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Design Of Apparatus For A Sterile Neutrino Search Using 131 Cs
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Book Synopsis Design of Apparatus for a Sterile Neutrino Search Using 131-Cs by : Xunzhen Yu
Download or read book Design of Apparatus for a Sterile Neutrino Search Using 131-Cs written by Xunzhen Yu and published by . This book was released on 2021 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: The unveiling of neutrino oscillation from observing the change in solar neutrino flux triggered physicists' interest in studying the nature of the neutrino mass. The prevailing theory of explaining the tiny neutrino mass is called the "see-saw" mechanism, which postulates that the neutrino flavor eigenstate is the mixing between mass eigenstate of active neutrinos of a small mass and (left-) right-handed "sterile" (anti-)neutrinos of a large mass. The sterile neutrino is believed to be a new physics beyond the Standard Model, which can explain many other outstanding physical problems, like warm dark matter, asymmetry of baryon, etc. The HUNTER (Heavy Unseen Neutrinos from the Total Energy-momentum Reconstruction) experiment is a collaboration for searching for keV-mass range sterile neutrinos, and brings together an interdisciplinary team of researchers from Temple University, UCLA, Princeton University and the University of Hustonto develop an apparatus capable of searching for sterile neutrinos with high precision. In the HUNTER proposal, the radiation source generating neutrinos will be a cloud of atoms laser cooled and suspended by laser beams, the decay products except neutrinos will be detected by corresponding detectors, and their initial vector momenta will be reconstructed from the data recorded by the corresponding detectors. The missing mass in the decay, taken away by the neutrino, can then be evaluated from the energy and momentum conservation. The radiation sources of electron-capture decay are preferred for laboratory neutrino experiments because of the absence of energetic electrons in the decay products. 131-Cs is chosen by HUNTER to study the sterile neutrino mass and the mixing between sterile neutrinos and active neutrinos because of its short lifetime, simply decay products, and its alkali element spectral structure which enhances laser cooling and trapping. The Phase 1 HUNTER experiment targeting sterile neutrinos in the range 20-300 keV/c^2 requires the design of spectrometers with momentum resolution of a part in a thousand or better. To detect a 131-Xe ion, a spectrometer consisting of numbers of annular electrodes has been designed. The potentials of the electrodes of the ion spectrometer were carefully optimized to form an electrostatic lens, with time focusing and spatial focusing to achieve a high momentum resolution for ions despite the extended source presented by the magneto-optical trap. The optimization algorithm presented in this dissertation achieves a momentum precision of ∼0.12% (∼0.03%) for the high acceptance (high resolution) tune. An electron spectrometer was designed without "double focusing" for detecting the electrons produced in 131 Cs decays. The electron trajectories are guided by a uniform electric and magnetic field. An octagonal shaped, magnetic shield was designed to diminish the influence of external magnetic fields on the electron trajectories. The achieved electron momentum resolution is ∼0.1 keV including extended source effects, sufficient for the desired missing mass resolution. Other issues like the systematic errors of the ion spectrometer and the eddy current induced in the electrodes by periodically switching on/off the anti-Helmholtz coils of the magneto-optical trap were studied. The deformation of the spectrometer under its gravity was simulated using Autodesk Inventor.
Book Synopsis Sterile Neutrino Search with KATRIN - Modeling and Design-criteria of a Novel Detector System by : Marc Korzeczek
Download or read book Sterile Neutrino Search with KATRIN - Modeling and Design-criteria of a Novel Detector System written by Marc Korzeczek and published by . This book was released on 2020* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MINOS Sterile Neutrino Search written by and published by . This book was released on 2009 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Main Injector Neutrino Oscillation Search (MINOS) is a long-baseline accelerator neutrino experiment designed to measure properties of neutrino oscillation. Using a high intensity muon neutrino beam, produced by the Neutrinos at Main Injector (NuMI) complex at Fermilab, MINOS makes two measurements of neutrino interactions. The first measurement is made using the Near Detector situated at Fermilab and the second is made using the Far Detector located in the Soudan Underground laboratory in northern Minnesota. The primary goal of MINOS is to verify, and measure the properties of, neutrino oscillation between the two detectors using the [nu]{sub {mu}} → V{sub {tau}} transition. A complementary measurement can be made to search for the existence of sterile neutrinos; an oft theorized, but experimentally unvalidated particle. The following thesis will show the results of a sterile neutrino search using MINOS RunI and RunII data totaling ≈2.5 x 102° protons on target. Due to the theoretical nature of sterile neutrinos, complete formalism that covers transition probabilities for the three known active states with the addition of a sterile state is also presented.
Book Synopsis Search for Sterile Neutrinos Using the MiniBooNE Beam by : Michel Sorel
Download or read book Search for Sterile Neutrinos Using the MiniBooNE Beam written by Michel Sorel and published by . This book was released on 2005 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sterile Neutrino Search with the NOvA Detectors by : Harry Refael Hausner
Download or read book Sterile Neutrino Search with the NOvA Detectors written by Harry Refael Hausner and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOvA is a two-detector experiment designed to observe neutrino oscillations from $\nu_\mu$ to $\nu_e$ flavor states. Additionally, the location of the NOvA Near Detector is well situated to additionally observe short baseline oscillations to sterile neutrino states. We expand upon previous NOvA sterile neutrino searches by using a covariance matrix fitting technique. This analysis is the first with NOvA to directly include neutrino interactions in the Near Detector while fitting the data. The NOvA Near Detector's greater statistics to better constrain our Far Detector uncertainties in addition to increasing the range of $\Delta m^2_{41}$ to which we are sensitive.
Book Synopsis Sterile Neutrino Search with MINOS by : Alena V. Devan (Ph. D.)
Download or read book Sterile Neutrino Search with MINOS written by Alena V. Devan (Ph. D.) and published by . This book was released on 2015 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Search for Sterile Neutrinos Using the SoLid Detector by : Steven Samuel Manley
Download or read book The Search for Sterile Neutrinos Using the SoLid Detector written by Steven Samuel Manley and published by . This book was released on 2017 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for Sterile Neutrino Oscillations with the Prospect Experiment by : Pranava Teja Surukuchi
Download or read book Search for Sterile Neutrino Oscillations with the Prospect Experiment written by Pranava Teja Surukuchi and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Sterile-Neutrino Search with the MINOS Experiment by :
Download or read book A Sterile-Neutrino Search with the MINOS Experiment written by and published by . This book was released on 2010 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The MINOS experiment is a long-baseline neutrino oscillation experiment in the the NuMI beamline at Fermilab, USA. Using a near detector at 1 km distance from the neutrino production target, and a far detector at 735 km from the target, it is designed primarily to measure the disappearance of muon neutrinos. This thesis presents an analysis using MINOS data of the possibility of oscil- lation of the neutrinos in the NuMI beam to a hypothetical sterile flavour, which would have no Standard Model couplings. Such oscillations would result in a deficit in the neutral current interaction rate in the MINOS far detector relative to the expectation derived from the near detector data. The method used to identify neutral current and charged current events in the MINOS detectors is described and a new method of predicting and fitting the far detector spectrum presented, along with the effects of systematic uncertainties on the sterile neutrino oscillation analysis. Using this analysis, the fraction f{sub s} of the disappearing neutrinos that go to steriles is constrained to be below 0.15 at the 90% confidence level in the absence of electron neutrino appearance in the NuMI beam. With electron appearance at the CHOOZ limit, f{sub s}
Book Synopsis Sterile Neutrino Searches in US. by :
Download or read book Sterile Neutrino Searches in US. written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Alpha-, Beta- and Gamma-Ray Spectroscopy by : K. Siegbahn
Download or read book Alpha-, Beta- and Gamma-Ray Spectroscopy written by K. Siegbahn and published by Elsevier. This book was released on 2012-12-02 with total page 915 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alpha-, Beta- and Gamma-Ray Spectroscopy Volume 1 offers a comprehensive account of radioactivity and related low-energy phenomena. It summarizes progress in the field of alpha-, beta- and gamma-ray spectroscopy, including the discovery of the non-conservation of parity, as well as new experimental methods that elucidate the processes of weak interactions in general and beta-decay in particular. Comprised of 14 chapters, the book presents experimental methods and theoretical discussions and calculations to maintain the link between experiment and theory. It begins with a discussion of the interaction of electrons and alpha particles with matter. The book explains the elastic scattering of electrons by atomic nuclei and the interaction between gamma-radiation and matter. It then introduces topic on beta-ray spectrometer theory and design and crystal diffraction spectroscopy of nuclear gamma rays. Moreover, the book discusses the applications of the scintillation counter; proportional counting in gases; and the general processes and procedures used in determining disintegration schemes through a study of the beta- and gamma-rays emitted. In addition, it covers the nuclear shell model; collective nuclear motion and the unified model; and alpha-decay conservation laws. The emissions of gamma-radiation during charged particle bombardment and from fission fragments, as well as the neutron-capture radiation spectroscopy, are also explained. Experimentalists will find this book extremely useful.
Book Synopsis Particle Physics Reference Library by : Christian W. Fabjan
Download or read book Particle Physics Reference Library written by Christian W. Fabjan and published by Springer Nature. This book was released on 2020 with total page 1083 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second open access volume of the handbook series deals with detectors, large experimental facilities and data handling, both for accelerator and non-accelerator based experiments. It also covers applications in medicine and life sciences. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access
Book Synopsis Principles of Electron Optics by : Peter W. Hawkes
Download or read book Principles of Electron Optics written by Peter W. Hawkes and published by Academic Press. This book was released on 2012-12-02 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three volumes in the PRINCIPLES OF ELECTRON OPTICS Series constitute the first comprehensive treatment of electron optics in over forty years. While Volumes 1 and 2 are devoted to geometrical optics, Volume 3 is concerned with wave optics and effects due to wave length. Subjects covered include: Derivation of the laws of electron propagation from SchrUdinger's equation Image formation and the notion of resolution The interaction between specimens and electrons Image processing Electron holography and interference Coherence, brightness, and the spectral function Together, these works comprise a unique and informative treatment of the subject. Volume 3, like its predecessors, will provide readers with both a textbook and an invaluable reference source.
Book Synopsis Measurements of Neutrino Mass by : F. Ferroni
Download or read book Measurements of Neutrino Mass written by F. Ferroni and published by IOS Press. This book was released on 2009-09-29 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume offers a valuable insight into various aspects of the ongoing work directed at measuring neutrino mass. It took twenty years to refute the assertions of Bethe and Peierls that neutrinos were not observable, but it has since been realised that much can be learnt from these particles. The moral is, as Fiorini argues here, that the study of neutrinos was and remains demanding but rewarding. Subjects addressed in this volume include; clarifying the meaning of the Klapdor-Kleingrothaus results, probing the Majorana nature of neutrinos, observing lepton number violating effects for the first time, studying the end point of the spectrum in the search for neutrino masses and speculating whether it is possible to measure neutrino masses in cosmology. Lectures are enriched with rich historical overviews and valuable introductory material. Attention is also given to theoretical topics such as the evolution of the concept of mass in particle physics, a status report on neutrino oscillations and current discussion on neutrino masses. The reader is further reminded that neutrino masses may also have some bearing on the very origin of the matter among us, and have many deep links with other important lines of current physics research.
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 Antihydrogen and Fundamental Physics by : Michael Charlton
Download or read book Antihydrogen and Fundamental Physics written by Michael Charlton and published by Springer Nature. This book was released on 2020-07-19 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of high-precision antihydrogen spectroscopy has opened up the possibility of direct tests with unprecedented accuracy of some of the most fundamental principles of physics, notably Lorentz and CPT symmetry and the Einstein equivalence principle. This book reviews these principles, emphasising their interconnections in quantum field theory and general relativity and the special role of antimatter, and explores how they may be tested in current and forthcoming experiments on antihydrogen. Original research results relevant to the experimental programme of the ALPHA collaboration at CERN are presented, together with the implications for antihydrogen of proposed theories featuring novel `fifth-force' interactions.
Download or read book Neutrino Mass written by Guido Altarelli and published by Springer. This book was released on 2004-02-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews the current state of knowledge of neutrino masses and the related question of neutrino oscillations. After an overview of the theory of neutrino masses and mixings, detailed accounts are given of the laboratory limits on neutrino masses, astrophysical and cosmological constraints on those masses, experimental results on neutrino oscillations, the theoretical interpretation of those results, and theoretical models of neutrino masses and mixings. The book concludes with an examination of the potential of long-baseline experiments. This is an essential reference text for workers in elementary-particle physics, nuclear physics, and astrophysics.
