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51. Project 8 Phase III Design Concept.

Author

A Ashtari Esfahani, S Böser, C Claessens, L de Viveiros, P J Doe, S Doeleman, M Fertl, E C Finn, J A Formaggio, M Guigue, K M Heeger, A M Jones, K Kazkaz, B H LaRoque, E Machado, B Monreal, J A Nikkel, N S Oblath, R G H Robertson, and L J Rosenberg

Published
2017
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53. CUORE crystal validation runs: Results on radioactive contamination and extrapolation to CUORE background

Author

S. Newman, M. Carrettoni, L. Pattavina, M. Balata, S. Kraft, Ke Han, Reina H. Maruyama, C. Arnaboldi, Stuart J. Freedman, C. Salvioni, R. J. Creswick, F. Alessandria, M. I. Martínez, D. Lenz, Eric B. Norman, E. Longo, X. Z. Cai, N. Xu, G. Bari, A. Woodcraft, I. C. Bandac, M. Pavan, Kareem Kazkaz, D. Schaeffer, E. Fiorini, A. Giachero, F. Orio, C. Bucci, T. D. Gutierrez, Massimiliano Clemenza, B. S. Wang, Alan R. Smith, D. Q. Fang, V. Palmieri, Giorgio Frossati, Simone Capelli, C. Rusconi, C. Brofferio, H. Z. Huang, Silvio Morganti, D. Orlandi, S. Zucchelli, F. Rimondi, B. X. Zhu, G. Terenziani, C. Nones, A. Dally, Cristián Martínez, A. Bryant, Jeffrey W. Beeman, Ioan Dafinei, Oliviero Cremonesi, M. Biassoni, C. A. Whitten, Raffaele Ardito, Yu. G. Kolomensky, L. Gironi, Y. L. Li, K. M. Heeger, E. Previtali, L. Canonica, Giulio Maier, Claudia Tomei, F. T. Avignone, X. Liu, T. I. Banks, L. Foggetta, S. Trentalange, M. M. Deninno, V. Rampazzo, A. Bersani, A. de Waard, Nicholas Scielzo, N. Moggi, F. Bellini, Marco Pallavicini, N. Chott, R. W. Kadel, E. Andreotti, S. Di Domizio, G. Pessina, C. Zarra, Laura Cardani, Samuele Sangiorgio, Stefano Nisi, A. Nucciotti, L. Zanotti, W. D. Tian, M. Vignati, Marisa Pedretti, Larissa M. Ejzak, A. De Biasi, G. Ventura, H. A. Farach, Claudio Gotti, T. Bloxham, T. Wise, C. Maiano, L. Taffarello, H. W. Wang, C. Cosmelli, Yu-Gang Ma, C. Rosenfeld, P. Gorla, F. Ferroni, Emanuele Ferri, Eugene E. Haller, R. Faccini, L. Kogler, Koichi Ichimura, E. Guardincerri, M. P. Decowski, J. L. Ouellet, L. Carbone, F. Stivanello, S. Pirro, G. Keppel, Monica Sisti, A. Giuliani, Alessandria, F, Andreotti, E, Ardito, R, Arnaboldi, C, Avignone, F, Balata, M, Bandac, I, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Bloxham, T, Brofferio, C, Bryant, A, Bucci, C, Cai, X, Canonica, L, Capelli, S, Carbone, L, Cardani, L, Carrettoni, M, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, De Biasi, A, Decowski, M, Deninno, M, de Waard, A, Di Domizio, S, Ejzak, L, Faccini, R, Fang, D, Farach, H, Ferri, E, Ferroni, F, Fiorini, E, Foggetta, L, Freedman, S, Frossati, G, Giachero, A, Gironi, L, Giuliani, A, Gorla, P, Gotti, C, Guardincerri, E, Gutierrez, T, Haller, E, Han, K, Heeger, K, Huang, H, Ichimura, K, Kadel, R, Kazkaz, K, Keppel, G, Kogler, L, Kolomensky, Y, Kraft, S, Lenz, D, Li, Y, Liu, X, Longo, E, Ma, Y, Maiano, C, Maier, G, Martinez, C, Martinez, M, Maruyama, R, Moggi, N, Morganti, S, Newman, S, Nisi, S, Nones, C, Norman, E, Nucciotti, A, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pedretti, M, Pessina, G, Pirro, S, Previtali, E, Rampazzo, V, Rimondi, F, Rosenfeld, C, Rusconi, C, Salvioni, C, Sangiorgio, S, Schaeffer, D, Scielzo, N, Sisti, M, Smith, A, Stivanello, F, Taffarello, L, Terenziani, G, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Whitten, C, Wise, T, Woodcraft, A, Xu, N, Zanotti, L, Zarra, C, Zhu, B, Zucchelli, S, CSNSM PS2, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), IoP (FNWI), Gravitation and Astroparticle Physics Amsterdam, GRAPPA (ITFA, IoP, FNWI), Faculty of Science, Other Research IHEF (IoP, FNWI), F. Alessandria, E. Andreotti, R. Ardito, C. Arnaboldi, F.T. Avignone III, M. Balata, I. Bandac, T.I. Bank, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, T. Bloxham, C. Brofferio, A. Bryant, C. Bucci, X.Z. Cai, L. Canonica, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R.J. Creswick, I. Dafinei, A. Dally, A. De Biasi, M.P. Decowski, M.M. Deninno, A. de Waard, S. Di Domizio, L. Ejzak, R. Faccini, D.Q. Fang, H.A. Farach, E. Ferri, F. Ferroni, E. Fiorini, L. Foggetta, S.J. Freedman, G. Frossati, A. Giachero, L. Gironi, A. Giuliani, P. Gorla, C. Gotti, E. Guardincerri, T.D. Gutierrez, E.E. Haller, K. Han, K.M. Heeger, H.Z. Huang, K. Ichimura, R. Kadel, K. Kazkaz, G. Keppel, L. Kogler, Yu.G. Kolomensky, S. Kraft, D. Lenz, Y.L. Li, X. Liu, E. Longo, Y.G. Ma, C. Maiano, G. Maier, C. Martinez, M. Martinez, R.H. Maruyama, N. Moggi, S. Morganti, S. Newman, S. Nisi, C. None, E.B. Norman, A. Nucciotti, F. Orio, D. Orlandi, J.L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, S. Pirro, E. Previtali, V. Rampazzo, F. Rimondi, C. Rosenfeld, C. Rusconi, C. Salvioni, S. Sangiorgio, D. Schaeffer, N.D. Scielzo, M. Sisti, A.R. Smith, F. Stivanello, L. Taffarello, G. Terenziani, W.D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B.S. Wang, H.W. Wang, C.A. Whitten Jr., T. Wise, A. Woodcraft, N. Xu, L. Zanotti, C. Zarra, B.X. Zhu, and S. Zucchelli

Subjects
Extrapolation, FOS: Physical sciences, 01 natural sciences, Nuclear physics, CUORE, ESPERIMENTO CUORE, 0103 physical sciences, Radioactive contamination, radioactive contamination, tellurium dioxide, double beta decay, Quality monitoring, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclide, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Tellurium dioxide, Astronomy and Astrophysics, Radioactive contamination DETECTORS, Double beta decay, Chinese academy of sciences, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], LABORATORI NAZIONALI DEL GRAN SASSO, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
Abstract

The CUORE Crystal Validation Runs (CCVRs) have been carried out since the end of 2008 at the Gran Sasso National Laboratories, in order to test the performances and the radiopurity of the TeO$_2$ crystals produced at SICCAS (Shanghai Institute of Ceramics, Chinese Academy of Sciences) for the CUORE experiment. In this work the results of the first 5 validation runs are presented. Results have been obtained for bulk contaminations and surface contaminations from several nuclides. An extrapolation to the CUORE background has been performed., 11 pages, 8 figures

Published
2012

54. First data from CUORE-0

Author

Ettore Fiorini, Andrea Giachero, S. Di Domizio, Y. L. Li, W. D. Tian, L. Wielgus, M. L. Di Vacri, D. Orlandi, C. Zarra, M. Tenconi, S. Zucchelli, B. X. Zhu, X. Liu, N. Chott, Alan R. Smith, M. A. Franceschi, B. K. Fujikawa, V. Rampazzo, R. J. Creswick, F. Orio, C. Rusconi, C. Rosenfeld, Kareem Kazkaz, Davide Chiesa, Massimiliano Clemenza, Carlo Cosmelli, P. Gorla, F. Ferroni, C. Tomei, Emanuele Ferri, Eugene E. Haller, A. De Biasi, T. I. Banks, Oliviero Cremonesi, J. Goett, A. Giuliani, K. E. Lim, A. Camacho, B. S. Wang, L. Cardani, C. Pira, Jeffrey W. Beeman, G. Bari, S. Pirro, A. Dally, A.M. Vignati, V. Palmieri, O. Azzolini, Pedretti, Larissa M. Ejzak, S. Trentalange, C. Brofferio, C. Maiano, L. Gironi, F. T. Avignone, A. Bersani, D. Q. Fang, Ioan Dafinei, M. M. Deninno, James R. Wilson, Eric B. Norman, Silvio Morganti, T. Napolitano, L. Taffarello, Carlo Ligi, M. Carrettoni, M. Maino, Lucia Canonica, G. Keppel, Nicholas Scielzo, D. R. Artusa, M. I. Martínez, Monica Sisti, F. Bellini, H. W. Wang, M. Biassoni, Lindley Winslow, G. Ventura, T. O'Donnell, X. Z. Cai, Ezio Previtali, G. Piperno, Claudio Gotti, C. P. Aguirre, H. A. Farach, N. Casali, L. Zanotti, C. Bucci, T. D. Gutierrez, Vladimir Datskov, J. L. Ouellet, Yu-Gang Ma, Ke Han, Reina H. Maruyama, M. Pavan, Stuart J. Freedman, M. Balata, T. Wise, N. Moggi, Elena Sala, Y. Mei, L. Carbone, Simone Capelli, R. W. Kadel, C. Nones, R. Hennings-Yeomans, Xi-Guang Cao, Yu. G. Kolomensky, K. M. Heeger, A. Woodcraft, Samuele Sangiorgio, Stefano Nisi, F. Terranova, A. Nucciotti, M. Faverzani, Marco Pallavicini, G. Fernandes, G. Pessina, H. Z. Huang, L. Pattavina, A.M. Vignati, C.P. Aguirre, D.R. Artusa, F.T. Avignone III, O. Azzolini, M. Balata, T.I. Bank, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, C. Brofferio, C. Bucci, X.Z. Cai, A. Camacho, L. Canonica, X. Cao, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, D. Chiesa, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R.J. Creswick, I. Dafinei, A. Dally, V. Datskov, A. De Biasi, M.M. Deninno, S. Di Domizio, M.L. di Vacri, L. Ejzak, D.Q. Fang, H.A. Farach, M. Faverzani, G. Fernande, E. Ferri, F. Ferroni, E. Fiorini, M.A. Franceschi, S.J. Freedman, B.K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, J. Goett, P. Gorla, C. Gotti, T.D. Gutierrez, E.E. Haller, K. Han, K.M. Heeger, R. Hennings-Yeoman, H.Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, Yu.G. Kolomensky, Y.L. Li, C. Ligi, K.E. Lim, X. Liu, Y.G. Ma, C. Maiano, M. Maino, M. Martinez, R.H. Maruyama, Y. Mei, N. Moggi, S. Morganti, T. Napolitano, S. Nisi, C. None, E.B. Norman, A. Nucciotti, T. O’Donnell, F. Orio, D. Orlandi, J.L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, Pedretti, G. Pessina, G. Piperno, C. Pira, S. Pirro, E. Previtali, V. Rampazzo, C. Rosenfeld, C. Rusconi, E. Sala, S. Sangiorgio, N.D. Scielzo, M. Sisti, A.R. Smith, L. Taffarello, M. Tenconi, F. Terranova, W.D. Tian, C. Tomei, S. Trentalange, G. Ventura, B.S. Wang, H.W. Wang, L. Wielgu, J. Wilson, L.A. Winslow, T. Wise, A. Woodcraft, L. Zanotti, C. Zarra, B.X. Zhu, S. Zucchelli, Vignati, A, Aguirre, C, Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Cai, X, Camacho, A, Canonica, L, Cao, X, Capelli, S, Carbone, L, Cardani, L, Carrettoni, M, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, Datskov, V, De Biasi, A, Deninno, M, Di Domizio, S, Di Vacri, M, Ejzak, L, Fang, D, Farach, H, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Goett, J, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Heeger, K, Hennings Yeomans, R, Huang, H, Kadel, R, Kazkaz, K, Keppel, G, Kolomensky, Y, Li, Y, Ligi, C, Lim, K, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Nisi, S, Nones, C, Norman, E, Nucciotti, A, O'Donnell, T, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pedretti, N, Pessina, G, Piperno, G, Pira, C, Pirro, S, Previtali, E, Rampazzo, V, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Scielzo, N, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Wang, B, Wang, H, Wielgus, L, Wilson, J, Winslow, L, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhu, B, and Zucchelli, S

Subjects
Physics, CUORE, bolometer, BOLOMETERS, Bolometer, Detector, half live, double beta decay, Physics and Astronomy(all), law.invention, Nuclear physics, neutrino, FIS/01 - FISICA SPERIMENTALE, law, Double beta decay, radioactivity, Sensitivity (control systems), Neutrino
Abstract

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

Published
2015

55. Initial performance of the CUORE-0 experiment

Author

Artusa, D. R., Avignone Iii, F. T., Avignone, F. T., Azzolini, O., Balata, M., Banks, T. I., Bari, G., Beeman, J., Bellini, Fabio, Bersani, A., Biassoni, M., Brofferio, C., Bucci, C., Cai, X. Z., Canonica, L., Cao, X. G., Capelli, S., Carbone, L., Cardani, Laura, Carrettoni, M., Casali, N., Chiesa, D., Chott, N., Clemenza, M., Cosmelli, Carlo, Cremonesi, O., Creswick, R. J., Dafinei, Ioan, Dally, A., Datskov, V., Deninno, M. M., Di Domizio, S., Di Vacri, M. L., Ejzak, L., Fang, D. Q., Farach, H. A., Faverzani, M., Fernandes, G., Ferri, E., Ferroni, Fernando, Fiorini, E., Freedman, S. J., Fujikawa, B. K., Giachero, A., Gironi, L., Giuliani, A., Goett, J., Gorla, P., Gotti, C., Gutierrez, T. D., Haller, E. E., Han, K., Heeger, K. M., Hennings Yeomans, R., Huang, H. Z., Kadel, R., Kazkaz, K., Keppel, G., Kolomensky Yu, G., Kolomensky, Yu G., Y. L., Li, Lim, K. E., Liu, X., Y. G., Ma, Maiano, C., Maino, M., Martinez, M., Maruyama, R. H., Mei, Y., Moggi, N., Morganti, S., Nisi, S., Nones, C., Norman, E. B., Nucciotti, A., O'Donnell, T., Orio, Filippo, Orlandi, D., Ouellet, J. L., Pallavicini, M., Palmieri, V., Pattavina, L., Pavan, M., Pedretti, M., Pessina, G., Pettinacci, Valerio, Piperno, Gabriele, Pirro, S., Previtali, E., Rosenfeld, C., Rusconi, C., Sala, E., Sangiorgio, S., Scielzo, N. D., Sisti, M., Smith, A. R., Taffarello, L., Tenconi, M., Terranova, F., Tian, W. D., Tomei, C., Trentalange, S., Ventura, G., Vignati, Marco, Wang, B. S., Wang, H. W., Wielgus, L., Wilson, J., Winslow, L. A., Wise, T., Zanotti, L., Zarra, C., Zhu, B. X., Zucchelli, S., CSNSM PS1, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Brofferio, C, Bucci, C, Cai, X, Canonica, L, Cao, X, Capelli, S, Carbone, L, Cardani, L, Carrettoni, M, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, Datskov, V, Deninno, M, Di Domizio, S, di Vacri, M, Ejzak, L, Fang, D, Farach, H, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Goett, J, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Heeger, K, Hennings Yeomans, R, Huang, H, Kadel, R, Kazkaz, K, Keppel, G, Kolomensky, Y, Li, Y, Lim, K, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Nisi, S, Nones, C, Norman, E, Nucciotti, A, O’Donnell, T, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pedretti, M, Pessina, G, Pettinacci, V, Piperno, G, Pirro, S, Previtali, E, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Scielzo, N, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Wielgus, L, Wilson, J, Winslow, L, Wise, T, Zanotti, L, Zarra, C, Zhu, B, Zucchelli, S, D. R. Artusa, F. T. Avignone, O. Azzolini, M. Balata, T. I. Bank, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, C. Brofferio, C. Bucci, X. Z. Cai, L. Canonica, X. G. Cao, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, D. Chiesa, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R. J. Creswick, I. Dafinei, A. Dally, V. Datskov, M. M. Deninno, S. Di Domizio, M. L. di Vacri, L. Ejzak, D. Q. Fang, H. A. Farach, M. Faverzani, G. Fernande, E. Ferri, F. Ferroni, E. Fiorini, S. J. Freedman, B. K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, J. Goett, P. Gorla, C. Gotti, T. D. Gutierrez, E. E. Haller, K. Han, K. M. Heeger, R. Hennings-Yeoman, H. Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, Yu. G. Kolomensky, Y. L. Li, K. E. Lim, X. Liu, Y. G. Ma, C. Maiano, M. Maino, M. Martinez, R. H. Maruyama, Y. Mei, N. Moggi, S. Morganti, S. Nisi, C. None, E. B. Norman, A. Nucciotti, T. O’Donnell, F. Orio, D. Orlandi, J. L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, V. Pettinacci, G. Piperno, S. Pirro, E. Previtali, C. Rosenfeld, C. Rusconi, E. Sala, S. Sangiorgio, N. D. Scielzo, M. Sisti, A. R. Smith, L. Taffarello, M. Tenconi, F. Terranova, W. D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B. S. Wang, H. W. Wang, L. Wielgu, J. Wilson, L. A. Winslow, T. Wise, L. Zanotti, C. Zarra, B. X. Zhu, and S. Zucchelli

Subjects
Physics - Instrumentation and Detectors, Physics and Astronomy (miscellaneous), Experimental Physics, energy resolution, sensitivity, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Upper and lower bounds, CUORE-0 experiment, neutrinoless double-beta decay, cryogenic detectors, tellurium dioxide bolometers, background analysis, law.invention, High Energy Physics - Experiment, helium: background, Nuclear physics, chemistry.chemical_compound, High Energy Physics - Experiment (hep-ex), contamination, CUORE, bolometer, law, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), 010306 general physics, Engineering (miscellaneous), Nuclear Experiment, Physics, 010308 nuclear & particles physics, Bolometer, Resolution (electron density), Detector, Instrumentation and Detectors (physics.ins-det), CUORICINO, 3. Good health, Full width at half maximum, chemistry, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics Experiment, Instrumentation and Detectors, Tellurium dioxide, Energy (signal processing), performance
Abstract

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

Published
2014

56. First CUORE-0 Performance Results and Status of CUORE Experiment

Author

L. Gironi, F. T. Avignone, S. Di Domizio, D. Lenz, C. Zarra, M. Tenconi, A. Woodcraft, Marisa Pedretti, B. K. Fujikawa, Eric B. Norman, N. Chott, A. De Biasi, M. Vignati, G. Bari, H. Z. Huang, M. Maino, F. Terranova, X. Z. Cai, M. Faverzani, R. J. Creswick, Kareem Kazkaz, C. Bucci, N. Casali, S. Newman, H. W. Wang, T. D. Gutierrez, L. Kogler, Yu. G. Kolomensky, Massimiliano Clemenza, Carlo Cosmelli, L. Wielgus, C. Pira, Elena Sala, Y. Mei, Xi-Guang Cao, K. M. Heeger, A. Bersani, T. I. Banks, Deqing Fang, C. Rusconi, C. Brofferio, N. Moggi, G. Ventura, Ioan Dafinei, M. Carrettoni, S. Zucchelli, M. M. Deninno, C. Maiano, F. Rimondi, Samuele Sangiorgio, Stefano Nisi, A. Nucciotti, B. X. Zhu, M. I. Martínez, L. Pattavina, L. Cardani, Ke Han, Reina H. Maruyama, M. Balata, Lucia Canonica, Carlo Ligi, F. Bellini, Stefano Pirro, C. Rosenfeld, P. Gorla, F. Ferroni, Simone Capelli, H. A. Farach, D. Orlandi, C. Tomei, R. W. Kadel, Larissa M. Ejzak, Davide Chiesa, Alan R. Smith, X. Liu, Emanuele Ferri, Eugene E. Haller, L. Zanotti, Jeffrey W. Beeman, M. A. Franceschi, V. Rampazzo, F. Orio, A. Camacho, T. O'Donnell, Ettore Fiorini, Andrea Giachero, Claudio Gotti, T. Bloxham, W. D. Tian, M. Pavan, Vladimir Datskov, A. Dally, B. S. Wang, M. L. Di Vacri, Yu-Gang Ma, Ezio Previtali, T. Wise, G. Piperno, L. Taffarello, O. Azzolini, John Wilson, V. Palmieri, Silvio Morganti, T. Napolitano, J. L. Ouellet, M. Biassoni, S. Trentalange, Yong-Ping Li, R. Faccini, L. Carbone, C. Nones, Oliviero Cremonesi, J. Goett, Nicholas Scielzo, Marco Pallavicini, G. Fernandes, G. Pessina, S. J. Freedman, A. Giuliani, G. Keppel, D. R. Artusa, Monica Sisti, L. Canonica, D. R. Artusa, F. T. Avignone, O. Azzolini, M. Balata, T. I. Bank, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, T. Bloxham, C. Brofferio, C. Bucci, X. Z. Cai, A. Camacho, X. Cao, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, D. Chiesa, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R. J. Creswick, I. Dafinei, A. Dally, V. Datskov, A. Biasi, M. M. Deninno, S. Domizio, M. L. Vacri, L. Ejzak, R. Faccini, D. Q. Fang, H. A. Farach, M. Faverzani, G. Fernande, E. Ferri, F. Ferroni, E. Fiorini, M. A. Franceschi, S. J. Freedman, B. K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, J. Goett, P. Gorla, C. Gotti, T. D. Gutierrez, E. E. Haller, K. Han, K. M. Heeger, H. Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, L. Kogler, Yu. G. Kolomensky, D. Lenz, Y. L. Li, C. Ligi, X. Liu, Y. G. Ma, C. Maiano, M. Maino, M. Martinez, R. H. Maruyama, Y. Mei, N. Moggi, S. Morganti, T. Napolitano, S. Newman, S. Nisi, C. None, E. B. Norman, A. Nucciotti, T. O’Donnell, F. Orio, D. Orlandi, J. L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, G. Piperno, C. Pira, S. Pirro, E. Previtali, V. Rampazzo, F. Rimondi, C. Rosenfeld, C. Rusconi, E. Sala, S. Sangiorgio, N. D. Scielzo, M. Sisti, A. R. Smith, L. Taffarello, M. Tenconi, F. Terranova, W. D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B. S. Wang, H. W. Wang, L. Wielgu, J. Wilson, T. Wise, A. Woodcraft, L. Zanotti, C. Zarra, B. X. Zhu, S. Zucchelli, Canonica, L, Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Bloxham, T, Brofferio, C, Bucci, C, Cai, X, Camacho, A, Cao, X, Capelli, S, Carbone, L, Cardani, L, Carrettoni, M, Casali, N, Chiesa, D, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, Datskov, V, Biasi, A, Deninno, M, Domizio, S, Vacri, M, Ejzak, L, Faccini, R, Fang, D, Farach, H, Faverzani, M, Fernandes, G, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Goett, J, Gorla, P, Gotti, C, Gutierrez, T, Haller, E, Han, K, Heeger, K, Huang, H, Kadel, R, Kazkaz, K, Keppel, G, Kogler, L, Kolomensky, Y, Lenz, D, Li, Y, Ligi, C, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Newman, S, Nisi, S, Nones, C, Norman, E, Nucciotti, A, O’Donnell, T, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pedretti, M, Pessina, G, Piperno, G, Pira, C, Pirro, S, Previtali, E, Rampazzo, V, Rimondi, F, Rosenfeld, C, Rusconi, C, Sala, E, Sangiorgio, S, Scielzo, N, Sisti, M, Smith, A, Taffarello, L, Tenconi, M, Terranova, F, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Wielgus, L, Wilson, J, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhu, B, Zucchelli, S, CSNSM PS1, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Particle physics, Bolometer, 7. Clean energy, 01 natural sciences, VALIDATION, law.invention, Nuclear physics, CUORE, Neutrino mass, law, Observatory, Double beta decay, Atomic and Molecular Physics, majorana particle, bolometer, neutrino mass, neutrinoless double beta decay, 0103 physical sciences, Neutrinoless double beta decay Neutrino mass Majorana particle Bolometer CONTAMINATION, General Materials Science, Neutrinoless double beta decay, 010306 general physics, Physics, Neutrinoless Double Beta Decay, Cuore, Neutrino Mass, Bolometers, Majorana particle, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Materials Science (all), 010308 nuclear & particles physics, Performance results, MAJORANA, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], DOUBLE-BETA DECAY, Neutrino, and Optics, NEUTRINO, National laboratory
Abstract

The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay in {Mathematical expression}Te. Observation of the process would unambiguously establish that neutrinos are Majorana particles as well as provide information about the absolute neutrino mass scale and mass hierarchy.The CUORE setup will consist of an array of 988 tellurium dioxide crystals (containing 206 kg of {Mathematical expression}Te in total), operated as bolometers at a temperature of {Mathematical expression}10 mK. The experiment is now under construction at the Gran Sasso National Laboratory in Italy. As a first step towards CUORE, a tower (CUORE-0) has been assembled and is taking data. Here a detailed description of the CUORE-0 tower and its performance is reported. The status of the CUORE experiment and its expected sensitivity will then be discussed. © 2014 Springer Science+Business Media New York.

Published
2014

57. The low energy spectrum of TeO2 bolometers: results and dark matter perspectives for the CUORE-0 and CUORE experiments

Author

V. Palmieri, F. Orio, K. M. Heeger, Kareem Kazkaz, B. X. Zhu, Eric B. Norman, Silvio Morganti, C. Maiano, Ettore Fiorini, T. Napolitano, B. S. Wang, T. I. Banks, L. Gironi, H. Z. Huang, O. Azzolini, C. Rosenfeld, C. Nones, Massimiliano Clemenza, Carlo Cosmelli, S. Zucchelli, D. Orlandi, P. Gorla, F. Ferroni, F. Rimondi, F. T. Avignone, Emanuele Ferri, W. D. Tian, Eugene E. Haller, M. P. Decowski, A. Bersani, M. Biassoni, M. L. Di Vacri, L. Kogler, M. A. Franceschi, R. Faccini, M. Maino, Claudio Gotti, T. Bloxham, Alan R. Smith, G. Bari, H. W. Wang, C. Brofferio, C. Bucci, T. D. Gutierrez, N. Chott, F. Alessandria, Oliviero Cremonesi, J. Goett, J. L. Ouellet, M. I. Martínez, M. Tenconi, S. Di Domizio, Larissa M. Ejzak, T. Wise, A. Dally, Marco Pallavicini, A. Giachero, C. Zarra, G. Pessina, X. Liu, Nicholas Scielzo, S. Newman, C. A. Whitten, M. Balata, F. Stivanello, L. Taffarello, V. Rampazzo, B. K. Fujikawa, L. Zanotti, N. Casali, L. Pattavina, Jeffrey W. Beeman, M. M. Deninno, N. Moggi, H. A. Farach, Lucia Canonica, Raffaele Ardito, Samuele Sangiorgio, Stefano Nisi, A. Nucciotti, F. Bellini, Ezio Previtali, M. Vignati, L. Carbone, Ioan Dafinei, R. J. Creswick, G. Ventura, Simone Capelli, R. W. Kadel, Yu. G. Kolomensky, Yong-Ping Li, Marisa Pedretti, G. Keppel, A. Woodcraft, M. Carrettoni, Ke Han, Reina H. Maruyama, Stuart J. Freedman, C. Rusconi, D. Lenz, Carlo Ligi, L. Cardani, Stefano Pirro, Vladimir Datskov, Yu-Gang Ma, A. De Biasi, Deqing Fang, X. Z. Cai, E. Guardincerri, A. Giuliani, S. Trentalange, M. Pavan, Claudia Tomei, D. R. Artusa, Monica Sisti, Alessandria, F, Ardito, R, Artusa, D, Avignone, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Bloxham, T, Brofferio, C, Bucci, C, Cai, X, Canonica, L, Capelli, S, Carbone, L, Cardani, L, Carrettoni, M, Casali, N, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, Datskov, V, Biasi, A, Decowski, M, Deninno, M, Domizio, S, Vacri, M, Ejzak, L, Faccini, R, Fang, D, Farach, H, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Goett, J, Gorla, P, Gotti, C, Guardincerri, E, Gutierrez, T, Haller, E, Han, K, Heeger, K, Huang, H, Kadel, R, Kazkaz, K, Keppel, G, Kogler, L, Kolomensky, Y, Lenz, D, Li, Y, Ligi, C, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Moggi, N, Morganti, S, Napolitano, T, Newman, S, Nisi, S, Nones, C, Norman, E, Nucciotti, A, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pedretti, M, Pessina, G, Pirro, S, Previtali, E, Rampazzo, V, Rimondi, F, Rosenfeld, C, Rusconi, C, Sangiorgio, S, Scielzo, N, Sisti, M, Smith, A, Stivanello, F, Taffarello, L, Tenconi, M, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Whitten, C, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhu, B, Zucchelli, S, F Alessandria, R Ardito, D.R Artusa, F.T Avignone, O Azzolini, M Balata, T.I Bank, G Bari, J Beeman, F Bellini, A Bersani, M Biassoni, T Bloxham, C Brofferio, C Bucci, X.Z Cai, L Canonica, S Capelli, L Carbone, L Cardani, M Carrettoni, N Casali, N Chott, M Clemenza, C Cosmelli, O Cremonesi, R.J Creswick, I Dafinei, A Dally, V Datskov, A. De Biasi, M.P Decowski, M.M Deninno, S. Di Domizio, M.L. di Vacri, L Ejzak, R Faccini, D.Q Fang, H.A Farach, E Ferri, F Ferroni, E Fiorini, M.A Franceschi, S.J Freedman, B.K Fujikawa, A Giachero, L Gironi, A Giuliani, J Goett, P Gorla, C Gotti, E Guardincerri, T.D Gutierrez, E.E Haller, K Han, K.M Heeger, H.Z Huang, R Kadel, K Kazkaz, G Keppel, L Kogler, Yu. G Kolomensky, D Lenz, Y.L Li, C Ligi, X Liu, Y.G Ma, C Maiano, M Maino, M Martinez, R.H Maruyama, N Moggi, S Morganti, T Napolitano, S Newman, S Nisi, C None, E.B Norman, A Nucciotti, F Orio, D Orlandi, J.L Ouellet, M Pallavicini, V Palmieri, L Pattavina, M Pavan, M Pedretti, G Pessina, S Pirro, E Previtali, V Rampazzo, F Rimondi, C Rosenfeld, C Rusconi, S Sangiorgio, N.D Scielzo, M Sisti, A.R Smith, F Stivanello, L Taffarello, M Tenconi, W.D Tian, C Tomei, S Trentalange, G Ventura, M Vignati, B.S Wang, H.W Wang, C.A Whitten, T Wise, A Woodcraft, L Zanotti, C Zarra, B.X Zhu, S Zucchelli, CSNSM PS1, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), GRAPPA (ITFA, IoP, FNWI), Faculty of Science, Other Research IHEF (IoP, FNWI), Gravitation and Astroparticle Physics Amsterdam, and IoP (FNWI)

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Dark matter, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, RESPONSE STABILIZATION, Particle identification, Particle detector, Spectral line, law.invention, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), CUORE, WIMP, NUCLEAR-DATA SHEETS, law, SIGNALS, SEARCH, 0103 physical sciences, DETECTORS, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), dark matter experiments, dark matter detectors, 010306 general physics, Nuclear Experiment, CANDIDATES, Physics, dark matter detectors, 010308 nuclear & particles physics, dark matter experiments, Bolometer, CONSTRAINTS, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), CUORICINO, 3. Good health, CONDUCTION, INTERACTING MASSIVE PARTICLES, Measuring instrument, wimp, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We collected 19.4 days of data from four 750 g TeO2 bolometers, and in three of them we were able to set the energy threshold around 3 keV using a new analysis technique. We found a background rate ranging from 25 cpd/keV/kg at 3 keV to 2 cpd/keV/kg at 25 keV, and a peak at 4.7 keV. The origin of this peak is presently unknown, but its presence is confirmed by a reanalysis of 62.7 kg.days of data from the finished CUORICINO experiment. Finally, we report the expected sensitivities of the CUORE0 (52 bolometers) and CUORE (988 bolometers) experiments to a WIMP annual modulation signal., 9 pages, 10 figures

Published
2013

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

Author

Alessandria, F, Ardito, R, Artusa, D, Avignone III, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, BIASSONI, MATTEO, Bloxham, T, BROFFERIO, CHIARA, Bucci, C, Cai, X, Canonica, L, CAPELLI, SILVIA, Carbone, L, Cardani, L, Carrettoni, M, Casali, N, Chott, N, CLEMENZA, MASSIMILIANO, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, Datskov, V, Biasi, A, Deninno, M, Di Domizio, S, Vacri, M, Ejzak, L, Faccini, R, Fang, D, Farach, H, FERRI, ELENA, Ferroni, F, FIORINI, ETTORE, Franceschi, M, Freedman, S, Fujikawa, B, t.e.x.t.b.f..u.n.d.e.r.l.i.n.e.{.A. Giachero}, n, GIRONI, LUCA, Giuliani, A, Goett, J, Goodsell, A, Gorla, P, GOTTI, CLAUDIO, Guardincerri, E, Gutierrez, T, Haller, E, Han, K, Heeger, K, Huang, H, Kadel, R, Kazkaz, K, Keppel, G, Kogler, L, Kolomensky, Y, Lenz, D, Li, Y, Ligi, C, Liu, X, Ma, Y, Maiano, C, MAINO, MATTEO, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Newman, S, Nisi, S, Nones, C, Norman, E, NUCCIOTTI, ANGELO ENRICO LODOVICO, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, PAVAN, MAURA, Pedretti, M, Pessina, G, Pirro, S, Previtali, E, Rampazzo, V, Reil, R, Rimondi, F, Rosenfeld, C, Rusconi, C, Sangiorgio, S, Scielzo, N, SISTI, MONICA, Smith, A, Sparks, L, Stivanello, F, Taffarello, L, Tenconi, M, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Whitten J.r. , C, Wise, T, Woodcraft, A, ZANOTTI, LUIGI ERNESTO, Zarra, C, Zhu, B, Zucchelli, S., CSNSM PS1, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), F. Alessandria, R. Ardito, D. R. Artusa, F. T. Avignone III, O. Azzolini, M. Balata, T. I. Bank, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, T. Bloxham, C. Brofferio, C. Bucci, X. Z. Cai, L. Canonica, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R. J. Creswick, I. Dafinei, A. Dally, V. Datskov, A. De Biasi, M. P. Decowski, M. M. Deninno, S. Di Domizio, M. L. di Vacri, L. Ejzak, R. Faccini, D. Q. Fang, H. A. Farach, E. Ferri, F. Ferroni, E. Fiorini, M. A. Franceschi, S. J. Freedman, B. K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, J. Goett, P. Gorla, C. Gotti, E. Guardincerri, T. D. Gutierrez, E. E. Haller, K. Han, K. M. Heeger, H. Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, L. Kogler, Yu. G. Kolomensky, D. Lenz, Y. L. Li, C. Ligi, X. Liu, Y. G. Ma, C. Maiano, M. Maino, M. Martinez, R. H. Maruyama, N. Moggi, S. Morganti, T. Napolitano, S. Newman, S. Nisi, C. None, E. B. Norman, A. Nucciotti, F. Orio, D. Orlandi, J. L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, S. Pirro, E. Previtali, V. Rampazzo, F. Rimondi, C. Rosenfeld, C. Rusconi, S. Sangiorgio, N. D. Scielzo, M. Sisti, A. R. Smith, L. Taffarello, M. Tenconi, W. D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B. S. Wang, H. W. Wang, C. A. Whitten Jr., T. Wise, A. Woodcraft, L. Zanotti, C. Zarra, B. X. Zhu, S. Zucchelli, IoP (FNWI), Gravitation and Astroparticle Physics Amsterdam, GRAPPA (ITFA, IoP, FNWI), Faculty of Science, Other Research IHEF (IoP, FNWI), Alessandria, F, Ardito, R, Artusa, D, Avignone III, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Bloxham, T, Brofferio, C, Bucci, C, Cai, X, Canonica, L, Capelli, S, Carbone, L, Cardani, L, Carrettoni, M, Casali, N, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, Datskov, V, Biasi, A, Deninno, M, Di Domizio, S, Vacri, M, Ejzak, L, Faccini, R, Fang, D, Farach, H, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, t. e. x. t. b. f. . u. n. d. e. r. l. i. n. e. {. A. Giachero}, N, Gironi, L, Giuliani, A, Goett, J, Goodsell, A, Gorla, P, Gotti, C, Guardincerri, E, Gutierrez, T, Haller, E, Han, K, Heeger, K, Huang, H, Kadel, R, Kazkaz, K, Keppel, G, Kogler, L, Kolomensky, Y, Lenz, D, Li, Y, Ligi, C, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Newman, S, Nisi, S, Nones, C, Norman, E, Nucciotti, A, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pedretti, M, Pessina, G, Pirro, S, Previtali, E, Rampazzo, V, Reil, R, Rimondi, F, Rosenfeld, C, Rusconi, C, Sangiorgio, S, Scielzo, N, Sisti, M, Smith, A, Sparks, L, Stivanello, F, Taffarello, L, Tenconi, M, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Whitten J. r., C, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhu, B, and Zucchelli, S

Subjects
Particle physics, axions, dark matter experiment, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, law.invention, Nuclear physics, High Energy Physics - Experiment (hep-ex), Experiment, dark matter experiments, CUORE, Low energy, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Matrix element, High Energy Physics, 010306 general physics, Pseudovector, Axion, Physics, 010308 nuclear & particles physics, Bolometer, Astronomy and Astrophysics, INVARIANCE, STRONG CP PROBLEM, solar axions
Abstract

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

Published
2013

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

Author

F. Orio, L. Taffarello, M. Carrettoni, B. S. Wang, Kareem Kazkaz, O. Azzolini, Ke Han, Reina H. Maruyama, C. Rosenfeld, Stuart J. Freedman, A. Woodcraft, H. A. Farach, P. Gorla, A. Giuliani, F. Ferroni, V. Palmieri, Emanuele Ferri, Eugene E. Haller, M. M. Deninno, D. Orlandi, Y. L. Li, Ettore Fiorini, Eric B. Norman, A. Bersani, Massimiliano Clemenza, M. A. Franceschi, L. Canonica, Silvio Morganti, T. Napolitano, L. Kogler, N. Moggi, N. Chott, A. Giachero, G. Bari, Larissa M. Ejzak, M. Maino, Samuele Sangiorgio, Stefano Nisi, F. Bellini, W. D. Tian, H. W. Wang, C. Cosmelli, M. Biassoni, F. Stivanello, L. Zanotti, Y. Mei, Deqing Fang, A. Nucciotti, Claudio Gotti, X. Z. Cai, Marisa Pedretti, Simone Capelli, R. W. Kadel, C. Bucci, T. D. Gutierrez, T. Bloxham, M. L. Di Vacri, Raffaele Ardito, C. Brofferio, R. J. Creswick, S. Pirro, Oliviero Cremonesi, C. Maiano, K. M. Heeger, A. Goodsell, J. Goett, L. Carbone, Ezio Previtali, Marco Pallavicini, L. Gironi, F. T. Avignone, G. Pessina, G. Ventura, M. Balata, H. Z. Huang, Yu. G. Kolomensky, Franco Rimondi, S. Zucchelli, Nicholas Scielzo, J. L. Ouellet, R. Faccini, N. Casali, C. Nones, E. Guardincerri, X. Liu, Ioan Dafinei, Jeffrey W. Beeman, S. Newman, V. Rampazzo, L. Pattavina, F. Alessandria, M. I. Martínez, M. Tenconi, B. X. Zhu, Carlo Ligi, M. Pavan, Vladimir Datskov, S. Di Domizio, Yu-Gang Ma, C. Zarra, B. K. Fujikawa, M. Vignati, A. De Biasi, T. I. Banks, A. Dally, Claudia Tomei, Alan R. Smith, S. Trentalange, G. Keppel, D. R. Artusa, Monica Sisti, L. Cardani, C. A. Whitten, L. Sparks, R. Reil, C. Rusconi, D. Lenz, T. Wise, CSNSM PS1, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre Interdisciplinaire de Nanoscience de Marseille (CINaM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), F. Alessandria, R. Ardito, D.R. Artusa, F.T. Avignone III, O. Azzolini, M. Balata, T.I. Bank, G. Bari, J. Beeman, F. Bellini, A. Bersani, M. Biassoni, T. Bloxham, C. Brofferio, C. Bucci, X.Z. Cai, L. Canonica, S. Capelli, L. Carbone, L. Cardani, M. Carrettoni, N. Casali, N. Chott, M. Clemenza, C. Cosmelli, O. Cremonesi, R.J. Creswick, I. Dafinei, A. Dally, V. Datskov, A. De Biasi, M.M. Deninno, S. Di Domizio, M.L. di Vacri, L. Ejzak, R. Faccini, D.Q. Fang, H.A. Farach, E. Ferri, F. Ferroni, E. Fiorini, M.A. Franceschi, S.J. Freedman, B.K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, J. Goett, A. Goodsell, P. Gorla, C. Gotti, E. Guardincerri, T.D. Gutierrez, E.E. Haller, K. Han, K.M. Heeger, H.Z. Huang, R. Kadel, K. Kazkaz, G. Keppel, L. Kogler, Yu. G. Kolomensky, D. Lenz, Y.L. Li, C. Ligi, X. Liu, Y.G. Ma, C. Maiano, M. Maino, M. Martinez, R.H. Maruyama, Y. Mei, N. Moggi, S. Morganti, T. Napolitano, S. Newman, S. Nisi, C. None, E.B. Norman, A. Nucciotti, F. Orio, D. Orlandi, J.L. Ouellet, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, M. Pedretti, G. Pessina, S. Pirro, E. Previtali, V. Rampazzo, R. Reil, F. Rimondi, C. Rosenfeld, C. Rusconi, S. Sangiorgio, N.D. Scielzo, M. Sisti, A.R. Smith, L. Spark, F. Stivanello, L. Taffarello, M. Tenconi, W.D. Tian, C. Tomei, S. Trentalange, G. Ventura, M. Vignati, B.S. Wang, H.W. Wang, C.A. Whitten Jr, T. Wise, A. Woodcraft, L. Zanotti, C. Zarra, B.X. Zhu, S. Zucchelli, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), Alessandria, F, Ardito, R, Artusa, D, Avignone III, F, Azzolini, O, Balata, M, Banks, T, Bari, G, Beeman, J, Bellini, F, Bersani, A, Biassoni, M, Bloxham, T, Brofferio, C, Bucci, C, Cai, X, Canonica, L, Capelli, S, Carbone, L, Cardani, L, Carrettoni, M, Casali, N, Chott, N, Clemenza, M, Cosmelli, C, Cremonesi, O, Creswick, R, Dafinei, I, Dally, A, Datskov, V, De Biasi, A, Deninno, M, Di Domizio, S, di Vacri, M, Ejzak, L, Faccini, R, Fang, D, Farach, H, Ferri, E, Ferroni, F, Fiorini, E, Franceschi, M, Freedman, S, Fujikawa, B, Giachero, A, Gironi, L, Giuliani, A, Goett, J, Goodsell, A, Gorla, P, Gotti, C, Guardincerri, E, Gutierrez, T, Haller, E, Han, K, Heeger, K, Huang, H, Kadel, R, Kazkaz, K, Keppel, G, Kogler, L, Kolomensky, Y, Lenz, D, Li, Y, Ligi, C, Liu, X, Ma, Y, Maiano, C, Maino, M, Martinez, M, Maruyama, R, Mei, Y, Moggi, N, Morganti, S, Napolitano, T, Newman, S, Nisi, S, Nones, C, Norman, E, Nucciotti, A, Orio, F, Orlandi, D, Ouellet, J, Pallavicini, M, Palmieri, V, Pattavina, L, Pavan, M, Pedretti, M, Pessina, G, Pirro, S, Previtali, E, Rampazzo, V, Reil, R, Rimondi, F, Rosenfeld, C, Rusconi, C, Sangiorgio, S, Scielzo, N, Sisti, M, Smith, A, Sparks, L, Stivanello, F, Taffarello, L, Tenconi, M, Tian, W, Tomei, C, Trentalange, S, Ventura, G, Vignati, M, Wang, B, Wang, H, Whitten Jr, C, Wise, T, Woodcraft, A, Zanotti, L, Zarra, C, Zhu, B, and Zucchelli, S

Subjects
Physics - Instrumentation and Detectors, Nuclear engineering, bolometer, neutrinoless double beta decay, radioactive background, surface contamination, FOS: Physical sciences, chemistry.chemical_element, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Bolometer, Neutrinoless Double Beta Decay, Surface contamination, Radioactive background, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), CUORE, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Detector, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Contamination, Copper, NEUTRINOS, FIS/01 - FISICA SPERIMENTALE, RARE EVENTS, chemistry, DOUBLE-BETA DECAY, FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
Abstract

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

Published
2013

60. Tritium Beta Spectrum Measurement and Neutrino Mass Limit from Cyclotron Radiation Emission Spectroscopy.

Author

Ashtari Esfahani A, Böser S, Buzinsky N, Carmona-Benitez MC, Claessens C, de Viveiros L, Doe PJ, Fertl M, Formaggio JA, Gaison JK, Gladstone L, Grando M, Guigue M, Hartse J, Heeger KM, Huyan X, Johnston J, Jones AM, Kazkaz K, LaRoque BH, Li M, Lindman A, Machado E, Marsteller A, Matthé C, Mohiuddin R, Monreal B, Mueller R, Nikkel JA, Novitski E, Oblath NS, Peña JI, Pettus W, Reimann R, Robertson RGH, Rosa De Jesús D, Rybka G, Saldaña L, Schram M, Slocum PL, Stachurska J, Sun YH, Surukuchi PT, Tedeschi JR, Telles AB, Thomas F, Thomas M, Thorne LA, Thümmler T, Tvrznikova L, Van De Pontseele W, VanDevender BA, Weintroub J, Weiss TE, Wendler T, Young A, Zayas E, and Ziegler A

Abstract

The absolute scale of the neutrino mass plays a critical role in physics at every scale, from the subatomic to the cosmological. Measurements of the tritium end-point spectrum have provided the most precise direct limit on the neutrino mass scale. In this Letter, we present advances by Project 8 to the cyclotron radiation emission spectroscopy (CRES) technique culminating in the first frequency-based neutrino mass limit. With only a cm^{3}-scale physical detection volume, a limit of m&#95;{β}<155  eV/c^{2} (152  eV/c^{2}) is extracted from the background-free measurement of the continuous tritium beta spectrum in a Bayesian (frequentist) analysis. Using ^{83m}Kr calibration data, a resolution of 1.66±0.19  eV (FWHM) is measured, the detector response model is validated, and the efficiency is characterized over the multi-keV tritium analysis window. These measurements establish the potential of CRES for a high-sensitivity next-generation direct neutrino mass experiment featuring low background and high resolution.

Published
2023
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61. First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment.

Author

Aalbers J, Akerib DS, Akerlof CW, Al Musalhi AK, Alder F, Alqahtani A, Alsum SK, Amarasinghe CS, Ames A, Anderson TJ, Angelides N, Araújo HM, Armstrong JE, Arthurs M, Azadi S, Bailey AJ, Baker A, Balajthy J, Balashov S, Bang J, Bargemann JW, Barry MJ, Barthel J, Bauer D, Baxter A, Beattie K, Belle J, Beltrame P, Bensinger J, Benson T, Bernard EP, Bhatti A, Biekert A, Biesiadzinski TP, Birch HJ, Birrittella B, Blockinger GM, Boast KE, Boxer B, Bramante R, Brew CAJ, Brás P, Buckley JH, Bugaev VV, Burdin S, Busenitz JK, Buuck M, Cabrita R, Carels C, Carlsmith DL, Carlson B, Carmona-Benitez MC, Cascella M, Chan C, Chawla A, Chen H, Cherwinka JJ, Chott NI, Cole A, Coleman J, Converse MV, Cottle A, Cox G, Craddock WW, Creaner O, Curran D, Currie A, Cutter JE, Dahl CE, David A, Davis J, Davison TJR, Delgaudio J, Dey S, de Viveiros L, Dobi A, Dobson JEY, Druszkiewicz E, Dushkin A, Edberg TK, Edwards WR, Elnimr MM, Emmet WT, Eriksen SR, Faham CH, Fan A, Fayer S, Fearon NM, Fiorucci S, Flaecher H, Ford P, Francis VB, Fraser ED, Fruth T, Gaitskell RJ, Gantos NJ, Garcia D, Geffre A, Gehman VM, Genovesi J, Ghag C, Gibbons R, Gibson E, Gilchriese MGD, Gokhale S, Gomber B, Green J, Greenall A, Greenwood S, van der Grinten MGD, Gwilliam CB, Hall CR, Hans S, Hanzel K, Harrison A, Hartigan-O'Connor E, Haselschwardt SJ, Hernandez MA, Hertel SA, Heuermann G, Hjemfelt C, Hoff MD, Holtom E, Hor JY, Horn M, Huang DQ, Hunt D, Ignarra CM, Jacobsen RG, Jahangir O, James RS, Jeffery SN, Ji W, Johnson J, Kaboth AC, Kamaha AC, Kamdin K, Kasey V, Kazkaz K, Keefner J, Khaitan D, Khaleeq M, Khazov A, Khurana I, Kim YD, Kocher CD, Kodroff D, Korley L, Korolkova EV, Kras J, Kraus H, Kravitz S, Krebs HJ, Kreczko L, Krikler B, Kudryavtsev VA, Kyre S, Landerud B, Leason EA, Lee C, Lee J, Leonard DS, Leonard R, Lesko KT, Levy C, Li J, Liao FT, Liao J, Lin J, Lindote A, Linehan R, Lippincott WH, Liu R, Liu X, Liu Y, Loniewski C, Lopes MI, Lopez Asamar E, López Paredes B, Lorenzon W, Lucero D, Luitz S, Lyle JM, Majewski PA, Makkinje J, Malling DC, Manalaysay A, Manenti L, Mannino RL, Marangou N, Marzioni MF, Maupin C, McCarthy ME, McConnell CT, McKinsey DN, McLaughlin J, Meng Y, Migneault J, Miller EH, Mizrachi E, Mock JA, Monte A, Monzani ME, Morad JA, Morales Mendoza JD, Morrison E, Mount BJ, Murdy M, Murphy ASJ, Naim D, Naylor A, Nedlik C, Nehrkorn C, Neves F, Nguyen A, Nikoleyczik JA, Nilima A, O'Dell J, O'Neill FG, O'Sullivan K, Olcina I, Olevitch MA, Oliver-Mallory KC, Orpwood J, Pagenkopf D, Pal S, Palladino KJ, Palmer J, Pangilinan M, Parveen N, Patton SJ, Pease EK, Penning B, Pereira C, Pereira G, Perry E, Pershing T, Peterson IB, Piepke A, Podczerwinski J, Porzio D, Powell S, Preece RM, Pushkin K, Qie Y, Ratcliff BN, Reichenbacher J, Reichhart L, Rhyne CA, Richards A, Riffard Q, Rischbieter GRC, Rodrigues JP, Rodriguez A, Rose HJ, Rosero R, Rossiter P, Rushton T, Rutherford G, Rynders D, Saba JS, Santone D, Sazzad ABMR, Schnee RW, Scovell PR, Seymour D, Shaw S, Shutt T, Silk JJ, Silva C, Sinev G, Skarpaas K, Skulski W, Smith R, Solmaz M, Solovov VN, Sorensen P, Soria J, Stancu I, Stark MR, Stevens A, Stiegler TM, Stifter K, Studley R, Suerfu B, Sumner TJ, Sutcliffe P, Swanson N, Szydagis M, Tan M, Taylor DJ, Taylor R, Taylor WC, Temples DJ, Tennyson BP, Terman PA, Thomas KJ, Tiedt DR, Timalsina M, To WH, Tomás A, Tong Z, Tovey DR, Tranter J, Trask M, Tripathi M, Tronstad DR, Tull CE, Turner W, Tvrznikova L, Utku U, Va'vra J, Vacheret A, Vaitkus AC, Verbus JR, Voirin E, Waldron WL, Wang A, Wang B, Wang JJ, Wang W, Wang Y, Watson JR, Webb RC, White A, White DT, White JT, White RG, Whitis TJ, Williams M, Wisniewski WJ, Witherell MS, Wolfs FLH, Wolfs JD, Woodford S, Woodward D, Worm SD, Wright CJ, Xia Q, Xiang X, Xiao Q, Xu J, Yeh M, Yin J, Young I, Zarzhitsky P, Zuckerman A, and Zweig EA

Abstract

The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN's first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9  GeV/c^{2}. The most stringent limit is set for spin-independent scattering at 36  GeV/c^{2}, rejecting cross sections above 9.2×10^{-48}  cm at the 90% confidence level.

Published
2023
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62. Low-Energy Physics Reach of Xenon Detectors for Nuclear-Recoil-Based Dark Matter and Neutrino Experiments.

Author

Lenardo BG, Xu J, Pereverzev S, Akindele OA, Naim D, Kingston J, Bernstein A, Kazkaz K, Tripathi M, Awe C, Li L, Runge J, Hedges S, An P, and Barbeau PS

Abstract

Dual-phase xenon detectors lead the search for keV-scale nuclear recoil signals expected from the scattering of weakly interacting massive particle (WIMP) dark matter, and can potentially be used to study the coherent nuclear scattering of MeV-scale neutrinos. New capabilities of such experiments can be enabled by extending their nuclear recoil searches down to the lowest measurable energy. The response of the liquid xenon target medium to nuclear recoils, however, is not well characterized below a few keV, leading to large uncertainties in projected sensitivities. In this work, we report a new measurement of ionization signals from nuclear recoils in liquid xenon down to the lowest energy reported to date. At 0.3 keV, we find that the average recoil produces approximately one ionization electron; this is the first measurement of nuclear recoil signals at the single-ionization-electron level, approaching the physical limit of liquid xenon ionization detectors. We discuss the implications of these measurements on the physics reach of xenon detectors for nuclear-recoil-based WIMP dark matter searches and the detection of coherent elastic neutrino-nucleus scattering.

Published
2019
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63. Results of a Search for Sub-GeV Dark Matter Using 2013 LUX Data.

Author

Akerib DS, Alsum S, Araújo HM, Bai X, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Boxer B, Brás P, Burdin S, Byram D, Carmona-Benitez MC, Chan C, Cutter JE, Davison TJR, Druszkiewicz E, Fallon SR, Fan A, Fiorucci S, Gaitskell RJ, Genovesi J, Ghag C, Gilchriese MGD, Gwilliam C, Hall CR, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Jacobsen RG, Jahangir O, Ji W, Kamdin K, Kazkaz K, Khaitan D, Knoche R, Korolkova EV, Kravitz S, Kudryavtsev VA, Lenardo BG, Lesko KT, Liao J, Lin J, Lindote A, Lopes MI, Manalaysay A, Mannino RL, Marangou N, Marzioni MF, McKinsey DN, Mei DM, Moongweluwan M, Morad JA, Murphy ASJ, Naylor A, Nehrkorn C, Nelson HN, Neves F, Oliver-Mallory KC, Palladino KJ, Pease EK, Riffard Q, Rischbieter GRC, Rhyne C, Rossiter P, Shaw S, Shutt TA, Silva C, Solmaz M, Solovov VN, Sorensen P, Sumner TJ, Szydagis M, Taylor DJ, Taylor WC, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Utku U, Uvarov S, Velan V, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FLH, Woodward D, Xu J, Yazdani K, and Zhang C

Abstract

The scattering of dark matter (DM) particles with sub-GeV masses off nuclei is difficult to detect using liquid xenon-based DM search instruments because the energy transfer during nuclear recoils is smaller than the typical detector threshold. However, the tree-level DM-nucleus scattering diagram can be accompanied by simultaneous emission of a bremsstrahlung photon or a so-called "Migdal" electron. These provide an electron recoil component to the experimental signature at higher energies than the corresponding nuclear recoil. The presence of this signature allows liquid xenon detectors to use both the scintillation and the ionization signals in the analysis where the nuclear recoil signal would not be otherwise visible. We report constraints on spin-independent DM-nucleon scattering for DM particles with masses of 0.4-5  GeV/c^{2} using 1.4×10^{4}  kg day of search exposure from the 2013 data from the Large Underground Xenon (LUX) experiment for four different classes of mediators. This analysis extends the reach of liquid xenon-based DM search instruments to lower DM masses than has been achieved previously.

Published
2019
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64. First Searches for Axions and Axionlike Particles with the LUX Experiment.

Author

Akerib DS, Alsum S, Aquino C, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Brás P, Byram D, Cahn SB, Carmona-Benitez MC, Chan C, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJR, Dobi A, Dobson JEY, Druszkiewicz E, Edwards BN, Faham CH, Fallon SR, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MGD, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Jacobsen RG, Ji W, Kamdin K, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy ASJ, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Palladino KJ, Pease EK, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solmaz M, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor WC, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Velan V, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FLH, Xu J, Yazdani K, Young SK, and Zhang C

Abstract

The first searches for axions and axionlike particles with the Large Underground Xenon experiment are presented. Under the assumption of an axioelectric interaction in xenon, the coupling constant between axions and electrons g&#95;{Ae} is tested using data collected in 2013 with an exposure totaling 95 live days ×118  kg. A double-sided, profile likelihood ratio statistic test excludes g&#95;{Ae} larger than 3.5×10^{-12} (90% C.L.) for solar axions. Assuming the Dine-Fischler-Srednicki-Zhitnitsky theoretical description, the upper limit in coupling corresponds to an upper limit on axion mass of 0.12  eV/c^{2}, while for the Kim-Shifman-Vainshtein-Zhakharov description masses above 36.6  eV/c^{2} are excluded. For galactic axionlike particles, values of g&#95;{Ae} larger than 4.2×10^{-13} are excluded for particle masses in the range 1-16  keV/c^{2}. These are the most stringent constraints to date for these interactions.

Published
2017
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65. Limits on Spin-Dependent WIMP-Nucleon Cross Section Obtained from the Complete LUX Exposure.

Author

Akerib DS, Alsum S, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Brás P, Byram D, Cahn SB, Carmona-Benitez MC, Chan C, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJR, Dobi A, Dobson JEY, Druszkiewicz E, Edwards BN, Faham CH, Fallon SR, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gilchriese MGD, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Jacobsen RG, Ji W, Kamdin K, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy ASJ, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Palladino KJ, Pease EK, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solmaz M, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor WC, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Velan V, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FLH, Xu J, Yazdani K, Young SK, and Zhang C

Abstract

We present experimental constraints on the spin-dependent WIMP-nucleon elastic cross sections from the total 129.5  kg yr exposure acquired by the Large Underground Xenon experiment (LUX), operating at the Sanford Underground Research Facility in Lead, South Dakota (USA). A profile likelihood ratio analysis allows 90% C.L. upper limits to be set on the WIMP-neutron (WIMP-proton) cross section of σ&#95;{n}=1.6×10^{-41}  cm^{2} (σ&#95;{p}=5×10^{-40}  cm^{2}) at 35  GeV c^{-2}, almost a sixfold improvement over the previous LUX spin-dependent results. The spin-dependent WIMP-neutron limit is the most sensitive constraint to date.

Published
2017
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66. Results from a Search for Dark Matter in the Complete LUX Exposure.

Author

Akerib DS, Alsum S, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Bramante R, Brás P, Byram D, Cahn SB, Carmona-Benitez MC, Chan C, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJ, Dobi A, Dobson JE, Druszkiewicz E, Edwards BN, Faham CH, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MG, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Ihm M, Jacobsen RG, Ji W, Kamdin K, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy AS, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Palladino KJ, Pease EK, Phelps P, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solmaz M, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor WC, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FL, Xu J, Yazdani K, Young SK, and Zhang C

Abstract

We report constraints on spin-independent weakly interacting massive particle (WIMP)-nucleon scattering using a 3.35×10^{4}  kg day exposure of the Large Underground Xenon (LUX) experiment. A dual-phase xenon time projection chamber with 250 kg of active mass is operated at the Sanford Underground Research Facility under Lead, South Dakota (USA). With roughly fourfold improvement in sensitivity for high WIMP masses relative to our previous results, this search yields no evidence of WIMP nuclear recoils. At a WIMP mass of 50  GeV c^{-2}, WIMP-nucleon spin-independent cross sections above 2.2×10^{-46}  cm^{2} are excluded at the 90% confidence level. When combined with the previously reported LUX exposure, this exclusion strengthens to 1.1×10^{-46}  cm^{2} at 50  GeV c^{-2}.

Published
2017
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67. Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX Data.

Author

Akerib DS, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Bradley A, Bramante R, Cahn SB, Carmona-Benitez MC, Chan C, Chapman JJ, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJ, de Viveiros L, Dobi A, Dobson JE, Druszkiewicz E, Edwards BN, Faham CH, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MG, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Ihm M, Jacobsen RG, Ji W, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Malling DC, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy AS, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Ott RA, Palladino KJ, Pangilinan M, Pease EK, Phelps P, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor W, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FL, Yazdani K, Young SK, and Zhang C

Abstract

We present constraints on weakly interacting massive particles (WIMP)-nucleus scattering from the 2013 data of the Large Underground Xenon dark matter experiment, including 1.4×10^{4}  kg day of search exposure. This new analysis incorporates several advances: single-photon calibration at the scintillation wavelength, improved event-reconstruction algorithms, a revised background model including events originating on the detector walls in an enlarged fiducial volume, and new calibrations from decays of an injected tritium β source and from kinematically constrained nuclear recoils down to 1.1 keV. Sensitivity, especially to low-mass WIMPs, is enhanced compared to our previous results which modeled the signal only above a 3 keV minimum energy. Under standard dark matter halo assumptions and in the mass range above 4  GeV c^{-2}, these new results give the most stringent direct limits on the spin-independent WIMP-nucleon cross section. The 90% C.L. upper limit has a minimum of 0.6 zb at 33  GeV c^{-2} WIMP mass.

Published
2016
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68. Results on the Spin-Dependent Scattering of Weakly Interacting Massive Particles on Nucleons from the Run 3 Data of the LUX Experiment.

Author

Akerib DS, Araújo HM, Bai X, Bailey AJ, Balajthy J, Beltrame P, Bernard EP, Bernstein A, Biesiadzinski TP, Boulton EM, Bradley A, Bramante R, Cahn SB, Carmona-Benitez MC, Chan C, Chapman JJ, Chiller AA, Chiller C, Currie A, Cutter JE, Davison TJ, de Viveiros L, Dobi A, Dobson JE, Druszkiewicz E, Edwards BN, Faham CH, Fiorucci S, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MG, Hall CR, Hanhardt M, Haselschwardt SJ, Hertel SA, Hogan DP, Horn M, Huang DQ, Ignarra CM, Ihm M, Jacobsen RG, Ji W, Kazkaz K, Khaitan D, Knoche R, Larsen NA, Lee C, Lenardo BG, Lesko KT, Lindote A, Lopes MI, Malling DC, Manalaysay A, Mannino RL, Marzioni MF, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad JA, Murphy AS, Nehrkorn C, Nelson HN, Neves F, O'Sullivan K, Oliver-Mallory KC, Ott RA, Palladino KJ, Pangilinan M, Pease EK, Phelps P, Reichhart L, Rhyne C, Shaw S, Shutt TA, Silva C, Solovov VN, Sorensen P, Stephenson S, Sumner TJ, Szydagis M, Taylor DJ, Taylor W, Tennyson BP, Terman PA, Tiedt DR, To WH, Tripathi M, Tvrznikova L, Uvarov S, Verbus JR, Webb RC, White JT, Whitis TJ, Witherell MS, Wolfs FL, Yazdani K, Young SK, and Zhang C

Abstract

We present experimental constraints on the spin-dependent WIMP (weakly interacting massive particle)-nucleon elastic cross sections from LUX data acquired in 2013. LUX is a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility (Lead, South Dakota), which is designed to observe the recoil signature of galactic WIMPs scattering from xenon nuclei. A profile likelihood ratio analysis of 1.4×10^{4}  kg day of fiducial exposure allows 90% C.L. upper limits to be set on the WIMP-neutron (WIMP-proton) cross section of σ&#95;{n}=9.4×10^{-41}  cm^{2} (σ&#95;{p}=2.9×10^{-39}  cm^{2}) at 33  GeV/c^{2}. The spin-dependent WIMP-neutron limit is the most sensitive constraint to date.

Published
2016
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69. First measurement of the ionization yield of nuclear recoils in liquid argon.

Author

Joshi TH, Sangiorgio S, Bernstein A, Foxe M, Hagmann C, Jovanovic I, Kazkaz K, Mozin V, Norman EB, Pereverzev SV, Rebassoo F, and Sorensen P

Abstract

This Letter details a measurement of the ionization yield (Q(y)) of 6.7 keV(40)Ar atoms stopping in a liquid argon detector. The Q(y) of 3.6-6.3 detected e(-)/keV, for applied electric fields in the range 240-2130 V/cm, is encouraging for the use of this detector medium to search for the signals from hypothetical dark matter particle interactions and from coherent elastic neutrino-nucleus scattering. A significant dependence of Q(y) on the applied electric field is observed and explained in the context of ion recombination.

Published
2014
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70. First results from the LUX dark matter experiment at the Sanford underground research facility.

Author

Akerib DS, Araújo HM, Bai X, Bailey AJ, Balajthy J, Bedikian S, Bernard E, Bernstein A, Bolozdynya A, Bradley A, Byram D, Cahn SB, Carmona-Benitez MC, Chan C, Chapman JJ, Chiller AA, Chiller C, Clark K, Coffey T, Currie A, Curioni A, Dazeley S, de Viveiros L, Dobi A, Dobson J, Dragowsky EM, Druszkiewicz E, Edwards B, Faham CH, Fiorucci S, Flores C, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MG, Hall C, Hanhardt M, Hertel SA, Horn M, Huang DQ, Ihm M, Jacobsen RG, Kastens L, Kazkaz K, Knoche R, Kyre S, Lander R, Larsen NA, Lee C, Leonard DS, Lesko KT, Lindote A, Lopes MI, Lyashenko A, Malling DC, Mannino R, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad J, Morii M, Murphy AS, Nehrkorn C, Nelson H, Neves F, Nikkel JA, Ott RA, Pangilinan M, Parker PD, Pease EK, Pech K, Phelps P, Reichhart L, Shutt T, Silva C, Skulski W, Sofka CJ, Solovov VN, Sorensen P, Stiegler T, O'Sullivan K, Sumner TJ, Svoboda R, Sweany M, Szydagis M, Taylor D, Tennyson B, Tiedt DR, Tripathi M, Uvarov S, Verbus JR, Walsh N, Webb R, White JT, White D, Witherell MS, Wlasenko M, Wolfs FL, Woods M, and Zhang C

Abstract

The Large Underground Xenon (LUX) experiment is a dual-phase xenon time-projection chamber operating at the Sanford Underground Research Facility (Lead, South Dakota). The LUX cryostat was filled for the first time in the underground laboratory in February 2013. We report results of the first WIMP search data set, taken during the period from April to August 2013, presenting the analysis of 85.3 live days of data with a fiducial volume of 118 kg. A profile-likelihood analysis technique shows our data to be consistent with the background-only hypothesis, allowing 90% confidence limits to be set on spin-independent WIMP-nucleon elastic scattering with a minimum upper limit on the cross section of 7.6 × 10(-46) cm(2) at a WIMP mass of 33 GeV/c(2). We find that the LUX data are in disagreement with low-mass WIMP signal interpretations of the results from several recent direct detection experiments.

Published
2014
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71. Measurement of day and night neutrino energy spectra at SNO and constraints on neutrino mixing parameters.

Author

Ahmad QR, Allen RC, Andersen TC, Anglin JD, Barton JC, Beier EW, Bercovitch M, Bigu J, Biller SD, Black RA, Blevis I, Boardman RJ, Boger J, Bonvin E, Boulay MG, Bowler MG, Bowles TJ, Brice SJ, Browne MC, Bullard TV, Bühler G, Cameron J, Chan YD, Chen HH, Chen M, Chen X, Cleveland BT, Clifford ET, Cowan JH, Cowen DF, Cox GA, Dai X, Dalnoki-Veress F, Davidson WF, Doe PJ, Doucas G, Dragowsky MR, Duba CA, Duncan FA, Dunford M, Dunmore JA, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Ferraris AP, Ford RJ, Formaggio JA, Fowler MM, Frame K, Frank ED, Frati W, Gagnon N, Germani JV, Gil S, Graham K, Grant DR, Hahn RL, Hallin AL, Hallman ED, Hamer AS, Hamian AA, Handler WB, Haq RU, Hargrove CK, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Hepburn JD, Heron H, Hewett J, Hime A, Howe M, Hykawy JG, Isaac MC, Jagam P, Jelley NA, Jillings C, Jonkmans G, Kazkaz K, Keener PT, Klein JR, Knox AB, Komar RJ, Kouzes R, Kutter T, Kyba CC, Law J, Lawson IT, Lay M, Lee HW, Lesko KT, Leslie JR, Levine I, Locke W, Luoma S, Lyon J, Majerus S, Mak HB, Maneira J, Manor J, Marino AD, McCauley N, McDonald AB, McDonald DS, McFarlane K, McGregor G, Meijer Drees R, Mifflin C, Miller GG, Milton G, Moffat BA, Moorhead M, Nally CW, Neubauer MS, Newcomer FM, Ng HS, Noble AJ, Norman EB, Novikov VM, O'Neill M, Okada CE, Ollerhead RW, Omori M, Orrell JL, Oser SM, Poon AW, Radcliffe TJ, Roberge A, Robertson BC, Robertson RG, Rosendahl SS, Rowley JK, Rusu VL, Saettler E, Schaffer KK, Schwendener MH, Schülke A, Seifert H, Shatkay M, Simpson JJ, Sims CJ, Sinclair D, Skensved P, Smith AR, Smith MW, Spreitzer T, Starinsky N, Steiger TD, Stokstad RG, Stonehill LC, Storey RS, Sur B, Tafirout R, Tagg N, Tanner NW, Taplin RK, Thorman M, Thornewell PM, Trent PT, Tserkovnyak YI, Van Berg R, Van de Water RG, Virtue CJ, Waltham CE, Wang JX, Wark DL, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wittich P, Wouters JM, and Yeh M

Abstract

The Sudbury Neutrino Observatory (SNO) has measured day and night solar neutrino energy spectra and rates. For charged current events, assuming an undistorted 8B spectrum, the night minus day rate is 14.0%+/-6.3%(+1.5%)(-1.4%) of the average rate. If the total flux of active neutrinos is additionally constrained to have no asymmetry, the nu(e) asymmetry is found to be 7.0%+/-4.9%(+1.3%)(-1.2%). A global solar neutrino analysis in terms of matter-enhanced oscillations of two active flavors strongly favors the large mixing angle solution.

Published
2002
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72. Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory.

Author

Ahmad QR, Allen RC, Andersen TC, D Anglin J, Barton JC, Beier EW, Bercovitch M, Bigu J, Biller SD, Black RA, Blevis I, Boardman RJ, Boger J, Bonvin E, Boulay MG, Bowler MG, Bowles TJ, Brice SJ, Browne MC, Bullard TV, Bühler G, Cameron J, Chan YD, Chen HH, Chen M, Chen X, Cleveland BT, Clifford ET, Cowan JH, Cowen DF, Cox GA, Dai X, Dalnoki-Veress F, Davidson WF, Doe PJ, Doucas G, Dragowsky MR, Duba CA, Duncan FA, Dunford M, Dunmore JA, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Ferraris AP, Ford RJ, Formaggio JA, Fowler MM, Frame K, Frank ED, Frati W, Gagnon N, Germani JV, Gil S, Graham K, Grant DR, Hahn RL, Hallin AL, Hallman ED, Hamer AS, Hamian AA, Handler WB, Haq RU, Hargrove CK, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Hepburn JD, Heron H, Hewett J, Hime A, Howe M, Hykawy JG, Isaac MC, Jagam P, Jelley NA, Jillings C, Jonkmans G, Kazkaz K, Keener PT, Klein JR, Knox AB, Komar RJ, Kouzes R, Kutter T, Kyba CC, Law J, Lawson IT, Lay M, Lee HW, Lesko KT, Leslie JR, Levine I, Locke W, Luoma S, Lyon J, Majerus S, Mak HB, Maneira J, Manor J, Marino AD, McCauley N, McDonald AB, McDonald DS, McFarlane K, McGregor G, Meijer Drees R, Mifflin C, Miller GG, Milton G, Moffat BA, Moorhead M, Nally CW, Neubauer MS, Newcomer FM, Ng HS, Noble AJ, Norman EB, Novikov VM, O'Neill M, Okada CE, Ollerhead RW, Omori M, Orrell JL, Oser SM, Poon AW, Radcliffe TJ, Roberge A, Robertson BC, Robertson RG, Rosendahl SS, Rowley JK, Rusu VL, Saettler E, Schaffer KK, Schwendener MH, Schülke A, Seifert H, Shatkay M, Simpson JJ, Sims CJ, Sinclair D, Skensved P, Smith AR, Smith MW, Spreitzer T, Starinsky N, Steiger TD, Stokstad RG, Stonehill LC, Storey RS, Sur B, Tafirout R, Tagg N, Tanner NW, Taplin RK, Thorman M, Thornewell PM, Trent PT, Tserkovnyak YI, Van Berg R, Van de Water RG, Virtue CJ, Waltham CE, Wang JX, Wark DL, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wittich P, Wouters JM, and Yeh M

Abstract

Observations of neutral-current nu interactions on deuterium in the Sudbury Neutrino Observatory are reported. Using the neutral current (NC), elastic scattering, and charged current reactions and assuming the standard 8B shape, the nu(e) component of the 8B solar flux is phis(e) = 1.76(+0.05)(-0.05)(stat)(+0.09)(-0.09)(syst) x 10(6) cm(-2) s(-1) for a kinetic energy threshold of 5 MeV. The non-nu(e) component is phi(mu)(tau) = 3.41(+0.45)(-0.45)(stat)(+0.48)(-0.45)(syst) x 10(6) cm(-2) s(-1), 5.3sigma greater than zero, providing strong evidence for solar nu(e) flavor transformation. The total flux measured with the NC reaction is phi(NC) = 5.09(+0.44)(-0.43)(stat)(+0.46)(-0.43)(syst) x 10(6) cm(-2) s(-1), consistent with solar models.

Published
2002
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