Download or read book Neutrino Astrophysics with the Askaryan Radio Array written by Jorge A. Torres and published by . This book was released on 2021 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutrinos of the highest energies ($>10^{17}$ eV), named ultra-high energy (UHE) neutrinos, provide a window to study the distant, most energetic universe. Other particle messengers, such as cosmic rays and high-energy ($>10^{15} eV$) gamma rays are deflected by magnetic fields or attenuated upon interaction with other particles as they travel, so they never reach the Earth. On the other hand, due to their small cross sections, an neutral charge, UHE neutrinos can eventually reach the Earth and be detected. However, having such a small cross section and very low flux requires immense detectors. One of these detectors is the Askaryan Radio Array (ARA) experiment, which is also the focus of this thesis, particularly on analysis. We first present a diffuse analysis for four years of data of ARA stations 2 and 3, which utilized more than 4 times the livetime of the previous ARA analysis, resulting in the best UHE flux limit set by ARA to date, and the best limit among in-ice radio experiments above $10^8$ GeV. We next report on assessing the signal polarization reconstruction capabilities of ARA with both simulation and data, and we show the impact that this can have in constraining the neutrino direction, which will be of the utmost importance for the rapidly developing field of multi-messenger astronomy. This work will inform the design and construction of the next-generation of in-ice Askaryan experiments such as RNO-G and IceCube-Gen2. Finally, we present the optimization of a source search of four years of data of ARA station 2 (A2), configuration 1. This lays the groundwork for extending this analysis to all the configurations and, ultimately, ARA station 3 (A3). This study pioneers ARA's efforts to study neutrinos from a point-source, and preliminary shows that the final efficiency is significantly larger than that obtained for our previous diffuse analysis. As ARA collects more data and improves its analysis efficiency, it is projected to have a leading limits on the diffuse flux of UHE neutrinos by the end of 2022. Also, the prospects of having an increased analysis for point-source analyses is good news for multi-messenger astronomy, as we optimistically envision joint searches with other observatories such as IceCube, HAWC, MAGIC, LAT, etc.

Download or read book Searching for Ultra high Energy Neutrinos with Data from a Prototype Station of the Askaryan Radio Array written by Eugene S. Hong and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The observed GZK cutoff in the cosmic ray spectrum has led to a strongly motivated expectation of an ultra-high energy (UHE) neutrino flux arising from the interactions between the highest energy cosmic rays and cosmic microwave background photons. Aside from these diffuse neutrinos, UHE neutrinos are also expected to be produced in the same astrophysics sources producing the UHE cosmic rays such as Gamma-Ray Bursts (GRB) and AGNs. Here, we discuss two UHE neutrino searches using data from the Askaryan Radio Array (ARA) prototype Testbed station: one search for a diffuse neutrino flux and another for neutrinos from GRBs. Testbed data from 2011 to 2012 are used for the searches in the thesis. We discuss how we define the analysis cuts, optimize the analysis cut parameters for maximum sensitivity to UHE neutrinos, estimate the number of background and neutrino events, and set neutrino flux constraints in the UHE region (>10^17eV). We use an optimistic flux model from Kotera et. al. 2010 as our baseline model and optimize our analysis cuts for this model. The GRB neutrino search follows the same analysis technique as the diffuse neutrino flux search with some modifications. A timing constraint for each GRB reduces the estimated background dramatically and therefore we can loosen some of our analysis cuts for the GRB neutrino search. We also present detailed descriptions about tools that are used for the searches such as AraSim, a Monte-Carlo simulation that we developed, and RaySolver, a code to carry out ray tracing in ice with a depth-dependent index of refraction model. We present constraints on the neutrino flux from the ARA Testbed for diffuse neutrinos and GRB neutrinos separately. These neutrino flux constraints and analysis techniques from the Testbed will provide a benchmark for the future deep ARA stations' analyses which are expected to improve neutrino flux constraints by a factor of three or more due to differences in the design of the stations.

Download or read book Development of a Sub glacial Radio Telescope for the Detection of GZK Neutrinos written by Thomas Meures and published by Springer. This book was released on 2015-05-29 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of the project presented in this book is to detect neutrinos created by resonant interactions of ultrahigh energy cosmic rays on the CMB photon field filling the Universe. In this pioneering first analysis, the author puts forward much of the analysis framework, including calibrations of the electronic hardware and antenna geometry, as well as the development of algorithms for event reconstruction and data reduction. While only two of the 37 stations planned for the Askaryan Radio Array were used in this assessment of 10 months of data, the analysis was able to exclude neutrino fluxes above 10 PeV with a limit not far from the best current limit set by the IceCube detector, a result which establishes the radio detection technique as the path forward to achieving the massive volumes needed to detect these ultrahigh energy neutrinos.

Download or read book Search for Ultra high Energy Neutrinos with the Askaryan Radio Array written by Ming-Yuan Lu and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutrinos act as unique messengers that bear exclusive information to help us understand the ultra-high energy universe of cosmic rays. The Askaryan Radio Array (ARA) is a neutrino telescope array under phased deployment near the South Pole aiming to discover and determine the ultra-high energy neutrino flux via detection of the Askaryan signal from neutrino-induced charged-particle showers in the Antarctic ice. This novel detection channel makes ARA the most cost-effective neutrino observatory in probing the neutrino flux from 100 PeV to 10 EeV. This thesis focuses on the data analysis of two ARA stations from 2013 to 2016 with a goal of searching for a diffuse neutrino flux. Event selection criteria reject low-quality data and thermal background. An interferometric technique taking into account the curved paths traveled by electromagnetic radiation in inhomogeneous ice is used for event reconstruction and signal-background differentiation. No neutrino candidate is observed in the end. As a result, the analysis places a 90 percent CL upper limit on the diffuse neutrino flux, which represents the best-reported limit from radio neutrino detectors at the energy of 1 EeV. The prospects of future analyses utilizing four times the presented data, as well as the design implication for upcoming radio neutrino detectors, are discussed towards the end.

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.

Download or read book A Neural Network based Ultra high Energy Neutrino Reconstruction Method with the Askaryan Radio Array written by Yue Pan and published by . This book was released on 2022 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra-high energy (UHE) neutrinos ($E_{\nu} > 10^{17}$~eV) are important messenger particles that can carry information about the most intense processes in the Universe, far beyond any experiment that human beings can do on Earth. They rarely interact with other particles, thus are not deflected or attenuated during propagation. Together with cosmic rays, gamma rays, and gravitational waves, an exciting new field of multi-messenger astronomy is growing.

Download or read book Acoustic and Radio EeV Neutrino Detection Activities written by Rolf Nahnhauer and published by World Scientific. This book was released on 2006 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction, history and theory. Early years of high energy neutrino physics in cosmic rays and neutrino astronomy (1957-1962) / I. Zheleznykh. Extremely energetic cosmic neutrinos: opportunities for astrophysics, particle physics, and cosmology / A. Ringwald. Comparison of GZK neutrino flux calculations* / D. Seckel et al. Investigation of event rates for different detector arrays and various extremely high energy models / J.K. Becker and W. Rhode (presented by J.K. Becker) -- Target material properties. Measurement of attenuation length for radio wave in natural rock salt samples concerning ultra high energy neutrino detection / M. Chiba et al. (presented by M. Chiba). Acoustic wave propagation in ice and salt* / B. Price. Experience on acoustic wave propagation in rock salt in the frequency range 1-100 kHz and conclusions with respect to the feasibility of a rock salt dome as neutrino detector / J. Eisenblätter et al. (presented by G. Manthei). Radio signals from photon beams in sand and salt / D. Williams et al. (presented by D. Williams). Broadband analysis of Askaryan pulses / P. Mioǐnović -- Simulation and propagation of signals. Hybrid scheme of simulation of electron-photon and electron-hadron cascades in dense medium at ultra-high energies / L.G. Dedenko et al. (presented by L.G. Dedenko). Structure function of excess charge in rock salt / Y. Watanabe et al. (presented by Y. Watanabe). Simulations of radio emission from electromagnetic showers in dense media / J. Alvarez-Muñiz et al. (presented by J. Alvarez-Muñiz). Monte Carlo simulations of radio emission from cosmic ray air showers / T. Huege and H. Falcke (presented by T. Huege). Simulation of radio signals from 1-10 TeV air showers using EGSnrc / R. Engel et al. (presented by A.A. Konstantinov) -- Signal processing and background reduction. Scaling of Askaryan pulses / D. Seckel. Signal processing for acoustic neutrino detection in water, ice and salt / S. Danaher. Experience from SAUND* / J. Vandenbroucke. An analysis approach to acoustic detection of extensive atmospheric showers / D. Zaborov -- Sensors and transmitters. Development of acoustic sensors for the ANTARES experiment / C. Naumann et al. (presented by C. Naumann). Measurements and simulation studies of Piezoceramics for acoustic particle detection / K. Salomon et al. Fiber laser hydrophones as pressure sensors / P.E. Bagnoli et al. (presented by C. Trono). Development of glaciophones and acoustic transmitters for ice / S. Böser et al. (presented by S. Böser). Preliminary results on hydrophones calibration with proton beam / A. Capone and G. de Bonis (presented by G. de Bonis) -- Experimental results I (acoustic). High frequency noise in Lake Baikal as a background for the acoustic detection of high energy neutrinos / V.M. Aynutdinov et al. (presented by N.M. Budnev). ITEP investigation of acoustic phenomena from high energy particles / V.S. Demidov et al. (presented by V. Lyashuk). Testing thermo-acoustic sound generation in water with proton and laser beams / K. Graf et al. (presented by K. Graf). Results from the SAUND I experiment* / J. Vandenbroucke. The NEMO acoustic test facility / G. Riccobene. First activities in acoustic detection of particles in UPV / M. Ardid et al. (presented by M. Ardid) -- Experimental results II (Cherenkov Radio). The upper limit to the EHE neutrino flux from observations of the moon with Kalyazin radio telescope / R.D. Dagkesamanskii et al. (presented by R.D. Dagkesamanskii). Using the Westerbork Radio Observatory to detect UHE cosmic particles interacting on the moon / J. Bacelar et al. (presented by J. Bacelar). Updated limits on the Ultra-High Energy (UHE) neutrino flux from the RICE experiment / Kravchenko et al. (presented by D. Besson). The ANITA cosmogenic neutrino experiment / P.W. Gorham et al. (presented by P. Miocinovic). Measuring the neutrino-nucleon cross section with SalSA / A. Connolly -- Experimental results III (Air Shower Radio). Radio detection of cosmic rays with LOPES / A. Horneffer et al. (presented by H. Falcke and A. Horneffer). Combined LOPES and KASCADE-GRANDE data analysis / A. Haungs et al. (presented by A. Haungs). Absolute calibration of the LOPES antenna system / S. Nehls et al. (presented by S. Nehls). CODALEMA: a cosmic ray air shower radio detection experiment / D. Ardouin et al. (presented by R. Dallier) -- Future projects I. The converted hydroacoustic array "MG-10M"--A basic module for a deep water neutrino-telescope / Y. Karlik and V. Svet (presented by V. Svet). A device for detection of acoustic signals from super high energy neutrinos / V.M. Aynutdinov et al. (presented by L.V. Pan'kov). The UK-ACoRNE group: present projects and future plans* / S. Danaher. ACoRNE simulation work / J. Perkin. Design considerations and sensitivity estimates for an acoustic neutrino detector / T. Karg et al. (presented by T. Karg) -- Future projects II. Study of acoustic ultra-high energy neutrino detection Phase II / N. Kurahashi. SPATS-a South Pole acoustic test setup / S. Böser et al. (presented by S. Böser). Integration of acoustic detection equipment into ANTARES / R. Lahmann et al. (presented by R. Lahmann). Overview of the LORD experiment (Lunar Orbital Radio Detector) / V.A. Chechin et al. (presented by V.A. Tsarev). Concept of the LORD experiment / V.A. Chechin et al. (presented by V.A. Chechin). Advanced detection methods of radio signals from cosmic rays for KASCADE Grande and Auder / H. Gemmeke et al. (presented by H. Gemmeke) -- Future projects III. Neutrino detection in salt domes under LOFAR / A.M. van den Berg. Introduction to the SalSA, a saltdome shower array as a GZK neutrino observatory (abstract only) / D. Saltzberg. Neutrino flavor identification in SalSA / P. Miočpinović. Simulation of a hybrid optical/radio/acoustic extension to icecube for EHE neutrino detection / J.A. Vandenbroucke et al. (presented by J.A. Vandenbroucke) -- Round table discussion. ARENA round table discussion summary / R. Nahnhauer -- Conference summary. ARENA 2005 Conference summary / J.G. Learned. ARENA workshop pictures. List of participants. *Contribution not received

Download or read book Neutrino Astrophysics with the ANTARES Telescope written by Vladimir Kulikovskiy and published by Springer. This book was released on 2015-06-22 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis is devoted to ANTARES, the first underwater neutrino telescope in the Mediterranean sea. As the main scientific analysis, a search for high-energy neutrino emission from the region of the Fermi bubbles has been performed using data from the ANTARES detector. A method for the background estimation using off-zones has been developed specially for this measurement. A new likelihood for the limits calculation which treats both observations in the on-zone and in the off-zone in the similar way and also includes different systematic uncertainties has been constructed. The analysis of 2008–2011 ANTARES data yielded a 1.2 σ excess of events in the Fermi bubble regions, compatible with the no-signal hypothesis. For the optimistic case of no energy cutoff in the flux, the upper limit is within a factor of three of the prediction of the purely hadronic model based on the measured gamma-ray flux. The sensitivity improves as more data are accumulated (more than 65% gain in the sensitivity is expected once 2012–2016 data are added to the analysis).

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.

Download or read book A Search for Cosmogenic Neutrinos with the Askaryan Radio Array written by Jonathan Paul Davies and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Neutrinos and Other Matters written by Frederick Reines and published by World Scientific. This book was released on 1991 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a collection of the scientific papers of Frederick Reines. Its publication is to commemorate the 70th birthday, in 1988, of this distinguished scientist. The selected papers here cover many aspects of his work in neutrino physics, astrophysics and conservation law tests. They have been divided into logical groupings, each introduced by a leading authority in that field, who helps the reader to see the reprinted articles with a better historical and scientific perspective.

Download or read book Large Area Networked Detectors For Particle Astrophysics written by Pierre Sokolsky and published by World Scientific. This book was released on 2022-09-09 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: The universe is pervaded by particles with extreme energies, millions of times greater than we can produce on Earth. They have been a mystery for over a century. Now, current and future experiments in particle astrophysics are leading us to answers to the most fundamental questions about them. How does nature accelerate the highest energy particles in the universe? Do new interactions between them occur at such extreme energies? Are there unknown aspects of spacetime that can be uncovered by studying these particles?This book brings together three fields within 'extreme astronomy': ultra-high-energy cosmic ray physics, neutrino astronomy, and gamma-ray astronomy, and discusses how each can help answer these questions. Each field is presented with a theoretical introduction that clearly elucidates the key questions scientists face. This is followed by chapters that discuss the current set of experiments — how they work and their discoveries. Finally, new techniques and approaches are discussed to solve the mysteries uncovered by the current experiments.

Download or read book Neutrino Astrophysics written by John N. Bahcall and published by Cambridge University Press. This book was released on 1989-07-28 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative text provides a lively, thought-provoking and informative summary of neutrino astrophysics. Neutrino astronomy is being revolutionized by the availability of new observational facilities. Theoretical work in astrophysics and in particle physics in increasing rapidly. The subject of solar neutrinos has many seemingly independent aspects, both in its theoretical basis (involving nuclear, atomic, and particle physics, geochemistry, and astronomy). For many physicists, solar neutrinos constitute the low-energy frontier of high-energy physics. Results from all these disciplines are combined here, providing a timely and unified discussion of the field. Each chapter begins with a succinct overview of material to be presented and ends with an annotated bibliography. For advanced undergraduate students, but will be essential reading for all researchers interested in the physics of neutrinos and what they reveal about the nature of the Universe.

Download or read book Neutrino Physics and Astrophysics written by Gianpaolo Bellini and published by IOS Press. This book was released on 2012 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains chapters based on 9 of the lectures delivered at the Enrico Fermi School of Physics Neutrino Physics and Astrophysics, held from 25 of July to 5 August 2011. The event was organized by the Italian Physical Society SIF jointly with the International School of Astro-particle Physics ISAPP, a network whose aim is to build up an astro-particle community of both astrophysicists and particle physicists.Included are chapters on Neutrino oscillation physics B. Kayser Double-beta decay E. Fiorini Light neutrinos in cosmology S. Pastor Neutrinos and the stars G.G. Raffelt High energy neutrinos and

Download or read book Physics and Astrophysics of Neutrinos written by Masataka Fukugita and published by Springer Science & Business Media. This book was released on 2013-12-14 with total page 947 pages. Available in PDF, EPUB and Kindle. Book excerpt: Observations of neutrinos being emitted by the supernova SN1987A, star neutrinos, and atmospheric neutrinos have provided new insights into astronomy, as well as new unresolved phenomena such as the solar neutrino problem, spurring investigative studies among particle physicists and astrophysicists. One of the most important features of this book is its enumeration of a number of basic properties of neutrinos and their relationship to Grand Unified Theories, focusing on the origin of the neutrino's mass and the generation mixing of neutrinos. All the kamiokande results, detector performances, and complete references are included.

Download or read book Physics of Neutrinos written by Masataka Fukugita and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: This useful text provides a survey of the current state of research into the physics of neutrinos. It gives a global view of the areas of physics in which neutrinos play important roles, including astrophysics and cosmology.

Download or read book Neutrino Physics and Astrophysics written by Y. Suzuki and published by Elsevier. This book was released on 1999-07-28 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scientific program of these important proceedings was arranged to cover most of the field of neutrino physics. In light of the rapid growth of interest stimulated by new interesting results from the field, more than half of the papers presented here are related to the neutrino mass and oscillations, including atmospheric and solar neutrino studies. Neutrino mass and oscillations could imply the existence of a mass scale many orders of magnitudes higher than presented in current physics and will probably guide scientists beyond the standard model of particle physics.