Download or read book An Experimental Investigation of Double Beta Decay of 100 Mo written by Brian Lynn Dougherty and published by . This book was released on 1988 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Investigation of Double Beta Decay of 1 Mo written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: New limits on half-lives for several double beta decay modes of 1°°Mo were obtained with a novel experimental system which included thin source films interleaved with a coaxial array of windowless silicon detectors. Segmentation and timing information allowed backgrounds originating in the films to be studied in some detail. Dummy films containing 96Mo were used to assess remaining backgrounds. With 0.1 mole years of 1°°Mo data collected, the lower half-life limits at 90% confidence were 2.7 x 1018 years for decay via the two-neutrino mode, 5.2 x 1019 years for decay with the emission of a Majoron, and 1.6 x 102° years and 2.2 x 1021 years for neutrinoless 0 .-->. 2 and 0 .-->. 0+ transitions, respectively. 50 refs., 38 figs., 11 tabs.
Download or read book Seventy Years of Double Beta Decay written by H. V. Klapdor-Kleingrothaus and published by World Scientific. This book was released on 2010 with total page 1559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ch. 1. Double beta decay - historical retrospective and perspectives. 1.1. From the early days until the gauge theory era. 1.2. The nuclear physics side - nuclear matrix elements. 1.3. Double beta decay, neutrino mass models and cosmological parameters - status and prospects. 1.4. Other beyond standard model physics : from SUSY and leptoquarks to compositeness and space time structure. 1.5. The experimental race : from the late eighties to the discovery of [symbol] decay. 1.6. The future of double beta decay. 1.7. Conclusion -- ch. 2. Original articles. 2.1. From the early days until the gauge theory era. 2.2. The nuclear physics side - nuclear matrix elements. 2.3. Double beta decay, neutrino mass models and cosmological parameters - status and prospects. 2.4. Other beyond standard model physics : from SUSY and leptoquarks to compositeness and space time structure. 2.5. The experimental race : from the late eighties to the discovery of [symbol] decay. 2.6. The future of double beta decay
Download or read book Sixty Years Of Double Beta Decay From Nuclear Physics To Beyond Standard Model written by Hans Volker Klapdor-kleingrothaus and published by World Scientific. This book was released on 2001-04-30 with total page 1313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear double beta decay is one of the most promising tools for probing beyond-the-standard-model physics on beyond-accelerator energy scales. It is already now probing the TeV scale, on which new physics should manifest itself according to theoretical expectations. Only in the early 1980s was it known that double beta decay yields information on the Majorana mass of the exchanged neutrino. At present, the sharpest bound for the electron neutrino mass arises from this process. It is only in the last 10 years that the much more far-reaching potential of double beta decay has been discovered. Today, the potential of double beta decay includes a broad range of topics that are equally relevant to particle physics and astrophysics, such as masses of heavy neutrinos, of sneutrinos, as SUSY models, compositeness, leptoquarks, left-right symmetric models, and tests of Lorentz symmetry and equivalence principle in the neutrino sector. Double beta decay has become indispensable nowadays for solving the problem of the neutrino mass spectrum and the structure of the neutrino mass matrix — together with present and future solar and atmospheric neutrino oscillation experiments. Some future double beta experiments (like GENIUS) will be capable to be simultaneously neutrino observatories for double beta decay and low-energy solar neutrinos, and observatories for cold dark matter of ultimate sensitivity.This invaluable book outlines the development of double beta research from its beginnings until its most recent achievements, and also presents the outlook for its highly exciting future.
Download or read book Measurement of the double beta decay half life of 100Mo to the 0 1excited state and 48Ca to the ground state in the NEMO 3 experiment written by Shiva King and published by . This book was released on 2008 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: NEMO 3 is a double beta decay experiment situated in the Fréjus tunnel which runs between France and Italy. If neutrinoless double beta decay is observed it will prove the neutrino is a Majorana particle and may potentially become the most sensitive method of measuring the absolute neutrino mass. It would also have huge implications for not only particle physics, but also nuclear physics, astrophysics and cosmology. The study of two-neutrino double beta decay gives us a better understanding of the nuclear models used to calculate the nuclear matrix elements, which are so important in extracting new physics parameters from the neutrinoless double beta decay search. The purpose of this thesis is primarily to report on the measurement of the two neutrino double beta decay of two isotopes, {100}Mo and {48}Ca, currently inside the NEMO 3 detector. The double decay of {100}Mo to the O {+}_{1} excited state of {100}Ru is studied as well as the double beta decay of {48}Ca to the ground state of {48}Ti. The two neutrino half-life measurement for {100}Mo is found to be T {2\upsilon}_{1/2}(O +\rightarrow O {+}_1}) = 5.70 {+1.15}_{-0.82} (stat) \pm 0.77 (syst.) \times 10 {20} yrs. This being the first result where all the final states have been measured. For {48}Ca, the two neutrino half-life is T {2\upsilon}_{1/2}(g.s. \rightarrow g.s.) = 4.44 {+0.49}_{-0.40}(stat.) \pm 0.29 (syst.) \times 10 {19} yrs, which is the worlds most accurate measurement of this decay process. A limit on the neutrinoless double beta decay of {48}Ca has also been obtained.
Download or read book Sixty Years of Double Beta Decay written by H. V. Klapdor-Kleingrothaus and published by World Scientific. This book was released on 2001 with total page 1324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear double beta decay is one of the most promising tools for probing beyond-the-standard-model physics on beyond-accelerator energy scales. It is already now probing the TeV scale, on which new physics should manifest itself according to theoretical expectations. Only in the early 1980s was it known that double beta decay yields information on the Majorana mass of the exchanged neutrino. At present, the sharpest bound for the electron neutrino mass arises from this process. It is only in the last 10 years that the much more far-reaching potential of double beta decay has been discovered. Today, the potential of double beta decay includes a broad range of topics that are equally relevant to particle physics and astrophysics, such as masses of heavy neutrinos, of sneutrinos, as SUSY models, compositeness, leptoquarks, left-right symmetric models, and tests of Lorentz symmetry and equivalence principle in the neutrino sector. Double beta decay has become indispensable nowadays for solving the problem of the neutrino mass spectrum and the structure of the neutrino mass matrix OCo together with present and future solar and atmospheric neutrino oscillation experiments. Some future double beta experiments (like GENIUS) will be capable to be simultaneously neutrino observatories for double beta decay and low-energy solar neutrinos, and observatories for cold dark matter of ultimate sensitivity. This invaluable book outlines the development of double beta research from its beginnings until its most recent achievements, and also presents the outlook for its highly exciting future. Contents: Double Beta Decay OCo Historical Retrospective and Perspectives; Original Articles: From the Early Days until the Gauge Theory Era; The Nuclear Physics Side OCo Nuclear Matrix Elements; The Nuclear Physics Side OCo Nuclear Matrix Elements; Effective Neutrino Masses from Double Beta Decay, Neutrino Mass Models and Cosmological Parameters OCo Present Status and Prospects; Other Beyond Standard Model Physics: From SUSY and Leptoquarks to Compositeness and Quantum Foam; The Experimental Race: From the Late Eighties to the Future; The Future of Double Beta Decay; Appendices: Ten Years of HeidelbergOCoMoscow Experiment; The Potential Future OCo GENIUS. Readership: Particle physicists, nuclear physicists and astrophysicists."
Download or read book Handbook of Radioactivity Analysis written by Michael F. L'Annunziata and published by Elsevier. This book was released on 2012-12-02 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Radioactivity Analysis is written by experts in the measurement of radioactivity. The book describes the broad scope of analytical methods available and instructs the reader on how to select the proper technique. It is intended as a practical manual for research which requires the accurate measurement of radioactivity at all levels, from the low levels encountered in the environment to the high levels measured in radioisotope research. This book contains sample preparation procedures, recommendations on steps to follow, necessary calculations, computer controlled analysis, and high sample throughput techniques. Each chapter includes practical techniques for application to nuclear safety, nuclear safeguards, environmental analysis, weapons disarmament, and assays required for research in biomedicine and agriculture. The fundamentals of radioactivity properties, radionuclide decay, and methods of detection are included to provide the basis for a thorough understanding of the analytical procedures described in the book. Therefore, the Handbook can also be used as a teaching text. - Includes sample preparation techniques for matrices such as soil, air, plant, water, animal tissue, and surface swipes - Provides procedures and guidelines for the analysis of commonly encountered na
Download or read book Double beta Decay And Related Topics Proceedings Of The International Workshop Held At European Centre For Theoretical Studies Ect written by Sabin Stoica and published by World Scientific. This book was released on 1996-01-27 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings contain the lectures and contributions given at the workshop on double-beta decay and related topics, which was held at the ETC∗ (European Centre for Theoretical Studies), Trento, Italy, between April 24 and May 5, 1995.Double-beta decay is of prominent actuality nowadays. With the largely increased actuality of neutrino physics by recent observations and discussions of solar and atmospheric neutrino deficits, dark matter physics and neutrino oscillations and recent corresponding development in Grand Unified Theories, double-beta decay has attained a key position within these problems. The lectures of this Workshop treat the theoretical and experimental status, potential and perspectives of double-beta decay research and the intimate interrelations with the above mentioned and other topics from the view of particle, nuclear and astrophysics.
Download or read book An Experiment in Double Beta Decay written by John A. McCarthy and published by . This book was released on 1952 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental System for the Study of the Double Beta Decay Problem written by 吳良溪 and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "An Experimental System for the Study of the Double Beta Decay Problem" by 吳良溪, Leung-kai, Ng, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4212731 Subjects: Beta rays Nuclear counters
Download or read book Fundamentals of Neutrino Physics and Astrophysics written by Carlo Giunti and published by Oxford University Press. This book was released on 2007-03-15 with total page 727 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our Universe is made of a dozen fundamental building blocks. Among these, neutrinos are the most mysterious - but they are the second most abundant particles in the Universe. This book provides detailed discussions of how to describe neutrinos, their basic properties, and the roles they play in nature.
Download or read book An Experiment on Double Beta Decay written by Edward Leonard Fireman and published by . This book was released on 1949 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Particle Physics at the Year of 250th Anniversary of Moscow University written by A. I. Studenikin and published by World Scientific. This book was released on 2006 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Printbegrænsninger: Der kan printes 10 sider ad gangen og max. 40 sider pr. session.
Download or read book Proceedings of the Carolina Symposium on Neutrino Physics written by and published by World Scientific. This book was released on 2001 with total page 364 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.
Download or read book TAUP 89 written by Alessandro Bottino and published by Atlantica Séguier Frontières. This book was released on 1989 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurements of Neutrino Mass written by Fernando Ferroni and published by IOS Press. This book was released on 2009 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 Jacket.
