Searching For Dark Matter With Cosmic Gamma Rays
DOWNLOAD
Download Searching For Dark Matter With Cosmic Gamma Rays PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Searching For Dark Matter With Cosmic Gamma Rays book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Searching For Dark Matter With Cosmic Gamma Rays
DOWNLOAD
Author : Andrea Albert
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2016-09-06
Searching For Dark Matter With Cosmic Gamma Rays written by Andrea Albert and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-06 with Science categories.
Searching for Dark Matter with Cosmic Gamma Rays summarizes the evidence for dark matter and what we can learn about its particle nature using cosmic gamma rays. It has almost been 100 years since Fritz Zwicky first detected hints that most of the matter in the Universe that doesn't directly emit or reflect light. Since then, the observational evidence for dark matter has continued to grow. Dark matter may be a new kind of particle that is governed by physics beyond our Standard Model of particle physics. In many models, dark matter annihilation or decay produces gamma rays. There are a variety of instruments observing the gamma-ray sky from tens of MeV to hundreds of TeV. Some make deep, focused observations of small regions, while others provide coverage of the entire sky. Each experiment offers complementary sensitivity to dark matter searches in a variety of target sizes, locations, and dark matter mass scales. We review results from recent gamma-ray experiments including anomalies some have attributed to dark matter. We also discuss how our gamma-ray observations complement other dark matter searches and the prospects for future experiments.
The Role Of Halo Substructure In Gamma Ray Dark Matter Searches
DOWNLOAD
Author : Miguel A. Sánchez-Conde
language : en
Publisher: MDPI
Release Date : 2020-05-28
The Role Of Halo Substructure In Gamma Ray Dark Matter Searches written by Miguel A. Sánchez-Conde and has been published by MDPI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-28 with Mathematics categories.
An important, open research topic today is to understand the relevance that dark matter halo substructure may have for dark matter searches. In the standard cosmological model, halo substructure or subhalos are predicted to be largely abundant inside larger halos, for example, galaxies such as ours, and are thought to form first and later merge to form larger structures. Dwarf satellite galaxies—the most massive exponents of halo substructure in our own galaxy—are already known to be excellent targets for dark matter searches, and indeed, they are constantly scrutinized by current gamma-ray experiments in the search for dark matter signals. Lighter subhalos not massive enough to have a visible counterpart of stars and gas may be good targets as well, given their typical abundances and distances. In addition, the clumpy distribution of subhalos residing in larger halos may boost the dark matter signals considerably. In an era in which gamma-ray experiments possess, for the first time, the exciting potential to put to test the preferred dark matter particle theories, a profound knowledge of dark matter astrophysical targets and scenarios is mandatory should we aim for accurate predictions of dark matter-induced fluxes for investing significant telescope observing time on selected targets and for deriving robust conclusions from our dark matter search efforts. In this regard, a precise characterization of the statistical and structural properties of subhalos becomes critical. In this Special Issue, we aim to summarize where we stand today on our knowledge of the different aspects of the dark matter halo substructure; to identify what are the remaining big questions, and how we could address these; and, by doing so, to find new avenues for research.
Beyond The Visible The Search For Dark Matter
DOWNLOAD
Author : M.S.Ali
language : en
Publisher: Desert Particle
Release Date : 2025-02-19
Beyond The Visible The Search For Dark Matter written by M.S.Ali and has been published by Desert Particle this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-02-19 with Antiques & Collectibles categories.
Beyond the Visible: Unraveling the Secrets of Dark Matter Introduction to the Unseen Universe Dark matter remains a cosmic mystery. The book "Beyond the Visible: The Search for Dark Matter" explores this hidden realm. It uses clear language and engaging insights. Moreover, the author uses historical clues and modern experiments. This approach captivates both enthusiasts and novices. The narrative opens with a thoughtful preface. It sets the stage for a thrilling journey. The book divides into three parts. Each part builds a deeper understanding of dark matter. Furthermore, the text uses scientific breakthroughs to spark curiosity. Part I: Unveiling the Invisible The first chapter highlights the mystery of missing mass. Early hints emerge from galaxy rotation studies. Researchers observed strange motions in galaxies. They detected mass that could not be seen. Additionally, historical data raised many questions. This section uses vivid examples to explain the puzzle. Zwicky's work on the Coma Cluster changed perspectives. His research hinted at unseen mass. The narrative details how this idea took shape. Scientists called this hidden force "dark matter." Furthermore, Vera Rubin confirmed these findings. Her work on galaxy rotation added weight to the theory. These discoveries laid the groundwork for modern research. Part II: The Hunt for Dark Matter The second part details the search for dark matter. Scientists build underground laboratories for experiments. Detectors made of xenon and germanium play key roles. The text explains how these devices capture rare signals. Furthermore, it discusses challenges in sensitivity and measurement. The narrative remains engaging and direct. Part III: Dark Matter and the Universe The final section connects dark matter to galaxy formation. It explains how unseen mass affects galaxy dynamics. Dwarf galaxies and their satellite problems also appear. The narrative uses simple terms to explain complex interactions. Moreover, it emphasizes dark matter halos as fundamental components. The discussion stays relevant to both theory and observation. Conclusion: Embracing the Mystery "Beyond the Visible: The Search for Dark Matter" captivates the mind. It bridges past discoveries and future possibilities. Each chapter builds on its predecessor. Moreover, the text uses clear examples and transition words. The reader learns about galaxy rotation and cosmic webs. Furthermore, dark matter detection becomes accessible through engaging narratives. This book serves as a guide. It invites readers to join a scientific quest. It also inspires curiosity about the unseen universe. Additionally, it highlights experiments and theories alike. Ultimately, the book fuels enthusiasm for astrophysics. In summary, it offers a unique perspective on dark matter research. The narrative stays precise and concise. Every sentence drives the point home. The active voice throughout the text maintains energy. Moreover, transition words ensure smooth readability. The work stands as a beacon for dark matter enthusiasts. It explains advanced topics in simple terms. This captivating guide embraces mystery. It educates and excites the curious mind. The book offers a roadmap for future research. It ignites passion for the cosmic unknown. Ultimately, the reader becomes part of a larger quest. The search for dark matter continues, and the book leads the way.
Searching For Dark Matter With Imaging Atmospheric Cherenkov Telescopes
DOWNLOAD
Author : Alessandro Montanari
language : en
Publisher: Springer Nature
Release Date : 2024-12-02
Searching For Dark Matter With Imaging Atmospheric Cherenkov Telescopes written by Alessandro Montanari and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-12-02 with Science categories.
This book provides a comprehensive review of the methodologies and searches for dark matter (DM) annihilation signals using very-high-energy gamma rays (VHE, E > 100 GeV), utilizing data from current Imaging Atmospheric Cherenkov Telescopes (IACTs) in the pre-Cherenkov Telescope Array (CTA) era. It presents the state-of-the-art statistical analysis methods and theoretical models related to TeV DM, applied to data from the H.E.S.S. telescope array, which is currently the most sensitive IACT array for observing the Galactic Center (GC), where the brightest DM annihilation signals are expected. The authors delve into the astrophysics of VHE gamma-ray production through cosmic ray acceleration. They explain the Imaging Atmospheric Cherenkov technique, describe the H.E.S.S. array, and discuss possibilities for DM annihilation-induced gamma-ray spectra and DM distribution profiles. By employing advanced statistical methods, they search for weak signals in the GC region using the H.E.S.S. Inner Galaxy Survey dataset and address systematic uncertainties. The authors present and debate the most constraining results on TeV dark matter models. Finally, this book presents the sensitivity of current IACTs to DM annihilation signals using IGS mock datasets, accounting for systematic and instrumental uncertainties. Detection prospects for canonical TeV DM models, such as the Wino, Higgsino, and quintuplet, are discussed. Sensitivity benchmarks on indirect DM searches with IACTs using H.E.S.S. as an example are provided, setting the stage for future developments in the CTA era. It serves as a consolidated resource for graduate students and researchers, presenting methodologies that could lead to significant advancements in the quest to understand dark matter.
Particle Dark Matter
DOWNLOAD
Author : Gianfranco Bertone
language : en
Publisher: Cambridge University Press
Release Date : 2010-01-07
Particle Dark Matter written by Gianfranco Bertone and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-07 with Science categories.
Dark matter is among the most important open problems in modern physics. Aimed at graduate students and researchers, this book describes the theoretical and experimental aspects of the dark matter problem in particle physics, astrophysics and cosmology. Featuring contributions from 48 leading theorists and experimentalists, it presents many aspects, from astrophysical observations to particle physics candidates, and from the prospects for detection at colliders to direct and indirect searches. The book introduces observational evidence for dark matter along with a detailed discussion of the state-of-the-art of numerical simulations and alternative explanations in terms of modified gravity. It then moves on to the candidates arising from theories beyond the Standard Model of particle physics, and to the prospects for detection at accelerators. It concludes by looking at direct and indirect dark matter searches, and the prospects for detecting the particle nature of dark matter with astrophysical experiments.
Aspects Of Wimp Dark Matter Searches At Colliders And Other Probes
DOWNLOAD
Author : Enrico Morgante
language : en
Publisher: Springer
Release Date : 2017-10-05
Aspects Of Wimp Dark Matter Searches At Colliders And Other Probes written by Enrico Morgante and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-05 with Science categories.
This thesis covers several theoretical aspects of WIMP (weakly interacting massive particles) dark matter searches, with a particular emphasis on colliders. It mainly focuses on the use of effective field theories as a tool for Large Hadron Collider (LHC) searches, discussing in detail the issue of their validity, and on simplified dark matter models, which are receiving a growing attention from the physics community. It highlights the theoretical consistency of simplified models, which is essential in order to correctly exploit their potential and for them to be a common reference when comparing results from different experiments. This thesis is of interest to researchers (both theorists and experimentalists) in the field of dark matter searches, and offers a comprehensive introduction to dark matter and to WIMP searches for students and non-experts.
Search For Dark Matter With The Atlas Detector
DOWNLOAD
Author : Johanna Gramling
language : en
Publisher: Springer
Release Date : 2018-08-01
Search For Dark Matter With The Atlas Detector written by Johanna Gramling and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-01 with Science categories.
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.
Optimized Dark Matter Searches In Deep Observations Of Segue 1 With Magic
DOWNLOAD
Author : Jelena Aleksić
language : en
Publisher: Springer
Release Date : 2015-11-06
Optimized Dark Matter Searches In Deep Observations Of Segue 1 With Magic written by Jelena Aleksić and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-06 with Science categories.
This thesis presents the results of indirect dark matter searches in the gamma-ray sky of the near Universe, as seen by the MAGIC Telescopes. The author has proposed and led the 160 hours long observations of the dwarf spheroidal galaxy Segue 1, which is the deepest survey of any such object by any Cherenkov telescope so far. Furthermore, she developed and completely characterized a new method, dubbed “Full Likelihood”, that optimizes the sensitivity of Cherenkov instruments for detection of gamma-ray signals of dark matter origin. Compared to the standard analysis techniques, this novel approach introduces a sensitivity improvement of a factor of two (i.e. it requires 4 times less observation time to achieve the same result). In addition, it allows a straightforward merger of results from different targets and/or detectors. By selecting the optimal observational target and combining its very deep exposure with the Full Likelihood analysis of the acquired data, the author has improved the existing MAGIC bounds to the dark matter properties by more than one order of magnitude. Furthermore, for particles more massive than a few hundred GeV, those are the strongest constraints from dwarf galaxies achieved by any gamma-ray instrument, both ground-based or space-borne alike.
Proceedings Of The Gamma Ray Observatory Science Workshop
DOWNLOAD
Author : W. Neil Johnson
language : en
Publisher:
Release Date : 1989
Proceedings Of The Gamma Ray Observatory Science Workshop written by W. Neil Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Astrophysics categories.
Energy And Water Development Appropriations For 2006 Part 4b 109 1 Hearings
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2005
Energy And Water Development Appropriations For 2006 Part 4b 109 1 Hearings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.