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Related papers: Direct dark matter searches - Test of the Big Boun…

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We report on the possibility to use dark matter particle's mass and its cross section as a smoking gun signal of the existence of a Big Bounce at the early stage in the evolution of our currently observed universe. A model independent study…

General Relativity and Quantum Cosmology · Physics 2016-01-18 Changhong Li , Robert H. Brandenberger , Yeuk-Kwan E. Cheung

We review the recent status of big bounce genesis as a new possibility of using dark matter particle's mass and interaction cross section to test the existence of a bounce universe at the early stage of evolution in our currently observed…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-23 Yeuk-Kwan E. Cheung , Changhong Li , J. D. Vergados

We present a novel mechanism for thermal dark matter production, characterized by a "bounce": the dark matter equilibrium distribution transitions from the canonical exponentially falling abundance to an exponentially rising one, resulting…

High Energy Physics - Phenomenology · Physics 2024-02-05 Lucas Puetter , Joshua T. Ruderman , Ennio Salvioni , Bibhushan Shakya

We consider the production of axion dark matter through the misalignment mechanism in the context of a nonstandard cosmological history involving early matter domination by a scalar field with a time-dependent decay rate. In cases where the…

High Energy Physics - Phenomenology · Physics 2023-05-24 Paola Arias , Nicolás Bernal , Jacek K. Osiński , Leszek Roszkowski

Indirect detection is the search for the particle nature of dark matter with astrophysical probes. Manifestly, it exists right at the intersection of particle physics and astrophysics, and the discovery potential for dark matter can be…

High Energy Physics - Phenomenology · Physics 2018-05-21 Nicholas L. Rodd

We investigate a new scenario of dark matter production in a bouncing universe, in which dark matter was produced completely out of equilibrium in the contracting as well as expanding phase. We explore possibilities of using dark matter as…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-23 Yeuk Kwan E. Cheung , Jin U Kang , Changhong Li

The dark-matter candidates of particle physics invariably possess electromagnetic interactions, if only via quantum fluctuations. Taken en masse, dark matter can thus engender an index of refraction which deviates from its vacuum value. Its…

High Energy Physics - Phenomenology · Physics 2014-11-18 S. Gardner , D. C. Latimer

The evidence for the dark matter of the hot big bang cosmology is about as good as it gets in natural science. The exploration of its nature is now led by direct and indirect detection experiments, to be complemented by advances in the full…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-15 P. J. E. Peebles

Non-baryonic, or "dark," matter is believed to be a major component of the total mass budget of the universe. We review the candidates for particle dark matter and discuss the prospects for direct detection (via interaction of dark matter…

Astrophysics · Physics 2008-11-26 Gianfranco Bertone , David Merritt

The majority of the matter in the universe is still unidentified and under investigation by both direct and indirect means. Many experiments searching for the recoil of dark-matter particles off target nuclei in underground laboratories…

High Energy Physics - Phenomenology · Physics 2015-10-28 Michael Klasen , Martin Pohl , Günter Sigl

The origin of dark matter as a thermal relic offers a compelling way in which the early universe was initially populated by dark matter. Alternative explanations typically appear exotic compared to the simplicity of thermal production.…

High Energy Physics - Theory · Physics 2016-12-21 Scott Watson

Recent observations of Type Ia supernovae provide evidence for the acceleration of our universe, which leads to the possibility that the universe is entering an inflationary epoch. We simulate it under a ``big bounce'' model, which contains…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Beili Wang , Hongya Liu , Lixin Xu

Modern Cosmology offers us a great understanding of the universe with striking precision, made possible by the modern technologies of the newest generations of telescopes. The standard cosmological model, however, is not absent of…

Cosmology and Nongalactic Astrophysics · Physics 2016-10-06 Rafael J. F. Marcondes

We investigate the production and freeze-out of dark matter with a constant thermally averaged cross-section in a generic bouncing universe framework. Our result shows that, there is a novel avenue that dark matter is produced thermally and…

Cosmology and Nongalactic Astrophysics · Physics 2015-09-16 Changhong Li

Measurements of the primordial element abundances provide us with an important probe of our universe's early thermal history, allowing us to constrain the expansion rate and composition of our universe as early as $\sim 1 \, {\rm s}$ after…

High Energy Physics - Phenomenology · Physics 2023-10-10 Dan Hooper , Huangyu Xiao

A model for gravitational collapse where the event horizon is a quantum critical phase transition is extended to provide an explanation for the origin of the observable universe, where the expanding universe that we observe today was…

General Relativity and Quantum Cosmology · Physics 2016-02-09 George Chapline , James Barbieri

Dark matter (DM) as a thermal relic of the primordial plasma is increasingly pressured by direct and indirect searches, while the same production mechanism in a decoupled sector is much less constrained. We extend the standard treatment of…

High Energy Physics - Phenomenology · Physics 2021-05-19 Torsten Bringmann , Paul Frederik Depta , Marco Hufnagel , Kai Schmidt-Hoberg

The cosmological evolution can modify the dark matter (DM) properties in the early Universe to be vastly different from the properties today. Therefore, the relation between the relic abundance and the DM constraints today needs to be…

High Energy Physics - Phenomenology · Physics 2022-03-15 Katsuya Hashino , Jia Liu , Xiao-Ping Wang , Ke-Pan Xie

Dark matter particles populating our galactic halo could be directly detected by measuring their scattering off target nuclei or electrons in a suitable detector. As this interaction is expected to occur with very low probability and would…

Instrumentation and Detectors · Physics 2023-06-14 Susana Cebrián

In the past decades, several detector technologies have been developed with the quest to directly detect dark matter interactions and to test one of the most important unsolved questions in modern physics. The sensitivity of these…

Instrumentation and Detectors · Physics 2017-04-04 Teresa Marrodan Undagoitia , Ludwig Rauch
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