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Author : Lars Mohrmann
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (959 download)
Download or read book Characterizing Cosmic Neutrino Sources written by Lars Mohrmann and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexander Pizzuto
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book Hunting for Cosmic Neutrino Sources from Giga- to Exa-electronvolt with IceCube written by Alexander Pizzuto and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ever since the first observation of cosmic rays over a century ago, the origins of these high-energy particles have remained a mystery. Identifying and understanding the sources of these cosmic rays could provide invaluable insight into not only astrophysics but also fundamental particle physics. The IceCube Neutrino Observatory, a cubic-kilometer neutrino telescope, has made remarkable progress on this front -- first with the detection of a diffuse astrophysical neutrino flux in 2013, and later with the identification of a flaring blazar as a promising neutrino source. However, the sources of the vast majority of the diffuse neutrino flux remain unidentified. The goal of this thesis is to develop tools to identify astrophysical neutrino sources with current neutrino observatories. We show how analyzing neutrino data with new techniques could reveal an immense deal about the nature of the universe's most energetic particle accelerators. First, we describe a pipeline that uses realtime data to search for neutrino emission from astrophysical transients. Next, we look for neutrino emission in the direction of IceCube alert events to constrain populations of neutrino sources. We then present the first ever search for sub-TeV neutrino emission from novae. Lastly, we search for neutrino emission coincident with ANITA neutrino candidates, and show how IceCube can search for neutrinos with energies traditionally reserved for radio neutrino detectors. All of the analyses resulted in non-detections, and we present upper-limits for each. Our results include, but are not limited to, (1) the first constraints on neutrino emission from novae, (2) the first constraints on neutrino emission from fast radio bursts at a level more constraining than the diffuse astrophysical neutrino flux, (3) the first constraints on populations of day-scale transient neutrino sources, and (4) the first joint interpretation of very-high-energy optical Cherenkov neutrino data and ultra-high-energy radio neutrino data in the context of astrophysical neutrino sources. Although all of these analyses resulted in non-detections, these tools have already provided interesting constraints on the sources of high-energy neutrinos, and we are hopeful that the tools presented here will assist with the identification of cosmic neutrino sources in the years to come.
Author : Thomas K Gaisser
Publisher : World Scientific
ISBN 13 : 9814759422
Total Pages : 251 pages
Book Rating : 4.8/5 (147 download)
Download or read book Neutrino Astronomy: Current Status, Future Prospects written by Thomas K Gaisser and published by World Scientific. This book was released on 2017-03-20 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review volume is motivated by the recent discovery of high-energy astrophysical neutrinos by IceCube. The aim of the book is to bring together chapters on the status of current and future neutrino observatories with chapters on the implications and possible interpretations of the present observations and their upper limits. Each chapter is a mini-review of one aspect of the subject by leading experts. Taken together, the chapters constitute an up-to-date review of high-energy astrophysical neutrinos and their potential sources.
Author : Vernon Barger
Publisher : Princeton University Press
ISBN 13 : 1400845599
Total Pages : 239 pages
Book Rating : 4.4/5 (8 download)
Download or read book The Physics of Neutrinos written by Vernon Barger and published by Princeton University Press. This book was released on 2012-09-30 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: The physics of neutrinos--uncharged elementary particles that are key to helping us better understand the nature of our universe--is one of the most exciting frontiers of modern science. This book provides a comprehensive overview of neutrino physics today and explores promising new avenues of inquiry that could lead to future breakthroughs. The Physics of Neutrinos begins with a concise history of the field and a tutorial on the fundamental properties of neutrinos, and goes on to discuss how the three neutrino types interchange identities as they propagate from their sources to detectors. The book shows how studies of neutrinos produced by such phenomena as cosmic rays in the atmosphere and nuclear reactions in the solar interior provide striking evidence that neutrinos have mass, and it traces our astounding progress in deciphering the baffling experimental findings involving neutrinos. The discovery of neutrino mass offers the first indication of a new kind of physics that goes beyond the Standard Model of elementary particles, and this book considers the unanticipated patterns in the masses and mixings of neutrinos in the framework of proposed new theoretical models. The Physics of Neutrinos maps out the ambitious future facilities and experiments that will advance our knowledge of neutrinos, and explains why the way forward in solving the outstanding questions in neutrino science will require the collective efforts of particle physics, nuclear physics, astrophysics, and cosmology.
Author : Qinrui Liu
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (13 download)
Download or read book High-energy Cosmic Neutrinos as a Window to the Universe written by Qinrui Liu and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Universe is a natural laboratory for us to investigate physics. Neutrinos of cosmic origin are excellent messengers exploring astronomy, cosmology and particle physics, for they are tiny, neutral and weakly-interacting, which leads to undeflected and nearly unscathed travel across the Universe to Earth from their sources. They are an important piece in solving several significant open questions in physics such as the mystery of cosmic ray accelerators, as high-energy cosmic neutrinos play the role of a smoking-gun signal of hadronic interactions of cosmic rays; and the nature of dark matter as neutrinos can be produced in dark matter annihilation or decay, providing an indirect signature. The IceCube experiment discovered TeV-PeV neutrinos of astrophysical origin with an energy flux comparable to that of gamma rays and cosmic rays. One mission that comes afterwards is to identify where those neutrinos come from and how they are produced. In this dissertation, I will discuss the search for their astrophysical sources, emphasizing the efforts to identify neutrino sources in our Galaxy with IceCube data, focusing on pulsar wind nebulae and X-ray binaries. Like atmospheric neutrinos, the beam of cosmic neutrinos provides us with excellent opportunities to study physics beyond the standard model, e.g. dark matter annihilation and decay. Indirect searches of dark matter will be discussed with a focus on a new computation of neutrino signals from dark matter accumulated in multiple celestial environments.
Author : Rasa Muller
Publisher :
ISBN 13 : 9789464694222
Total Pages : 0 pages
Book Rating : 4.6/5 (942 download)
Download or read book Getting to the Point written by Rasa Muller and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The identification of cosmic objects emitting high energy neutrinos provides new insights about the Universe and its active sources. The existence of cosmic neutrinos has been proven by the IceCube collaboration, but the big question of which sources these neutrinos originate from remains largely unanswered. The KM3NeT detector for Astroparticle Research with Cosmics in the Abyss (ARCA), is currently being built in the Mediterranean Sea. In its full configuration with > 105 photomultiplier tubes installed it will have an instrumented volume of a cubic kilometre, and excel at identifying cosmic neutrino sources due to its unprecedented angular resolution ( 0.1 degree for muon neutrinos with E 20 TeV). KM3NeT has a view of the sky complementary to IceCube, and is sensitive to neutrinos across a wide range of energies. This dissertation presents the results of the first ever performed point source search with KM3NeT/ARCA with all available processed 2021-2022 data taken with an evolving detector geometry. The analysis did not show a significant excess of neutrinos for the searched candidate sources, but as the detector will grow, and it will keep accumulating data, the sensitivity will improve very fast. Especially in the southern hemisphere, where IceCube has less sensitivity due to its position at the South Pole, KM3NeT/ARCA may add an important contribution in the future of astroparticle physics."--
Author : Ali Kheirandish
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (972 download)
Download or read book Particle Astrophysics with Cosmic Neutrinos written by Ali Kheirandish and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: IceCube's discovery of cosmic neutrinos offers a unique view of our universe and provides powerful insights into some of the most energetic and enigmatic objects in the cosmos. Cosmic neutrinos reveal an unobstructed view at wavelengths where the universe is opaque to photons. The existence of the cosmic-neutrino flux has challenged our understanding of the universe. It is somewhat counterintuitive that the most surprising property of the observed flux is its magnitude. An immediate inference from the large neutrino flux observed by IceCube, which is predominantly extragalactic in origin, is that the total energy density of neutrinos in the high-energy universe is similar to that of photons. The matching energy densities of the extragalactic gamma-ray flux detected by Fermi and the high-energy neutrino flux measured by IceCube suggest the possibility of a common origin. Therefore, rather than detecting some exotic sources, it looks more likely that IceCube observes the same universe as astronomers do. The finding implies that a large fraction of the energy in the non-thermal universe originates in hadronic processes, indicating a larger level than previously thought. The focus of this dissertation is on identifying the sources of high-energy cosmic neutrinos observed in IceCube. Moreover, with the lack of confirmation to date of any source (type of sources) as the dominant contributor to the observed neutrino flux, we have studied prospects for observing different sources in IceCube by considering both transient and steady sources in the sky. Finally, we introduce new techniques to study the strength of neutrino dark matter interactions with the properties of high-energy cosmic neutrinos.
Author : Antonio Ereditato
Publisher : World Scientific
ISBN 13 : 9813226102
Total Pages : 580 pages
Book Rating : 4.8/5 (132 download)
Download or read book State Of The Art Of Neutrino Physics, The: A Tutorial For Graduate Students And Young Researchers written by Antonio Ereditato and published by World Scientific. This book was released on 2018-03-23 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: The neutrino is the most fascinating elementary particle due to its elusive nature and outstanding properties that have attracted the interest of generations of physicists since 1930, when it was first postulated by Wolfgang Pauli as a 'desperate remedy' to explain the apparent energy violation in the beta decay. Many fundamental discoveries in particle physics had the neutrino involved in one way or another. To date, neutrino physics is still one of the hottest topics of modern particle physics. Key experiments and significant theoretical developments have contributed in building up what we can call now the Standard Model of Neutrino Physics.The aim of the book is to provide graduate students and young researchers a comprehensive tutorial in modern neutrino physics, specially tailored with emphasis on the educational aspects. It provides an overview of the basics and of recent achievements in the field, from both experimental and theoretical points of view.
Author : Debanjan Bose
Publisher : Springer Nature
ISBN 13 : 3030912582
Total Pages : 75 pages
Book Rating : 4.0/5 (39 download)
Download or read book High Energy Astrophysical Neutrinos written by Debanjan Bose and published by Springer Nature. This book was released on 2021-12-07 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a pedagogical introduction to the likely sources of these neutrinos, their propagation and detection mechanisms. Detection of high energy neutrinos of extragalactic origin has led to an interdisciplinary field of research, involving astronomy, astrophysics and particle physics. An extensive review of various detectors and the observations is provided that consolidates the latest findings. Above a few tens of TeVs, neutrinos are conceived as more reliable messengers for astronomy than photons as these photons get absorbed in the background photon field. Determining the neutrino spectrum not only helps in exploring astrophysical objects like AGN, GRB, etc. but also allows us to study particle physics at unprecedented energies. This introductory book is intended to help advanced undergraduate and graduate students to get into the subject with ease, and it simultaneously caters to practicing theoretical or experimental physicists as a reference book.
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (99 download)
Download or read book Searches for Point-like Sources of Astrophysical Neutrinos with the IceCube Neutrino Observatory written by and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cosmic rays are accelerated to high energies in astrophysical objects, and create neutrinos when interacting with matter or photons. Observing a point source of high-energy astro-physical neutrinos would therefore be a smoking gun signature of cosmic ray acceleration. While evidence for a diffuse flux of astrophysical neutrinos was recently found, the origin of this flux is not yet known. We present three analyses searching for neutrino point sources with the IceCube Neutrino Observatory, a cubic kilometer Cherenkov detector located at the geographic South Pole. The analyses target astrophysical sources emitting neutrinos of all flavors, and cover energies from TeV to EeV. The first analysis searches point source emission of muon neutrinos using throughgoing muon tracks. The second analysis searches for spatial clustering among high-energy astrophysical neutrino candidate events, and is sensitive to neutrinos of all three flavors. The third analysis selects starting track events, muon neutrinos with interactions vertices inside the detector, to lower the energy threshold in the southern hemisphere. In each analysis, an un-binned likelihood method tests for spatial clustering of events anywhere in the sky as well as for neutrinos correlated with known gamma-ray sources. All results are consistent with the background-only hypothesis, and the resulting upper limits on E-2 neutrino emission are the most stringent throughout the entire sky. In the northern hemisphere, the upper limits are beginning to constrain emission models. In the southern hemisphere, the upper limits in the 100 TeV energy range are an order of magnitude lower than previous IceCube results, but are not yet probing predicted flux levels. By comparing the point source limits to the observed diffuse astrophysical neutrino flux, we also constrain the minimum number of neutrino sources and investigate the properties of potential source populations contributing to the diffuse flux. Additionally, an a posteriori analysis of one of the highest energy starting track events determined it to be a 2.8 sigma fluctuation above the atmospheric background expectation. While a single event is not indicative of a point source, this is the most significant well-localized astrophysical neutrino candidate yet observed.
Author :
Publisher : World Scientific
ISBN 13 : 981464434X
Total Pages : 1556 pages
Book Rating : 4.8/5 (146 download)
Download or read book Wspc Handbook Of Astronomical Instrumentation, The (In 5 Volumes) written by and published by World Scientific. This book was released on 2021-05-07 with total page 1556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Review of Volume 4:'The Handbook can be a good reference for a higher-degree science student approaching the subject or for an expert in a similar field in astronomical instrumentation. The reader requiring an in-depth presentation of a specific topic will be guided by the rich reference lists included at the end of each chapter.'The ObservatoryOur goal is to produce a comprehensive handbook of the current state of the art of astronomical instrumentation with a forward view encompassing the next decade. The target audience is graduate students with an interest in astronomical instrumentation, as well as practitioners interested in learning about the state of the art in another wavelength band or field closely related to the one in which they currently work. We assume a working knowledge of the fundamental theory: optics, semiconductor physics, etc. The purpose of this handbook is to bring together some of the leading experts in the world to discuss the frontier of astronomical instrumentation across the electromagnetic spectrum and extending into multimessenger astronomy.
Author : Stefanie Wagner
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (91 download)
Download or read book Search for Cosmic Neutrino Emission from Milagro Sources with ANTARES written by Stefanie Wagner and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hans V. Klapdor
Publisher : Springer Science & Business Media
ISBN 13 : 3642736793
Total Pages : 339 pages
Book Rating : 4.6/5 (427 download)
Download or read book Neutrino Physics written by Hans V. Klapdor and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutrinos play an intriguing role in modern physics linking central questions of particle physics, cosmology and astrophysics. The contributions in this book reflect the present status of neutrino physics with emphasis on non-accelerator or beyond-accelerator experiments. Since a nonvanishing neutrino mass would yield an important boundary condition for GUT, SUSY or Superstring models and since neutrinos are the best candidates for dark matter in the universe, the many efforts to look for a neutrino mass, ranging from neutrino oscillation experiments using reactors, accelerators or the sun as neutrino sources, to tritium decay experiments and the search for neutrinoless double beta decay, are described in some detail. One of the sections is devoted to neutrinos from collapsing stars, including the supernova SN 1987 A. Possibilities for detecting cosmological neutrinos are discussed and an outlook to future experiments is given.
Author : Kai Zuber
Publisher : Taylor & Francis
ISBN 13 : 142006472X
Total Pages : 461 pages
Book Rating : 4.4/5 (2 download)
Download or read book Neutrino Physics written by Kai Zuber and published by Taylor & Francis. This book was released on 2011-08-03 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: When Kai Zuber's pioneering text on neutrinos was published in 2003, the author correctly predicted that the field would see tremendous growth in the immediate future. In that book, Professor Zuber provided a comprehensive self-contained examination of neutrinos, covering their research history and theory, as well as their application to particle p
Author : Arnold S. Lavro
Publisher : Nova Publishers
ISBN 13 : 9781590333365
Total Pages : 156 pages
Book Rating : 4.3/5 (333 download)
Download or read book Neutrinos written by Arnold S. Lavro and published by Nova Publishers. This book was released on 2002 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutrinos are one of the most abundant particles in the universe. Because they have very little interaction with matter, however, they are incredibly difficult to detect. Neutrinos are similar to the more familiar electron, with one crucial difference: neutrinos do not carry electric charge. Because neutrinos are electrically neutral, they are not affected by the electromagnetic forces which act on electrons. Three types of neutrinos are known. Each type or 'flavour' of neutrino is related to a charged particle (which gives the corresponding neutrino its name). Hence, the 'electron neutrino' is associated with the electron, and two other neutrinos are associated with heavier versions of the electron called the muon and the tau. The book presents citations from the literature for the last three years from the journal literature and the existent book literature. Access is provided by subject, author and title indexes.
Author :
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (873 download)
Download or read book Diagnostic Potential of Cosmic-neutrino Absorption Spectroscopy written by and published by . This book was released on 2004 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annihilation of extremely energetic cosmic neutrinos on the relic-neutrino background can give rise to absorption lines at energies corresponding to formation of the electroweak gauge boson Z°. The positions of the absorption dips are set by the masses of the relic neutrinos. Suitably intense sources of extremely energetic (1021 - 1025-eV) cosmic neutrinos might therefore enable the determination of the absolute neutrino masses and the flavor composition of the mass eigenstates. Several factors--other than neutrino mass and composition--distort the absorption lines, however. We analyze the influence of the time-evolution of the relic-neutrino density and the consequences of neutrino decay. We consider the sensitivity of the lineshape to the age and character of extremely energetic neutrino sources, and to the thermal history of the Universe, reflected in the expansion rate. We take into account Fermi motion arising from the thermal distribution of the relic-neutrino gas. We also note the implications of Dirac vs. Majorana relics, and briefly consider unconventional neutrino histories. We ask what kinds of external information would enhance the potential of cosmic-neutrino absorption spectroscopy, and estimate the sensitivity required to make the technique a reality.
Author : John N Bahcall
Publisher : World Scientific
ISBN 13 : 981449206X
Total Pages : 357 pages
Book Rating : 4.8/5 (144 download)
Download or read book Neutrino Physics: Its Impact On Particle Physics, Astrophysics And Cosmology - Proceedings Of The Carolina Symposium On Neutrino Physics written by John N Bahcall and published by World Scientific. This book was released on 2001-05-14 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutrinos play a key role in many areas of particle physics, nuclear physics and astrophysics. The recent discovery of neutrino oscillation has given the first hint of new physics beyond the standard model. Clearly, it is extremely important to study further the oscillation and other fundamental properties of neutrinos. It is also important to improve our knowledge of neutrino-nucleus reactions, which are crucial for understanding a large class of astrophysical phenomena. These and many other interesting questions can be investigated at stopped pion neutrino facilities like the one planned for the Spallation Neutron Source at the Oak Ridge National Laboratory.The purpose of the Carolina Symposium was twofold: (1) to explore and exchange ideas on the latest developments in general frontiers of neutrino physics and related fields; (2) to address specific issues pertaining to the above-mentioned stopped pion neutrino facility. Among the topics covered in the proceedings are: cosmology and neutrino; standard model tests with neutrinos; neutrino oscillation, experiments and theories; dark matter search; double beta-decay; rare events detection techniques; the solar neutrino problem; supernova explosion; nucleosynthesis; and the ORLaND project.
