Diurnal modulation signal from dissipative hidden sector dark matter
Robert Foot,Sunny Vagnozzi +1 more
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TLDR
In this article, a generic dissipative dark matter model was proposed to explain dark matter phenomena on both large and small scales, where the dark matter halo in spiral galaxies features nontrivial dynamics, with the halo energy loss due to dissipative interactions balanced by a heat source.Citations
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New physics in light of the $H_0$ tension: an alternative view
TL;DR: In this paper, the authors consider an alternative viewpoint: what happens if a physical theory is able to fix the extra parameters to a specific set of nonstandard values, in this case the degrees of freedom of the model are reduced with respect to the standard case where the additional parameters are free to vary.
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Dissipative hidden sector dark matter
Robert Foot,Sunny Vagnozzi +1 more
TL;DR: In this article, the authors propose a simple way of explaining dark matter, without modifying the standard model, by positing a hidden sector containing two stable particles, which interact with the visible sector primarily via gravity.
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Mimetic Gravity: A Review of Recent Developments and Applications to Cosmology and Astrophysics
TL;DR: Mimetic gravity is a Weyl-symmetric extension of General Relativity, related to the latter by a singular disformal transformation, wherein the appearance of a dust-like perfect fluid can mimic cold dark matter at a cosmological level as discussed by the authors.
Journal ArticleDOI
Mimetic gravity: a review of recent developments and applications to cosmology and astrophysics
TL;DR: Mimetic gravity is a Weyl-symmetric extension of General Relativity, related to the latter by a singular disformal transformation, wherein the appearance of a dust-like perfect fluid can mimic cold dark matter at a cosmological level as discussed by the authors.
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Cosmological dynamics of mimetic gravity
Jibitesh Dutta,Jibitesh Dutta,Wompherdeiki Khyllep,Wompherdeiki Khyllep,Emmanuel N. Saridakis,Emmanuel N. Saridakis,Emmanuel N. Saridakis,Nicola Tamanini,Sunny Vagnozzi,Sunny Vagnozzi +9 more
TL;DR: In this article, a detailed investigation of the dynamical behavior of mimetic gravity with a general potential for the mimetic scalar field is presented, which can successfully describe the thermal history of the universe, namely the successive sequence of radiation, matter, and dark energy eras.
References
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Preliminary reference earth model
TL;DR: In this paper, a large data set consisting of about 1000 normal mode periods, 500 summary travel time observations, 100 normal mode Q values, mass and moment of inertia have been inverted to obtain the radial distribution of elastic properties, Q values and density in the Earth's interior.
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Two U(1)'s and Epsilon Charge Shifts
TL;DR: If new particles are gauged by a new U(1) then their electromagnetic charges may be shifted by a calculable amount as mentioned in this paper, which is the case in the case of the current article.
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A theory of dark matter
TL;DR: In this paper, the authors proposed a light boson invoked by XDM to mediate a large inelastic scattering cross section for the DAMA annual modulation signal at low velocities at redshift, which could produce observable effects on the ionization history of the universe.
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First results from DAMA/LIBRA and the combined results with DAMA/NaI
R. Bernabei,P. Belli,F. Cappella,R. Cerulli,C. J. Dai,A. d'Angelo,H. L. He,A. Incicchitti,H. H. Kuang,J. M. Ma,F. Montecchia,F. Nozzoli,D. Prosperi,Xiangdong Sheng,Z. P. Ye +14 more
TL;DR: In this article, the authors presented the first result obtained by exploiting the model independent annual modulation signature for Dark Matter (DM) particles, which refers to an exposure of 0.53 ton×yr.
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Dark matter search results from the CDMS II experiment.
Jodi Cooley,Z. Ahmed,D. S. Akerib,S. Arrenberg,C. N. Bailey,D. Balakishiyeva,Laura Baudis,D. A. Bauer,P. L. Brink,T. Bruch,R. Bunker,Blas Cabrera,David O. Caldwell,P. Cushman,Miguel Daal,F. DeJongh,M. R. Dragowsky,L. Duong,S. Fallows,Enectali Figueroa-Feliciano,Jeffrey P. Filippini,Matthew Fritts,Sunil Golwala,Darren Grant,J. Hall,R. Hennings-Yeomans,S. A. Hertel,Donald J. Holmgren,L. Hsu,Martin E. Huber,O. Kamaev,M. Kiveni,M. Kos,Steven W. Leman,R. Mahapatra,Vuk Mandic,Kevin A. McCarthy,N. Mirabolfathi,David Moore,H. N. Nelson,R. W. Ogburn,A. Phipps,M. Pyle,X. Oiu,E. J. Ramberg,W. Rau,A. Resetter,A. Resetter,Tarek Saab,Bernard Sadoulet,Bernard Sadoulet,J. Sander,R. W. Schnee,D. N. Seitz,B. Serfass,K. M. Sundqvist,M. Tarka,P. Wikus,S. J. Yellin,S. J. Yellin,J. Yoo,Betty A. Young,Jie Zhang +62 more
TL;DR: The results from the completed Cryogenic Dark Matter Search (CDMS II) experiment, which searched for dark matter in the form of weakly interacting massive particles (WIMP), cannot be interpreted with confidence as evidence for WIMP interactions, but neither event can be ruled out as representing signal.