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1. Latest Results from the CUORE Experiment

Author: Nutini, I, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Beretta, M, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Celi, E, Chiesa, D, Clemenza, M, Copello, S, Cremonesi, O, Creswick, RJ, D’Addabbo, A, Dafinei, I, Dell’Oro, S, Domizio, SD, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Ghislandi, S, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Kowalski, R, Ligi, C, Liu, R, Ma, L, Ma, YG, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, O’Donnell, T, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Quitadamo, S, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, and Sharma, V
Subjects: Mathematical Physics, Classical Physics, Condensed Matter Physics, General Physics, Classical physics, Condensed matter physics
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first cryogenic experiment searching for 0 νββ decay that has been able to reach the one-tonne mass scale. The detector, located at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy, consists of an array of 988 TeO 2 crystals arranged in a compact cylindrical structure of 19 towers. CUORE began its first physics data run in 2017 at a base temperature of about 10 mK and in April 2021 released its 3 rd result of the search for 0 νββ, corresponding to a tonne-year of TeO 2 exposure. This is the largest amount of data ever acquired with a solid state detector and the most sensitive measurement of 0 νββ decay in 130Te ever conducted. We present the current status of CUORE search for 0 νββ with the updated statistics of one tonne-yr. We finally give an update of the CUORE background model and the measurement of the 130Te 2 νββ decay half-life and decay to excited states of 130Xe , studies performed using an exposure of 300.7 kg yr.
Published: 2022

2. Latest results from the CUORE experiment

Author: Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Beretta, M, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Capelli, C, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Celi, E, Chiesa, D, Clemenza, M, Copello, S, Cremonesi, O, Creswick, RJ, D'Addabbo, A, Dafinei, I, Dell'Oro, S, Di Domizio, S, Di Lorenzo, S, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Ghislandi, S, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Kowalski, R, Ligi, C, Liu, R, Ma, L, Ma, YG, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, Nutini, I, O'Donnell, T, Olmi, M, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Quitadamo, S, Ressa, A, Rosenfeld, C, Rusconi, C, Sakai, M, and Sangiorgio, S
Abstract: The CUORE experiment is searching for the neutrinoless double β decay of the 130Te using cryogenic calorimeters. The CUORE detector consists of 988 TeO2 crystals packed in 19 towers and placed in a cryogenic facility with a base temperature of 10 mK. Crystals are enriched in the isotope 130Te which is the candidate for the neutrinoless double β decay. It is taking data since 2017 at the Laboratori Nazionali del Gran Sasso in Italy. Such a long operation of a bolometric experiment in stable condition has no precedent: by reaching 1 tonne-year of exposure CUORE set a fundamental milestone for any future experiment using this technology. The CUORE collaboration investigated the neutrinoless double β decay of 130Te exploiting the updated 1 tonne-year of statistics, setting a limit of 2.2 × 1025 yr at the 90% of credibility interval on the half-life, with a median sensitivity of 2.8 × 1025 yr.
Published: 2022

3. Search for double-beta decay of 130Te to the 0 + states of 130Xe with CUORE

Author: Adams, DQ, Alduino, C, Alfonso, K, Avignone, FTI, Azzolini, O, Bari, G, Bellini, F, Benato, G, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Celi, E, Chiesa, D, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, D’Addabbo, A, Dafinei, I, Davis, CJ, Dell’Oro, S, Domizio, SD, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Ligi, C, Ma, L, Ma, YG, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, Nutini, I, O’Donnell, T, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, Sharma, V, Singh, V, Sisti, M, Speller, D, and Surukuchi, PT
Subjects: Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The CUORE experiment is a large bolometric array searching for the lepton number violating neutrino-less double beta decay (0 νββ) in the isotope 130Te. In this work we present the latest results on two searches for the double beta decay (DBD) of 130Te to the first 02+ excited state of 130Xe : the 0 νββ decay and the Standard Model-allowed two-neutrinos double beta decay (2 νββ). Both searches are based on a 372.5 kg× yr TeO2 exposure. The de-excitation gamma rays emitted by the excited Xe nucleus in the final state yield a unique signature, which can be searched for with low background by studying coincident events in two or more bolometers. The closely packed arrangement of the CUORE crystals constitutes a significant advantage in this regard. The median limit setting sensitivities at 90% Credible Interval (C.I.) of the given searches were estimated as S1/20ν=5.6×1024yr for the 0 νββ decay and S1/22ν=2.1×1024yr for the 2 νββ decay. No significant evidence for either of the decay modes was observed and a Bayesian lower bound at 90 % C.I. on the decay half lives is obtained as: (T1/2)02+0ν>5.9×1024yr for the 0 νββ mode and (T1/2)02+2ν>1.3×1024yr for the 2 νββ mode. These represent the most stringent limits on the DBD of 130Te to excited states and improve by a factor ∼ 5 the previous results on this process.
Published: 2021

4. Novel technique for the study of pileup events in cryogenic bolometers

Author: Armatol, A, Armengaud, E, Armstrong, W, Augier, C, Avignone, FT, Azzolini, O, Barabash, A, Bari, G, Barresi, A, Baudin, D, Bellini, F, Benato, G, Beretta, M, Bergé, L, Biassoni, M, Billard, J, Boldrini, V, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cazes, A, Celi, E, Chang, C, Chapellier, M, Charrier, A, Chiesa, D, Clemenza, M, Colantoni, I, Collamati, F, Copello, S, Cremonesi, O, Creswick, RJ, Cruciani, A, D'Addabbo, A, D'Imperio, G, Dafinei, I, Danevich, FA, De Combarieu, M, De Jesus, M, De Marcillac, P, Dell'Oro, S, Di Domizio, S, Dompè, V, Drobizhev, A, Dumoulin, L, Fantini, G, Faverzani, M, Ferri, E, Ferri, F, Ferroni, F, Figueroa-Feliciano, E, Formaggio, J, Franceschi, A, Fu, C, Fu, S, Fujikawa, BK, Gascon, J, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gras, P, Gros, M, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Helis, DL, Huang, HZ, Huang, RG, Imbert, L, Johnston, J, Juillard, A, Karapetrov, G, Keppel, G, Khalife, H, Kobychev, VV, Kolomensky, YG, Konovalov, S, Liu, Y, Loaiza, P, Ma, L, Madhukuttan, M, Mancarella, F, Mariam, R, Marini, L, Marnieros, S, Martinez, M, Maruyama, RH, Mauri, B, Mayer, D, Mei, Y, and Milana, S
Abstract: Precise characterization of detector time resolution is of crucial importance for next-generation cryogenic-bolometer experiments searching for neutrinoless double-beta decay, such as CUPID, in order to reject background due to pileup of two-neutrino double-beta decay events. In this paper, we describe a technique developed to study the pileup rejection capability of cryogenic bolometers. Our approach, which consists of producing controlled pileup events with a programmable wave-form generator, has the benefit that we can reliably and reproducibly control the time separation and relative energy of the individual components of the generated pileup events. The resulting data allow us to optimize and benchmark analysis strategies to discriminate between individual and pileup pulses. We describe a test of this technique performed with a small array of detectors at the Laboratori Nazionali del Gran Sasso, in Italy; we obtain a 90% rejection efficiency against pulser-generated pileup events with rise time of ∼15ms down to time separation between the individual events of about 2ms.
Published: 2021

5. Study of the reactions e+e- →2 (π+π-)π0π0π0 and 2 (π+π-)π0π0η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation STUDY of the REACTIONS ... LEES J. P. et al.

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Cheaib, R, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Dey, B, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Lin, DX, Miyashita, TS, Ongmongkolkul, P, Oyang, J, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Shuve, BJ, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, and Banerjee, S
Abstract: We study the processes e+e-→2(π+π-)π0π0π0γ and 2(π+π-)π0π0ηγ in which an energetic photon is radiated from the initial state. The data were collected with the BABAR detector at SLAC. About 14 000 and 4700 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469 fb-1. The invariant mass of the hadronic final state defines the effective e+e- center-of-mass energy. The center-of-mass energies range from threshold to 4.5 GeV. From the mass spectra, the first ever measurements of the e+e-→2(π+π-)π0π0π0 and the e+e-→2(π+π-)π0π0η cross sections are performed. The contributions from ωπ+π-π0π0, η2(π+π-), and other intermediate states are presented. We observe the J/ψ and ψ(2S) in most of these final states and measure the corresponding branching fractions, many of them for the first time.
Published: 2021

6. New results from the CUORE experiment

Author: Giachero, A, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, D'Addabbo, A, Dafinei, I, Davis, CJ, Dell'Oro, S, Di Domizio, S, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, SH, Fujikawa, BK, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Hansen, E, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Ligi, C, Ma, YG, Ma, L, Marini, L, Maruyama, RH, Mayer, D, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagan, S, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, Sharma, V, Singh, V, Sisti, M, and Speller, D
Subjects: hep-ex
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first cryogenic experiment searching for neutrinoless double-beta (0vßß) decay that has been able to reach the one-ton scale. The detector, located at the Laboratori Nazionali del Gran Sasso in Italy, consists of an array of 988 TeO2 crystals arranged in a compact cylindrical structure of 19 towers. Following the completion of the detector construction in August 2016, CUORE began its first physics data run in 2017 at a base temperature of about 10 mK. Following multiple optimization campaigns in 2018, CUORE is currently in stable operating mode. In 2019, CUORE released its 2nd result of the search for 0vßß with a TeO2 exposure of 372.5 kg·yr and a median exclusion sensitivity to a 130Te 0vßß decay half-life of 1.7 · 1025 yr. We find no evidence for 0vßß decay and set a 90% C.I. (credibility interval) Bayesian lower limit of 3.2 · 1025 yr on the 130Te 0vßß decay half-life. In this work, we present the current status of CUORE's search for 0vßß, as well as review the detector performance. Finally, we give an update of the CUORE background model and the measurement of the 130Te two neutrino double-beta (2vßß) decay half-life.
Published: 2021

7. Pulse shape discrimination in CUPID-Mo using principal component analysis

Author: Huang, R, Armengaud, E, Augier, C, Barabash, AS, Bellini, F, Benato, G, Beno t, A, Beretta, M, Bergé, L, Billard, J, Borovlev, YA, Bourgeois, C, Brudanin, VB, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, De Combarieu, M, Dafinei, I, Danevich, FA, De Jesus, M, Dixon, T, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Guerard, E, Helis, DL, Huang, HZ, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, YG, Konovalov, SI, Loaiza, P, Ma, L, Makarov, EP, De Marcillac, P, Mariam, R, Marini, L, Marnieros, S, Misiak, D, Navick, XF, Nones, C, Norman, EB, Olivieri, E, Ouellet, JL, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Previtali, E, Redon, T, Rozov, S, Rusconi, C, Sanglard, V, Scarpaci, JA, Sch ffner, K, Schmidt, B, Shen, Y, Shlegel, VN, Siebenborn, B, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Weber, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, Zarytskyy, MM, and Zolotarova, AS
Subjects: Analysis and statistical methods, Calorimeters, Data processing methods, Double-beta decay detectors, physics.data-an, nucl-ex, physics.ins-det, Nuclear & Particles Physics, Physical Sciences, Engineering
Abstract: CUPID-Mo is a cryogenic detector array designed to search for neutrinoless double-beta decay (0νββ) of 100Mo. It uses 20 scintillating 100Mo-enriched Li2MoO4 bolometers instrumented with Ge light detectors to perform active suppression of α backgrounds, drastically reducing the expected background in the 0νββ signal region. As a result, pileup events and small detector instabilities that mimic normal signals become non-negligible potential backgrounds. These types of events can in principle be eliminated based on their signal shapes, which are different from those of regular bolometric pulses. We show that a purely data-driven principal component analysis based approach is able to filter out these anomalous events, without the aid of detector response simulations.
Published: 2021

8. A CUPID Li2100MoO4scintillating bolometer tested in the CROSS underground facility

Author: Armatol, A, Armengaud, E, Armstrong, W, Augier, C, Iii, FTA, Azzolini, O, Bandac, IC, Barabash, AS, Bari, G, Barresi, A, Baudin, D, Bellini, F, Benato, G, Beretta, M, Bergé, L, Bourgeois, C, Biassoni, M, Billard, J, Boldrini, V, Branca, A, Brofferio, C, Bucci, C, Calvo-Mozota, JM, Camilleri, J, Candela, A, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cazes, A, Celi, E, Chang, C, Chapellier, M, Charrier, A, Chiesa, D, Clemenza, M, Colantoni, I, Collamati, F, Copello, S, Cremonesi, O, Creswick, RJ, Cruciani, A, D'Addabbo, A, D'Imperio, G, Dafinei, I, Danevich, FA, De Combarieu, M, Deo, MD, Jesus, MD, De Marcillac, P, Dell'Oro, S, Domizio, SD, Dompe, V, Drobizhev, A, Dumoulin, L, Fantini, G, Faverzani, M, Ferri, E, Ferri, F, Ferroni, F, Figueroa-Feliciano, E, Formaggio, J, Franceschi, A, Fu, C, Fu, S, Fujikawa, BK, Gascon, J, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gras, P, Gros, M, Guerard, E, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Helis, DL, Huang, HZ, Huang, RG, Ianni, A, Imbert, L, Johnston, J, Juillard, A, Karapetrov, G, Keppel, G, Khalife, H, Kobychev, VV, Kolomensky, YG, Konovalov, SI, Liu, Y, Loaiza, P, Ma, L, Madhukuttan, M, Mancarella, F, Mariam, R, and Marini, L
Subjects: Physical Sciences, Engineering, Nuclear & Particles Physics, Physical sciences
Abstract: A scintillating bolometer based on a large cubic Li2100MoO4 crystal (45 mm side) and a Ge wafer (scintillation detector) has been operated in the CROSS cryogenic facility at the Canfranc underground laboratory in Spain. The dual-readout detector is a prototype of the technology that will be used in the next-generation 0ν2β experiment CUPID . The measurements were performed at 18 and 12 mK temperature in a pulse tube dilution refrigerator. This setup utilizes the same technology as the CUORE cryostat that will host CUPID and so represents an accurate estimation of the expected performance. The Li2100MoO4 bolometer shows a high energy resolution of 6 keV FWHM at the 2615 keV γ line. The detection of scintillation light for each event triggered by the Li2100MoO4 bolometer allowed for a full separation (∼8σ) between γ(β) and α events above 2 MeV . The Li2100MoO4 crystal also shows a high internal radiopurity with 228Th and 226Ra activities of less than 3 and 8 μBq/kg, respectively. Taking also into account the advantage of a more compact and massive detector array, which can be made of cubic-shaped crystals (compared to the cylindrical ones), this test demonstrates the great potential of cubic Li2100MoO4 scintillating bolometers for high-sensitivity searches for the 100Mo 0ν2β decay in CROSS and CUPID projects.
Published: 2021

9. Characterization of cubic Li 2100 MoO 4 crystals for the CUPID experiment

Author: Armatol, A, Armengaud, E, Armstrong, W, Augier, C, Avignone, FT, Azzolini, O, Barabash, A, Bari, G, Barresi, A, Baudin, D, Bellini, F, Benato, G, Beretta, M, Bergé, L, Biassoni, M, Billard, J, Boldrini, V, Branca, A, Brofferio, C, Bucci, C, Camilleri, J, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cazes, A, Celi, E, Chang, C, Chapellier, M, Charrier, A, Chiesa, D, Clemenza, M, Colantoni, I, Collamati, F, Copello, S, Cremonesi, O, J. Creswick, R, Cruciani, A, D’Addabbo, A, D’Imperio, G, Dafinei, I, A. Danevich, F, de Combarieu, M, De Jesus, M, de Marcillac, P, Dell’Oro, S, Di Domizio, S, Dompè, V, Drobizhev, A, Dumoulin, L, Fantini, G, Faverzani, M, Ferri, E, Ferri, F, Ferroni, F, Figueroa-Feliciano, E, Formaggio, J, Franceschi, A, Fu, C, Fu, S, Fujikawa, BK, Gascon, J, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gras, P, Gros, M, Gutierrez, TD, Han, K, Hansen, EV, Heeger, KM, Helis, DL, Huang, HZ, Huang, RG, Imbert, L, Johnston, J, Juillard, A, Karapetrov, G, Keppel, G, Khalife, H, Kobychev, VV, Kolomensky, YG, Konovalov, S, Liu, Y, Loaiza, P, Ma, L, Madhukuttan, M, Mancarella, F, Mariam, R, Marini, L, Marnieros, S, Martinez, M, Maruyama, RH, Mauri, B, Mayer, D, Mei, Y, and Milana, S
Subjects: physics.ins-det, nucl-ex, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The CUPID Collaboration is designing a tonne-scale, background-free detector to search for double beta decay with sufficient sensitivity to fully explore the parameter space corresponding to the inverted neutrino mass hierarchy scenario. One of the CUPID demonstrators, CUPID-Mo, has proved the potential of enriched Li2100MoO4 crystals as suitable detectors for neutrinoless double beta decay search. In this work, we characterised cubic crystals that, compared to the cylindrical crystals used by CUPID-Mo, are more appealing for the construction of tightly packed arrays. We measured an average energy resolution of (6.7 ± 0.6) keV FWHM in the region of interest, approaching the CUPID target of 5 keV FWHM. We assessed the identification of α particles with and without a reflecting foil that enhances the scintillation light collection efficiency, proving that the baseline design of CUPID already ensures a complete suppression of this α-induced background contribution. We also used the collected data to validate a Monte Carlo simulation modelling the light collection efficiency, which will enable further optimisations of the detector.
Published: 2021

10. Status and results from the CUORE experiment

Author: Campani, A, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'oro, S, Di Domizio, S, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Ligi, C, Ma, YG, Ma, L, Marini, L, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, Sharma, V, Singh, V, Sisti, M, Speller, D, Surukuchi, PT, Taffarello, L, and Terranova, F
Subjects: Neutrinoless double beta decay, two-neutrino double beta decay, background model, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is a tonne-scale cryogenic experiment located at the Laboratori Nazionali del Gran Sasso that exploits bolometric technique to search for neutrinoless double beta decay (0νββ) of 130Te. The detector consists of a segmented array of 988 natural TeO2 cubic crystals arranged in a cylindrical compact structure of 19 towers. The detector construction was completed in August 2016 and data taking started in Spring 2017. In this work, we present a brief description of the bolometric technique for rare events search and the CUORE detector, then we concentrate on the data analysis results. In this respect, we focus on the procedure for data processing and on the first 0νββ results we obtained from a total TeO2 exposure of 86.3kg yr. Next, we illustrate the main background sources and the CUORE background model, from which we obtain the most precise measurement of 130Te 2νββ half-life to date. Finally, we discuss the improvements achieved with 2018 and 2019 detector optimization campaigns and the current perspectives of our experiment.
Published: 2020

11. Perspectives of lowering CUORE thresholds with Optimum Trigger

Author: Dompe, V, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Domizio, SD, Drobizhev, A, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, Singh, V, Sisti, M, Speller, D, Taffarello, L, and Terranova, F
Subjects: Atomic, Molecular, Nuclear, Particle and Plasma Physics, Condensed Matter Physics, Other Physical Sciences
Abstract: CUORE is a cryogenic experiment that focuses on the search of neutrinoless double beta decay in 130Te and it is located at the Gran Sasso National Laboratories. Its detector consists of 988 TeO2 crystals operating at a base temperature of ∼10 mK. It is the first ton-scale bolometric experiment ever realized for this purpose. Thanks to its large target mass and ultra-low background, the CUORE detector is also suitable for the search of other rare phenomena. In particular the low energy part of the spectra is interesting for the detection of WIMP-nuclei scattering reactions. One of the most important requirements to perform these studies is represented by the achievement of a stable energy threshold lower than 10 keV. Here, the CUORE capability to accomplish this purpose using a low energy software trigger will be presented and described.
Published: 2020

12. Controlling Tcof iridium films using the proximity effect

Author: Hennings-Yeomans, R, Chang, CL, Ding, J, Drobizhev, A, Fujikawa, BK, Han, S, Karapetrov, G, Kolomensky, YG, Novosad, V, O'Donnell, T, Ouellet, JL, Pearson, J, Polakovic, T, Reggio, D, Schmidt, B, Sheff, B, Singh, V, Smith, RJ, Wang, G, Welliver, B, Yefremenko, VG, and Zhang, J
Subjects: cond-mat.supr-con, hep-ex, nucl-ex, physics.ins-det, Mathematical Sciences, Physical Sciences, Engineering, Applied Physics
Abstract: A superconducting Transition-Edge Sensor (TES) with low- T c is essential in high resolution calorimetric detection. With the motivation of developing sensitive calorimeters for applications in cryogenic neutrinoless double beta decay searches, we have been investigating methods to reduce the T c of an Ir film down to 20 mK. Utilizing the proximity effect between a superconductor and a normal metal, we found two room temperature fabrication recipes for making Ir-based low- T c films. In the first approach, an Ir film sandwiched between two Au films, a Au/Ir/Au trilayer, has a tunable T c in the range of 20-100 mK depending on the relative thicknesses. In the second approach, a paramagnetic Pt thin film is used to create the Ir/Pt bilayer with a tunable T c in the same range. We present a detailed study of fabrication and characterization of Ir-based low- T c films and compare the experimental results to the theoretical models. We show that Ir-based films with a predictable and reproducible critical temperature can be consistently fabricated for use in large scale detector applications.
Published: 2020

13. Lowering the Energy Threshold of the CUORE Experiment: Benefits in the Surface Alpha Events Reconstruction: Comparison Between Optimum Trigger and Derivative Trigger Performance in the Search for 0 νββ

Author: Campani, A, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, D’Addabbo, A, D’Aguanno, D, Dafinei, I, Davis, CJ, Dell’Oro, S, Di Domizio, S, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Ligi, C, Ma, YG, Ma, L, Marini, L, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O’Donnell, T, Ouellet, JL, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, Sharma, V, Singh, V, Sisti, M, Speller, D, Taffarello, L, Terranova, F, and Tomei, C
Subjects: Neutrinoless double beta decay, Trigger algorithms, Digital signal processing, Bolometers for dark matter research, Mathematical Physics, Classical Physics, Condensed Matter Physics, General Physics
Abstract: CUORE is a tonne-scale cryogenic experiment located at the Laboratori Nazionali del Gran Sasso that exploits bolometric technique to search for neutrinoless double beta decay of 130Te. Thanks to its very low background and large mass, CUORE is also a powerful tool to study a broad class of phenomena, such as solar axions and WIMP scattering. The ability to conduct such sensitive searches crucially depends on the energy threshold, which has to be kept as low as possible. In this contribution, we show how the trigger algorithm affects the sensitivity to low-energy phenomena and the interpretation of the energy spectrum. In particular, we focus on the impact that the trigger algorithm has on the identification of the coincidence events among different crystals and, consequently, on the reconstruction of the background.
Published: 2020

14. Precise measurement of 2 νββ decay of 100 Mo with the CUPID-Mo detection technology

Author: Armengaud, E, Augier, C, Barabash, AS, Bellini, F, Benato, G, Benoît, A, Beretta, M, Bergé, L, Billard, J, Borovlev, YA, Bourgeois, C, Briere, M, Brudanin, V, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, de Combarieu, M, Dafinei, I, Danevich, FA, De Jesus, M, Dumoulin, L, Eitel, K, Elkhoury, E, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Guerard, E, Helis, DL, Huang, HZ, Huang, R, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, YG, Konovalov, SI, Leder, A, Kotila, J, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Marini, L, Marnieros, S, Misiak, D, Navick, XF, Nones, C, Novati, V, Olivieri, E, Ouellet, JL, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Previtali, E, Redon, T, Rozov, S, Rusconi, C, Sanglard, V, Schäffner, K, Schmidt, B, Shen, Y, Shlegel, VN, Siebenborn, B, Singh, V, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Weber, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, and Zolotarova, AS
Subjects: nucl-ex, physics.ins-det, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: We report the measurement of the two-neutrino double-beta (2 νββ) decay of 100Mo to the ground state of 100Ru using lithium molybdate (Li2100MoO4) scintillating bolometers. The detectors were developed for the CUPID-Mo program and operated at the EDELWEISS-III low background facility in the Modane underground laboratory (France). From a total exposure of 42.235 kg× day, the half-life of 100Mo is determined to be T1/22ν=[7.12-0.14+0.18(stat.)±0.10(syst.)]×1018 years. This is the most accurate determination of the 2 νββ half-life of 100Mo to date.
Published: 2020

15. Search for lepton-flavor-violating decays D0 →x0e±μ SEARCH for LEPTON-FLAVOR-VIOLATING DECAYS ⋯ LEES J. P. et al.

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Cheaib, R, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Dey, B, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Lin, DX, Miyashita, TS, Ongmongkolkul, P, Oyang, J, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Shuve, BJ, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, and Banerjee, S
Subjects: hep-ex
Abstract: We present a search for seven lepton-flavor-violating neutral charm meson decays of the type D0→X0e±μ, where X0 represents a π0, KS0, K̄∗0, ρ0, φ, ω, or η meson. The analysis is based on 468 fb-1 of e+e- annihilation data collected at or close to the (4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signals are observed, and we establish 90% confidence level upper limits on the branching fractions in the range (5.0-22.5)×10-7. The limits are between 1 and 2 orders of magnitude more stringent than previous measurements.
Published: 2020

16. Theia: an advanced optical neutrino detector

Author: Askins, M, Bagdasarian, Z, Barros, N, Beier, EW, Blucher, E, Bonventre, R, Bourret, E, Callaghan, EJ, Caravaca, J, Diwan, M, Dye, ST, Eisch, J, Elagin, A, Enqvist, T, Fischer, V, Frankiewicz, K, Grant, C, Guffanti, D, Hagner, C, Hallin, A, Jackson, CM, Jiang, R, Kaptanoglu, T, Klein, JR, Kolomensky, YG, Kraus, C, Krennrich, F, Kutter, T, Lachenmaier, T, Land, B, Lande, K, Learned, JG, Lozza, V, Ludhova, L, Malek, M, Manecki, S, Maneira, J, Maricic, J, Martyn, J, Mastbaum, A, Mauger, C, Moretti, F, Napolitano, J, Naranjo, B, Nieslony, M, Oberauer, L, Orebi Gann, GD, Ouellet, J, Pershing, T, Petcov, ST, Pickard, L, Rosero, R, Sanchez, MC, Sawatzki, J, Seo, SH, Smiley, M, Smy, M, Stahl, A, Steiger, H, Stock, MR, Sunej, H, Svoboda, R, Tiras, E, Trzaska, WH, Tzanov, M, Vagins, M, Vilela, C, Wang, Z, Wang, J, Wetstein, M, Wilking, MJ, Winslow, L, Wittich, P, Wonsak, B, Worcester, E, Wurm, M, Yang, G, Yeh, M, Zimmerman, ED, Zsoldos, S, and Zuber, K
Subjects: physics.ins-det, hep-ex, nucl-ex, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: New developments in liquid scintillators, high-efficiency, fast photon detectors, and chromatic photon sorting have opened up the possibility for building a large-scale detector that can discriminate between Cherenkov and scintillation signals. Such a detector could reconstruct particle direction and species using Cherenkov light while also having the excellent energy resolution and low threshold of a scintillator detector. Situated deep underground, and utilizing new techniques in computing and reconstruction, this detector could achieve unprecedented levels of background rejection, enabling a rich physics program spanning topics in nuclear, high-energy, and astrophysics, and across a dynamic range from hundreds of keV to many GeV. The scientific program would include observations of low- and high-energy solar neutrinos, determination of neutrino mass ordering and measurement of the neutrino CP-violating phase δ, observations of diffuse supernova neutrinos and neutrinos from a supernova burst, sensitive searches for nucleon decay and, ultimately, a search for neutrinoless double beta decay, with sensitivity reaching the normal ordering regime of neutrino mass phase space. This paper describes Theia, a detector design that incorporates these new technologies in a practical and affordable way to accomplish the science goals described above.
Published: 2020

17. The CUORE Detector and Results

Author: Nutini, I, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, D’Addabbo, A, D’Aguanno, D, Dafinei, I, Davis, CJ, Dell’Oro, S, Domizio, SD, Dompè, V, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Ligi, C, Ma, YG, Ma, L, Marini, L, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nikkel, J, Nones, C, Norman, EB, Novati, V, Nucciotti, A, O’Donnell, T, Ouellet, JL, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, Singh, V, Sisti, M, Speller, D, Taffarello, L, Terranova, F, Tomei, C, and Vignati, M
Subjects: Neutrinos, nu beta beta, Macro-calorimeters, Cryogenics, CUORE, Mathematical Physics, Classical Physics, Condensed Matter Physics, General Physics
Abstract: The cryogenic underground observatory for rare events (CUORE) is a cryogenic experiment searching for neutrinoless double beta decay (0 νββ) of 130Te. The detector consists of an array of 988TeO2 crystals arranged in a compact cylindrical structure of 19 towers. We report the CUORE initial operations and optimization campaigns. We then present the CUORE results on 0 νββ and 2 νββ decay of 130Te obtained from the analysis of the physics data acquired in 2017.
Published: 2020

18. CUORE: The first bolometric experiment at the ton scale for the search for neutrino-less double beta decay

Author: Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Di Domizio, S, Dompè, V, Drobizhev, A, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Ma, YG, Marini, L, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, Singh, V, Sisti, M, Speller, D, Taffarello, L, Terranova, F, and Tomei, C
Subjects: Neutrinoless double beta decay, Ton-scale detector, Bolometers, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the most massive bolometric experiment searching for neutrino-less double beta (0νββ) decay. The detector consists of an array of 988 TeO2 crystals (742 kg) arranged in a compact cylindrical structure of 19 towers. This paper will describe the CUORE experiment, including the cryostat, and present the detector performance during the first year of running. Additional detail will describe the effort made in improving the energy resolution in the 130Te 0νββ decay region of interest (ROI) and the suppression of backgrounds. A description of work to lower the energy threshold in order to give CUORE the sensitivity to search for other rare events, such as dark matter, will also be provided.
Published: 2020

19. Resonances in e+e- annihilation near 2.2 GeV RESONANCES in E+E- ANNIHILATION NEAR 2.2 GEV LEES J. P. et al.

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Cheaib, R, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Dey, B, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Shuve, BJ, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, and Davis, CL
Abstract: Using the initial-state radiation method, the e+e-→KSKL cross section from 1.98 to 2.54 GeV is measured in a data sample of 469 fb-1 collected with the BABAR detector. The results are used in conjunction with previous BABAR results for the e+e-→K+K-, e+e-→π+π-, e+e-→π+π-η, and e+e-→ωππ cross sections to investigate the nature of the resonance structure recently observed by the BESIII experiment in the e+e-→K+K- cross section.
Published: 2020

20. Initial performance of the CUORE detector

Author: Cushman, JS, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Domizio, SD, Vacri, MLD, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, HZ, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Reindl, F, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, Schmidt, J, Scielzo, ND, and Singh, V
Subjects: Atomic, Molecular, Nuclear, Particle and Plasma Physics, Condensed Matter Physics, Other Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: CUORE, the Cryogenic Underground Observatory for Rare Events, is an experiment searching for the neutrinoless double-beta decay of 130Te. The first CUORE dataset was acquired in May and June 2017 and consisted of 10.6 kg-yr of TeO2 exposure, with several days of calibration data before and after the physics dataset. We discuss here the initial performance of the CUORE detector and cryostat in this first dataset.
Published: 2020

21. First results from the CUORE experiment

Author: Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Domizio, SD, Vacri, MLD, Dompe, V, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, HZ, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Reindl, F, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, Schmidt, J, and Scielzo, ND
Subjects: Atomic, Molecular, Nuclear, Particle and Plasma Physics, Condensed Matter Physics, Other Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: CUORE (Cryogenic Underground Observatory for Rare Events) is a ton-scale experiment aiming to the search of neutrino-less double beta decay in 130Te with a projected sensitivity on the Majorana effective mass close to the inverted hierarchy region. The CUORE detector consists of a segmented array of 988 TeO2 bolometers, organized in 19 towers and operated at a temperature of about 10 mK thanks to a custom cryogenic system which, besides the uncommon scale, observes several constraints from the radio-purity of the materials to the mechanical decoupling of the cooling systems. The successful commissioning of the CUORE cryogenic system has been completed early in 2016 and represents an outstanding achievement by itself. The installation of the detector proceeded along 2016 followed by the cooldown to base temperature at the beginning of 2017. The CUORE detector is now operational and has been taking science data since Spring 2017. With the first ∼3 weeks of collected data, we present here the most stringent constraint on the 130Te half-live for the neutrino-less double beta decay.
Published: 2020

22. Results of cuore

Author: Dell'Oro, S, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Di Domizio, S, Dompè, V, Drobizhev, A, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Ma, YG, Ma, L, Marini, L, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pagnanini, L, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Schmidt, B, Scielzo, ND, Singh, V, Sisti, M, Speller, D, Taffarello, L, and Terranova, F
Subjects: nucl-ex
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) at the Laboratori Nazionali del Gran Sasso, Italy, is the world's largest bolometric experiment. The detector consists of an array of 988 TeO2 crystals, for a total mass of 742 kg. CUORE is presently in data taking, searching for the neutrinoless double beta decay of 130Te. CUORE is operational since the spring of 2017. The initial science run already allowed to provide the most stringent limit on the neutrinoless double beta decay half-life of 130Te, and to perform the most precise measurement of the two-neutrino double beta decay half-life. Up to date, we have more than doubled the collected exposure. In this talk, we presenteded the most recent results and discuss the present status of the CUORE experiment.
Published: 2020

23. The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospects

Author: Armengaud, E, Augier, C, Barabash, AS, Bellini, F, Benato, G, Benoît, A, Beretta, M, Bergé, L, Billard, J, Borovlev, YA, Bourgeois, C, Briere, M, Brudanin, VB, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, de Combarieu, M, Dafinei, I, Danevich, FA, De Jesus, M, Dumoulin, L, Eitel, K, Elkhoury, E, Ferri, F, Fujikawa, BK, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Guerard, E, Helis, DL, Huang, HZ, Huang, R, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, YG, Konovalov, SI, Leder, A, Loaiza, P, Ma, L, Makarov, EP, de Marcillac, P, Marini, L, Marnieros, S, Misiak, D, Navick, XF, Nones, C, Novati, V, Olivieri, E, Ouellet, JL, Pagnanini, L, Pari, P, Pattavina, L, Paul, B, Pavan, M, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, OG, Previtali, E, Redon, T, Rozov, S, Rusconi, C, Sanglard, V, Schäffner, K, Schmidt, B, Shen, Y, Shlegel, VN, Siebenborn, B, Singh, V, Sorbino, S, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Weber, M, Welliver, B, Winslow, L, Xue, M, Yakushev, E, and Zolotarova, AS
Subjects: physics.ins-det, hep-ex, nucl-ex, Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: CUPID-Mo is a bolometric experiment to search for neutrinoless double-beta decay (0 νββ) of 100Mo. In this article, we detail the CUPID-Mo detector concept, assembly and installation in the Modane underground laboratory, providing results from the first datasets. The CUPID-Mo detector consists of an array of 20 100Mo -enriched 0.2 kg Li 2MoO 4 crystals operated as scintillating bolometers at ∼20mK. The Li 2MoO 4 crystals are complemented by 20 thin Ge optical bolometers to reject α events by the simultaneous detection of heat and scintillation light. We observe a good detector uniformity and an excellent energy resolution of 5.3 keV (6.5 keV) FWHM at 2615 keV, in calibration (physics) data. Light collection ensures the rejection of α particles at a level much higher than 99.9% – with equally high acceptance for γ/β events – in the region of interest for 100Mo 0 νββ. We present limits on the crystals’ radiopurity: ≤3μBq/kg of 226Ra and ≤2μBq/kg of 232Th. We discuss the science reach of CUPID-Mo, which can set the most stringent half-life limit on the 100Mo 0 νββ decay in half-a-year’s livetime. The achieved results show that CUPID-Mo is a successful demonstrator of the technology developed by the LUMINEU project and subsequently selected for the CUPID experiment, a proposed follow-up of CUORE, the currently running first tonne-scale bolometric 0 νββ experiment.
Published: 2020

24. Search for B-→ Λ p ν ν with the B a B ar experiment SEARCH for B-→ Λ p ν ν ... LEES J. P. et al.

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Cheaib, R, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Dey, B, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, Davis, CL, and Denig, AG
Subjects: hep-ex
Abstract: A search for the rare flavor-changing neutral current process B-→Λpνν using data from the BABAR experiment has been performed. A total of 424 fb-1 of e+e-collision data collected at the center-of-mass energy of the Ï'(4S) resonance is used in this study, corresponding to a sample of (471±3)×106 BB pairs. Signal B-→Λpνν candidates are identified by first fully reconstructing a B+ decay in one of many possible exclusive decays to hadronic final states, then examining detector activity that is not associated with this reconstructed B+ decay for evidence of a signal B-→Λpνν decay. The data yield is found to be consistent with the expected background contribution under a null signal hypothesis, resulting in an upper limit of B(B-→Λpνν)
Published: 2019

25. Precise measurement of 2 ν 2 β decay of 100Mo with Li2MoO4 low temperature detectors: Preliminary results

Author: Armengaud, E, Augier, C, Barabash, AS, Bellini, F, Beno, A, Beretta, M, Bergé, L, Besson, N, Billard, J, Borovlev, YA, Bourgeois, C, Brudanin, V, Camus, P, Cardani, L, Casali, N, Cazes, A, Chapellier, M, Charlieux, F, De Combarieu, M, Danevich, FA, Dafinei, I, De Jesus, M, Dumoulin, L, Eitel, K, Ferri, F, Fujikawa, BF, Gascon, J, Gironi, L, Giuliani, A, Grigorieva, VD, Gros, M, Guerard, E, Huang, HZ, Huang, R, Johnston, J, Juillard, A, Khalife, H, Kleifges, M, Kobychev, VV, Kolomensky, YG, Konovalov, SI, Leder, A, Kotila, J, Loaiza, P, Maisonobe, R, Makarov, EP, De Marcillac, P, Marnieros, S, Navick, XF, Nones, C, Novati, V, Olivieri, E, Pagnanini, L, Pari, P, Pattavina, L, Pavan, M, Paul, B, Peng, H, Pessina, G, Pirro, S, Poda, DV, Polischuk, O, Previtali, E, Queguiner, E, Redon, T, Rozov, S, Rusconi, C, Sanglard, V, Schäffner, K, Shen, Y, Schmidt, B, Shlegel, VN, Siebenborn, B, Sorbino, S, Tomei, C, Tretyak, VI, Umatov, VI, Vagneron, L, Velázquez, M, Vignati, M, Weber, M, Winslow, L, Xue, M, Yakushev, E, and Zolotarova, AS
Abstract: The half-life of 100Mo relatively to the 2ν2β decay to the ground state of 100Ru was measured as T1/2 = (6.99±0.15) × 1018 yr with the help of enriched in 100Mo lithium molybdate scintillating bolometers in the EDELWEISS-III low background set-up at the Modane underground laboratory. This is the most accurate value of the 2ν2β half-life of 100Mo.
Published: 2019

26. Characterization of light production and transport in tellurium dioxide crystals

Author: Huang, RG, Benato, G, Caravaca, J, Kolomensky, YG, Land, BJ, Gann, GDO, and Schmidt, B
Subjects: Cherenkov and transition radiation, Double-beta decay detectors, Particle identification methods, Scintillators, scintillation and light emission processes, physics.ins-det, nucl-ex, Scintillators, scintillation and light emission processes, Other Physical Sciences, Nuclear & Particles Physics, Physical Sciences, Engineering
Abstract: Simultaneous measurement of phonon and light signatures is an effective way to reduce the backgrounds and increase the sensitivity of CUPID, a next-generation bolometric neutrinoless double-beta decay (0νββ) experiment. Light emission in tellurium dioxide (TeO2) crystals, one of the candidate materials for CUPID, is dominated by faint Cherenkov radiation, and the high refractive index of TeO2 complicates light collection. Positive identification of 0νββ events therefore requires high-sensitivity light detectors and careful optimization of light transport. A detailed microphysical understanding of the optical properties of TeO2 crystals is essential for such optimization. We present a set of quantitative measurements of light production and transport in a cubic TeO2 crystal, verified with a complete optical model and calibrated against a UVT acrylic standard. We measure the optical surface properties of the crystal, and set stringent limits on the amount of room-temperature scintillation in TeO2 for β and α particles of 5.3 and 8 photons/MeV, respectively, at 90% confidence. The techniques described here can be used to optimize and verify the particle identification capabilities of CUPID.
Published: 2019

27. Double-beta decay of 130Te to the first 0 + excited state of 130Xe with CUORE-0

Author: Alduino, C, Alfonso, K, Artusa, DR, Avignone III, FT, Azzolini, O, Banks, TI, Bari, G, Beeman, JW, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, 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, RJ, Cushman, JS, D’Addabbo, A, Dafinei, I, Davis, CJ, Dell’Oro, S, Deninno, MM, Domizio, SD, Vacri, MLD, Drobizhev, A, Fang, DQ, Faverzani, M, Feintzeig, J, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Haller, EE, Han, K, Hansen, E, Heeger, KM, Hennings-Yeomans, R, Hickerson, KP, Huang, HZ, Kadel, R, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Liu, X, Ma, YG, Maino, M, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Mosteiro, PJ, Napolitano, T, Nones, C, Norman, EB, Nucciotti, A, O’Donnell, T, Orio, F, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, and Rosenfeld, C
Subjects: Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: We report on a search for double beta decay of 130Te to the first 0 + excited state of 130Xe using a 9.8kg·yr exposure of 130Te collected with the CUORE-0 experiment. In this work we exploit different topologies of coincident events to search for both the neutrinoless and two-neutrino double beta decay modes. We find no evidence for either mode and place lower bounds on the half-lives: T01+0ν>7.9·1023yr and T01+2ν>2.4·1023yr (90%CL). Combining our results with those obtained by the CUORICINO experiment, we achieve the most stringent constraints available for these processes: T01+0ν>1.4·1024yr and T01+2ν>2.5·1023yr (90%CL).
Published: 2019

28. The CUORE cryostat: An infrastructure for rare event searches at millikelvin temperatures

Author: Alduino, C, Alessandria, F, Balata, M, Biare, D, Biassoni, M, Bucci, C, Caminata, A, Canonica, L, Cappelli, L, Ceruti, G, Chiarini, A, Chott, N, Clemenza, M, Copello, S, Corsi, A, Cremonesi, O, D'Addabbo, A, Dell'Oro, S, Di Paolo, L, Di Vacri, ML, Drobizhev, A, Faverzani, M, Ferri, E, Franceschi, MA, Gaigher, R, Gladstone, L, Gorla, P, Guetti, M, Ioannucci, L, Kolomensky, YG, Ligi, C, Marini, L, Napolitano, T, Nisi, S, Nucciotti, A, Nutini, I, O'Donnell, T, Orlandi, D, Ouellet, JL, Pagliarone, CE, Pattavina, L, Pelosi, A, Perego, M, Previtali, E, Romualdi, B, Rotilio, A, Rusconi, C, Santone, D, Singh, V, Sisti, M, Taffarello, L, Tatananni, E, Terranova, F, Wagaarachchi, SL, Wallig, J, and Zarra, C
Subjects: physics.ins-det, nucl-ex, General Physics, Classical Physics, Interdisciplinary Engineering
Abstract: The CUORE experiment is the world's largest bolometric experiment. The detector consists of an array of 988 TeO2 crystals, for a total mass of 742 kg. CUORE is presently taking data at the Laboratori Nazionali del Gran Sasso, Italy, searching for the neutrinoless double beta decay of 130Te. A large custom cryogen-free cryostat allows reaching and maintaining a base temperature of ∼10 mK, required for the optimal operation of the detector. This apparatus has been designed in order to achieve a low noise environment, with minimal contribution to the radioactive background for the experiment. In this paper, we present an overview of the CUORE cryostat, together with a description of all its sub-systems, focusing on the solutions identified to satisfy the stringent requirements. We briefly illustrate the various phases of the cryostat commissioning and highlight the relevant steps and milestones achieved each time. Finally, we describe the successful cooldown of CUORE.
Published: 2019

29. CUORE: The first bolometric experiment at the ton scale for rare decay searches

Author: Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Domizio, SD, Vacri, MLD, Dompè, V, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Reindl, F, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, and Santone, D
Subjects: Cryogenic, Superconductive Devices, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay that has been able to reach the 1-ton scale. The detector consists of an array of 988 TeO2 crystals arranged in a cylindrical compact structure of 19 towers. The construction of the experiment and, in particular, the installation of all towers in the cryostat was completed in August 2016 and data taking started in spring 2017. In this contribution the achievement of the commissioning phase and the performance of the detector and the cryostat during the first physics run will be presented.
Published: 2019

30. Results from the CUORE experiment

Author: Chiesa, D, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Di Domizio, S, Dompè, V, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Reindl, F, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, and Schmidt, B
Subjects: Atomic, Molecular, Nuclear, Particle and Plasma Physics, Condensed Matter Physics, Other Physical Sciences
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta (0νββ) decay that has been able to reach the 1-ton scale. The detector consists of an array of 988 TeO2 crystals arranged in a cylindrical compact structure of 19 towers. The construction of the experiment and, in particular, the installation of all towers in the cryostat was completed in 2016 and data taking started in 2017. In this conference we present the 0νββ decay results of CUORE from examining a total TeO2 exposure of 86.3 kg yr, characterized by an effective energy resolution of 7.7 keV FWHM and a background in the region of interest of 0.014 counts/(keV kg yr). Based on these data, CUORE places a lower limit on the 0νββ decay half-life of (90% C.L.). We then discuss the latest updates in the analysis of background and in the evaluation of the half-life of 2νββ decay of 130Te.
Published: 2019

31. Results from the CUORE experiment

Author: Moggi, N, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Di Domizio, S, Dompè, V, Drobizhev, A, Fang, DQ, Fantini, G, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fu, Z, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Gruszko, J, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Morganti, S, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, and Schmidt, B
Subjects: Astronomy & Astrophysics
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay that has been able to reach the 1-ton scale. In this talk we present the neutrinoless doube beta decay results of CUORE from examining a total TeO2 exposure of 86.3 kg yr, characterized by an effective energy resolution of 7.7 keV FWHM and a background in the region of interest of 0.014 counts/(keV kg yr). In this physics run, CUORE placed a lower limit on the decay half-life of 130Te > 1.3×1025 yr (90% C.L.). We then discuss the additional improvements in the detector performance achieved in 2018 and the latest update on the evaluation of the background budget.
Published: 2019

32. Results from the CUORE experiment

Author: Campani, A, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'oro, S, Deninno, MM, Di Domizio, S, Dompè, V, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomansi, R, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pozzi, S, Previtali, E, Puiu, A, Reindl, F, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, and Scielzo, ND
Subjects: Astronomy & Astrophysics
Abstract: Neutrinoless double beta decay (0νββ) is a rare, second-order nuclear transition that occurs only if neutrinos are massive Majorana particles or through new physics beyond Standard Model. This process explicitly violates the lepton number (L) by two units and, therefore, the observation of 0νββ would demonstrate that L is not a symmetry of nature. Combined with flavour mixing and cosmological measurements, it can provide unique contraints on neutrino mass scale and establish whether neutrinos are Dirac or Majorana particles. The Cryogenic Underground Observatory for Rare Events (CUORE) is an experiment located at the LNGS searching for 0νββ decay of 130Te. CUORE exploits the bolometric technique to reach high resolution around the Q-value (2527.5 keV). It consists of an array of 988 natural TeO2 cubic crystals grouped into 19 towers. With a total active mass of 742 kg (∼206 kg of 130Te), CUORE is operated at very low temperature with a new 3He/4He refrigerator. Data taking started at the beginning of 2017. After a brief introduction on the detector and the way data analysis is performed, I describe CUORE first results for the search of the 0νββ decay that were published in March 2018.
Published: 2019

33. Measurement of the γ∗γ∗ →η′ transition form factor

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, SW, Davis, CL, Denig, AG, Gradl, W, and Griessinger, K
Abstract: We study the process e+e-→e+e-η′ in the double-tag mode and measure for the first time the γ γ →η′ transition form factor Fη′(Q12,Q22) in the momentum-transfer range 2
Published: 2018

34. Study of the reactions e+e- →π+π-π0π0π0 and π+π-π0π0η at center-of-mass energies from threshold to 4.35 GeV using initial-state radiation STUDY of the REACTIONS ⋯ J. P. LEES et al.

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, Davis, CL, Denig, AG, Gradl, W, and Griessinger, K
Abstract: We study the processes e+e-→π+π-π0π0π0γ and π+π-π0π0ηγ in which an energetic photon is radiated from the initial state. The data are collected with the BABAR detector at SLAC. About 14 000 and 4700 events, respectively, are selected from a data sample corresponding to an integrated luminosity of 469 fb-1. The invariant mass of the hadronic final state defines the effective e+e- center-of-mass energy. From the mass spectra, the first precise measurement of the e+e-→π+π-π0π0π0 cross section and the first measurement ever of the e+e-→π+π-π0π0η cross section are performed. The center-of-mass energies range from threshold to 4.35 GeV. The systematic uncertainty is typically between 10% and 13%. The contributions from ωπ0π0, ηπ+π-, and other intermediate states are presented. We observe the J/ψ and ψ(2S) in most of these final states and measure the corresponding branching fractions, many of them for the first time.
Published: 2018

35. Search for the decay mode B0 →pp p ̄ p ̄ SEARCH for the DECAY MODE ... J. P. LEES et al.

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, Davis, CL, Denig, AG, Gradl, W, and Griessinger, K
Abstract: A search is presented for the four-body decay B0→ppp̄p̄ in a sample of 471 million BB̄ pairs collected with the BABAR detector, operated at the SLAC PEP-II asymmetric-energy e+e- collider. The center-of-mass energy is 10.58 GeV. From a fit to the distribution of the energy-substituted mass mES, the branching fraction B(B0→ppp̄p̄)=(1.1±0.5±0.2)×10-7 is extracted, where the first uncertainty is statistical and the second is systematic. The significance of the signal, including the systematic uncertainty, is 2.9 standard deviations. The upper limit on the branching fraction is determined to be 2.0×10-7 at 90% confidence level.
Published: 2018

36. Measurement of the spectral function for the τ- →k-KSντ decay

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, Davis, CL, Denig, AG, Gradl, W, and Griessinger, K
Abstract: The decay τ-→K-KSντ has been studied using 430×106 e+e-→τ+τ- events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and studied with the BABAR detector. The mass spectrum of the K-KS system has been measured and the spectral function has been obtained. The measured branching fraction B(τ-→K-KSντ)=(0.739±0.011(stat)±0.020(syst))×10-3 is found to be in agreement with earlier measurements.
Published: 2018

37. The CUORE and CUORE-0 experiments at LNGS

Author: Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'oro, S, Deninno, MM, Di Domizio, S, Di Vacri, ML, Dompè, V, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, HZ, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Reindl, F, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, Schmidt, J, and Scielzo, ND
Subjects: Atomic, Molecular, Nuclear, Particle and Plasma Physics, Condensed Matter Physics, Other Physical Sciences
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay that has been able to reach the 1-ton scale. The detector consists of an array of 988 TeO2 crystals arranged in a cylindrical compact structure of 19 towers. The construction of the experiment and, in particular, the installation of all towers in the cryostat was completed in August 2016 and commissioning started in fall 2016. The experiment has completed the pre-operation phase and is currently in data taking. We present here the achievements of CUORE during the commissioning phase and the limit on the 130Te half-life for the neutrinoless double beta decay that has been released after the first 3 weeks of collected data. Physics results from CUORE-0 will also be updated.
Published: 2018

38. Study of (1S) radiative decays to γπ+π- and γk+K-

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Giannuzzi, F, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kozyrev, EA, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Li, Y, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, Davis, CL, Denig, AG, and Gradl, W
Abstract: We study the (1S) radiative decays to γπ+π- and γK+K- using data recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e+e- collider at center-of-mass energies at the (2S) and (3S) resonances. The (1S) resonance is reconstructed from the decay (nS)→π+π-(1S), n=2, 3. Branching fraction measurements and spin-parity analyses of (1S) radiative decays are reported for the I=0 S-wave and f2(1270) resonances in the π+π- mass spectrum, the f2′(1525) and f0(1500) in the K+K- mass spectrum, and the f0(1710) in both.
Published: 2018

39. Search for neutrinoless β+ EC decay of Te 120 with CUORE-0

Author: Alduino, C, Alfonso, K, Artusa, DR, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Di Domizio, S, Di Vacri, ML, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, HZ, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Mosteiro, PJ, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, Schmidt, J, Scielzo, ND, and Singh, V
Subjects: nucl-ex
Abstract: We have performed a search for neutrinoless β+EC decay of Te120 using the final CUORE-0 data release. We describe a new analysis method for the simultaneous fit of signatures with different event topology, and of data subsets with different signal efficiency, obtaining a limit on the half-life of the decay of T1/2>1.6×1021 yr at 90% credibility interval (CI). Combining this with results from Cuoricino, a predecessor experiment, we obtain the strongest limit to date, corresponding to T1/2>2.7×1021 yr at 90% CI.
Published: 2018

40. Study of rare nuclear processes with CUORE

Author: Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Di Domizio, S, Di Vacri, ML, Dompe, V, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, HZ, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Reindl, F, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, Schmidt, J, and Scielzo, ND
Subjects: nucl-ex, physics.ins-det, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: TeO2 bolometers have been used for many years to search for neutrinoless double beta decay in 130Te. CUORE, a tonne-scale TeO2 detector array, recently published the most sensitive limit on the half-life, > 1.5 × 1025 yr, which corresponds to an upper bound of 140-400 meV on the effective Majorana mass of the neutrino. While it makes CUORE a world-leading experiment looking for neutrinoless double beta decay, it is not the only study that CUORE will contribute to in the field of nuclear and particle physics. As already done over the years with many small-scale experiments, CUORE will investigate both rare decays (such as the two-neutrino double beta decay of 130Te and the hypothesized electron capture in 123Te), and rare processes (e.g. dark matter and axion interactions). This paper describes some of the achievements of past experiments that used TeO2 bolometers, and perspectives for CUORE.
Published: 2018

41. Results from the CUORE experiment

Author: Marini, L, Adams, DQ, Alduino, C, Alfonso, K, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Caminata, A, Campani, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D’Addabbo, A, D’Aguanno, D, Dafinei, I, Davis, CJ, Dell’Oro, S, Deninno, MM, Di Domizio, S, Dompè, V, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, RG, Huang, HZ, Johnston, J, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Ma, YG, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, Nutini, I, O’Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Puiu, A, Reindl, F, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, and Schmidt, B
Subjects: Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Nuclear and plasma physics, Particle and high energy physics
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment operated at about 10 mK reaching the ton-scale. CUORE main goal is the search for neutrinoless double beta decay in 130Te, while it is suitable also for other kinds of rare event searches, such as dark matter and axions. The detector is situated at Laboratori Nazionali del Gran Sasso (LNGS), Italy, and consists in an array of 988 TeO2 crystals, being both the detector and the source of the decay. Since the beginning of 2017, CUORE operations had both phases for physics data taking and campaigns of detector optimization to obtain the maximum from its potential. Here we briefly discuss one of the procedures for the optimization of the detector regarding noise reduction and report the achievements of CUORE concerning energy resolution and background in the region of interest after the first few months of data taking. Finally we conclude by examining the results from our first neutrinoless double beta decay analysis published at the beginning of 2018, which with a total TeO2 exposure of 86.3 kg·y allowed to place a lower limit on the decay half-life of T1/20ν(130Te) > 1.3 ×1025 yr (90% C.L.) .
Published: 2018

42. The CUORE bolometric detector for neutrinoless double beta decay searches

Author: Cassina, L, Alduino, C, Alfonso, K, Artusa, DR, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D’Addabbo, A, D’Aguanno, D, Dafinei, I, Davis, CJ, Dell’Oro, S, Deninno, MM, Di Domizio, S, Di Vacri, ML, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, HZ, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Ma, YG, Maino, M, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Mosteiro, PJ, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, O’Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, Schmidt, J, and Scielzo, ND
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment reaching the 1-ton scale. The detector consists of an array of 988 TeO2 crystals arranged in 19 towers. The construction of the experiment and the installation of the detector was completed in August 2016. In this paper, the technical challenges of the construction, the design choices and measured performance of the electronic instrumentation are presented.
Published: 2018

43. Radon mitigation during the installation of the CUORE 0νββ decay detector

Author: Benato, G, Biare, D, Bucci, C, Paolo, LD, Drobizhev, A, Kadel, RW, Kolomensky, YG, Schreiner, J, Singh, V, Sipla, T, Wallig, J, and Zimmermann, S
Subjects: Gas systems and purification, Radiation monitoring, physics.ins-det, nucl-ex, Nuclear & Particles Physics, Other Physical Sciences, Physical Sciences, Engineering
Abstract: CUORE - the Cryogenic Underground Observatory for Rare Events - is an experiment searching for the neutrinoless double-beta (0νββ) decay of 130Te with an array of 988 TeO2 crystals operated as bolometers at ∼10 mK in a large dilution refrigerator. With this detector, we aim for a 130Te 0νββ decay half-life sensitivity of 9×1025 y with 5 y of live time, and a background index of 10-2 counts/keV/kg/y. Making an effort to maintain radiopurity by minimizing the bolometers' exposure to radon gas during their installation in the cryostat, we perform all operations inside a dedicated cleanroom environment with a controlled radon-reduced atmosphere. In this paper, we discuss the design and performance of the CUORE Radon Abatement System and cleanroom, as well as a system to monitor the radon level in real time.
Published: 2018

44. The CUORE and CUORE-0 experiments at LNGS

Author: D'Addabbo, A, Alduino, C, Alfonso, K, Artusa, DR, Avignone, FT, Azzolini, O, Banks, TI, Bari, G, Beeman, JW, Bellini, F, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, 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, RJ, Cushman, JS, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Di Domizio, S, Di Vacri, ML, Drobizhev, A, Fang, DQ, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Haller, EE, Han, K, Hansen, E, Heeger, KM, Hennings-Yeomans, R, Hickerson, KP, Huang, HZ, Kadel, R, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Liu, X, Ma, YG, Maino, M, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Mosteiro, PJ, Napolitano, T, Nones, C, Norman, EB, Nucciotti, A, O'Donnell, T, Orio, F, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, and Rosenfeld, C
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is a 1-ton scale bolometric experiment devoted to the search of the neutrinoless double-beta decay (0νββ) in 130Te. The CUORE detector consists of an array of 988 TeO2 crystals operated at 10 mK. CUORE-0 is the CUORE demonstrator: it has been built to test the performance of the upcoming CUORE experiment and represents the largest 130Te bolometric setup ever operated. CUORE-0 has been running at Laboratori Nazionali del Gran Sasso (Italy) from 2013 to 2015. The final CUORE-0 analysis on 0νββ and the corresponding detector performance are presented. The present status of the CUORE experiment, now in its final construction and commissioning phase, are discussed. The results from assembly of the detector and the commissioning of the cryostat are reported.
Published: 2017

45. Low energy analysis techniques for CUORE

Author: Alduino, C, Alfonso, K, Artusa, DR, Avignone, FT, Azzolini, O, Bari, G, Beeman, JW, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D’Addabbo, A, D’Aguanno, D, Dafinei, I, Davis, CJ, Dell’Oro, S, Deninno, MM, Di Domizio, S, Di Vacri, ML, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Haller, EE, Han, K, Hansen, E, Heeger, KM, Hennings-Yeomans, R, Huang, HZ, Kadel, R, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Ma, YG, Maino, M, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Mosteiro, PJ, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, O’Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Piperno, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sakai, M, and Sangiorgio, S
Subjects: physics.ins-det, nucl-ex, Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: CUORE is a tonne-scale cryogenic detector operating at the Laboratori Nazionali del Gran Sasso (LNGS) that uses tellurium dioxide bolometers to search for neutrinoless double-beta decay of 130Te. CUORE is also suitable to search for low energy rare events such as solar axions or WIMP scattering, thanks to its ultra-low background and large target mass. However, to conduct such sensitive searches requires improving the energy threshold to 10 keV. In this paper, we describe the analysis techniques developed for the low energy analysis of CUORE-like detectors, using the data acquired from November 2013 to March 2015 by CUORE-0, a single-tower prototype designed to validate the assembly procedure and new cleaning techniques of CUORE. We explain the energy threshold optimization, continuous monitoring of the trigger efficiency, data and event selection, and energy calibration at low energies in detail. We also present the low energy background spectrum of CUORE-0 below 60keV. Finally, we report the sensitivity of CUORE to WIMP annual modulation using the CUORE-0 energy threshold and background, as well as an estimate of the uncertainty on the nuclear quenching factor from nuclear recoils inCUORE-0.
Published: 2017

46. Measurement of the e+e-→π+π-π0π0 cross section using initial-state radiation at BABAR

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Fritsch, M, Koch, H, Schroeder, T, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Gary, JW, Long, O, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Kim, J, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Smith, JG, Wagner, SR, Bernard, D, Verderi, M, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rotondo, M, Zallo, A, Passaggio, S, Patrignani, C, Lacker, HM, Bhuyan, B, Mallik, U, Chen, C, Cochran, J, Prell, S, Ahmed, H, Gritsan, AV, Arnaud, N, Davier, M, Le Diberder, F, Lutz, AM, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Banerjee, S, Davis, CL, Denig, AG, Gradl, W, Griessinger, K, and Hafner, A
Abstract: The process e+e-→π+π-2π0γ is investigated by means of the initial-state radiation technique, where a photon is emitted from the incoming electron or positron. Using 454.3 fb-1 of data collected around a center-of-mass energy of s=10.58 GeV by the BABAR experiment at SLAC, approximately 150000 signal events are obtained. The corresponding nonradiative cross section is measured with a relative uncertainty of 3.6% in the energy region around 1.5 GeV, surpassing all existing measurements in precision. Using this new result, the channel's contribution to the leading order hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon is calculated as (gμπ+π-2π0-2)/2=(17.9±0.1stat±0.6syst)×10-10 in the energy range 0.85 GeV
Published: 2017

47. Results from CUORE and CUORE-0

Author: Moggi, N, Alduino, C, Alfonso, K, Artusa, DR, Avignone, FT, Azzolini, O, Bari, G, Bellini, F, Benato, G, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Copello, S, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, D'Aguanno, D, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Di Domizio, S, Di Vacri, ML, Drobizhev, A, Fang, DQ, Faverzani, M, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Han, K, Heeger, KM, Hennings-Yeomans, R, Huang, HZ, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Ma, YG, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Morganti, S, Mosteiro, PJ, Nagorny, SS, Napolitano, T, Nastasi, M, Nones, C, Norman, EB, Novati, V, Nucciotti, A, O'Donnell, T, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pira, C, Pirro, S, Pozzi, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sakai, M, Sangiorgio, S, Santone, D, Schmidt, B, Schmidt, J, Scielzo, ND, and Singh, V
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay that has been able to reach the 1-ton scale. The detector consists of an array of 988 TeO2 crystals arranged in a cylindrical compact structure of 19 towers. The construction of the experiment and the installation of all towers in the cryostat was completed in August 2016: the experiment is now in data taking phase. In this talk, beyond updating the physics results from CUORE-0, we will discuss the achievements and technical challenges of the CUORE construction phase, with particular emphasis on the background reduction strategy, the performance of the detector during pre-operation and the projected first results from the full detector run.
Published: 2017

48. Evidence for CP violation in B+ →k∗ (892)+π0 from a Dalitz plot analysis of B+ → KS0 π+π0 decays

Author: Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Stugu, B, Brown, DN, Kerth, LT, Kolomensky, YG, Lee, MJ, Lynch, G, Koch, H, Schroeder, T, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Khan, A, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, YI, Solodov, EP, Todyshev, KY, Lankford, AJ, Dey, B, Gary, JW, Long, O, Franco Sevilla, M, Hong, TM, Kovalskyi, D, Richman, JD, West, CA, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Schumm, BA, Seiden, A, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Andreassen, R, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Bloom, PC, Ford, WT, Gaz, A, Smith, JG, Wagner, SR, Ayad, R, Toki, WH, Spaan, B, Bernard, D, Verderi, M, Playfer, S, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Piemontese, L, Santoro, V, Calcaterra, A, De Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rama, M, Zallo, A, Contri, R, Monge, MR, Passaggio, S, Patrignani, C, Bhuyan, B, Prasad, V, Adametz, A, Uwer, U, Lacker, HM, Mallik, U, Chen, C, Cochran, J, and Prell, S
Abstract: We report a Dalitz plot analysis of charmless hadronic decays of charged B mesons to the final state KS0π+π0 using the full BABAR data set of 470.9±2.8 million BB events collected at the ϒ(4S) resonance. We measure the overall branching fraction and CP asymmetry to be B(B+→K0π+π0)=(31.8±1.8±2.1-0.0+6.0)×10-6 and ACP(B+→K0π+π0)=0.07±0.05±0.03-0.03+0.02, where the uncertainties are statistical, systematic, and due to the signal model, respectively. This is the first measurement of the branching fraction for B+→K0π+π0. We find first evidence of a CP asymmetry in B+→K∗(892)+π0 decays: ACP(B+→K∗(892)+π0)=-0.52±0.14±0.04-0.02+0.04. The significance of this asymmetry, including systematic and model uncertainties, is 3.4 standard deviations. We also measure the branching fractions and CP asymmetries for three other intermediate decay modes.
Published: 2017

49. Lowering the CUORE energy threshold

Author: Copello, S, Alduino, C, Alfonso, K, Artusa, DR, Avignone, FT, Azzolini, O, Banks, TI, Bari, G, Beeman, JW, Bellini, F, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Canonica, L, Cao, XG, Capelli, S, Cappelli, L, Carbone, L, Cardani, L, Carniti, P, Casali, N, Cassina, L, Chiesa, D, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, RJ, Cushman, JS, D'Addabbo, A, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Di Domizio, S, Di Vacri, ML, Drobizhev, A, Fang, DQ, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Haller, EE, Han, K, Hansen, E, Heeger, KM, Hennings-Yeomans, R, Hickerson, KP, Huang, HZ, Kadel, R, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Liu, X, Ma, YG, Maino, M, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Mosteiro, PJ, Napolitano, T, Nones, C, Norman, EB, Nucciotti, A, O'Donnell, T, Orio, F, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pira, CC, Pirro, S, Pozzi, S, Previtali, E, and Rosenfeld, C
Subjects: Atomic, Molecular, Nuclear, Particle and Plasma Physics, Condensed Matter Physics, Other Physical Sciences
Abstract: The Cryogenic Underground Observatory for Rare Events (CUORE) is a ton-scale double beta decay experiment based on TeO2 cryogenic bolometers and is currently in the last construction stage at the Gran Sasso National Laboratory (LNGS). Its primary goal is to observe neutrino-less double beta decay of 130Te, however thanks to the ultra-low background and large projected exposure it could also be suitable for other rare event searches, as the detection of solar axions, neutrinos from type II supernovae or direct detection of dark matter. The sensitivity for these searches will depend on the performance achieved at the low energy threshold. For this reason a trigger algorithm based on continuous data filtering has been developed which will allow lowering the threshold down to the few keV region. The new trigger has been tested in CUORE-0, a single-tower CUORE prototype consisting of 52 TeO2 bolometers and recently concluded, and here we present the results in terms of trigger efficiency, data selection and low-energy calibration.
Published: 2017

50. Status and prospects for CUORE

Author: Canonica, L, Alduino, C, Alfonso, K, Artusa, DR, Avignone, FT, Azzolini, O, Banks, TI, Bari, G, Beeman, JW, Bellini, F, Bersani, A, Biassoni, M, Branca, A, Brofferio, C, Bucci, C, Camacho, A, Caminata, A, Cao, XG, 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, RJ, Cushman, JS, D'Addabbo, A, Dafinei, I, Davis, CJ, Dell'Oro, S, Deninno, MM, Di Domizio, S, Di Vacri, ML, Drobizhev, A, Fang, DQ, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, MA, Freedman, SJ, Fujikawa, BK, Giachero, A, Gironi, L, Giuliani, A, Gladstone, L, Gorla, P, Gotti, C, Gutierrez, TD, Haller, EE, Han, K, Hansen, E, Heeger, KM, Hennings-Yeomans, R, Hickerson, KP, Huang, HZ, Kadel, R, Keppel, G, Kolomensky, YG, Leder, A, Ligi, C, Lim, KE, Liu, X, Ma, YG, Maino, M, Marini, L, Martinez, M, Maruyama, RH, Mei, Y, Moggi, N, Morganti, S, Mosteiro, PJ, Napolitano, T, Nones, C, Norman, EB, Novati, V, Nucciotti, A, O'Donnell, T, Orio, F, Ouellet, JL, Pagliarone, CE, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pessina, G, Pettinacci, V, Piperno, G, Pirro, S, Pozzi, S, Previtali, E, and Rosenfeld, C
Subjects: Atomic, Molecular, Nuclear, Particle and Plasma Physics, Condensed Matter Physics, Other Physical Sciences
Abstract: CUORE is a cryogenic detector consisting of 988 TeO2 crystals, 750 g each, and will be operated at a temperature of ∼10 mK, to search for neutrinoless double beta decay (0νββ) of 130Te. The detector, in the final stages of construction at the Laboratori Nazionali del Gran Sasso (Italy), will start its operations in 2016. CUORE-0, its pilot experiment, has proven the feasibility of CUORE, demonstrating that the target background of 0.01 counts/keV/kg/y and the energy resolution of 5 keV are within reach. CUORE-0 also made the most precise measurement of the 2νββ decay. The expected sensitivity of CUORE to the 0νββ 130Te half-life is 9 •1025y, for 5 years of data taking. Here, we report the most recent results of CUORE-0, their implications for CUORE, and the current status of the CUORE experiment.
Published: 2017

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