spherically symmetric static space-time permeated of dark energy are worked out. Dark energy is viewed as the strain energy of an elastically deformable four dimensional manifold. The metric is worked out in the vacuum…

广义相对论与量子宇宙学 · 物理学 2015-06-04 N. Radicella , M. Sereno , A. Tartaglia

We explore the connection between pair production of dark matter particles at collider experiments and annihilation of dark matter in the early and late universe, with a focus on the correlation between the two time-reversed processes. We…

高能物理 - 唯象学 · 物理学 2013-07-25 Stefano Profumo , William Shepherd , Tim Tait

We investigate neutrino magnetic moment, triplet scalar dark matter in a Type-II radiative seesaw scenario. With three vector-like fermion doublets and two scalar triplets, we provide a loop level setup for the electromagnetic vertex of…

高能物理 - 唯象学 · 物理学 2024-04-17 Shivaramakrishna Singirala , Dinesh Kumar Singha , Rukmani Mohanta

We study the mutual interaction between the dark sectors (dark matter and dark energy) of the Universe by resorting to the extended thermodynamics of irreversible processes and constrain the former with supernova type Ia data. As a…

广义相对论与量子宇宙学 · 物理学 2009-08-13 Jia Zhou , Bin Wang , Diego Pavon , Elcio Abdalla

The problem of dark energy can be roughly stated as the proposition and validation of a cosmological model that can explain the phenomenon of the accelerated expansion of the Universe. This problem is an open discussion topic in modern…

广义相对论与量子宇宙学 · 物理学 2014-12-19 Genly Leon

This review considers the theoretical approaches to the understanding of dark energy which comprises approximately 68\% of the energy of our Universe and explains an acceleration in its expansion. Following a discussion of the main approach…

广义相对论与量子宇宙学 · 物理学 2024-03-12 Galina L. Klimchitskaya , Vladimir M. Mostepanenko

We present a detailed investigation of the dynamical behavior of mimetic gravity with a general potential for the mimetic scalar field. Performing a phase-space and stability analysis, we show that the scenario at hand can successfully…

广义相对论与量子宇宙学 · 物理学 2018-12-13 Jibitesh Dutta , Wompherdeiki Khyllep , Emmanuel N. Saridakis , Nicola Tamanini , Sunny Vagnozzi

Although equivalent to general relativity, teleparallel gravity is conceptually speaking a completely different theory. In this theory, the gravitational field is described by torsion, not by curvature. By working in this context, a new…

广义相对论与量子宇宙学 · 物理学 2015-11-30 Giovanni Otalora

The strongest evidence for dark energy comes presently from geometric techniques such as the supernova distance-redshift relation. By combining the measured expansion history with the Friedmann equation one determines the energy density and…

天体物理学 · 物理学 2008-11-26 Edmund Bertschinger

As theoretical knowledge and experimental verification of nuclear cross sections increases it becomes possible to refine analytic representations for nuclear reaction rates. In this paper mathematical/statistical techniques for deriving…

天体物理学 · 物理学 2009-10-22 W. J. Anderson , H. J. Haubold , A. M. Mathai

It is shown that if a potential in a nonrelativistic system of Fermi particles has a sufficiently strong singularity, anomalies (nonzero values of quantities formally equal to zero) will probably appear. For different types of singularities…

量子物理 · 物理学 2007-05-23 D. A. Kirzhnits , G. V. Shpatakovskaya

A set of cosmological models that takes into account the variation of the particle number is presented. In this context both dark matter and dark energy can be explained using a single component, without assuming any exotic equation of…

天体物理学 · 物理学 2008-12-22 Victor H. Cardenas

In this letter, we show that in a particular braneworld scenario with variable brane tension, we obtain matter acting as dark energy while the gravitational constant $G$ promoted to a scalar field on the brane plays the role of matter (both…

广义相对论与量子宇宙学 · 物理学 2024-12-03 Naman Kumar
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