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Signatures Of Dark Matter
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Book Synopsis Gravitational Signatures of Wave Dark Matter by : Delbert R. Fite
Download or read book Gravitational Signatures of Wave Dark Matter written by Delbert R. Fite and published by Wajid Publishers. This book was released on 2023-08-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the course of almost a century, the evidence for the existence of dark matter (DM) has continued to grow. This evidence is supported by observations at various astronomical scales, ranging from galaxy-sized systems [1-3] to cluster [4-8] and cosmological scales [9,10]. Alternative theories to dark matter, such as modified gravity theories [11,12], have been proposed and studied, but they fail to explain all astronomical observations without invoking dark matter
Book Synopsis Signatures of Dark Matter by : Edward Anthony Baltz
Download or read book Signatures of Dark Matter written by Edward Anthony Baltz and published by . This book was released on 2000 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gravitational Signatures of Wave Dark Matter by : Alessandro Lenoci
Download or read book Gravitational Signatures of Wave Dark Matter written by Alessandro Lenoci and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observational Signatures of Supersymmetric Dark Matter by :
Download or read book Observational Signatures of Supersymmetric Dark Matter written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Signatures of a New Force in the Dark Matter Sector by : Tracy Robin Slatyer
Download or read book Signatures of a New Force in the Dark Matter Sector written by Tracy Robin Slatyer and published by . This book was released on 2010 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Galactic Signatures of Decaying Dark Matter by : Le Zhang
Download or read book Galactic Signatures of Decaying Dark Matter written by Le Zhang and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Asymmetric Dark Matter by : Kathryn M. Zurek
Download or read book Asymmetric Dark Matter written by Kathryn M. Zurek and published by . This book was released on 2014 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Placing Limits on Experimental Signatures of Dark Matter Model Predictions by : Arjun Sharma
Download or read book Placing Limits on Experimental Signatures of Dark Matter Model Predictions written by Arjun Sharma and published by . This book was released on 2018 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, we consider two different models of dark matter and set limits on results of experiments. One is a dynamic dark matter scenario where we put limits on parameters observable by experiments DAMA and XMASS through nuclear recoil of detector atoms (direct detection). The second is a case of dark matter annihilation into positrons and electrons and the signal this would produce on measured values of positron flux and ratio of electron to positron (indirect detection). The values of these quantities as measured by FERMI and PAMELA experiments are observed and an explanation using a dark matter annihilation is presented vs astrophysical sources of particles.
Book Synopsis Probing Cosmic Dark Matter and Dark Energy with Weak Gravitational Lensing Statistics by : Masato Shirasaki
Download or read book Probing Cosmic Dark Matter and Dark Energy with Weak Gravitational Lensing Statistics written by Masato Shirasaki and published by Springer. This book was released on 2015-11-18 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the applicability and the utility of two statistical approaches for understanding dark energy and dark matter with gravitational lensing measurement are introduced. For cosmological constraints on the nature of dark energy, morphological statistics called Minkowski functionals (MFs) to extract the non-Gaussian information of gravitational lensing are studied. Measuring lensing MFs from the Canada–France–Hawaii Telescope Lensing survey (CFHTLenS), the author clearly shows that MFs can be powerful statistics beyond the conventional approach with the two-point correlation function. Combined with the two-point correlation function, MFs can constrain the equation of state of dark energy with a precision level of approximately 3–4 % in upcoming surveys with sky coverage of 20,000 square degrees. On the topic of dark matter, the author studied the cross-correlation of gravitational lensing and the extragalactic gamma-ray background (EGB). Dark matter annihilation is among the potential contributors to the EGB. The cross-correlation is a powerful probe of signatures of dark matter annihilation, because both cosmic shear and gamma-ray emission originate directly from the same dark matter distribution in the universe. The first measurement of the cross-correlation using a real data set obtained from CFHTLenS and the Fermi Large Area Telescope was performed. Comparing the result with theoretical predictions, an independent constraint was placed on dark matter annihilation. Future lensing surveys will be useful to constrain on the canonical value of annihilation cross section for a wide range of mass of dark matter annihilation. Future lensing surveys will be useful to constrain on the canonical value of annihilation cross section for a wide range of mass of dark matter.
Book Synopsis In Search of Dark Matter by : Ken Freeman
Download or read book In Search of Dark Matter written by Ken Freeman and published by Springer Science & Business Media. This book was released on 2006-08-25 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for the educated non-scientist and scientist alike, it spans a variety of scientific disciplines, from observational astronomy to particle physics. Concepts that the reader will encounter along the way are at the cutting edge of scientific research. However the themes are explained in such a way that no prior understanding of science beyond a high school education is necessary.
Book Synopsis Particle Dark Matter by : Gianfranco Bertone
Download or read book Particle Dark Matter written by Gianfranco Bertone and published by Cambridge University Press. This book was released on 2010-01-07 with total page 763 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the dark matter problem in particle physics, astrophysics and cosmology for graduate students and researchers.
Book Synopsis Signatures of SUSY Dark Matter at the LHC and in the Spectra of Cosmic Rays by : Jan Olzem
Download or read book Signatures of SUSY Dark Matter at the LHC and in the Spectra of Cosmic Rays written by Jan Olzem and published by . This book was released on 2007 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Angular Signatures of Dark Matter in the Diffuse Gamma Ray Spectrum by :
Download or read book Angular Signatures of Dark Matter in the Diffuse Gamma Ray Spectrum written by and published by . This book was released on 2007 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dark matter annihilating in our Galaxy's halo and elsewhere in the universe is expected to generate a diffuse flux of gamma rays, potentially observable with next generation satellite-based experiments, such as GLAST. In this article, we study the signatures of dark matter in the angular distribution of this radiation. Pertaining to the extragalactic contribution, we discuss the effect of the motion of the solar system with respect to the cosmological rest frame, and anisotropies due to the structure of our local universe. For the gamma ray flux from dark matter in our own Galactic halo, we discuss the effects of the offset position of the solar system, the Compton-Getting effect, the asphericity of the Milky Way halo, and the signatures of nearby substructure. We explore the prospects for the detection of these features by the GLAST satellite and find that, if (almost equal to) 10% or more of the diffuse gamma ray background observed by EGRET is the result of dark matter annihilations, then GLAST should be sensitive to anisotropies down to the 0.1% level. Such precision would be sufficient to detect many, if not all, of the signatures discussed in this paper.
Book Synopsis Connecting Quarks with the Cosmos by : National Research Council
Download or read book Connecting Quarks with the Cosmos written by National Research Council and published by National Academies Press. This book was released on 2003-03-12 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances made by physicists in understanding matter, space, and time and by astronomers in understanding the universe as a whole have closely intertwined the question being asked about the universe at its two extremesâ€"the very large and the very small. This report identifies 11 key questions that have a good chance to be answered in the next decade. It urges that a new research strategy be created that brings to bear the techniques of both astronomy and sub-atomic physics in a cross-disciplinary way to address these questions. The report presents seven recommendations to facilitate the necessary research and development coordination. These recommendations identify key priorities for future scientific projects critical for realizing these scientific opportunities.
Book Synopsis Indirect Signatures of Unstable Dark Matter in Cosmic-ray Antimatter and in the Gamma-ray Sky by : David Hoang Tran
Download or read book Indirect Signatures of Unstable Dark Matter in Cosmic-ray Antimatter and in the Gamma-ray Sky written by David Hoang Tran and published by . This book was released on 2011 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dark Matter written by Philipp Grothaus and published by . This book was released on 2016 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Signatures of dark matter can be manifold. In the framework of weakly interacting massive particles they can come from annihilations in dark matter rich regions, from collisions of dark matter particles in terrestrial direct search experiments or from production of dark matter at particle accelerators. This thesis focuses on the latter two possibilities. In the context of collider signatures, we discuss how deviations from background expectations can be interpreted in dark matter models. We look at two examples. First, we see how anomalies in searches for Supersymmetry point towards specific mass spectra in the Minimal Supersymmetric Standard Model (MSSM) at the e))'.:ample of a slight dilepton excess observed by CMS. These spectra are then constrained further by taking complementary analyses into account via a recasting of their limits. This recasting is necessary, because limits on the MSSM spectrum are strongly model dependent. Second, we investigate how deviations in the Higgs to diphoton decay rate can be explained by new vector-like leptons. As we will show, this model not only provides a valid dark matter candidate, but simultaneously leads to a strong first order electroweak phase transition that is necessary for the generation of the observed baryon asymmetry in electroweak baryogenesis scenarios. Future direct dark matter experiments will be challenged by an irreducible background coming from coherent neutrino-nucleus elastic scattering events that mimic dark matter collisions. This creates a lower limit on accessible dark matter-nucleon cross sections. We show that information coming from the direction of the recoiling nucleus can serve as a strong discriminator between neutrino and dark matter events such that this neutrino bound can be avoided. Necessary exposures of directional searches to surpass this limit are computed.
Book Synopsis Antimatter Signatures of Gravitino Dark Matter Decay by : Alejandro Ibarra
Download or read book Antimatter Signatures of Gravitino Dark Matter Decay written by Alejandro Ibarra and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
