Download or read book Measurement of the Double Beta Decay Half life of sup 136 Xe in KamLAND Zen written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results from the KamLAND-Zen double-beta decay experiment based on an exposure of 77.6 days with 129 kg of 136Xe. The measured two-neutrino double-beta decay half-life of 136Xe is T{sup 2[nu]}{sub 1/2} = 2:38 ± 0:02(stat) ±0.14(syst) x1021 yr, consistent with a recent measurement by EXO-200. We also obtain a lower limit for the neutrinoless double-beta decay half-life, T{sup 0[nu]}{sub 1/2}> 5.7 x 1024 yr at 90% C.L.
Download or read book Measurement of the Double Decay Half life of 136Xe with the KamLAND Zen Experiment written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results from the KamLAND-Zen double-beta decay experiment based on an exposure of 77.6 days with 129 kg of 136Xe. The measured two-neutrino double-beta decay half-life of 136Xe is T$2?top½$ = 2.38 ± 0.02(stat) ± 0.14(syst) x1021 yr, consistent with a recent measurement by EXO-200. We also obtain a lower limit for the neutrinoless double-beta decay half-life, T$0?top½$ > 5.7 x 1024 yr at 90% C.L.
Download or read book Search for Double beta Decay of 136Xe to Excited States of 136Ba with the KamLAND Zen Experiment written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the Xe 136 Two neutrino Double Beta Decay Half life with the NEXT White Detector written by Alberto Usón Andrés and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Limits on Majoron Emitting Double Beta Decays of 136Xe in KamLAND Zen written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Particle and Astroparticle Physics written by Alessandro De Angelis and published by Springer. This book was released on 2015-09-05 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, written by researchers who had been professionals in accelerator physics before becoming leaders of groups in astroparticle physics, introduces both fields in a balanced and elementary way, requiring only a basic knowledge of quantum mechanics on the part of the reader. The new profile of scientists in fundamental physics ideally involves the merging of knowledge in astroparticle and particle physics, but the duration of modern experiments is such that people cannot simultaneously be practitioners in both. Introduction to Particle and Astroparticle Physics is designed to bridge the gap between the fields. It can be used as a self-training book, a consultation book, or a textbook providing a “modern” approach to particles and fundamental interactions.
Download or read book Double Beta Decay in 136Xe written by Roland Lüscher and published by . This book was released on 1999 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Search for Double Beta Decay in 136XE with a Time Projection Chamber written by Henry Tsz-king Wong and published by . This book was released on 1991 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Double Beta decay written by Rolf G. Winter and published by . This book was released on 1951 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Double Beta Decay in 136Xe written by and published by . This book was released on 1986 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the Double Beta Decay Half life of 150Nd and Search for Neutrinoless Decay Modes with the Nemo 3 Detector written by Nasim Fatemi-Ghomi and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On Double Beta Decay Half Life Time Systematics written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recommended 2[beta](2[nu]) half-life values and their systematics were analyzed in the framework of a simple empirical approach. T12{sup 2{nu}} ≈ 1/E8 trend has been observed for {sup 128,130}Te recommended values. This trend was used to predict T12{sup 2{nu}} for all isotopes of interest. Current results were compared with other theoretical and experimental works.
Download or read book Search for Neutrinoless Double Beta Decay in 136Xe with EXO 200 written by and published by . This book was released on 2015 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systematics of Evaluated Double Beta Decay Half Life Times written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Half Life for Double Beta Decay written by and published by . This book was released on 1949 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fireman(1) has reported the results of a rather difficult beta-particle coincidence counting experiment in which the decay of Sn124 by the simultaneous emission of two negative beta-particles, with a half-life between 0.4 x 1016 years and 0.9 x 1016 years, seems to have been observed. This note reports the results obtained from a different and somewhat simpler method of looking for the phenomenon of simultaneous emission of two beta-particles. These results are negative so far and show that this process is considerably less probable in the case chosen by us than in that reported by Fireman. The method consists of looking in uranium samples for 90-year Pu238 which would come from U238 by the double beta-particle mechanism since Np238 is heavier than U238, which in turn is substantially heavier than Pu238, in the isobaric triplet 92U238-93Np238-94Pu238. This chemical method of investigation is particularly applicable to this isobaric triplet because there appears to be no other mechanisms to account for the Pu238 should it be found. The energetics of the situation are summarized in the following diagram, where the disintegration energies are derived from sources which may be traced through a recent compilation.
Download or read book Searching for Double Beta Decay with the Enriched Xenon Observatory written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Enriched Xenon Observatory (EXO) Collaboration is building a series of experiments to search for the neutrinoless double beta decay of 136Xe. The first experiment, known as EXO-200, will utilize 200 kg of xenon enriched to 80% in the isotope of interest, making it the largest double beta decay experiment to date by one order of magnitude. This experiment is rapidly being constructed, and will begin data taking in 2007. The EXO collaboration is also developing a technique to identify on an event-by-event basis the daughter barium ion of the double beta decay. If successful, this method would eliminate all conventional radioactive backgrounds to the decay, resulting in an ideal experiment. We summarize here the current status of EXO-200 construction and the barium tag R & D program.
