English
Related papers

Related papers: Small-scale clumps of dark matter

200 papers

We attempt to identify the minimal composite scalar dark matter from strong dynamics with the characteristic mass of order TeV scale. We provide both direct and indirect limits from dark matter direct detections and collider facilities.…

High Energy Physics - Phenomenology · Physics 2023-05-16 Shuai Xu , Sibo Zheng

Assuming that cosmological dark matter consists of weakly interacting massive particles, we use the recent precise measurement of cosmological parameters to predict the guaranteed rates of production of such particles in association with…

High Energy Physics - Phenomenology · Physics 2009-10-09 Andreas Birkedal , Konstantin Matchev , Maxim Perelstein

Extension of particle symmetry implies new conserved charges and the lightest particles, possessing such charges, should be stable. Created in early Universe, stable charged heavy leptons and quarks can exist and, hidden in elusive atoms…

Astrophysics · Physics 2007-05-23 Maxim Yu. Khlopov

In this review, we describe our current understanding of cluster formation: from the general picture of collapse from initial density fluctuations in an expanding Universe to detailed simulations of cluster formation including the effects…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Andrey Kravtsov , Stefano Borgani

We argue that primordial dark matter halos could be generated during radiation domination by long range attractive forces stronger than gravity. In this paper we derive the conditions under which these structures could dominate the dark…

Cosmology and Nongalactic Astrophysics · Physics 2019-10-17 Stefano Savastano , Luca Amendola , Javier Rubio , Christof Wetterich

Determining the structure of galaxy clusters is essential for an understanding of large scale structure in the universe, and may hold important clues to the identity and nature of dark matter particles. Moreover, the core dark matter…

Astrophysics · Physics 2009-11-07 J. S. Arabadjis , M. W. Bautz , G. Arabadjis

The formation and growth of black holes can strongly influence the distribution of dark matter around them. I discuss here the different types of dark matter overdensities around black holes, including dark matter cusps, spikes, mounds,…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-18 Gianfranco Bertone

These lectures are intended to provide a brief pedagogical review of dark matter for the newcomer to the subject. We begin with a discussion of the astrophysical evidence for dark matter. The standard weakly-interacting massive particle…

Cosmology and Nongalactic Astrophysics · Physics 2009-07-14 Guido D'Amico , Marc Kamionkowski , Kris Sigurdson

The complementarity of direct, indirect and collider searches for dark matter has improved our understanding concerning the properties of the dark matter particle. I will review the basic concepts that these methods rely upon and highlight…

High Energy Physics - Phenomenology · Physics 2016-05-31 Farinaldo S. Queiroz

Dark matter halos of sub-solar mass are the first bound objects to form in cold dark matter theories. In this article, I discuss the present understanding of "microhalos'', their role in structure formation, and the implications of their…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-20 Savvas M. Koushiappas

Axion-like particle (ALP) dark matter shows distinctive behavior on scales where wavelike effects dominate over self-gravity. Ultralight axions are candidates for fuzzy dark matter (FDM) whose de Broglie wavelength in virialized halos…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-15 Jens C. Niemeyer

As cosmology has entered a phase of precision experiments, the content of the universe has been established to contain interesting and not yet fully understood components, namely dark energy and dark matter. While the cause and exact nature…

High Energy Physics - Phenomenology · Physics 2015-06-25 Lars Bergstrom

The standard cold dark matter plus cosmological constant model predicts that galaxies form within dark-matter haloes, and that low-mass galaxies are more dark-matter dominated than massive ones. The unexpected discovery of two low-mass…

We model the formation, evolution and astrophysical effects of dark compact Scalar Miniclusters (``ScaMs''). These objects arise when a scalar field, with an axion-like or Higgs-like potential, undergoes a second order phase transition…

Astrophysics · Physics 2008-11-26 Kathryn M. Zurek , Craig J. Hogan , Thomas R. Quinn

The origin and formation of globular clusters has remained a mystery. We present a formation scenario for ancient globular cluster-like objects that form in ultra-high resolution simulations (smallest cell size $<0.1\,\mathrm{pc}$, mass…

Astrophysics of Galaxies · Physics 2023-10-09 Thales A. Gutcke

Dark Matter searches in collider and non-collider experiments requires systematic and consistent approach. We suggest and perform classification of Minimal Consistent Dark Matter models which are aimed to create a solid framework for Dark…

High Energy Physics - Phenomenology · Physics 2022-02-04 Alexander Belyaev , Giacomo Cacciapaglia , Daniel Locke

The existence of dark matter was suggested, using simple gravitational arguments, seventy years ago. Although we are now convinced that most of the mass in the Universe is indeed some non-luminous matter, we still do not know its…

High Energy Physics - Phenomenology · Physics 2009-11-10 Carlos Munoz

The small-scale structure problems of the universe can be solved by self-interacting dark matter that becomes strongly interacting at low energies. A particularly predictive model is resonant short-range self-interactions, with a…

High Energy Physics - Phenomenology · Physics 2019-05-14 Eric Braaten , Daekyoung Kang , Ranjan Laha

In the first section, I will try to convey a sense of the variety of observational inputs that tell us about the existence and the spatial distribution of dark matter in the universe. In the second section, I will briefly review the four…

High Energy Physics - Phenomenology · Physics 2016-09-01 Pierre Sikivie

Ultralight dark matter simulations predict condensates with short-range correlation, known as solitons or boson stars, at the centers of dark matter halos. This paper investigates the formation and collapse of dark matter solitons…

High Energy Physics - Phenomenology · Physics 2025-07-21 Jiajun Chen , Hong-Yi Zhang