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Disentangling Dark Matter Dynamics With Directional Detection
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Book Synopsis Disentangling Dark Matter Dynamics with Directional Detection by :
Download or read book Disentangling Dark Matter Dynamics with Directional Detection written by and published by . This book was released on 2009 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inelastic dark matter reconciles the DAMA anomaly with other null direct detection experiments and points to a non-minimal structure in the dark matter sector. In addition to the dominant inelastic interaction, dark matter scattering may have a subdominant elastic component. If these elastic interactions are suppressed at low momentum transfer, they will have similar nuclear recoil spectra to inelastic scattering events. While upcoming direct detection experiments will see strong signals from such models, they may not be able to unambiguously determine the presence of the subdominant elastic scattering from the recoil spectra alone. We show that directional detection experiments can separate elastic and inelastic scattering events and discover the underlying dynamics of dark matter models.
Book Synopsis Issues in General Physics Research: 2011 Edition by :
Download or read book Issues in General Physics Research: 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 8864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in General Physics Research / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about General Physics Research. The editors have built Issues in General Physics Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about General Physics Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in General Physics Research: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Book Synopsis The Theory of Direct Dark Matter Detection by : Eugenio Del Nobile
Download or read book The Theory of Direct Dark Matter Detection written by Eugenio Del Nobile and published by Springer Nature. This book was released on 2022-05-09 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a pedagogical guide on how to make computations in direct dark matter (DM) detection. The theory behind the calculation of direct detection cross sections and rates is presented, touching aspects related to elementary particle physics, hadronic physics, nuclear physics, and astrophysics. The book is structured in self-contained sections, covering several topics ranging from the scattering kinematics to the phenomenology of direct DM searches. It follows a model-independent approach, aiming at providing the readers with all that is needed to understand the theory and start their own analysis. Meant for graduate students and researchers with interests in particle physics and phenomenology, it is enriched with several worked examples from standard and non-standard particle DM models. Senior researchers working in different areas related to dark matter, like particle and nuclear physics, astrophysics, and cosmology, find in this book a useful and updated guide for reference.
Book Synopsis Directional Detection of Dark Matter in Universal Bound States by :
Download or read book Directional Detection of Dark Matter in Universal Bound States written by and published by . This book was released on 2016 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Illuminating Dark Matter by : Rouven Essig
Download or read book Illuminating Dark Matter written by Rouven Essig and published by Springer Nature. This book was released on 2019-11-22 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a Simons Symposium held in 2018, the proceedings in this volume focus on the theoretical, numerical, and observational quest for dark matter in the universe. Present ground-based and satellite searches have so far severely constrained the long-proposed theoretical models for dark matter. Nevertheless, there is continuously growing astrophysical and cosmological evidence for its existence. To address present and future developments in the field, novel ideas, theories, and approaches are called for. The symposium gathered together a new generation of experts pursuing innovative, more complex theories of dark matter than previously considered.This is being done hand in hand with experts in numerical astrophysical simulations and observational techniques—all paramount for deciphering the nature of dark matter. The proceedings volume provides coverage of the most advanced stage of understanding dark matter in various new frameworks. The collection will be useful for graduate students, postdocs, and investigators interested in cutting-edge research on one of the biggest mysteries of our universe.
Book Synopsis Progress in Dark Matter Research by : J. Val Blain
Download or read book Progress in Dark Matter Research written by J. Val Blain and published by Nova Publishers. This book was released on 2005 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally believed that most of the matter in the universe is dark, i.e. cannot be detected from the light which it emits (or fails to emit). Its presence is inferred indirectly from the motions of astronomical objects, specifically stellar, galactic, and galaxy cluster/supercluster observations. It is also required in order to enable gravity to amplify the small fluctuations in the cosmic microwave background enough to form the large-scale structures that we see in the universe today. For each of the stellar, galactic, and galaxy cluster/supercluster observations the basic principle is that if we measure velocities in some region, then there has to be enough mass there for gravity to stop all the objects flying apart. Dark matter has important consequences for the evolution of the Universe and the structure within it. According to general relativity, the Universe must conform to one of three possible types: open, flat, or closed. The total amount of mass and energy in the universe determines which of the three possibilities applies to the Universe. In the case of an open Universe, the total mass and energy density (denoted by the Greek letter Omega) is less than unity. If the Universe is closed, Omega is greater than unity. For the case where Omega is exactly equal to one the Universe is "flat". This book details leading-edge research from around the globe.
Book Synopsis Search for Dark Matter with the ATLAS Detector by : Johanna Gramling
Download or read book Search for Dark Matter with the ATLAS Detector written by Johanna Gramling and published by Springer. This book was released on 2018-08-01 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses searches for Dark Matter at the CERN’s LHC, the world’s most powerful accelerator. It introduces the relevant theoretical framework and includes an in-depth discussion of the Effective Field Theory approach to Dark Matter production and its validity, as well as an overview of the formalism of Simplified Dark Matter models. Despite overwhelming astrophysical evidence for Dark Matter and numerous experimental efforts to detect it, the nature of Dark Matter still remains a mystery and has become one of the hottest research topics in fundamental physics. Two searches for Dark Matter are presented, performed on data collected with the ATLAS experiment. They analyze missing-energy final states with a jet or with top quarks. The analyses are explained in detail, and the outcomes and their interpretations are discussed, also in view of the precedent analysis of theoretical approaches. Given its depth of coverage, the book represents an excellent reference guide for all physicists interested in understanding the theoretical and experimental considerations relevant to Dark Matter searches at the LHC.
Download or read book Dark Matter written by J. Val Blain and published by Nova Publishers. This book was released on 2006 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally believed that most of the matter in the universe is dark, i.e. cannot be detected from the light which it emits (or fails to emit). Its presence is inferred indirectly from the motions of astronomical objects, specifically stellar, galactic, and galaxy cluster/supercluster observations. It is also required in order to enable gravity to amplify the small fluctuations in the cosmic microwave background enough to form the large-scale structures that we see in the universe today. For each of the stellar, galactic, and galaxy cluster/supercluster observations the basic principle is that if we measure velocities in some region, then there has to be enough mass there for gravity to stop all the objects flying apart. Dark matter has important consequences for the evolution of the universe and the structure within it. According to general relativity, the universe must conform to one of three possible types: open, flat, or closed. The total amount of mass and energy in the universe determines which of the three possibilities applies to the universe. In the case of an open universe, the total mass and energy density (denoted by the Greek letter Ù) is less than unity. If the universe is closed, Ù is greater than unity. For the case where Ù is exactly equal to one the universe is "flat". This new book details leading-edge research from around the globe.
Book Synopsis Trends in Dark Matter Research by : J. Val Blain
Download or read book Trends in Dark Matter Research written by J. Val Blain and published by Nova Publishers. This book was released on 2005 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally believed that most of the matter in the universe is dark, i.e. cannot be detected from the light which it emits (or fails to emit). Its presence is inferred indirectly from the motions of astronomical objects, specifically stellar, galactic, and galaxy cluster/supercluster observations. It is also required in order to enable gravity to amplify the small fluctuations in the cosmic microwave background enough to form the large-scale structures that we see in the universe today. For each of the stellar, galactic, and galaxy cluster/supercluster observations the basic principle is that if we measure velocities in some region, then there has to be enough mass there for gravity to stop all the objects flying apart. Dark matter has important consequences for the evolution of the universe and the structure within it. According to general relativity, the universe must conform to one of three possible types: open, flat, or closed. The total amount of mass and energy in the universe determines which of the three possibilities applies to the universe. In the case of an open universe, the total mass and energy density (denoted by the Greek letter Ù) is less than unity. If the universe is closed, Ù is greater than unity. For the case where Ù is exactly equal to one the universe is "flat". This new book details leading-edge research from around the globe.
Book Synopsis Dark Matter Dynamics and Indirect Detection by :
Download or read book Dark Matter Dynamics and Indirect Detection written by and published by . This book was released on 2005 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 particles with laboratory detectors) and indirect detection (via observations of the products of dark matter self-annihilations), focusing in particular on the Galactic center, which is among the most promising targets for indirect detection studies. The gravitational potential at the Galactic center is dominated by stars and by the supermassive black hole, and the dark matter distribution is expected to evolve on sub-parsec scales due to interaction with these components. We discuss the dominant interaction mechanisms and show how they can be used to rule out certain extreme models for the dark matter distribution, thus increasing the information that can be gleaned from indirect detection searches.
Book Synopsis Phase Space Distribution and Directional Direct Detection of Dark Matter Weakly Interacting Massive Particles by : Moqbil Salem T. Alenazi
Download or read book Phase Space Distribution and Directional Direct Detection of Dark Matter Weakly Interacting Massive Particles written by Moqbil Salem T. Alenazi and published by . This book was released on 2008 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dark Matter Directionality Revisited with a High Pressure Xenon Gas Detector by :
Download or read book Dark Matter Directionality Revisited with a High Pressure Xenon Gas Detector written by and published by . This book was released on 2015 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: An observation of the anisotropy of dark matter interactions in a direction-sensitive detector would provide decisive evidence for the discovery of galactic dark matter. Directional information would also provide a crucial input to understanding its distribution in the local Universe. Most of the existing directional dark matter detectors utilize particle tracking methods in a low-pressure gas time projection chamber. These low pressure detectors require excessively large volumes in order to be competitive in the search for physics beyond the current limit. In order to avoid these volume limitations, we consider a novel proposal, which exploits a columnar recombination effect in a high-pressure gas time projection chamber. The ratio of scintillation to ionization signals observed in the detector carries the angular information of the particle interactions. In this paper, we investigate the sensitivity of a future directional detector focused on the proposed high-pressure Xenon gas time projection chamber. We study the prospect of detecting an anisotropy in the dark matter velocity distribution. We find that tens of events are needed to exclude an isotropic distribution of dark matter interactions at 95% confidence level in the most optimistic case with head-to-tail information. However, one needs at least 10-20 times more events without head-to-tail information for light dark matter below ~50 GeV. For an intermediate mass range, we find it challenging to observe an anisotropy of the dark matter distribution. Our results also show that the directional information significantly improves precision measurements of dark matter mass and the elastic scattering cross section for a heavy dark matter.
Book Synopsis Dark Matter in the Universe and Its Direct Detection by : M. Minowa
Download or read book Dark Matter in the Universe and Its Direct Detection written by M. Minowa and published by . This book was released on 1997 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 4th Workshop on Directional Detection of Dark Matter (CYGNUS 2013) by :
Download or read book 4th Workshop on Directional Detection of Dark Matter (CYGNUS 2013) written by and published by . This book was released on 2014 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ultralight Dark Matter Dynamics with an Absorbing Black Hole by : Ningyuan Lillian Guo
Download or read book Ultralight Dark Matter Dynamics with an Absorbing Black Hole written by Ningyuan Lillian Guo and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultralight dark matter (ULDM) is an interesting alternative to the standard cold dark matter scenario that admits new physics on kiloparsec scales. In this scenario, dark matter particles have a mass m ~ O(1022 eV), and their dynamics is governed in the non-relativistic weak- eld limit by the Schr odinger-Poisson equation. Coherent "solitons" are predicted to form at the centre of dark matter halos. This thesis presents eigenvalue solutions to the Schr odinger-Poisson equation for purely self-gravitating ULDM, as well as ground state solutions (solitons) for the Schr odinger-Poisson equation with added external central potential, and with attractive ULDM self-interaction. Relationship between soliton density and black hole mass as well as soliton mass is explored. A new pseudospectral solver is then presented for the Schr odinger-Poisson equation under spherical symmetry. It is used to model a central black hole absorbing mass from the soliton by adding a localised imaginary potential, which can be tuned to the absorption model. This allows the rst qualitative dynamical simulations of solitons governed by the Schr odinger- Poisson equation loosing mass to a black hole. Due to a lack of a well-established theory for black hole absorption of ULDM, an empirical model is investigated, showing that it can lead to a range of dynamical behaviours. ULDM central density can change substantially as the black hole mass evolves, and the overall soliton lifetime may be a function of the dynamically changing pro le. A moderate absorption rate is found to be most e cient in removing mass from the soliton. With astrophysically relevant parameters, this code can serve as a valuable tool to understanding whether galactic-centre solitons are expected to have an observable contribution to the mass around supermassive black holes. The code can also be used to model dynamics of axion stars forming from heavier ULDM particles, and mass loss of solitons through e.g. axion-radiation conversion.
Book Synopsis The Search for Dark Matter by : Mariangela Lisanti
Download or read book The Search for Dark Matter written by Mariangela Lisanti and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is devoted to searches for dark matter at colliders and direct detection experiments. The first half of the work focuses on the Tevatron and LHC. Jets and missing energy searches at these colliders are sensitive to a broad class of models and dark matter candidates. I show that current jets plus missing energy analyses can miss signals for new physics, and suggest an alternative model-independent search strategy that broadens the reach of these experiments I also discuss searches for Higgs bosons that decay to light pseudoscalars. Information about the Higgs sector obtained through such searches may hint at the nature of the dark matter. The second half of the thesis turns to direct detection experiments, with a focus on inelastic dark matter. I discuss the prospects for discovering inelastic dark matter at upcoming experiments, and present two models with inelastically scattering dark matter. One of these models posits composite dark matter and has unique phenomenology that can be studied with directional detection experiments.
Book Synopsis A Model of the Directional Sensitivity of Low-pressure CF4 Dark Matter Detectors by : Cosmin Ştefan Deaconu
Download or read book A Model of the Directional Sensitivity of Low-pressure CF4 Dark Matter Detectors written by Cosmin Ştefan Deaconu and published by . This book was released on 2015 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: Identification of the composition of dark matter is one of the major unsolved puzzles in modern physics. Detectors with sensitivity to the direction of certain classes of dark matter particles have potentially very powerful discrimination ability against more mundane backgrounds. The Dark Matter Time Projection Chamber (DMTPC) collaboration is actively working on a directional detection method using low-pressure CF4 gas detectors with optical readout. This work constructs a model for the directional reconstruction ability of DMTPC detectors, evaluates the model against calibration data, and finally uses the model to project the directional sensitivity of the under-construction next generation DMTPC detector. This detector is expected to have a cubic meter of fiducial volume which, at 30 Torr, corresponds to a fluorine target mass of 120 g.
