Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
The Cuoricino Neutrinoless Double Beta Decay Experiment To Search For The Neutrino Mass Scale
Download The Cuoricino Neutrinoless Double Beta Decay Experiment To Search For The Neutrino Mass Scale full books in PDF, epub, and Kindle. Read online The Cuoricino Neutrinoless Double Beta Decay Experiment To Search For The Neutrino Mass Scale ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis The Cuoricino Neutrinoless Double-beta Decay Experiment to Search for the Neutrino Mass Scale by : Domingo Ricardo Artusa
Download or read book The Cuoricino Neutrinoless Double-beta Decay Experiment to Search for the Neutrino Mass Scale written by Domingo Ricardo Artusa and published by . This book was released on 2004 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sixty Years of Double Beta Decay by : Hans Volker Klapdor-Kleingrothaus
Download or read book Sixty Years of Double Beta Decay written by Hans Volker Klapdor-Kleingrothaus and published by World Scientific. This book was released on 2001 with total page 1313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear double beta decay is - together with proton decay - one of the most promising tools for probing beyond-the-standard-model physics on beyond-accelerator energy scales. It is already 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 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 & astrophysics, such as masses of heavy neutrinos, the sneutrino, SUSY models, compositeness, leptoquarks & right-handed W bosons. This invaluable book outlines the development of double beta research from its beginnings until its most recent achievements, & also presents the outlook for its highly exciting future. Readership: Particle physicists, nuclear physicists & astrophysicists.
Book Synopsis The Search for Neutrinoless Double Beta Decay in $^$Te With CUORE-0 by : Jonathan Loren Ouellet
Download or read book The Search for Neutrinoless Double Beta Decay in $^$Te With CUORE-0 written by Jonathan Loren Ouellet and published by . This book was released on 2015 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the design, operation and results of an experimental search for neutrinoless double beta decay (0$\nu\beta\beta$) of $^$Te using the CUORE-0 detector. The discovery of 0$\nu\beta\beta$ would have profound implications for particle physics and our understanding of the Universe. Its discovery would demonstrate the violation of lepton number and imply that neutrinos are Majorana fermions and therefore their own anti-particles. Combined with other experimental results, the discovery of 0$\nu\beta\beta$ could also have implications for understanding the absolute neutrino mass scale as well as the presently unknown neutrino mass hierarchy. The CUORE experiment is a ton-scale search for 0$\nu\beta\beta$ in $^$Te expected to begin operation in late 2015. The first stage of this experiment is a smaller 39-kg active-mass detector called CUORE-0. This detector contains 11~kg of $^$Te and operates in the Laboratori Nazionali del Gran Sasso lab in Italy from 2013 -- 2015. The results presented here are based on a $^\text{nat}$TeO$_2$ exposure of 35.2~kg$\cdot$yr, or 9.8~kg$\cdot$yr exposure of $^$Te collected between 2013 -- 2015. We see no evidence of 0$\nu\beta\beta$ and place an upper limit on the 0$\nu\beta\beta$ decay rate of $\Gamma_{0\nu\beta\beta}0.25\times10^{-24}$~yr$^{-1}$ (90\% C.L.), corresponding to a lower limit on the half-life of $T^{0\nu}_{1/2}2.8\times10^{24}$~yr (90\% C.L.). We combine the present result with the results of previous searches in $^$Te. Combining it with the 1.2~kg$\cdot$yr $^$Te exposure from the Three Towers Test run we place a half-life limit of $T_{1/2}^{0\nu}>3.3\times10^{24}$~yr (90\% C.L.). And combining these results with the 19.75~kg$\cdot$yr $^$Te exposure from CUORE-0ino, we place the strongest limit on the 0$\nu\beta\beta$ half-life of $^$Te to date, at $T^{0\nu}_{1/2}>4.5\times10^{24}$~yr (90\% C.L.). Using the present nuclear matrix element calculations for $^$Te, this result corresponds to a 90\% upper limit range on the effective Majorana mass of $m_{\beta\beta}
Book Synopsis The Search for Neutrinoless Double Beta Decay with 130Te with CUORE-0 by :
Download or read book The Search for Neutrinoless Double Beta Decay with 130Te with CUORE-0 written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the design, operation and results of an experimental search for neutrinoless double beta decay (0$\nu\beta\beta$) of $^$Te using the CUORE-0 detector. The discovery of 0$\nu\beta\beta$ would have profound implications for particle physics and our understanding of the Universe. Its discovery would demonstrate the violation of lepton number and imply that neutrinos are Majorana fermions and therefore their own anti-particles. Combined with other experimental results, the discovery of 0$\nu\beta\beta$ could also have implications for understanding the absolute neutrino mass scale as well as the presently unknown neutrino mass hierarchy. The CUORE experiment is a ton-scale search for 0$\nu\beta\beta$ in $^$Te expected to begin operation in late 2015. The first stage of this experiment is a smaller 39-kg active-mass detector called CUORE-0. This detector contains 11~kg of $^$Te and operates in the Laboratori Nazionali del Gran Sasso lab in Italy from 2013 -- 2015. The results presented here are based on a $^\text{nat}$TeO$_2$ exposure of 35.2~kg$\cdot$yr, or 9.8~kg$\cdot$yr exposure of $^$Te collected between 2013 -- 2015. We see no evidence of 0$\nu\beta\beta$ and place an upper limit on the 0$\nu\beta\beta$ decay rate of $\Gamma_\text{0$\nu\beta\beta$}0.25\times10^{-24}$~yr$^{-1}$ (90\% C.L.), corresponding to a lower limit on the half-life of $T^{0\nu}_1/22.8\times10^{24}$~yr (90\% C.L.). We combine the present result with the results of previous searches in $^$Te. Combining it with the 1.2~kg$\cdot$yr $^$Te exposure from the Three Towers Test run we place a half-life limit of $T_1/2^{0\nu}>3.3\times10^{24}$~yr (90\% C.L.). And combining these results with the 19.75~kg$\cdot$yr $^$Te exposure from CUORE-0ino, we place the strongest limit on the 0$\nu\beta\beta$ half-life of $^$Te to date, at $T^{0\nu}_1/2>4.5\times10^{24}$~yr (90\% C.L.). Using the present nuclear matrix element calculations for $^$Te, this result corresponds to a 90\% upper limit range on the effective Majorana mass of $m_{\beta\beta}
Book Synopsis Neutrinoless Double-beta Decay Search with CUORE and CUORE-0 Experiments by :
Download or read book Neutrinoless Double-beta Decay Search with CUORE and CUORE-0 Experiments written by and published by . This book was released on 2015 with total page 3004 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cryogenic Underground Observatory for Rare Events (CUORE) is an upcoming experiment designed to search for the neutrinoless double-beta decays. Observation of the process would unambiguously establish that neutrinos are Majorana particles and provide information on their absolute mass scale hierarchy. CUORE is now under construction and will consist of an array of 988 TeO2 crystal bolometers operated at 10 mK, but the first tower (CUORE-0) is already taking data. The experimental techniques used will be presented as well as the preliminary CUORE-0 results. The current status of the full-mass experiment and its expected sensitivity will then be discussed.
Book Synopsis A Measurement of the 2 Neutrino Double Beta Decay Rate of 130Te in the CUORICINO Experiment by : Laura Katherine Kogler
Download or read book A Measurement of the 2 Neutrino Double Beta Decay Rate of 130Te in the CUORICINO Experiment written by Laura Katherine Kogler and published by . This book was released on 2011 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: CUORICINO was a cryogenic bolometer experiment designed to search for neutrinoless double beta decay and other rare processes, including double beta decay with two neutrinos (2v beta beta). The experiment was located at Laboratori Nazionali del Gran Sasso and ran for a period of about 5 years, from 2003 to 2008. The detector consisted of an array of 62 TeO2 crystals arranged in a tower and operated at a temperature of ~10 mK. Events depositing energy in the detectors, such as radioactive decays or impinging particles, produced thermal pulses in the crystals which were read out using sensitive thermistors. The experiment included 4 enriched crystals, 2 enriched with 130Te and 2 with 128Te, in order to aid in the measurement of the 2v beta beta rate. The enriched crystals contained a total of ~350 g 130Te. The 128-enriched (130-depleted) crystals were used as background monitors, so that the shared backgrounds could be subtracted from the energy spectrum of the 130-enriched crystals. Residual backgrounds in the subtracted spectrum were fit using spectra generated by Monte-Carlo simulations of natural radioactive contaminants located in and on the crystals. The 2[nu] beta beta half-life was measured to be T1/2 = [9.81 plus/minus 0.96(stat) plus/minus 0.49(syst)] x 1020 y.
Book Synopsis First Results on Neutrinoless Double Beta Decay of Te-130 with the Calorimetric Cuoricino Experiment by :
Download or read book First Results on Neutrinoless Double Beta Decay of Te-130 with the Calorimetric Cuoricino Experiment written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The first results are reported on the limit for neutrinoless double decay of 13°Te obtained with the new bolometric experiment CUORICINO. The set-up consists of 44 cubic crystals of natural TeO2, 5 cm on the side and 18 crystals of 3 x 3 x 6 cm3. Four of these latter crystals are made with isotopically enriched materials: two in 128Te and two others in 13°Te . With a sensitive mass of (almost equal to)40 kg, our array is by far the most massive running cryogenic detector to search for rare events. The array is operated at a temperature of (almost equal to)10 mK in a dilution refrigerator under a heavy shield in the Gran Sasso Underground Laboratory at a depth of about 3500 m.w.e. The counting rate in the region of neutrinoless double beta decay is (almost equal to)0.2 counts keV−1 kg−1 year−1, among the lowest in this type of experiment. No evidence for neutrinoless double beta decay is found with the present statistics obtained in about three months with a live time of 72%. The corresponding lower limit for the lifetime of this process is of 5.5 x 1023 years at 90% C.L. The corresponding limit for the effective neutrino mass ranges between 0.37 to 1.9 eV depending on the theoretically calculated nuclear matrix elements used. This constraint is the most restrictive one except those obtained with Ge diodes, and is comparable to them.
Book Synopsis A Measurement of the 2 Neutrino Double Beta Decay Rate of Te-130 in the CUORICINO Experiment by :
Download or read book A Measurement of the 2 Neutrino Double Beta Decay Rate of Te-130 in the CUORICINO Experiment written by and published by . This book was released on 2011 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: CUORICINO was a cryogenic bolometer experiment designed to search for neutrinoless double beta decay and other rare processes, including double beta decay with two neutrinos (2v[beta][beta]). The experiment was located at Laboratori Nazionali del Gran Sasso and ran for a period of about 5 years, from 2003 to 2008. The detector consisted of an array of 62 TeO2 crystals arranged in a tower and operated at a temperature of 10 mK. Events depositing energy in the detectors, such as radioactive decays or impinging particles, produced thermal pulses in the crystals which were read out using sensitive thermistors. The experiment included 4 enriched crystals, 2 enriched with 130Te and 2 with 128Te, in order to aid in the measurement of the 2v[beta][beta] rate. The enriched crystals contained a total of 350 g 130Te. The 128-enriched (130-depleted) crystals were used as background monitors, so that the shared backgrounds could be subtracted from the energy spectrum of the 130- enriched crystals. Residual backgrounds in the subtracted spectrum were fit using spectra generated by Monte-Carlo simulations of natural radioactive contaminants located in and on the crystals. The 2v[beta][beta] half-life was measured to be T2v1/2 = [9.81± 0.96(stat)± 0.49(syst)] x1020 y.
Book Synopsis Search for Neutrinoless Double-Beta Decay of with CUORE-0 by :
Download or read book Search for Neutrinoless Double-Beta Decay of with CUORE-0 written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We report the results of a search for neutrinoless double-beta decay in a 9.8 kg yr exposure of 130Te using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are 5.1 ± 0.3 keV FWHM and 0.058 ± 0.004 (stat.) ± 0:002 (syst.) counts/(keV kg yr), respectively. The median 90% C.L. lower-limit sensitivity of the experiment is 2.9 x 1024 yr and surpasses the sensitivity of previous searches. We find no evidence for neutrinoless double-beta decay of 130Te and place a Bayesian lower bound on the decay half-life, T0$_1$1/2 > 2.7 x 1024 yr at 90% C.L. Combining CUORE-0 data with the 19.75 kg yr exposure of 130Te from the Cuoricino experiment we obtain T0$_1$1/2 > 4.0 x 1024 yr at 90% C.L. (Bayesian), the most stringent limit to date on this half-life. Using a range of nuclear matrix element estimates we interpret this as a limit on the effective Majorana neutrino mass, m??
Book Synopsis Sixty Years Of Double Beta Decay: From Nuclear Physics To Beyond Standard Model by : Hans Volker Klapdor-kleingrothaus
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.
Book Synopsis A New Limit on the Neutrinoless Double Beta Decay of 100mo by : Joseph Mario Krivicich
Download or read book A New Limit on the Neutrinoless Double Beta Decay of 100mo written by Joseph Mario Krivicich and published by . This book was released on 1988 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Why Search for Double Beta Decay by :
Download or read book Why Search for Double Beta Decay written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Searching for neutrinoless double beta decay is the only known practical method for trying to determine whether neutrinos are their own antiparticles. The theoretical motivation for supposing that they may indeed be their own antiparticles is described. The reason that it is so difficult to ascertain experimentally whether they are or are not is explained, as is the special sensitivity of neutrinoless double beta decay. The potential implications of the observation of this reaction for neutrino mass and for the physics of neutrinos is discussed.
Book Synopsis What Can We Learn from Neutrinoless Double Beta Decay Experiments? by :
Download or read book What Can We Learn from Neutrinoless Double Beta Decay Experiments? written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We assess how well next generation neutrinoless double beta decay and normal neutrino beta decay experiments can answer four fundamental questions. 1) If neutrinoless double beta decay searches do not detect a signal, and if the spectrum is known to be inverted hierarchy, can we conclude that neutrinos are Dirac particles? 2) If neutrinoless double beta decay searches are negative and a next generation ordinary beta decay experiment detects the neutrino mass scale, can we conclude that neutrinos are Dirac particles? 3) If neutrinoless double beta decay is observed with a large neutrino mass element, what is the total mass in neutrinos? 4) If neutrinoless double beta decay is observed but next generation beta decay searches for a neutrino mass only set a mass upper limit, can we establish whether the mass hierarchy is normal or inverted? We base our answers on the expected performance of next generation neutrinoless double beta decay experiments and on simulations of the accuracy of calculations of nuclear matrix elements.
Book Synopsis Searching for Neutrinoless Double-Beta Decay of 130Te with CUORE. by :
Download or read book Searching for Neutrinoless Double-Beta Decay of 130Te with CUORE. written by and published by . This book was released on 2015 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Results from the Cuoricino (Zero-Neutrino Double Beta) Decay Experiment by :
Download or read book Results from the Cuoricino (Zero-Neutrino Double Beta) Decay Experiment written by and published by . This book was released on 2007 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent results from the CUORICINO 13°Te zero-neutrino double-beta (0v[beta][beta]) decay experiment are reported. CUORICINO is an array of 62 tellurium oxide (TeO2) bolometers with an active mass of 40.7 kg. It is cooled to ≈8 mK by a dilution refrigerator shielded from environmental radioactivity and energetic neutrons. It is running in the Laboratori Nazionali del Gran Sasso (LNGS) in Assergi, Italy. These data represent 11.83 kg y or 90.77 mole-years of 13°Te. No evidence for 0v[beta][beta]-decay was observed and a limit of T12{sup 0v} (13°Te) ≥ 3.0 x 1024 y (90% C.L.) is set. This corresponds to upper limits on the effective mass, m{sub v}, between 0.19 and 0.68eV when analyzed with the many published nuclear structure calculations. In the context of these nuclear models, the values fall within the range corresponding to the claim of evidence of 0v[beta][beta]-decay by H.V. Klapdor-Kleingrothaus and his co-workers. The experiment continues to acquire data.
Book Synopsis Seventy Years Of Double Beta Decay: From Nuclear Physics To Beyond-standard-model Particle Physics by : Hans Volker Klapdor-kleingrothaus
Download or read book Seventy Years Of Double Beta Decay: From Nuclear Physics To Beyond-standard-model Particle Physics written by Hans Volker Klapdor-kleingrothaus and published by World Scientific. This book was released on 2010-03-25 with total page 1559 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last 20 years the disciplines of particle physics, astrophysics, nuclear physics and cosmology have grown together in an unprecedented way. A brilliant example is nuclear double beta decay, an extremely rare radioactive decay mode, which is one of the most exciting and important fields of research in particle physics at present and the flagship of non-accelerator particle physics.While already discussed in the 1930s, only in the 1980s was it understood that neutrinoless double beta decay can yield information on the Majorana mass of the neutrino, which has an impact on the structure of space-time. Today, double beta decay is indispensable for solving the problem of the neutrino mass spectrum and the structure of the neutrino mass matrix. The potential of double beta decay has also been extended such that it is now one of the most promising tools for probing beyond-the-standard-model particle physics, and gives access to energy scales beyond the potential of future accelerators.This book presents the breathtaking manner in which achievements in particle physics have been made from a nuclear physics process. Consisting of a 150-page highly factual overview of the field of double beta decay and a 1200-page collection of the most important original articles, the book outlines the development of double beta decay research — theoretical and experimental — from its humble beginnings until its most recent achievements, with its revolutionary consequences for the theory of particle physics. It further presents an outlook on the exciting future of the field.
Book Synopsis Towards a Precision Measurement of the Half Life of Neutrinoless Double Beta Decay of 136Xe by : Francisco Richard LePort
Download or read book Towards a Precision Measurement of the Half Life of Neutrinoless Double Beta Decay of 136Xe written by Francisco Richard LePort and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent neutrino oscillation experiments provide proof that neutrinos are massive par- ticles, but the absolute neutrino mass scale remains unknown. Observation of neu- trinoless double beta-decay (0vBB), a hypothetical nuclear transition, would provide information on the absolute neutrino mass scale. This decay violates lepton number conservation and requires that neutrinos are massive Majorana particles. Current limits on the half-life of 0vBB are in excess of 10^25 yr. The 200 kg Enriched Xenon Observatory experiment (EXO-200) is a double beta-decay exper- iment designed to improve upon this limit. It is currently in the early stages of commissioning at the Waste Isolation Pilot Plant near Carlsbad, New Mexico. This work discusses first the use of liquid xenon as source and detector medium for double beta decay. The design and construction of EXO-200 is then presented, including a detailed prediction of detector backgrounds and sensitivity.
