10 research outputs found

    Dark Matter Search with CUORE-0 and CUORE

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    The Cryogenic Underground Observatory for Rare Events (CUORE) is a ton-scale experiment made of TeO2 bolometers that will probe the neutrinoless double beta decay of 130Te. Excellent energy resolution, low threshold and low background make CUORE sensitive to nuclear recoils, allowing a search for dark matter interactions. With a total mass of 741 kg of TeO2, CUORE can search for an annual modulation of the counting rate at low energies. We present data obtained with CUORE-like detectors and the prospects for a dark matter search in CUORE-0, a 40-kg prototype, and CUORE

    CUORE and Beyond: Bolometric Techniques to Explore Inverted Neutrino Mass Hierarchy

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    The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of 130Te. With 741 kg of TeO2 crystals and an excellent energy resolution of 5 keV (0.2%) at the region of interest, CUORE will be one of the most competitive neutrinoless double beta decay experiments on the horizon. With five years of live time, CUORE projected neutrinoless double beta decay half-life sensitivity is 1.6 × 1026 y at 1σ (9.5 × 1025 y at the 90% confidence level), which corresponds to an upper limit on the effective Majorana mass in the range 40–100 meV (50–130 meV). Further background rejection with auxiliary light detector can significantly improve the search sensitivity and competitiveness of bolometric detectors to fully explore the inverted neutrino mass hierarchy with 130Te and possibly other double beta decay candidate nuclei

    The physical and chemical properties of eumelanin

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    In this article, we review the current state of knowledge concerning the physical and chemical properties of the eumelanin pigment. We examine properties related to its photoprotective functionality, and draw the crucial link between fundamental molecular structure and observable macroscopic behaviour. Where necessary, we also briefly review certain aspects of the pheomelanin literature to draw relevant comparison. A full understanding of melanin function, and indeed its role in retarding or promoting the disease state, can only be obtained through a full mapping of key structure-property relationships in the main pigment types. We are engaged in such an endeavor for the case of eumelanin

    First data from CUORE-0

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    AbstractCUORE-0 is an experiment built to test and demonstrate the performance of the upcoming CUORE experiment. Com- posed of 52 TeO2 bolometers of 750g each, it is expected to reach a sensitivity to the 0νββ half-life of 130Te around 3 · 1024 y in one year of live time. We present the first data, corresponding to an exposure of 7.1kg y. An analysis of the background indicates that the CUORE sensitivity goal is within reach, validating our techniques to reduce the α radioactivity of the detector

    Results of CUORE-0 and prospects for the CUORE experiment

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    International audienceThe CUORE (Cryogenic Underground Observatory for Rare Events) experiment is an array of 741 kg of TeO2 bolometers to search for neutrinoless double beta decay (beta beta 0 nu) of Te-130. The detector is being constructed at the Laboratori Nazionali del Gran Sasso (Italy) where it will start operation in 2015. To test and demonstrate the possibility of realising such a large scale bolometric detector, a prototype (CUORE-0) has been realised. The CUORE-0 detector is a single tower of 52 CUORE-like bolometers. CUORE-0 data taking started in Spring 2013. The status of CUORE and the first CUORE-0 data are here reported

    CUORE

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    Physicists have searched for Neutrinoless Double Beta Decay (0v\u3b2\u3b2) for about a half a century. Developed over the latest 20 years, the bolometric technique is today used by one of the most competitive experimentsin the field: CUORE, a ton-size detector aiming for a sensitivity of 3c1026 yr on 130Te 0v\u3b2\u3b2 decay half-life. With the final step of its construction nearly completed, CUORE will start its operation by the end of the current year. Meanwhile, the first CUORE-like tower is operated at Laboratori Nazionali del Gran Sasso as an independent 0v\u3b2\u3b2 experiment. Named CUORE-0, it represents the state of the art for large-mass, low-background, ultra-lowtemperature bolometer arrays. Besides being a competitive 0v\u3b2\u3b2 decay search, it has validated the ultraclean assembly techniques and radiopurity of materials for the upcoming CUORE experiment. Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence

    Results of CUORE-0 and prospects for the CUORE experiment

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    The CUORE (Cryogenic Underground Observatory for Rare Events) experiment is an array of 741 kg of TeO2 bolometers to search for neutrinoless double beta decay (\u3b2\u3b20\u3bd) of 130Te. The detector is being constructed at the Laboratori Nazionali del Gran Sasso (Italy) where it will start operation in 2015. To test and demonstrate the possibility of realising such a large scale bolometric detector, a prototype (CUORE-0) has been realised. The CUORE-0 detector is a single tower of 52 CUORE-like bolometers. CUORE-0 data taking started in Spring 2013. The status of CUORE and the first CUORE-0 data are here reported

    Status of the CUORE and results from the CUORE-0 neutrinoless double beta decay experiments

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    CUORE is a 741 kg array of TeO2 bolometers for the search of neutrinoless double beta decay of 130Te. The detector is being constructed at the Laboratori Nazionali del Gran Sasso, Italy, where it will start taking data in 2015. If the target background of 0.01 counts/(keV.kg.y) will be reached, in five years of data taking CUORE will have a 1\u3c3 half life sensitivity of 1026 y. CUORE-0 is a smaller experiment constructed to test and demonstrate the performances expected for CUORE. The detector is a single tower of 52 CUORE-like bolometers that started taking data in spring 2013. The status and perspectives of CUORE will be discussed, and the first CUORE-0 data will be presented
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