Search

Your search keyword '"Ventura G"' showing total 2,227 results
Start Over Author "Ventura G"
2,227 results on '"Ventura G"'

1. Direct use of eazyplex® SuperBug CRE assay from positive blood cultures in conjunction with inpatient infectious disease consulting for timely appropriate antimicrobial therapy in Escherichia coli and Klebsiella pneumoniae bloodstream infections

Author

Fiori B, D'Inzeo T, Posteraro B, Menchinelli G, Liotti FM, De Angelis G, De Maio F, Fantoni M, Murri R, Scoppettuolo G, Ventura G, Tumbarello M, Pennestrì F, Taccari F, Sanguinetti M, and Spanu T

Subjects
Escherichia coli, Klebsiella pneumoniae, bloodstream infection, drug resistance, targeted therapy, infectious disease consultation, Infectious and parasitic diseases, RC109-216
Abstract

Barbara Fiori,1–3,* Tiziana D’Inzeo,2,3,* Brunella Posteraro,4,5 Giulia Menchinelli,3 Flora Marzia Liotti,3 Giulia De Angelis,2,3 Flavio De Maio,3 Massimo Fantoni,6,7 Rita Murri,6,7 Giancarlo Scoppettuolo,6 Giulio Ventura,6 Mario Tumbarello,6,7 Francesco Pennestrì,4 Francesco Taccari,7 Maurizio Sanguinetti,2,3 Teresa Spanu2,31Scuola Provinciale Superiore di Sanità Claudiana, Bolzano, Italy; 2Fondazione Policlinico Universitario A. Gemelli IRCCS, Dipartimento di Scienze di Laboratorio e Infettivologiche, Rome, Italy; 3Università Cattolica del Sacro Cuore, Istituto di Microbiologia, Rome, Italy; 4Fondazione Policlinico Universitario A. Gemelli IRCCS, Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, Rome, Italy; 5Università Cattolica del Sacro Cuore Rome, Istituto di Patologia e Semeiotica Medica, Rome, Italy; 6Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Malattie Infettive, Rome, Italy; 7Istituto di Malattie Infettive, Università Cattolica del Sacro Cuore, Rome, Italy*These authors contributed equally to this workObjectives: To describe a rapid workflow based on the direct detection of Escherichia coli (Ec) and Klebsiella pneumoniae (Kp) producing CTX-M extended-spectrum β-lactamase (ESBL) and/or carbapenemases (eg, KPC, VIM) from blood cultures (BCs) and the infectious disease (ID) consulting for timely appropriate antimicrobial therapy.Methods: This observational, retrospective study included adult patients with a first episode of Ec or Kp bloodstream infection (BSI) in a large Italian university hospital, where an inpatient ID consultation team (IDCT) has been operational. Results from the BCs tested for detecting blaCTX-M, blaKPC, blaNDM, blaOXA-48-like, and blaVIM genes by the eazyplex®, SuperBug CRE assay in Ec and Kp organisms had been notified for antimicrobial therapy consulting.Results: In 321 BSI episodes studied, we found that 151 (47.0%) of Ec or Kp organisms harbored blaCTX-M and/or blaKPC and/or blaVIM (meantime from BC collection: 18.5 h). Empirical antimicrobial treatment was appropriate in 21.8% (33/151) of BSIs, namely 5.9% (3/51) of BSIs caused by KPC/VIM producers and 30.0% (30/100) of BSIs caused by CTX-M producers. After notification of results, the IDCT modified antimicrobial therapy (mean time from BC collection: 20 h) such that the proportion of appropriate treatments increased to 84.8% (128/151) of BSIs, namely 70.6% (36/51) of BSIs caused by KPC/VIM producers and 92.0% (92/100) of BSIs caused by CTX-M producers.Conclusion: Our study shows that a rapid diagnostic-driven clinical strategy allowed for early prescription of potentially effective antimicrobial therapy in BSIs caused by CTX-M ESBL- and/or KPC/VIM carbapenemase-producing Ec and Kp organisms.Keywords: Escherichia coli, Klebsiella pneumoniae, bloodstream infection, drug resistance, targeted therapy, infectious disease consultation

Published
2019

2. Performance evaluation of the (1,3)-β-D-glucan detection assay in non-intensive care unit adult patients

Author

Murri R, Camici M, Posteraro B, Giovannenze F, Taccari F, Ventura G, Scoppettuolo G, Sanguinetti M, Cauda R, and Fantoni M

Subjects
beta-glucan, candidemia, Candida, bloodstream infections, antimicrobial stewardship, diagnostic biomarkers, Infectious and parasitic diseases, RC109-216
Abstract

Rita Murri,1 Marta Camici,1 Brunella Posteraro,2 Francesca Giovannenze,1 Francesco Taccari,1 Giulio Ventura,1 Giancarlo Scoppettuolo,1 Maurizio Sanguinetti,3 Roberto Cauda,1 Massimo Fantoni1 1Institute of Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy; 2Institute of Medical Pathology and Semeiotics, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy; 3Institute of Microbiology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy Objectives: To assess the performance of the (1,3)-β-D-glucan (BDG) detection assay in a large cohort of patients with suspected candidemia who were admitted to non-intensive care unit hospital wards. Methods: This observational, retrospective cohort study was conducted in a 1,100-bed university hospital in Rome, where an infectious disease consultation team has been operational. Two groups of patients were included in the analysis: Group 1, patients with Candida bloodstream infection (BSI) who had at least one BDG test performed ±48 hours from the first positive blood culture (Candida BSI Group) and Group 2, patients with risk factors for candidemia who had at least one BDG test but had negative blood cultures (Control Group). Both Group 1 and Group 2 did not receive prior antifungal therapy. Different BDG cutoff values were considered: 80, 200, 300, 400, and ≥500 pg/mL. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and area under the receiver operating characteristic curve were calculated. Results: A total of 1,296 patients were studied. Of them, 100 patients (candidemic) were in Group 1 and the remaining 1,196 patients (controls) were in Group 2. There were no differences in demographic characteristics between patients of the two groups. According to the above cutoff values, sensitivity (%) and specificity (%) of the BDG assay ranged from 91 to 60.7 and 87.7 to 97.8, respectively, whereas the PPV (%) and NPV (%) ranged from 38.2 to 68.3 and 99.1 to 97.0, respectively. Conclusion: Serum BDG has a very high NPV in a population with~10% prevalence of candidemia. This NPV may support decisions to discontinue antifungal therapy in those patients who were empirically treated because of the suspect of candidemia. Keywords: β-glucan, candidemia, Candida, bloodstream infections, antimicrobial stewardship, diagnostic biomarkers

Published
2018

3. High Sensitivity real-time VOCs monitoring in air through FTIR Spectroscopy using a Multipass Gas Cell Setup

Author

D'Arco, A., Mancini, T., Paolozzi, M. C., Macis, S., Marcelli, A., Petrarca, M., Radica, F., Tranfo, G., Lupi, S., and della Ventura, G.

Subjects
Physics - Chemical Physics
Abstract

Human exposure to Volatile Organic Compounds (VOCs) and their presence in indoor and working environments is recognized as a serious health risk, causing impairment of varying severity. Different detecting systems able to monitor VOCs are available in the market, however they have significant limitations for both sensitivity and chemical discrimination capability. During the last years we studied systematically the use of Fourier Transform Infrared Spectroscopy (FTIR) spectroscopy as an alternative, powerful tool for quantifying VOCs in air. We calibrated the method for a set of compounds (styrene, acetone, ethanol and isopropanol) by using both laboratory and portable infrared spectrometers. The aim was to develop a new, real time and highly sensitive sensor system for VOCs monitoring. In this paper, we improve the setup performance testing the feasibility of using a multipass cell with the aim of extending the sensitivity of this sensor system down to the part per milion (ppb) level. Considering that multipass cells are now available also for portable instruments, this study opens the road for the design of new high-resolution devices for environmental monitoring., Comment: 17 pages, 9 figures

Published
2022

4. CUORE Opens the Door to Tonne-scale Cryogenics Experiments

Author

CUORE Collaboration, Adams, D. Q., Alduino, C., Alessandria, F., Alfonso, K., Andreotti, E., Avignone III, F. T., Azzolini, O., Balata, M., Bandac, I., Banks, T. I., Bari, G., Barucci, M., Beeman, J. W., Bellini, F., Benato, G., Beretta, M., Bersani, A., Biare, D., Biassoni, M., Bragazzi, F., Branca, A., Brofferio, C., Bryant, A., Buccheri, A., Bucci, C., Bulfon, C., Camacho, A., Camilleri, J., Caminata, A., Campani, A., Canonica, L., Cao, X. G., Capelli, S., Capodiferro, M., Cappelli, L., Cardani, L., Cariello, M., Carniti, P., Carrettoni, M., Casali, N., Cassina, L., Celi, E., Cereseto, R., Ceruti, G., Chiarini, A., Chiesa, D., Chott, N., Clemenza, M., Conventi, D., Copello, S., Cosmelli, C., Cremonesi, O., Crescentini, C., Creswick, R. J., Cushman, J. S., D'Addabbo, A., D'Aguanno, D., Dafinei, I., Datskov, V., Davis, C. J., Del Corso, F., Dell'Oro, S., Deninno, M. M., Di Domizio, S., Dompè, V., Di Vacri, M. L., Di Paolo, L., Drobizhev, A., Ejzak, L., Faccini, R., Fang, D. Q., Fantini, G., Faverzani, M., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fu, S. H., Fujikawa, B. K., Gaigher, R., Ghislandi, S., Giachero, A., Gironi, L., Giuliani, A., Gladstone, L., Goett, J., Gorla, P., Gotti, C., Guandalini, C., Guerzoni, M., Guetti, M., Gutierrez, T. D., Haller, E. E., Han, K., Hansen, E. V., Heeger, K. M., Hennings-Yeomans, R., Hickerson, K. P., Huang, R. G., Huang, H. Z., Iannone, M., Ioannucci, L., Johnston, J., Kadel, R., Keppel, G., Kogler, L., Kolomensky, Yu. G., Leder, A., Ligi, C., Lim, K. E., Liu, R., Ma, L., Ma, Y. G., Maiano, C., Maino, M., Marini, L., Martinez, M., Amaya, C. Martinez, Maruyama, R. H., Mayer, D., Mazza, R., Mei, Y., Moggi, N., Morganti, S., Mosteiro, P. J., Nagorny, S. S., Napolitano, T., Nastasi, M., Nikkel, J., Nisi, S., Nones, C., Norman, E. B., Novati, V., Nucciotti, A., Nutini, I., O'Donnell, T., Olcese, M., Olivieri, E., Orio, F., Orlandi, D., Ouellet, J. L., Pagan, S., Pagliarone, C. E., Pagnanini, L., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pedrotta, R., Pelosi, A., Perego, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Puiu, A., Quitadamo, S., Reindl, F., Rimondi, F., Risegari, L., Rosenfeld, C., Rossi, C., Rusconi, C., Sakai, M., Sala, E., Salvioni, C., Sangiorgio, S., Santone, D., Schaeffer, D., Schmidt, B., Schmidt, J., Scielzo, N. D., Sharma, V., Singh, V., Sisti, M., Smith, A. R., Speller, D., Stivanello, F., Surukuchi, P. T., Taffarello, L., Tatananni, L., Tenconi, M., Terranova, F., Tessaro, M., Tomei, C., Ventura, G., Vetter, K. J., Vignati, M., Wagaarachchi, S. L., Wallig, J., Wang, B. S., Wang, H. W., Welliver, B., Wilson, J., Wilson, K., Winslow, L. A., Wise, T., Zanotti, L., Zarra, C., Zhang, G. Q., Zhu, B. X., Zimmermann, S., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

The past few decades have seen major developments in the design and operation of cryogenic particle detectors. This technology offers an extremely good energy resolution - comparable to semiconductor detectors - and a wide choice of target materials, making low temperature calorimetric detectors ideal for a variety of particle physics applications. Rare event searches have continued to require ever greater exposures, which has driven them to ever larger cryogenic detectors, with the CUORE experiment being the first to reach a tonne-scale, mK-cooled, experimental mass. CUORE, designed to search for neutrinoless double beta decay, has been operational since 2017 at a temperature of about 10 mK. This result has been attained by the use of an unprecedentedly large cryogenic infrastructure called the CUORE cryostat: conceived, designed and commissioned for this purpose. In this article the main characteristics and features of the cryogenic facility developed for the CUORE experiment are highlighted. A brief introduction of the evolution of the field and of the past cryogenic facilities are given. The motivation behind the design and development of the CUORE cryogenic facility is detailed as are the steps taken toward realization, commissioning, and operation of the CUORE cryostat. The major challenges overcome by the collaboration and the solutions implemented throughout the building of the cryogenic facility will be discussed along with the potential improvements for future facilities. The success of CUORE has opened the door to a new generation of large-scale cryogenic facilities in numerous fields of science. Broader implications of the incredible feat achieved by the CUORE collaboration on the future cryogenic facilities in various fields ranging from neutrino and dark matter experiments to quantum computing will be examined., Comment: 45 pages, 14 figures

Published
2021
Full Text
View/download PDF

7. The CUORE and CUORE-0 experiments at Gran Sasso

Author

Giachero A., Artusa D. R., Avignone F. T., Azzolini O., Balata M., Banks T. I., Bari G., Beeman J., Bellini F., Bersani A., Biassoni M., Brofferio C., Bucci C., Cai X. Z., Camacho A., Caminata A., Canonica L., Cao X. G., Capelli S., Cappelli L., Carbone L., Cardani L., Casali N., Cassina L., Chiesa D., Chott N., Clemenza M., Copello S., Cosmelli C., Cremonesi O., Creswick R.J., Cushman J.S., Dafinei I., Dally A., Datskov V., Dell’Oro S., Deninno M. M., Di Domizio S., di Vacri M. L., Drobizhev A., Ejzak L., Fang D. Q., Farach H. A., Faverzani M., Fernandes G., Ferri E., Ferroni F., Fiorini E., Franceschi M. A., Freedman S. J., Fujikawa B. K., Gironi L., Giuliani A., Gorla P., Gotti C., Gutierrez T. D., Haller E. E., Han K., Heeger K. M., Hennings-Yeomans R., Hickerson K. P., Huang H. Z., Kadel R., Kazkaz K., Keppel G., Kolomensky Yu.G., Li Y.L., Ligi C., Lim K. E., Liu X., Ma Y. G., Maiano C., Maino M., Martinez M., Maruyama R. H., Mei Y., Moggi N., Morganti S., Napolitano T., Nastasi M., Nisi S., Nones C., Norman E. B., Nucciotti A., O’Donnell T., Orio F., Orlandi D., Ouellet J. L., Pagliarone C. E., Pallavicini M., Pattavina L., Pavan M., Pedretti M., Pessina G., Pettinacci V., Piperno G., Pira C., Pirro S., Pozzi S., Previtali E., Rampazzo V., Rosenfeld C., Rusconi C., Sala E., Sangiorgio S., Scielzo N. D., Sisti M., Smith A. R., Taffarello L., Tenconi M., Terranova F., Tian W. D., Tomei C., Trentalange S., Ventura G., Vignati M., Wang B. S., Wang H. W., Wielgus L., Wilson J., Winslow L. A., Wise T., Woodcraft A., Zanotti L., Zarra C., Zhang G. Q., Zhu B. X., and Zucchelli S.

Subjects
Physics, QC1-999
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is an experiment to search for neutrinoless double beta decay (0νββ) in 130Te and other rare processes. CUORE is a cryogenic detector composed of 988 TeO2 bolometers for a total mass of about 741 kg. 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 an half life sensitivity around 1 × 1026 y at 90% C.L. As a first step towards CUORE a smaller experiment CUORE-0, constructed to test and demonstrate the performances expected for CUORE, has been assembled and is running. 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.

Published
2015
Full Text
View/download PDF

8. Neutrinoless double-beta decay search with CUORE and CUORE-0 experiments

Author

Moggi N., Artusa D. R., Avignone F. T., Azzolini O., Balata M., Banks T. I., Bari G., Beeman J., Bellini F., Bersani A., Biassoni M., Brofferio C., Bucci C., Cai X. Z., Camacho A., Caminata A., Canonica L., Cao X. G., Capelli S., Cappelli L., Carbone L., Cardani L., Casali N., Cassina L., Chiesa D., Chott N., Clemenza M., Copello S., Cosmelli C., Cremonesi O., Creswick R. J., Cushman J. S., Dafinei I., Dally A., Datskov V., Dell’oro S., Deninno M. M., Di Domizio S., Di Vacri M. L., Drobizhev A., Ejzak L., Fang D. Q., Farach H. A., Faverzani M., Fernandes G., Ferri E., Ferroni F., Fiorini E., Franceschi M. A., Freedman S. J., Fujikawa B. K., Giachero A., Gironi L., Giuliani A., Gorla P., Gotti C., Gutierrez T. D., Haller E. E., Han K., Heeger K. M., Hennings-Yeomans R., Hickerson K. P., Huang H. Z., Kadel R., Keppel G., Kolomensky Yu. G., Li Y. L., Ligi C., Lim K. E., Liu X., Ma Y. G., Maiano C., Maino M., Martinez M., Maruyama R. H., Mei Y., Morganti S., Napolitano T., Nisi S., Nones C., Norman E. B., Nucciotti A., O’Donnell T., Orio F., Orlandi D., Ouellet J. L., Pagliarone C. E., Pallavicini M., Palmieri V., Pattavina L., Pavan M., Pessina G., Pettinacci V., Piperno G., Pira C., Pirro S., Pozzi S., Previtali E., Rosenfeld C., Rusconi C., Sala E., Sangiorgio S., Santone D., Scielzo N. D., Sisti M., Smith A. R., Taffarello L., Tenconi M., Terranova F., Tian W. D., Tomei C., Trentalange S., Ventura G., Vignati M., Wang B. S., Wang H. W., Wielgus L., Wilson J., Winslow L. A., Wise T., Woodcraft A., Zanotti L., Zarra C., Zhang G. Q., Zhu B. X., and Zucchelli S.

Subjects
Physics, QC1-999
Abstract

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.

Published
2015
Full Text
View/download PDF

9. Nonlinear optical conductivity of a two-band crystal I

Author

Passos, D. J., Ventura, G. B., Santos, J. M. B. Lopes dos, and Lopes, J. M. Viana Parente

Subjects
Condensed Matter - Other Condensed Matter, Physics - Optics
Abstract

The structure of the electronic nonlinear optical conductivity is elucidated in a detailed study of the time-reversal symmetric two-band model. The nonlinear conductivity is decomposed as a sum of contributions related with different regions of the First Brillouin Zone, defined by single or multiphoton resonances. All contributions are written in terms of the same integrals, which contain all information specific to the particular model under study. In this way, ready-to-use formulas are provided that reduce the often tedious calculations of the second and third order optical conductivity to the evaluation of a small set of similar integrals. In the scenario where charge carriers are present prior to optical excitation, Fermi surface contributions must also be considered and are shown to have an universal frequency dependence, tunable by doping. General characteristics are made evident in this type of resonance-based analysis: the existence of step functions that determine the chemical potential dependence of electron-hole symmetric insulators; the determination of the imaginary part by Hilbert transforms, simpler than those of the nonlinear Kramers-Kr\"{o}nig relations; the absence of Drude peaks in the diagonal elements of the second order conductivity, among others. As examples, analytical expressions are derived for the nonlinear conductivities of some simple systems: a very basic model of direct gap semiconductors and the Dirac fermions of monolayer graphene.

Published
2021
Full Text
View/download PDF

11. Second order divergence in the third order DC response of a cold semiconductor

Author

Ventura, G. B., Passos, D. J., Lopes, J. M. Viana Parente, and Santos, J. M. B. Lopes dos

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

In this work, we present the analytical expression for the second order divergence in the third order DC response of a cold semiconductor, which can be probed by different electric field setups. Results from this expression were then compared, for the response of the gapped graphene monolayer, with numerical results from a velocity gauge calculation of the third order conductivity. The good agreement between the two validates our analytical expression., Comment: 8 pages, 4 figures

Published
2020

15. Absorption of single-layer hexagonal boron nitride in the ultraviolet

Author

Henriques, J. C. G., Ventura, G. B., Fernandes, C. D. M., and Peres, N. M. R.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

In this paper we theoretically describe the absorption of hexagonal boron nitride (hBN) single layer. We develop the necessary formalism and present an efficient method for solving the Wannier equation for excitons. We give predictions for the absorption of hBN on quartz and on graphite. We compare our predictions with recently published results [Elias {\it et al.}, Nat. Comm. {\bf 10}, 2639 (2019)] for a monolayer of hBN on graphite. The spontaneous radiative lifetime of excitons in hBN is also computed. We argue that the optical properties of hBN in the ultraviolet are very useful for the study of peptides and other biomolecules., Comment: 14 pages

Published
2019
Full Text
View/download PDF

16. A study of the nonlinear optical response of the plain graphene and gapped graphene monolayers beyond the Dirac approximation

Author

Ventura, G. B., Passos, D. J., Lopes, J. M. Viana Parente, and Santos, J. M. B. Lopes dos

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

In this work, we present numerical results for the second and third order conductivities of the plain graphene and gapped graphene monolayers associated with the second and third harmonic generation, the optical rectification and the optical Kerr effect. The frequencies considered here range from the microwave to the ultraviolet portion of the spectrum, the latter end of which had not yet been studied. These calculations are performed in the velocity gauge and directly address the components of the conductivity tensor. In the velocity gauge, the radiation field is represented by a power series in the vector potential, and we discuss a very efficient way of calculating its coefficients in the context of tight-binding models., Comment: 13 pages, 19 figures

Published
2019
Full Text
View/download PDF

21. Geodynamics, geophysical and geochemical observations, and the role of CO2 degassing in the Apennines

Author

Di Luccio, F., Palano, M., Chiodini, G., Cucci, L., Piromallo, C., Sparacino, F., Ventura, G., Improta, L., Cardellini, C., Persaud, P., Pizzino, L., Calderoni, G., Castellano, C., Cianchini, G., Cianetti, S., Cinti, D., Cusano, P., De Gori, P., De Santis, A., Del Gaudio, P., Diaferia, G., Esposito, A., Galluzzo, D., Galvani, A., Gasparini, A., Gaudiosi, G., Gervasi, A., Giunchi, C., La Rocca, M., Milano, G., Morabito, S., Nardone, L., Orlando, M., Petrosino, S., Piccinini, D., Pietrantonio, G., Piscini, A., Roselli, P., Sabbagh, D., Sciarra, A., Scognamiglio, L., Sepe, V., Tertulliani, A., Tondi, R., Valoroso, L., Voltattorni, N., and Zuccarello, L.

Published
2022
Full Text
View/download PDF

22. Nonlinear optical responses of crystalline systems: Results from a velocity gauge analysis

Author

Passos, D. J., Ventura, G. B., Lopes, J. M. Viana Parente, Santos, J. M. B. Lopes dos, and Peres, N. M. R.

Subjects
Condensed Matter - Other Condensed Matter
Abstract

In this work, the difficulties inherent to perturbative calculations in the velocity gauge are addressed. In particular, it is shown how calculations of nonlinear optical responses in the independent particle approximation can be done to any order and for any finite band model. The procedure and advantages of the velocity gauge in such calculations are described. The addition of a phenomenological relaxation parameter is also discussed. As an illustration, the nonlinear optical response of monolayer graphene is numerically calculated using the velocity gauge.

Published
2017
Full Text
View/download PDF

23. First Results from CUORE: A Search for Lepton Number Violation via $0\nu\beta\beta$ Decay of $^{130}$Te

Author

CUORE Collaboration, Alduino, C., Alfonso, K., Andreotti, E., Arnaboldi, C., Avignone III, F. T., Azzolini, O., Bandac, I., Banks, T. I., Bari, G., Barucci, M., Beeman, J. W., Bellini, F., Benato, G., Bersani, A., Biare, D., Biassoni, M., Branca, A., Brofferio, C., Bryant, A., Buccheri, A., Bucci, C., Bulfon, C., Camacho, A., Caminata, A., Canonica, L., Cao, X. G., Capelli, S., Capodiferro, M., Cappelli, L., Cardani, L., Carniti, P., Carrettoni, M., Casali, N., Cassina, L., Ceruti, G., Chiarini, A., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Crescentini, C., Creswick, R. J., Cushman, J. S., D'Addabbo, A., D'Aguanno, D., Dafinei, I., Davis, C. J., Del Corso, F., Dell'Oro, S., Deninno, M. M., Di Domizio, S., Di Vacri, M. L., Di Paolo, L., Drobizhev, A., Ejzak, L., Faccini, R., Fang, D. Q., Faverzani, M., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Gladstone, L., Goett, J., Gorla, P., Gotti, C., Guandalini, C., Guerzoni, M., Gutierrez, T. D., Haller, E. E., Han, K., Hansen, E. V., Heeger, K. M., Hennings-Yeomans, R., Hickerson, K. P., Huang, H. Z., Iannone, M., Kadel, R., Keppel, G., Kogler, L., Kolomensky, Yu. G., Leder, A., Ligi, C., Lim, K. E., Ma, Y. G., Maiano, C., Marini, L., Martinez, M., Amaya, C. Martinez, Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Mosteiro, P. J., Nagorny, S. S., Napolitano, T., Nastasi, M., Nones, C., Norman, E. B., Novati, V., Nucciotti, A., Nutini, I., O'Donnell, T., Olivieri, E., Orio, F., Ouellet, J. L., Pagliarone, C. E., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pelosi, A., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Reindl, F., Rimondi, F., Risegari, L., Rosenfeld, C., Rusconi, C., Sakai, M., Sala, E., Salvioni, C., Sangiorgio, S., Santone, D., Schaeffer, D., Schmidt, B., Schmidt, J., Scielzo, N. D., Singh, V., Sisti, M., Smith, A. R., Stivanello, F., Taffarello, L., Tenconi, M., Terranova, F., Tomei, C., Ventura, G., Vignati, M., Wagaarachchi, S. L., Wang, B. S., Wang, H. W., Welliver, B., Wilson, J., Wilson, K., Winslow, L. A., Wise, T., Zanotti, L., Zhang, G. Q., Zhu, B. X., Zimmermann, S., and Zucchelli, S.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

The CUORE experiment, a ton-scale cryogenic bolometer array, recently began operation at the Laboratori Nazionali del Gran Sasso in Italy. The array represents a significant advancement in this technology, and in this work we apply it for the first time to a high-sensitivity search for a lepton-number--violating process: $^{130}$Te neutrinoless double-beta decay. Examining a total TeO$_2$ exposure of 86.3 kg$\cdot$yr, characterized by an effective energy resolution of (7.7 $\pm$ 0.5) keV FWHM and a background in the region of interest of (0.014 $\pm$ 0.002) counts/(keV$\cdot$kg$\cdot$yr), we find no evidence for neutrinoless double-beta decay. The median statistical sensitivity of this search is $7.0\times10^{24}$ yr. Including systematic uncertainties, we place a lower limit on the decay half-life of $T^{0\nu}_{1/2}$($^{130}$Te) > $1.3\times 10^{25}$ yr (90% C.L.). Combining this result with those of two earlier experiments, Cuoricino and CUORE-0, we find $T^{0\nu}_{1/2}$($^{130}$Te) > $1.5\times 10^{25}$ yr (90% C.L.), which is the most stringent limit to date on this decay. Interpreting this result as a limit on the effective Majorana neutrino mass, we find $m_{\beta\beta}<(110 - 520)$ meV, where the range reflects the nuclear matrix element estimates employed., Comment: Published in PRL, reference and DOI added

Published
2017
Full Text
View/download PDF

24. Gauge covariances and nonlinear optical responses

Author

Ventura, G. B., Passos, D. J., Santos, J. M. B. Lopes dos, Lopes, J. M. Viana Parente, and Peres, N. M . R.

Subjects
Condensed Matter - Other Condensed Matter
Abstract

The formalism of the reduced density matrix is pursued in both length and velocity gauges of the perturbation to the crystal Hamiltonian. The covariant derivative is introduced as a convenient representation of the position operator. This allow us to write compact expressions for the reduced density matrix in any order of the perturbation which simplifies the calculations of nonlinear optical responses; as an example, we compute the first and third order contributions of the monolayer graphene. Expressions obtained in both gauges share the same formal structure, allowing a comparison of the effects of truncation to a finite set of bands. This truncation breaks the equivalence between the two approaches: its proper implementation can be done directly in the expressions derived in the length gauge, but require a revision of the equations of motion of the reduced density matrix in the velocity gauge., Comment: 13 pages, 1 figure

Published
2017
Full Text
View/download PDF

26. CUORE opens the door to tonne-scale cryogenics experiments

Author

Adams, D.Q., Alduino, C., Alessandria, F., Alfonso, K., Andreotti, E., Avignone, F.T., III, Azzolini, O., Balata, M., Bandac, I., Banks, T.I., Bari, G., Barucci, M., Beeman, J.W., Bellini, F., Benato, G., Beretta, M., Bersani, A., Biare, D., Biassoni, M., Bragazzi, F., Branca, A., Brofferio, C., Bryant, A., Buccheri, A., Bucci, C., Bulfon, C., Camacho, A., Camilleri, J., Caminata, A., Campani, A., Canonica, L., Cao, X.G., Capelli, S., Capodiferro, M., Cappelli, L., Cardani, L., Cariello, M., Carniti, P., Carrettoni, M., Casali, N., Cassina, L., Celi, E., Cereseto, R., Ceruti, G., Chiarini, A., Chiesa, D., Chott, N., Clemenza, M., Conventi, D., Copello, S., Cosmelli, C., Cremonesi, O., Crescentini, C., Creswick, R.J., Cushman, J.S., D’Addabbo, A., D’Aguanno, D., Dafinei, I., Datskov, V., Davis, C.J., Corso, F. Del, Dell’Oro, S., Deninno, M.M., Di Domizio, S., Dompè, V., Di Vacri, M.L., Di Paolo, L., Drobizhev, A., Ejzak, L., Faccini, R., Fang, D.Q., Fantini, G., Faverzani, M., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M.A., Freedman, S.J., Fu, S.H., Fujikawa, B.K., Gaigher, R., Ghislandi, S., Giachero, A., Gironi, L., Giuliani, A., Gladstone, L., Goett, J., Gorla, P., Gotti, C., Guandalini, C., Guerzoni, M., Guetti, M., Gutierrez, T.D., Haller, E.E., Han, K., Hansen, E.V., Heeger, K.M., Hennings-Yeomans, R., Hickerson, K.P., Huang, R.G., Huang, H.Z., Iannone, M., Ioannucci, L., Johnston, J., Kadel, R., Keppel, G., Kogler, L., Kolomensky, Yu.G., Leder, A., Ligi, C., Lim, K.E., Liu, R., Ma, L., Ma, Y.G., Maiano, C., Maino, M., Marini, L., Martinez, M., Amaya, C. Martinez, Maruyama, R.H., Mayer, D., Mazza, R., Mei, Y., Moggi, N., Morganti, S., Mosteiro, P.J., Nagorny, S.S., Napolitano, T., Nastasi, M., Nikkel, J., Nisi, S., Nones, C., Norman, E.B., Novati, V., Nucciotti, A., Nutini, I., O’Donnell, T., Olcese, M., Olivieri, E., Orio, F., Orlandi, D., Ouellet, J.L., Pagan, S., Pagliarone, C.E., Pagnanini, L., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pedrotta, R., Pelosi, A., Perego, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Puiu, A., Quitadamo, S., Reindl, F., Rimondi, F., Risegari, L., Rosenfeld, C., Rossi, C., Rusconi, C., Sakai, M., Sala, E., Salvioni, C., Sangiorgio, S., Santone, D., Schaeffer, D., Schmidt, B., Schmidt, J., Scielzo, N.D., Sharma, V., Singh, V., Sisti, M., Smith, A.R., Speller, D., Stivanello, F., Surukuchi, P.T., Taffarello, L., Tatananni, L., Tenconi, M., Terranova, F., Tessaro, M., Tomei, C., Ventura, G., Vetter, K.J., Vignati, M., Wagaarachchi, S.L., Wallig, J., Wang, B.S., Wang, H.W., Welliver, B., Wilson, J., Wilson, K., Winslow, L.A., Wise, T., Zanotti, L., Zarra, C., Zhang, G.Q., Zhu, B.X., Zimmermann, S., and Zucchelli, S.

Published
2022
Full Text
View/download PDF

28. CUORE-0 detector: design, construction and operation

Author

CUORE Collaboration, Alduino, C., Alfonso, K., Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J. W., Bellini, F., Bersani, A., Biare, D., Biassoni, M., Bragazzi, F., Brofferio, C., Buccheri, A., Bucci, C., Bulfon, C., Caminata, A., Canonica, L., Cao, X. G., Capelli, S., Capodiferro, M., Cappelli, L., Carbone, L., Cardani, L., Cariello, M., Carniti, P., Casali, N., Cassina, L., Cereseto, R., Ceruti, G., Chiarini, A., Chiesa, D., Chott, N., Clemenza, M., Conventi, D., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., Cushman, J. S., D'Addabbo, A., Dafinei, I., Davis, C. J., Dell'Oro, S., Deninno, M. M., Di Domizio, S., Di Vacri, M. L., DiPaolo, L., Drobizhev, A., Erme, G., Fang, D. Q., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Freedman, S. J., Fujikawa, B. K., Gaigher, R., Giachero, A., Gironi, L., Giuliani, A., Gladstone, L., Gorla, P., Gotti, C., Guetti, M., Gutierrez, T. D., Haller, E. E., Han, K., Hansen, E., Heeger, K. M., Hennings-Yeomans, R., Hickerson, K. P., Huang, H. Z., Iannone, M., Ioannucci, L., Kadel, R., Keppel, G., Kolomensky, Yu. G., Leder, A., Lim, K. E., Liu, X., Ma, Y. G., Maino, M., Marini, L., Martinez, M., Maruyama, R. H., Mazza, R., Mei, Y., Meijer, S., Michinelli, R., Miller, D., Moggi, N., Morganti, S., Mosteiro, P. J., Nastasi, M., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J. L., Pagliarone, C. E., Pallavicini, M., Palmieri, V., Pancaldi, G., Pattavina, L., Pavan, M., Pedrotta, R., Pelosi, A., Perego, M., Pessina, G., Pettinacci, V., Piperno, G., Pirro, S., Pozzi, S., Previtali, E., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Santone, D., Scielzo, N. D., Singh, V., Sisti, M., Smith, A. R., Stivanello, F., Taffarello, L., Tatananni, L., Tenconi, M., Terranova, F., Tessaro, M., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wagaarachchi, S. L., Wallig, J., Wang, B. S., Wang, H. W., Wilson, J., Winslow, L. A., Wise, T., Zanotti, L., Zarra, C., Zhang, G. Q., Zhu, B. X., Zimmermann, S., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment, J.2
Abstract

The CUORE experiment will search for neutrinoless double-beta decay of $^{130}$Te with an array of 988 TeO$_2$ bolometers arranged in 19 towers. CUORE-0, the first tower assembled according to the CUORE procedures, was built and commissioned at Laboratori Nazionali del Gran Sasso, and took data from March 2013 to March 2015. In this paper we describe the design, construction and operation of the CUORE-0 experiment, with an emphasis on the improvements made over a predecessor experiment, Cuoricino. In particular, we demonstrate with CUORE-0 data that the design goals of CUORE are within reach., Comment: 39 pages, 26 figures

Published
2016
Full Text
View/download PDF

31. Analysis Techniques for the Evaluation of the Neutrinoless Double-Beta Decay Lifetime in $^{130}$Te with CUORE-0

Author

CUORE Collaboration, Alduino, C., Alfonso, K., Artusa, D. R., Avignone III, F. T., Azzolini, O., Banks, T. I., Bari, G., Beeman, J. W., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Caminata, A., Canonica, L., Cao, X. G., Capelli, S., Cappelli, L., Carbone, L., Cardani, L., Carniti, P., Casali, N., Cassina, L., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., Cushman, J. S., Dafinei, I., Dally, A., Davis, C. J., Dell'Oro, S., Deninno, M. M., Di Domizio, S., Di Vacri, M. L., Drobizhev, A., Fang, D. Q., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Gladstone, L., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Hansen, E., Heeger, K. M., Hennings-Yeomans, R., Hickerson, K. P., Huang, H. Z., Kadel, R., Keppel, G., Kolomensky, Yu. G., Lim, K. E., Liu, X., Ma, Y. G., Maino, M., Marini, L., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Mosteiro, P. J., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Ouellet, J. L., Pagliarone, C. E., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pessina, G., Pettinacci, V., Piperno, G., Pirro, S., Pozzi, S., Previtali, E., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Santone, D., Scielzo, N. D., Singh, V., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wagaarachchi, S. L., Wang, B. S., Wang, H. W., Wilson, J., Winslow, L. A., Wise, T., Woodcraft, A., Zanotti, L., Zhang, G. Q., Zhu, B. X., Zimmermann, S., and Zucchelli, S.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

We describe in detail the methods used to obtain the lower bound on the lifetime of neutrinoless double-beta ($0\nu\beta\beta$) decay in $^{130}$Te and the associated limit on the effective Majorana mass of the neutrino using the CUORE-0 detector. CUORE-0 is a bolometric detector array located at the Laboratori Nazionali del Gran Sasso that was designed to validate the background reduction techniques developed for CUORE, a next-generation experiment scheduled to come online in 2016. CUORE-0 is also a competitive $0\nu\beta\beta$ decay search in its own right and functions as a platform to further develop the analysis tools and procedures to be used in CUORE. These include data collection, event selection and processing, as well as an evaluation of signal efficiency. In particular, we describe the amplitude evaluation, thermal gain stabilization, energy calibration methods, and the analysis event selection used to create our final $0\nu\beta\beta$ decay search spectrum. We define our high level analysis procedures, with emphasis on the new insights gained and challenges encountered. We outline in detail our fitting methods near the hypothesized $0\nu\beta\beta$ decay peak and catalog the main sources of systematic uncertainty. Finally, we derive the $0\nu\beta\beta$ decay half-life limits previously reported for CUORE-0, $T^{0\nu}_{1/2}>2.7\times10^{24}$ yr, and in combination with the Cuoricino limit, $T^{0\nu}_{1/2}>4.0\times10^{24}$ yr., Comment: 18 pages, 18 figures. (Version 3 reflects only minor changes to the text. Few additional details, no major content changes.)

Published
2016
Full Text
View/download PDF

32. Search for Neutrinoless Double-Beta Decay of $^{130}$Te with CUORE-0

Author

Alfonso, K., Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J. W., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Caminata, A., Canonica, L., Cao, X. G., Capelli, S., Cappelli, L., Carbone, L., Cardani, L., Casali, N., Cassina, L., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., Cushman, J. S., Dafinei, I., Dally, A., Dell'Oro, S., Deninno, M. M., DiDomizio, S., DiVacri, M. L., Drobizhev, A., Ejzak, L., Fang, D. Q., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Hansen, E., Heeger, K. M., Hennings-Yeomans, R., Hickerson, K. P., Huang, H. Z., Kadel, R., Keppel, G., Kolomensky, Yu. G., Lim, K. E., Liu, X., Ma, Y. G., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J. L., Pagliarone, C. E., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, V., Piperno, G., Pirro, S., Pozzi, S., Previtali, E., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Santone, D., Scielzo, N. D., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wagaarachchi, S. L., Wang, B. S., Wang, H. W., Wielgus, L., Wilson, J., Winslow, L. A., Wise, T., Zanotti, L., Zarra, C., Zhang, G. Q., Zhu, B. X., and Zucchelli, S.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

We report the results of a search for neutrinoless double-beta decay in a 9.8~kg$\cdot$yr exposure of $^{130}$Te using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are $5.1\pm 0.3{\rm~keV}$ FWHM and $0.058 \pm 0.004\,(\mathrm{stat.})\pm 0.002\,(\mathrm{syst.})$~counts/(keV$\cdot$kg$\cdot$yr), respectively. The median 90%~C.L. lower-limit sensitivity of the experiment is $2.9\times 10^{24}~{\rm yr}$ and surpasses the sensitivity of previous searches. We find no evidence for neutrinoless double-beta decay of $^{130}$Te and place a Bayesian lower bound on the decay half-life, $T^{0\nu}_{1/2}>$~$ 2.7\times 10^{24}~{\rm yr}$ at 90%~C.L. Combining CUORE-0 data with the 19.75~kg$\cdot$yr exposure of $^{130}$Te from the Cuoricino experiment we obtain $T^{0\nu}_{1/2} > 4.0\times 10^{24}~\mathrm{yr}$ 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, $m_{\beta\beta}< 270$ -- $760~\mathrm{meV}$., Comment: 6 pages, 5 figures, updated version as published in PRL

Published
2015
Full Text
View/download PDF

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

Author

CUORE Collaboration, Sisti, M., Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X. Z., Camacho, A., Caminata, A., Canonica, L., Cao, X. G., Capelli, S., Cappelli, L., Carbone, L., Cardani, L., Casali, N., Cassina, L., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., Cushman, J. S., Dafinei, I., Dally, A., Datskov, V., Dell'Oro, S., Deninno, M., Di Domizio, S., di Vacri, M. L., Drobizhev, A., Ejzak, L., Fang, D. Q., Farach, H. A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Hennings-Yeomans, R., Hickerson, K. P., Huang, H. Z., Kadel, R., Keppel, G., Kolomensky, Yu. G., Li, Y. L., Ligi, C., Lim, K. E., Liu, X., Ma, Y. G., Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Nastasi, M., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J. L., Pagliarone, C. E., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Scielzo, N. D., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B. S., Wang, H. W., Wielgus, L., Wilson, J., Winslow, L. A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhang, G. Q., Zhu, B. X., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

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 sigma half life sensitivity of 10E26 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., Comment: 7 pages, 4 figures, to be published in the proceedings of ICHEP 2014, 37th International Conference on High Energy Physics, Valencia (Spain) 2-9 July 2014

Published
2015

34. CUORE-0 results and prospects for the CUORE experiment

Author

CUORE Collaboration, Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X. Z., Camacho, A., Caminata, A., Canonica, L., Cao, X., Capelli, S., Cappelli, L., Carbone, L., Cardani, L., Casali, N., Cassina, L., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., Cushman, J. S., Dafinei, I., Dally, A., Datskov, V., Dell'Oro, S., Deninno, M., Di Domizio, S., di Vacri, M. L., Drobizhev, A., Ejzak, L., Fang, D. Q., Farach, H. A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Hennings-Yeomans, R., Hickerson, K. P., Huang, H. Z., Kadel, R., Kazkaz, K., Keppel, G., Kolomensky, Yu. G., Li, Y. L., Ligi, C., Lim, K. E., Liu, X., Ma, Y. G., Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Nastasi, M., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J. L., Pagliarone, C. E., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Rampazzo, V., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Scielzo, N. D., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B. S., Wang, H. W., Wielgus, L., Wilson, J., Winslow, L. A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhang, G. Q., Zhu, B. X., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

With 741 kg of TeO2 crystals and an excellent energy resolution of 5 keV (0.2%) at the region of interest, the CUORE (Cryogenic Underground Observatory for Rare Events) experiment aims at searching for neutrinoless double beta decay of 130Te with unprecedented sensitivity. Expected to start data taking in 2015, CUORE is currently in an advanced construction phase at LNGS. CUORE projected neutrinoless double beta decay half-life sensitivity is 1.6E26 y at 1 sigma (9.5E25 y at the 90% confidence level), in five years of live time, corresponding to an upper limit on the effective Majorana mass in the range 40-100 meV (50-130 meV). Further background rejection with auxiliary bolometric detectors could improve CUORE sensitivity and competitiveness of bolometric detectors towards a full analysis of the inverted neutrino mass hierarchy. CUORE-0 was built to test and demonstrate the performance of the upcoming CUORE experiment. It consists of a single CUORE tower (52 TeO2 bolometers of 750 g each, arranged in a 13 floor structure) constructed strictly following CUORE recipes both for materials and assembly procedures. An experiment its own, CUORE-0 is expected to reach a sensitivity to the neutrinoless double beta decay half-life of 130Te around 3E24 y in one year of live time. We present an update of the data, corresponding to an exposure of 18.1 kg y. An analysis of the background indicates that the CUORE performance goal is satisfied while the sensitivity goal is within reach., Comment: 10 pages, 3 figures, to appear in the proceedings of NEUTRINO 2014, 26th International Conference on Neutrino Physics and Astrophysics, 2-7 June 2014, held at Boston, Massachusetts, USA

Published
2015

38. The CUORE and CUORE-0 Experiments at Gran Sasso

Author

Giachero, A., Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X. Z., Camacho, A., Caminata, A., Canonica, L., Cao, X. G., Capelli, S., Cappelli, L., Carbone, L., Cardani, L., Casali, N., Cassina, L., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., Cushman, J. S., Dafinei, I., Dally, A., Datskov, V., Dell'Oro, S., Deninno, M. M., Di Domizio, S., di Vacri, M. L., Drobizhev, A., Ejzak, L., Fang, D. Q., Farach, H. A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Gironi, L., Giuliani, A., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Hennings-Yeomans, R., Hickerson, K. P., Huang, H. Z., Kadel, R., Kazkaz, K., Keppel, G., Kolomensky, Yu. G., Li, Y. L., Ligi, C., Lim, K. E., Liu, X., Ma, Y. G., Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Nastasi, M., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J. L., Pagliarone, C. E., Pallavicini, M., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Pozzi, S., Previtali, E., Rampazzo, V., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Scielzo, N. D., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B. S., Wang, H. W., Wielgus, L., Wilson, J., Winslow, L. A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhang, G. Q., Zhu, B. X., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors
Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is an experiment to search for neutrinoless double beta decay ($0\nu\beta\beta$) in $^{130}$Te and other rare processes. CUORE is a cryogenic detector composed of 988 TeO$_2$ bolometers for a total mass of about 741 kg. 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$\cdot$kg$\cdot$y) will be reached, in five years of data taking CUORE will have an half life sensitivity around $1\times 10^{26}$ y at 90\% C.L. As a first step towards CUORE a smaller experiment CUORE-0, constructed to test and demonstrate the performances expected for CUORE, has been assembled and is running. 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., Comment: Proceedings of a talk given at the International Conference of New Frontiers in Physics, ICNFP 2014; submitted at EPJ Web of Conferences

Published
2014
Full Text
View/download PDF

39. CUORE and beyond: bolometric techniques to explore inverted neutrino mass hierarchy

Author

Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X. Z., Camacho, A., Canonica, L., Cao, X. G., Capelli, S., Carbone, L., Cardani, L., Carrettoni, M., Casali, N., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., Dafinei, I., Dally, A., Datskov, V., De Biasi, A., Deninno, M. M., Di Domizio, S., di Vacri, M. L., Ejzak, L., Fang, D. Q., Farach, H. A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Goett, J., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Hennings-Yeomans, R., Huang, H. Z., Kadel, R., Kazkaz, K., Keppel, G., Kolomensky, Yu. G., Li, Y. L., Ligi, C., Liu, X., Ma, Y. G., Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J. L., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Previtali, E., Rampazzo, V., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Scielzo, N. D., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B. S., Wang, H. W., Wielgus, L., Wilson, J., Winslow, L. A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhu, B. X., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of $^{130}$Te. With 741 kg of TeO$_2$ 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 $1.6\times 10^{26}$ y at $1\sigma$ ($9.5\times10^{25}$ 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 $^{130}$Te and possibly other double beta decay candidate nuclei., Comment: Submitted to the Proceedings of TAUP 2013 Conference

Published
2014

40. Exploring the Neutrinoless Double Beta Decay in the Inverted Neutrino Hierarchy with Bolometric Detectors

Author

Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X. Z., Camacho, A., Canonica, L., Cao, X. G., Capelli, S., Carbone, L., Cardani, L., Carrettoni, M., Casali, N., Chiesa, D., Chott, N., Clemenza, M., Cosmelli, C., Cremonesi, O., Creswick, R. J., Dafinei, I., Dally, A., Datskov, V., De Biasi, A., Deninno, M. M., Di Domizio, S., di Vacri, M. L., Ejzak, L., Fang, D. Q., Farach, H. A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Goett, J., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Hennings-Yeomans, R., Huang, H. Z., Kadel, R., Kazkaz, K., Keppel, G., Kolomensky, Yu. G., Li, Y. L., Ligi, C., Liu, X., Ma, Y. G., Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J. L., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Previtali, E., Rampazzo, V., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Scielzo, N. D., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B. S., Wang, H. W., Wielgus, L., Wilson, J., Winslow, L. A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhu, B. X., and Zucchelli, S.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, Physics - Instrumentation and Detectors, J.2
Abstract

Neutrinoless double beta decay (0nubb) is one of the most sensitive probes for physics beyond the Standard Model, providing unique information on the nature of neutrinos. In this paper we review the status and outlook for bolometric 0nubb decay searches. We summarize recent advances in background suppression demonstrated using bolometers with simultaneous readout of heat and light signals. We simulate several configurations of a future CUORE-like bolometer array which would utilize these improvements and present the sensitivity reach of a hypothetical next-generation bolometric 0nubb experiment. We demonstrate that a bolometric experiment with the isotope mass of about 1 ton is capable of reaching the sensitivity to the effective Majorana neutrino mass (|mee|) of order 10-20 meV, thus completely exploring the so-called inverted neutrino mass hierarchy region. We highlight the main challenges and identify priorities for an R&D program addressing them., Comment: 22 pages, 15 figures, submitted to EPJC

Published
2014

41. Searching for neutrinoless double-beta decay of $^{130}$Te with CUORE

Author

CUORE Collaboration, Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X. Z., Camacho, A., Canonica, L., Cao, X. G., Capelli, S., Carbone, L., Cardani, L., Carrettoni, M., Casali, N., Chiesa, D., Chott, N., Clemenza, M., Copello, S., Cosmelli, C., Cremonesi, O., Creswick, R. J., Dafinei, I., Dally, A., Datskov, V., De Biasi, A., Deninno, M. M., Di Domizio, S., di Vacri, M. L., Ejzak, L., Fang, D. Q., Farach, H. A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Goett, J., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Hennings-Yeomans, R., Huang, H. Z., Kadel, R., Kazkaz, K., Keppel, G., Kolomensky, Yu. G., Li, Y. L., Ligi, C., Liu, X., Ma, Y. G., Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J. L., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, V., Piperno, G., Pira, C., Pirro, S., Previtali, E., Rampazzo, V., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Scielzo, N. D., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B. S., Wang, H. W., Wielgus, L., Wilson, J., Winslow, L. A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhu, B. X., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

Neutrinoless double-beta ($0\nu\beta\beta$) decay is a hypothesized lepton-number-violating process that offers the only known means of asserting the possible Majorana nature of neutrino mass. The Cryogenic Underground Observatory for Rare Events (CUORE) is an upcoming experiment designed to search for $0\nu\beta\beta$ decay of $^{130}$Te using an array of 988 TeO$_2$ crystal bolometers operated at 10 mK. The detector will contain 206 kg of $^{130}$Te and have an average energy resolution of 5 keV; the projected $0\nu\beta\beta$ decay half-life sensitivity after five years of live time is $1.6\times 10^{26}$ y at $1\sigma$ ($9.5\times10^{25}$ 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). In this paper we review the experimental techniques used in CUORE as well as its current status and anticipated physics reach., Comment: 20 pages, 8 figures. Published in Advances in High Energy Physics, Volume 2015 (2015), Article ID 879871

Published
2014
Full Text
View/download PDF

42. Initial performance of the CUORE-0 experiment

Author

CUORE Collaboration, Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X. Z., Canonica, L., Cao, X. G., Capelli, S., Carbone, L., Cardani, L., Carrettoni, M., Casali, N., Chiesa, D., Chott, N., Clemenza, M., Cosmelli, C., Cremonesi, O., Creswick, R. J., Dafinei, I., Dally, A., Datskov, V., Deninno, M. M., Di Domizio, S., di Vacri, M. L., Ejzak, L., Fang, D. Q., Farach, H. A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, F., Fiorini, E., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Goett, J., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Hennings-Yeomans, R., Huang, H. Z., Kadel, R., Kazkaz, K., Keppel, G., Kolomensky, Yu. G., Li, Y. L., Lim, K. E., Liu, X., Ma, Y. G., Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, F., Orlandi, D., Ouellet, J. L., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, V., Piperno, G., Pirro, S., Previtali, E., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Scielzo, N. D., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B. S., Wang, H. W., Wielgus, L., Wilson, J., Winslow, L. A., Wise, T., Zanotti, L., Zarra, C., Zhu, B. X., and Zucchelli, S.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

CUORE-0 is a cryogenic detector that uses an array of tellurium dioxide bolometers to search for neutrinoless double-beta decay of ^{130}Te. We present the first data analysis with 7.1 kg y of total TeO_2 exposure focusing on background measurements and energy resolution. The background rates in the neutrinoless double-beta decay region of interest (2.47 to 2.57 MeV) and in the {\alpha} background-dominated region (2.70 to 3.90 MeV) have been measured to be 0.071 \pm 0.011 and 0.019 \pm 0.002 counts/keV/kg/y, respectively. The latter result represents a factor of 6 improvement from a predecessor experiment, Cuoricino. The results verify our understanding of the background sources in CUORE-0, which is the basis of extrapolations to the full CUORE detector. The obtained energy resolution (full width at half maximum) in the region of interest is 5.7 keV. Based on the measured background rate and energy resolution in the region of interest, CUORE-0 half-life sensitivity is expected to surpass the observed lower bound of Cuoricino with one year of live time., Comment: 8 pages, 5 figures, version 2 as published in Eur. Phys. J. C

Published
2014
Full Text
View/download PDF

44. SR-FTiR microscopy and FTIR imaging in the earth sciences

Author

Della Ventura, G., Marcelli, A., and Bellatreccia, F.

Subjects
Condensed Matter - Materials Science
Abstract

During the last decades, several books have been devoted to the application of spectroscopic methods in mineralogy. Several short courses and meetings have addressed particular aspects of spectroscopy, such as the analysis of hydrous components in minerals and Earth materials. In these books, complete treatment of the infrared theory and practical aspects of instrumentation and methods, along with an exhaustive list of references, can be found. The present chapter is intended to cover those aspects of infrared spectroscopy that have been developed in the past decade and are not included in earlier reviews such as Volume 18 of Reviews in Mineralogy. These new topics involve primarily: (1) the use of synchrotron radiation (SR), which, although not a routine method, is now rather extensively applied in infrared studies, in particular those requiring ultimate spatial and time resolution and the analysis of extremely small samples (a few tens of micrometers); (2) the development of imaging techniques also for foreseen time resolved studies of geo-mineralogical processes and environmental studies., Comment: 36 pages, 24 figures - Reviews in Mineralogy & Geochemistry - Vol. 78 (2013) in press

Published
2013

49. Validation of techniques to mitigate copper surface contamination in CUORE

Author

Alessandria, F., Ardito, R., Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Bloxham, T., Brofferio, C., Bucci, C., Cai, X. Z., Canonica, L., Capelli, S., Carbone, L., Cardani, L., Carrettoni, M., Casali, N., Chott, N., Clemenza, M., Cosmelli, C., Cremonesi, O., Creswick, R. J., Dafinei, I., Dally, A., Datskov, V., De Biasi, A., Deninno, M. M., Di Domizio, S., di Vacri, M. L., Ejzak, L., Faccini, R., Fang, D. Q., Farach, H. A., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Goett, J., Goodsell, A., Gorla, P., Gotti, C., Guardincerri, E., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Huang, H. Z., Kadel, R., Kazkaz, K., Keppel, G., Kogler, L., Kolomensky, Yu. G., Lenz, D., Li, Y. L., Ligi, C., Liu, X., Ma, Y. G., Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Napolitano, T., Newman, S., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., Orio, F., Orlandi, D., Ouellet, J. L., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pirro, S., Previtali, E., Rampazzo, V., Reil, R., Rimondi, F., Rosenfeld, C., Rusconi, C., Sangiorgio, S., Scielzo, N. D., Sisti, M., Smith, A. R., Sparks, L., Stivanello, F., Taffarello, L., Tenconi, M., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B. S., Wang, H. W., Whitten Jr, C. A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhu, B. X., and Zucchelli, S.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

In this article we describe the background challenges for the CUORE experiment posed by surface contamination of inert detector materials such as copper, and present three techniques explored to mitigate these backgrounds. Using data from a dedicated test apparatus constructed to validate and compare these techniques we demonstrate that copper surface contamination levels better than 10E-07 - 10E-08 Bq/cm2 are achieved for 238U and 232Th. If these levels are reproduced in the final CUORE apparatus the projected 90% C.L. upper limit on the number of background counts in the region of interest is 0.02-0.03 counts/keV/kg/y depending on the adopted mitigation technique., Comment: 10 pages, 6 figures, 6 tables

Published
2012
Full Text
View/download PDF

50. Search for 14.4 keV solar axions from M1 transition of Fe-57 with CUORE crystals

Author

The Cuore Collaboration, Alessandria, F., Ardito, R., Artusa, D. R., Avignone III, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, F., Bersani, A., Biassoni, M., Bloxham, T., Brofferio, C., Bucci, C., Cai, X. Z., Canonica, L., Capelli, S., Carbone, L., Cardani, L., Carrettoni, M., Casali, N., Chott, N., Clemenza, M., Cosmelli, C., Cremonesi, O., Creswick, R. J., Dafinei, I., Dally, A., Datskov, V., De Biasi, A., Decowski, M. P., Deninno, M. M., Di Domizio, S., di Vacri, M. L., Ejzak, L., Faccini, R., Fang, D. Q., Farach, H. A., Ferri, E., Ferroni, F., Fiorini, E., Franceschi, M. A., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Goett, J., Gorla, P., Gotti, C., Guardincerri, E., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Huang, H. Z., Kadel, R., Kazkaz, K., Keppel, G., Kogler, L., Kolomensky, Yu. G., Lenz, D., Li, Y. L., Ligi, C., Liu, X., Ma, Y. G., Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Moggi, N., Morganti, S., Napolitano, T., Newman, S., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., Orio, F., Orlandi, D., Ouellet, J. L., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pirro, S., Previtali, E., Rampazzo, V., Rimondi, F., Rosenfeld, C., Rusconi, C., Sangiorgio, S., Scielzo, N. D., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, M., Wang, B. S., Wang, H. W., Whitten Jr., C. A., Wise, T., Woodcraft, A., Zanotti, L., Zarra, C., Zhu, B. X., and Zucchelli, S.

Subjects
High Energy Physics - Experiment
Abstract

We report the results of a search for axions from the 14.4 keV M1 transition from Fe-57 in the core of the sun using the axio-electric effect in TeO2 bolometers. The detectors are 5x5x5 cm3 crystals operated at about 10 mK in a facility used to test bolometers for the CUORE experiment at the Laboratori Nazionali del Gran Sasso in Italy. An analysis of 43.65 kg d of data was made using a newly developed low energy trigger which was optimized to reduce the detectors energy threshold. An upper limit of 0.63 c kg-1 d-1 was established at 95% C.L.. From this value, a lower bound at 95% C.L. was placed on the Peccei-Quinn energy scale of fa >= 0.76 10**6 GeV for a value of S=0.55 for the flavor-singlet axial vector matrix element. Bounds are given for the interval 0.15 < S < 0.55., Comment: 14 pages, 6 figures, submitted to JCAP

Published
2012

Catalog

Books, media, physical & digital resources
See catalog results