Author: "Y. Giraud-Héraud" / Topic: law.invention - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Y. Giraud-Héraud"' showing total 46 results

Start Over Author "Y. Giraud-Héraud" Topic law.invention

46 results on '"Y. Giraud-Héraud"'

1. Detection chain and electronic readout of the QUBIC instrument

Author: L. M. Mundo, S. Marnieros, D. Fracchia, A. Mattei, R. Puddu, S. Spinelli, A. Passerini, Federico Nati, V. Gilles, K. Ganga, B. García, Giuseppe D'Alessandro, F. Wicek, P. A. R. Ade, Diego Harari, J. Bonaparte, F. Pezzotta, Massimo Gervasi, F. Incardona, M. E. García Redondo, M. Platino, L. Grandsire, J. D. Murphy, Damien Rambaud, E. Jules, M. Wright, C. Kristukat, L. Dumoulin, E. Olivieri, B. Maffei, Alessandro Paiella, J. Bonis, J.-P. Thermeau, D. Prêle, H. Pastoriza, Michel Piat, M. Gómez Berisso, M. Perciballi, F. Piacentini, D. Burke, Mark McCulloch, A. Zullo, L. H. Arnaldi, Giampaolo Pisano, A. Baù, L.P. Ferreyro, C. Perbost, C. Duca, C. Franceschet, L. Mousset, J. A. Murphy, D. Viganò, Gustavo E. Romero, Martin Giard, Emory F. Bunn, Alessandro Schillaci, Gregory S. Tucker, P. Chanial, L. A. Montier, M.-A. Bigot-Sazy, Alejandro Almela, A. Etchegoyen, Marco Bersanelli, E. Rasztocky, M. Gaspard, Nicola Vittorio, Mario Zannoni, A. Pelosi, S. Azzoni, P. de Bernardis, T. D. Hoang, S. Banfi, W. Marty, A. Mennella, S. Scully, M. M. Gamboa Lerena, Elia S. Battistelli, Andrea Tartari, J.G. Alberro, D. Gayer, Alessandro Coppolecchia, C. Oriol, J.M. Salum, J. Aumont, D. Bennett, S. Loucatos, Silvia Masi, Marcin Gradziel, S. Dheilly, François Pajot, A.C. Cobos Cerutti, C. Chapron, A. Fasciszewski, J.-Ch. Hamilton, M. González, M. Tomasi, Créidhe O'Sullivan, Laurent Bergé, G. Amico, D. Buzi, A.D. Supanitsky, D. Auguste, Gianluca Polenta, Francesco Cavaliere, P. Ringegni, G. Stankowiak, Luca Lamagna, Steve Torchinsky, L. Mele, Andrew May, Peter Timbie, F. Columbro, F. Voisin, C. Tucker, J. Kaplan, B. Bélier, R. Charlassier, M. R. Hampel, G. de Gasperis, C. Scóccola, Lucio Piccirillo, Thibaut Louis, Sophie Henrot-Versille, D. Melo, J.-Ph. Bernard, M. Stolpovskiy, Y. Giraud-Héraud, M. De Leo, M. De Petris, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris - Site de Paris (OP), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Zmuidzinas, Jonas, Gao, Jian-Rong, Stankowiak, G, Piat, M, Battistelli, E, D'Alessandro, G, de Bernardis, P, De Petris, M, González, M, Grandsire, L, Hamilton, J, Hoang, T, Masi, S, Marnieros, S, Mennella, A, Mousset, L, O'Sullivan, C, Prêle, D, Tartari, A, Thermeau, J, Torchinsky, S, Voisin, F, Zannoni, M, Ade, P, Alberro, J, Almela, A, Amico, G, Arnaldi, L, Auguste, D, Aumont, J, Azzoni, S, Banfi, S, Bélier, B, Baù, A, Bennett, D, Bergé, L, Bernard, J, Bersanelli, M, Bigot-Sazy, M, Bonaparte, J, Bonis, J, Bunn, E, Burke, D, Buzi, D, Cavaliere, F, Chanial, P, Chapron, C, Charlassier, R, Cobos Cerutti, A, Columbro, F, Coppolecchia, A, de Gasperis, G, De Leo, M, Dheilly, S, Duca, C, Dumoulin, L, Etchegoyen, A, Fasciszewski, A, Ferreyro, L, Fracchia, D, Franceschet, C, Gamboa Lerena, M, Ganga, K, García, B, García Redondo, M, Gaspard, M, Gayer, D, Gervasi, M, Giard, M, Gilles, V, Giraud-Héraud, Y, Gómez Berisso, M, Gradziel, M, Hampel, M, Harari, D, Henrot-Versillé, S, Incardona, F, Jules, E, Kaplan, J, Kristukat, C, Lamagna, L, Loucatos, S, Louis, T, Maffei, B, Marty, W, Mattei, A, May, A, Mcculloch, M, Mele, L, Melo, D, Montier, L, Mundo, L, Murphy, J, Nati, F, Olivieri, E, Oriol, C, Paiella, A, Pajot, F, Passerini, A, Pastoriza, H, Pelosi, A, Perbost, C, Perciballi, M, Pezzotta, F, Piacentini, F, Piccirillo, L, Pisano, G, Platino, M, Polenta, G, Puddu, R, Rambaud, D, Ringegni, P, Romero, G, Rasztocky, E, Salum, J, Schillaci, A, Scóccola, C, Scully, S, Spinelli, S, Stolpovskiy, M, Supanitsky, A, Timbie, P, Tomasi, M, Tucker, G, Tucker, C, Viganò, D, Vittorio, N, Wicek, F, Wright, M, and Zullo, A
Subjects: QUBIC, Cosmic microwave background, 02 engineering and technology, CMB, SQUID, 7. Clean energy, Superconducting QUantum Interference Device, 030218 nuclear medicine & medical imaging, law.invention, TDM, FIS/05 - ASTRONOMIA E ASTROFISICA, 03 medical and health sciences, 020210 optoelectronics & photonics, 0302 clinical medicine, Optics, Application-specific integrated circuit, law, Cosmic Microwave Background, B-modes, 0202 electrical engineering, electronic engineering, information engineering, Noise-equivalent power, [PHYS]Physics [physics], Physics, TES, business.industry, Bolometer, Time constant, CMB instrumentation, bolometric interferometry, Transition Edge Sensor, Interferometry, Transition edge sensor, business
Abstract: International audience; The Q and U Bolometric Interferometer for Cosmology (QUBIC) Technical Demonstrator (TD) aiming to shows the feasibility of the combination of interferometry and bolometric detection. The electronic readout system is based on an array of 128 NbSi Transition Edge Sensors cooled at 350mK readout with 128 SQUIDs at 1K controlled and amplified by an Application Specific Integrated Circuit at 40K. This readout design allows a 128:1 Time Domain Multiplexing. We report the design and the performance of the detection chain in this paper. The technological demonstrator unwent a campaign of test in the lab. Evaluation of the QUBIC bolometers and readout electronics includes the measurement of I-V curves, time constant and the Noise Equivalent Power. Currently the mean Noise Equivalent Power is ~ 2 x 10-16W= p √Hz
Published: 2020

2. Calibration of QUBIC: The Q and U bolometric interferometer for cosmology

Author: D. Melo, Peter T. Timbie, G. Polenta, L. Mele, S. Loucatos, K. Ganga, Alejandro Almela, Luca Lamagna, W. Marty, Gustavo E. Romero, Giuseppe D'Alessandro, D. Burke, Emory F. Bunn, H. Pastoriza, D. Harari, L. Montier, E. Rasztocky, F. Piacentini, C. Duca, L.P. Ferreyro, L. M. Mundo, D. Prêle, Andrew May, C. Perbost, J.-Ph. Bernard, M. Stolpovskiy, P. de Bernardis, Francesco Cavaliere, J. A. Murphy, P. A. R. Ade, M. Platino, Federico Nati, Créidhe O'Sullivan, M. Wright, Cristian Franceschet, M. Gómez Berisso, M. Giard, M. Gaspard, P. Chanial, E. Olivieri, Alessandro Schillaci, D. Fracchia, C. Kristukat, Y. Giraud-Héraud, A. Baù, L. Mousset, J. Kaplan, C. Oriol, A. Mattei, F. Columbro, J. Bonaparte, M. E. García Redondo, B. Bélier, Nicola Vittorio, L. Grandsire, Silvia Masi, J. Bonis, C. Tucker, G. Amico, Federico Pezzotta, M. Piat, J.-P. Thermeau, F. Incardona, D. Buzi, A. Mennella, Marcin Gradziel, A.D. Supanitsky, J. D. Murphy, Gregory S. Tucker, E. Jules, A. Passerini, V. Gilles, J.M. Salum, S. Dheilly, M. Perciballi, M. M. Gamboa Lerena, F. Voisin, S. A. Torchinsky, Alessandro Paiella, Damien Rambaud, Bruno Maffei, J.G. Alberro, A.C. Cobos Cerutti, C. Chapron, L. Bergé, Mark McCulloch, S. Marnieros, S. Azzoni, D. Auguste, Giampaolo Pisano, F. Pajot, F. Wicek, R. Puddu, Elia S. Battistelli, D. Gayer, S. Banfi, L. H. Arnaldi, J. Aumont, Massimo Gervasi, M. De Leo, D. Bennett, A. Zullo, S. Spinelli, M. Tomasi, Lucio Piccirillo, C. Scóccola, M. De Petris, A. Etchegoyen, Thibaut Louis, Marco Bersanelli, Sophie Henrot-Versille, Mario Zannoni, M.-A. Bigot-Sazy, M. González, A. Pelosi, S. Scully, P. Ringegni, G. Stankowiak, J.-Ch. Hamilton, L. Dumoulin, A. Tartari, D. Viganò, R. Charlassier, M. R. Hampel, G. de Gasperis, Bruce Rafael Mellado Garcia, Alessandro Coppolecchia, A. Fasciszewski, Zmuidzinas, Jonas, Murphy, J, Burke, D, Gamboa Lerena, M, Hamilton, J, Mousset, L, De Petris, M, O'Sullivan, C, Torchinsky, S, Ade, P, Alberro, J, Almela, A, Amico, G, Arnaldi, L, Auguste, D, Aumont, J, Azzoni, S, Banfi, S, Bélier, B, Battistelli, E, Baù, A, Bennett, D, Bergé, L, Bernard, J, Bersanelli, M, Bigot-Sazy, M, Bonaparte, J, Bonis, J, Bunn, E, Buzi, D, Cavaliere, F, Chanial, P, Chapron, C, Charlassier, R, Cobos Cerutti, A, Columbro, F, Coppolecchia, A, D'Alessandro, G, De Gasperis, G, De Leo, M, Dheilly, S, Duca, C, Dumoulin, L, Etchegoyen, A, Fasciszewski, A, Ferreyro, L, Fracchia, D, Franceschet, C, Ganga, K, García, B, García Redondo, M, Gaspard, M, Gayer, D, Gervasi, M, Giard, M, Gilles, V, Giraud-Heraud, Y, Grandsire, L, Gómez Berisso, M, González, M, Gradziel, M, Hampel, M, Harari, D, Henrot-Versillé, S, Incardona, F, Jules, E, Kaplan, J, Kristukat, C, Lamagna, L, Loucatos, S, Louis, T, Maffei, B, Marty, W, Mattei, A, May, A, Mcculloch, M, Mele, L, Melo, D, Mennella, A, Montier, L, Mundo, L, Nati, F, Olivieri, E, Oriol, C, Paiella, A, Pajot, F, Passerini, A, Pastoriza, H, Pelosi, A, Perbost, C, Perciballi, M, Pezzotta, F, Piacentini, F, Piccirillo, L, Pisano, G, Platino, M, Polenta, G, Prêle, D, Puddu, R, Rambaud, D, Rasztocky, E, Ringegni, P, Romero, G, Salum, J, Scóccola, C, Schillaci, A, Scully, S, Spinelli, S, Stankowiak, G, Stolpovskiy, M, Supanitsky, A, Tartari, A, Thermeau, J, Timbie, P, Tomasi, M, Tucker, G, Tucker, C, Viganò, D, Vittorio, N, Voisin, F, Wicek, F, Wright, M, Zannoni, M, Zullo, A, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Observatoire de Paris - Site de Paris (OP), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), and Gao, Jian-Rong
Subjects: QUBIC, Instrumentation, interferometer, Cosmic microwave background, measurement methods, CDM, cosmic background radiation: polarization, 02 engineering and technology, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, 7. Clean energy, 01 natural sciences, Cosmology, law.invention, 010309 optics, FIS/05 - ASTRONOMIA E ASTROFISICA, Optics, bolometer, B-mode polarisation, law, 0103 physical sciences, Cosmic Microwave Background, Calibration, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], measure: spectral, detector: design, data-analysis, Physics, instrumentation, calibration, TES, business.industry, Instrument Data, Bolometer, transition edge sensor, Astrophysics::Instrumentation and Methods for Astrophysics, 021001 nanoscience & nanotechnology, sensitivity, Interferometry, B-mode, Transition edge sensor, 0210 nano-technology, business
Abstract: International audience; QUBIC (a Q and U Bolometric Interferometer for Cosmology) is a next generation cosmology experiment designed to detect the B-mode polarisation of the Cosmic Microwave Background (CMB). A B-mode detection is hard evidence of Inflation in the ΛCDM model. QUBIC aims to accomplish this by combining novel technologies to achieve the sensitivity required to detect the faint B-mode signal. QUBIC uses technologies such as a rotating half-wave plate, cryogenics, interferometric horns with self-calibration switches and transition edge sensor bolometers. A Technical Demonstrator (TD) is currently being calibrated in APC in Paris before observations in Argentina in 2021. As part of the calibration campaign, the spectral response of the TD is measured to test and validate QUBIC's spectro-imaging capability. This poster gives an overview of the methods used to measure the spectral response and a comparison of the instrument data with theoretical predictions and optical simulations.
Published: 2020

3. Simulations and performance of the QUBIC optical beam combiner

Author: Emory F. Bunn, M.-A. Bigot-Sazy, Y. Giraud-Héraud, A. Zullo, Alessandro Buzzelli, M. Gómez Berisso, M. Giard, F. Voisin, J. Aumont, L. Mele, N. Bleurvacq, L. Dumoulin, L. Grandsire, Nicola Vittorio, Giuseppe D'Alessandro, P. Ringegni, F. Piacentini, Peter T. Timbie, P. Chanial, D. Viganò, M. C. Medina, Alessandro Schillaci, Créidhe O'Sullivan, Laurent Bergé, G. Polenta, Gabriele Coppi, Steve Torchinsky, P. Battaglia, L. Montier, X. Garrido, J.-P. Thermeau, Massimo Gervasi, V. Truongcanh, Rocco D'Agostino, M. Gaspard, R. Puddu, J. Bonaparte, Luca Lamagna, S. Spinelli, C. Chapron, G. de Gasperis, Victor Haynes, A. Etchegoyen, S. Loucatos, Gregory S. Tucker, L. M. Mundo, Marco Bersanelli, A. Lowitz, G. Bordier, E. Guerrard, Mario Zannoni, A. Pelosi, G. Amico, Vladimir V. Luković, D. Buzi, E. Olivieri, R. Luterstein, S. Scully, D. Prêle, H. Pastoriza, A. Mattei, J. Kaplan, F. Columbro, A. Gault, A. Passerini, F. Pajot, D. Harari, Silvia Masi, A. Di Donato, B. Watson, M. Stolpovskiy, Gustavo E. Romero, E. Bréelle, R. Charlassier, J. Bonis, Elia S. Battistelli, D. Gayer, M. De Leo, A. Tartari, Peter A. R. Ade, J. D. Murphy, B. Bélier, S. Banfi, Alessandro Paiella, P. de Bernardis, S. Vanneste, Andrew May, M. De Petris, G. Barbarán, Giampaolo Pisano, Francesco Cavaliere, Cristian Franceschet, D. T. Hoang, Matthieu Tristram, D. Burke, F. Incardona, F. Suarez, J. A. Murphy, C. Kristukat, Marcin Gradziel, F. Couchot, Bruce Rafael Mellado Garcia, A. Mennella, Alessandro Coppolecchia, M. M. Gamboa Lerena, Andrei Korotkov, A. Fasciszewski, D. Bennett, Damien Rambaud, M. González, Bruno Maffei, F. Wicek, Mark McCulloch, S. Marnieros, O. Perdereau, Maria Salatino, D. Auguste, J.-Ch. Hamilton, C. Perbost, C. Scóccola, Carole Tucker, Federico Pezzotta, M. Piat, E. Jules, Lucio Piccirillo, Thibaut Louis, Sophie Henrot-Versille, Simon J. Melhuish, A. Baù, J.-Ph. Bernard, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), 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), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Zmuidzinas, Jonas, Gao, Jian-Rong, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), 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), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Zmuidzinas, J, Gao, JR, Zullo, A, Wicek, F, Watson, B, Voisin, F, Vittorio, N, Viganò, D, Vanneste, S, Tucker, G, Tucker, C, Truongcanh, V, Tristram, M, Torchinsky, S, Timbie, P, Thermeau, J, Tartari, A, Suarez, F, Stolpovskiy, M, Spinelli, S, Scóccola, C, Schillaci, A, Salatino, M, Romero, G, Ringegni, P, Rambaud, D, Puddu, R, Prêle, D, Polenta, G, Pisano, G, Piccirillo, L, Piat, M, Piacentini, F, Pezzotta, F, Perdereau, O, Perbost, C, Pelosi, A, Pastoriza, H, Passerini, A, Pajot, F, Paiella, A, Olivieri, E, Murphy, J, Mundo, L, Montier, L, Melhuish, S, Medina, M, Mele, L, Mcculloch, M, May, A, Mattei, A, Masi, S, Marnieros, S, Maffei, B, Luterstein, R, Lukovic, V, Lowitz, A, Louis, T, Loucatos, S, Lamagna, L, Kristukat, C, Korotkov, A, Kaplan, J, Jules, E, Incardona, F, Hoang, D, Henrot-Versillé, S, Haynes, V, Harari, D, Grandsire, L, Gradziel, M, González, M, Gómez Berisso, M, Giraud-Héraud, Y, Giard, M, Gervasi, M, Gault, A, Gaspard, M, Garrido, X, García, B, Gamboa Lerena, M, Franceschet, C, Fasciszewski, A, Etchegoyen, A, Dumoulin, L, Di Donato, A, de Gasperis, G, de Bernardis, P, D’Alessandro, G, D'Agostino, R, Couchot, F, Coppolecchia, A, Coppi, G, Columbro, F, Charlassier, R, Chapron, C, Chanial, P, Cavaliere, F, Buzzelli, A, Buzi, D, Bunn, E, Bréelle, E, Bordier, G, Bonis, J, Bonaparte, J, Bleurvacq, N, Bigot-Sazy, M, Bersanelli, M, Bernard, J, Bergé, L, Bennett, D, Bélier, B, Baù, A, Battistelli, E, Battaglia, P, Barbarán, G, Banfi, S, Aumont, J, Auguste, D, Amico, G, Ade, P, Hamilton, J, Zannoni, M, Mennella, A, De Leo, M, De Petris, M, Scully, S, Guerrard, E, Gayer, D, Burke, D, and O'Sullivan, C
Subjects: cosmological model, higher-order, QUBIC, Cosmic microwave background, CMB, Interference (wave propagation), 01 natural sciences, 7. Clean energy, Cosmology, B-mode: primordial, law.invention, law, B-modes, Anisotropy, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Physics, Applied Mathematics, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science Applications1707 Computer Vision and Pattern Recognition, bolometric interferometry, Condensed Matter Physics, Physical optics, physical optics, Interferometry, Horn antenna, detector: performance, polarization: anisotropy, Astrophysics::High Energy Astrophysical Phenomena, interferometer, interference, Astrophysics::Cosmology and Extragalactic Astrophysics, model: optical, programming, 010309 optics, FIS/05 - ASTRONOMIA E ASTROFISICA, Optics, 0103 physical sciences, Electronic, Optical and Magnetic Materials, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Electrical and Electronic Engineering, Astrophysics::Galaxy Astrophysics, Millimeter, Submillimeter, Far-Infrared, Detectors, Instrumentation, Cosmic Microwave Background, Polarization, business.industry, Bolometer, gravitational radiation: primordial, optics, detector: sensitivity, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Electronic, Optical and Magnetic Materials, cosmic background radiation: anisotropy
Abstract: QUBIC, the Q & U Bolometric Interferometer for Cosmology, is a novel ground-based instrument that aims to measure the extremely faint B-mode polarisation anisotropy of the cosmic microwave background at intermediate angular scales (multipoles of = 30 − 200). Primordial B-modes are a key prediction of Inflation as they can only be produced by gravitational waves in the very early universe. To achieve this goal, QUBIC will use bolometric interferometry, a technique that combines the sensitivity of an imager with the immunity to systematic effects of an interferometer. It will directly observe the sky through an array of back-to-back entry horns whose beams will be superimposed using a cooled quasioptical beam combiner. Images of the resulting interference fringes will be formed on two focal planes, each tiled with transition-edge sensors, cooled down to 320 mK. A dichroic filter placed between the optical combiner and the focal planes will select two frequency bands (centred at 150 GHz and 220 GHz), one frequency per focal plane. Polarization modulation will be achieved using a cold stepped half-wave plate (HWP) and polariser in front of the sky-facing horns. The full QUBIC instrument is described elsewhere1,2,3,4; in this paper we will concentrate in particular on simulations of the optical combiner (an off-axis Gregorian imager) and the feedhorn array. We model the optical performance of both the QUBIC full module and a scaled-down technological demonstrator which will be used to validate the full instrument design. Optical modelling is carried out using full vector physical optics with a combination of commercial and in-house software. In the high-frequency channel we must be careful to consider the higher-order modes that can be transmitted by the horn array. The instrument window function is used as a measure of performance and we investigate the effect of, for example, alignment and manufacturing tolerances, truncation by optical components and off-axis aberrations. We also report on laboratory tests carried on the QUBIC technological demonstrator in advance of deployment to the observing site in Argentina.
Published: 2018

4. Performance of NbSi transition-edge sensors readout with a 128 MUX factor for the QUBIC experiment

Author: L. M. Mundo, M. Gómez Berisso, M. Giard, A. Tartari, Nicola Vittorio, A. Mattei, F. Columbro, R. Charlassier, L. Grandsire, A. Mennella, A. Pelosi, M. M. Gamboa Lerena, D. Bennett, Andrei Korotkov, M. González, F. Piacentini, D. Burke, C. Perbost, J. A. Murphy, P. Chanial, E. Olivieri, Damien Rambaud, B. Watson, Giampaolo Pisano, N. Bleurvacq, Maria Salatino, D. Auguste, H. Pastoriza, D. Harari, G. Barbarán, Bruno Maffei, F. Wicek, F. Couchot, L. Dumoulin, Peter A. R. Ade, J. Bonaparte, Giuseppe D'Alessandro, S. Loucatos, A. Gault, A. Lowitz, P. Battaglia, Mark McCulloch, S. Marnieros, P. Ringegni, A. Zullo, G. Amico, D. Viganò, S. Banfi, C. Scóccola, Carole Tucker, Créidhe O'Sullivan, Laurent Bergé, Andrew May, D. Buzi, M. C. Medina, L. Mele, J.-Ph. Bernard, M. Stolpovskiy, M. Piat, Emory F. Bunn, M.-A. Bigot-Sazy, F. Voisin, Bruce Rafael Mellado Garcia, C. Kristukat, O. Perdereau, S. Maestre, Y. Giraud-Héraud, J. D. Murphy, F. Incardona, Alessandro Coppolecchia, F. Suarez, Peter T. Timbie, C. Chapron, Alessandro Schillaci, Alessandro Paiella, W. Marty, G. Polenta, E. Bréelle, A. Fasciszewski, J. Aumont, R. Puddu, S. Spinelli, L. Montier, D. T. Hoang, Massimo Gervasi, Federico Pezzotta, F. Pajot, Elia S. Battistelli, D. Gayer, Simon J. Melhuish, V. Truongcanh, A. Baù, M. Gaspard, J.-P. Thermeau, Luca Lamagna, A. Etchegoyen, Marcin Gradziel, A. Buzzelli, Francesco Cavaliere, Lucio Piccirillo, Marco Bersanelli, J. Kaplan, Mario Zannoni, D. Prêle, Thibaut Louis, Sophie Henrot-Versille, A. Passerini, G. De Gasperis, B. Bélier, S. Scully, S. Vanneste, Victor Haynes, Gregory S. Tucker, M. De Leo, R. Luterstein, M. De Petris, Gustavo E. Romero, P. de Bernardis, J.-Ch. Hamilton, Rocco D'Agostino, E. Jules, Gabriele Coppi, Steve Torchinsky, Silvia Masi, A. Di Donato, X. Garrido, E. Guerrard, Vladimir V. Luković, G. Bordier, Cristian Franceschet, Matthieu Tristram, J. Bonis, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-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), Laboratoire de l'Accélérateur Linéaire (LAL), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Zmuidzinas, J, Gao, JR, Salatino, M, Suarez, F, Bennett, D, Murphy, J, Ade, P, Thermeau, J, Zullo, A, Zannoni, M, Wicek, F, Watson, B, Vittorio, N, Viganò, D, Vanneste, S, Tucker, G, Tucker, C, Truongcanh, V, Tristam, M, Timbie, P, Tartari, A, Stolpovskiy, M, Spinelli, S, Scully, S, Scóccola, C, Schillaci, A, Romero, G, Ringegni, P, Puddu, R, Polenta, G, Pisano, G, Piccirillo, L, Piacentini, F, Pezzotta, F, Perdereau, O, Perbost, C, Pelosi, A, Pastoriza, H, Passerini, A, Pajot, F, Paiella, A, Olivieri, E, O'Sullivan, C, Mundo, L, Mennella, A, Melhuish, S, Mele, L, Medina, M, Mcculloch, M, May, A, Mattei, A, Masi, S, Maffei, B, Luterstein, R, Lukovic, V, Lowitz, A, Louis, T, Loucatos, S, Lamagna, L, Kristukat, C, Korotkov, A, Kaplan, J, Jules, E, Incardona, F, Haynes, V, Harari, D, Hamilton, J, Guerrard, E, Grandsire, L, Gradziel, M, González, M, Gómez Berisso, M, Giraud-Héraud, Y, Giard, M, Gervasi, M, Gayer, D, Gault, A, Gaspard, M, Garrido, X, García, B, Gamboa, M, Franceschet, C, Fasciszewski, A, Etchegoyen, A, Dumoulin, L, Di Donato, A, De Petris, M, De Leo, M, de Gasperis, G, de Bernardis, P, D’Alessandro, G, D'Agostino, R, Couchot, F, Coppolecchia, A, Coppi, G, Columbro, F, Charlassier, R, Chanial, P, Cavaliere, F, Buzzelli, A, Buzi, D, Burke, D, Bunn, E, Bréelle, E, Bordier, G, Bonis, J, Bonaparte, J, Bleurvacq, N, Bigot-Sazy, M, Bersanelli, M, Bernard, J, Bergé, L, Baù, A, Battistelli, E, Battaglia, P, Barbarán, G, Banfi, S, Aumont, J, Auguste, D, Amico, G, Voisin, F, Henrot-Versillé, S, Torchinsky, S, Rambaud, D, Prêle, D, Piat, M, Montier, L, Marty, W, Marnieros, S, Maestre, S, Hoang, D, Chapron, C, Bélier, B, Zmuidzinas, Jonas, Gao, Jian-Rong, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: the QUBIC experiment, Time-Domain Multiplexing, Integrated circuit, SiGe Application-Specific Integrated Circuit, 01 natural sciences, 7. Clean energy, Multiplexing, Multiplexer, law.invention, FIS/05 - ASTRONOMIA E ASTROFISICA, Optics, law, Transition-Edge Sensor, 0103 physical sciences, Cosmic Microwave Background, Astronomical interferometer, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, 010303 astronomy & astrophysics, Physics, business.industry, Bolometric Interferometry, Detector, Bolometer, Millimeter, Submillimeter, Far-Infrared, Detectors, Instrumentation, Cosmic Microwave Background, CMB instrumentation, SiGe ApplicationSpecific Integrated Circuit, Superconducting QUantum Interference Device, TimeDomain Multiplexing, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications1707 Computer Vision and Pattern Recognition, Applied Mathematics, Electrical and Electronic Engineering, Interferometry, Superconducting QUantum Interference Devices, Transition edge sensor, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: International audience; QUBIC (the Q and U Bolometric Interferometer for Cosmology) is a ground-based experiment which seeks to improve the current constraints on the amplitude of primordial gravitational waves. It exploits the unique technique, among Cosmic Microwave Background experiments, of bolometric interferometry, combining together the sensitivity of bolometric detectors with the control of systematic effects typical of interferometers. QUBIC will perform sky observations in polarization, in two frequency bands centered at 150 and 220 GHz, with two kilo-pixel focal plane arrays of NbSi Transition-Edge Sensors (TES) cooled down to 350 mK. A subset of the QUBIC instrument, the so called QUBIC Technological Demonstrator (TD), with a reduced number of detectors with respect to the full instrument, will be deployed and commissioned before the end of 2018. The voltage-biased TES are read out with Time Domain Multiplexing and an unprecedented multiplexing (MUX) factor equal to 128. This MUX factor is reached with two-stage multiplexing: a traditional one exploiting Superconducting QUantum Interference Devices (SQUIDs) at 1K and a novel SiGe Application-Specific Integrated Circuit (ASIC) at 60 K. The former provides a MUX factor of 32, while the latter provides a further 4. Each TES array is composed of 256 detectors and read out with four modules of 32 SQUIDs and two ASICs. A custom software synchronizes and manages the readout and detector operation, while the TES are sampled at 780 Hz (100kHz/128 MUX rate). In this work we present the experimental characterization of the QUBIC TES arrays and their multiplexing readout chain, including time constant, critical temperature, and noise properties.
Published: 2018

5. QUBIC: the Q and U bolometric interferometer for cosmology

Author: Y. Giraud-Héraud, E. Bréelle, P. A. R. Ade, A. Zullo, P. Ringegni, A. Mennella, M. M. Gamboa Lerena, D. Bennett, M. González, Emory F. Bunn, Francesco Cavaliere, R. Puddu, M. De Leo, L. Montier, M. Stolpovskiy, M. Gómez Berisso, M. Giard, C. Perbost, L. Grandsire, Peter T. Timbie, Cristian Franceschet, Matthieu Tristram, Gustavo E. Romero, E. Jules, Simon J. Melhuish, S. Spinelli, A. Baù, G. de Gasperis, J.-Ph. Bernard, G. Bordier, G. Polenta, M. De Petris, P. de Bernardis, A. Lowitz, Nicola Vittorio, E. Guerrard, P. Battaglia, M. Piat, Rocco D'Agostino, O. Perdereau, Lucio Piccirillo, Vladimir V. Luković, Bruce Rafael Mellado Garcia, F. Piacentini, J. Aumont, Massimo Gervasi, D. Prêle, Thibaut Louis, Alessandro Coppolecchia, Sophie Henrot-Versille, S. Loucatos, R. Charlassier, L. M. Mundo, L. Dumoulin, J. Kaplan, P. Chanial, J. D. Murphy, A. Fasciszewski, J. Bonaparte, C. Kristukat, S. Vanneste, Alessandro Paiella, Gabriele Coppi, Silvia Masi, A. Di Donato, Federico Pezzotta, L. Mele, B. Bélier, Steve Torchinsky, D. Viganò, Maria Salatino, D. Auguste, E. Olivieri, A. Mattei, J.-Ch. Hamilton, H. Pastoriza, D. Harari, F. Columbro, G. Amico, M.-A. Bigot-Sazy, A. Passerini, D. Buzi, C. Scóccola, Carole Tucker, G. Barbarán, C. Chapron, N. Bleurvacq, J. Bonis, F. Couchot, Andrei Korotkov, R. Luterstein, A. Tartari, V. Truongcanh, M. Gaspard, F. Voisin, F. Incardona, Damien Rambaud, A. Etchegoyen, B. Watson, Giampaolo Pisano, Marco Bersanelli, Bruno Maffei, Alessandro Schillaci, F. Wicek, Mario Zannoni, A. Pelosi, F. Suarez, A. Gault, Mark McCulloch, S. Marnieros, S. Scully, Créidhe O'Sullivan, Laurent Bergé, S. Banfi, D. Burke, J. A. Murphy, D. T. Hoang, Marcin Gradziel, Alessandro Buzzelli, J.-P. Thermeau, Victor Haynes, X. Garrido, Gregory S. Tucker, Giuseppe D'Alessandro, M. C. Medina, F. Pajot, Elia S. Battistelli, Luca Lamagna, D. Gayer, Andrew May, Laboratoire de l'Accélérateur Linéaire (LAL), 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), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Zmuidzinas J.,Gao J.-R., Ade, P, Zullo, A, Zannoni, M, Wicek, F, Watson, B, Voisin, F, Vittorio, N, Viganò, D, Vanneste, S, Tucker, G, Tucker, C, Truongcanh, V, Tristram, M, Torchinsky, S, Timbie, P, Thermeau, J, Tartari, A, Suarez, F, Stolpovskiy, M, Spinelli, S, Scully, S, Scóccola, C, Schillaci, A, Salatino, M, Romero, G, Ringegni, P, Rambaud, D, Puddu, R, Prêle, D, Polenta, G, Pisano, G, Piccirillo, L, Piat, M, Piacentini, F, Pezzotta, F, Perdereau, O, Perbost, C, Pelosi, A, Pastoriza, H, Passerini, A, Pajot, F, Paiella, A, Olivieri, E, Murphy, J, Mundo, L, Montier, L, Mennella, A, Melhuish, S, Mele, L, Medina, M, Mcculloch, M, May, A, Mattei, A, Masi, S, Marnieros, S, Maffei, B, Luterstein, R, Lukovic, V, Lowitz, A, Louis, T, Loucatos, S, Lamagna, L, Bennett, D, Kristukat, C, Korotkov, A, Kaplan, J, Jules, E, Incardona, F, Hoang, D, Harari, D, Hamilton, J, Guerrard, E, Grandsire, L, Gradziel, M, González, M, Gómez Berisso, M, Giraud-Héraud, Y, Giard, M, Gervasi, M, Gayer, D, Gault, A, Gaspard, M, Garrido, X, García, B, Gamboa Lerena, M, Franceschet, C, Fasciszewski, A, Etchegoyen, A, Henrot-Versillé, S, Haynes, V, Dumoulin, L, Di Donato, A, De Petris, M, De Leo, M, de Gasperis, G, de Bernardis, P, D’Alessandro, G, D'Agostino, R, Couchot, F, Coppolecchia, A, Coppi, G, Columbro, F, Charlassier, R, Chapron, C, Chanial, P, Cavaliere, F, Buzzelli, A, Buzi, D, Burke, D, Bunn, E, Bréelle, E, Bordier, G, Bonis, J, Bonaparte, J, Bleurvacq, N, Bigot-Sazy, M, Bersanelli, M, Bernard, J, Bergé, L, Bélier, B, Baù, A, Battistelli, E, Battaglia, P, Barbarán, G, Banfi, S, Aumont, J, Auguste, D, Amico, G, O'Sullivan, C, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Zmuidzinas, Jonas, Gao, Jian-Rong, Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)
Subjects: B-modes, bolometric interferometry, CMB, QUBIC, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications1707 Computer Vision and Pattern Recognition, Applied Mathematics, Electrical and Electronic Engineering, cosmic microwave background, Cosmic microwave background, Interference (wave propagation), 01 natural sciences, 7. Clean energy, law.invention, 010309 optics, FIS/05 - ASTRONOMIA E ASTROFISICA, Optics, law, 0103 physical sciences, Electronic, Optical and Magnetic Materials, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Millimeter, Submillimeter, Far-Infrared, Detectors, Instrumentation, Cosmic Microwave Background, Polarization, Physics, millimetre-wave, Gravitational wave, business.industry, Detector, Bolometer, Polarizer, interferometry, Interferometry, Dichroic filter, business, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: QUBIC, the Q & U Bolometric Interferometer for Cosmology, is a novel ground-based instrument that has been designed to measure the extremely faint B-mode polarisation anisotropy of the cosmic microwave background at intermediate angular scales (multipoles of 𝑙 = 30 − 200). Primordial B-modes are a key prediction of Inflation as they can only be produced by gravitational waves in the very early universe. To achieve this goal, QUBIC will use bolometric interferometry, a technique that combines the sensitivity of an imager with the systematic error control of an interferometer. It will directly observe the sky through an array of 400 back-to-back entry horns whose signals will be superimposed using a quasi-optical beam combiner. The resulting interference fringes will be imaged at 150 and 220 GHz on two focal planes, each tiled with NbSi Transition Edge Sensors, cooled to 320 mK and read out with time-domain multiplexing. A dichroic filter placed between the optical combiner and the focal planes will select the two frequency bands. A very large receiver cryostat will cool the optical and detector stages to 40 K, 4 K, 1 K and 320 mK using two pulse tube coolers, a novel 4He sorption cooler and a double-stage 3He/4He sorption cooler. Polarisation modulation and selection will be achieved using a cold stepped half-wave plate (HWP) and polariser, respectively, in front of the sky-facing horns. A key feature of QUBIC’s ability to control systematic effects is its ‘self-calibration’ mode where fringe patterns from individual equivalent baselines can be compared. When observing, however, all the horns will be open simultaneously and we will recover a synthetic image of the sky in the I, Q and U Stokes’ parameters. The synthesised beam pattern has a central peak of approximately 0.5 degrees in width, with secondary peaks further out that are damped by the 13-degree primary beam of the horns. This is Module 1 of QUBIC which will be installed in Argentina, near the city of San Antonio de los Cobres, at the Alto Chorrillos site (4869 m a.s.l.), Salta Province. Simulations have shown that this first module could constrain the tensor-to-scalar ratio down to σ(r) = 0.01 after a two-year survey. We aim to add further modules in the future to increase the angular sensitivity and resolution of the instrument. The QUBIC project is proceeding through a sequence of steps. After an initial successful characterisation of the detection chain, a technological demonstrator is being assembled to validate the full instrument design and to test it electrically, thermally and optically. The technical demonstrator is a scaled-down version of Module 1 in terms of the number of detectors, input horns and pulse tubes and a reduction in the diameter of the combiner mirrors and filters, but is otherwise similar. The demonstrator will be upgraded to the full module in 2019. In this paper we give an overview of the QUBIC project and instrument.
Published: 2018

6. Optical modelling and analysis of the Q and U bolometric interferometer for cosmology

Author: Mikhail Stolpovskiy, Emory F. Bunn, Federico Pezzotta, O. Rigaut, M.-A. Bigot-Sazy, A.-A. Drilien, J.D. Murphy, Simon J. Melhuish, Martin Gamboa, Laurence P. Sadwick, Alessandro Schillaci, A. Baù, N. Holtzer, Nathanaël Bleurvac, A. Mennella, F. Voisin, Beatriz García, X. Garrido, E. Guerrard, Giuseppe D' Alessandro, Vladimir V. Luković, R. Luterstein, D. Burke, D. Prêle, D. Bennett, Alberto Etchegoyen, C. Kristukat, Delphine Néel, Paolo de Bernardis, J. Bonaparte, Massimo Gervasi, Alessandro Paiella, L. Montier, M. González, P. Battaglia, Y. Giraud-Héraud, A. Zullo, Giampaolo Pisano, Maria Salatino, D. Auguste, E. Jules, M. Gaspard, Olivier Perdereau, D. Viganò, P. Ringegni, A. Gault, M. Gómez Berisso, F. Piacentini, Jean-Philippe Bernard, J. Kaplan, F. Incardona, Cristian Franceschet, Matthieu Tristram, D. T. Hoang, Lucio Piccirillo, Jonathan Aumont, François Couchot, B. Bélier, F. Suarez, E. Olivieri, P. Chanial, C. Scóccola, S. Banfi, Carole Tucker, Sophie Henrot-Versille, G. Amico, H. Pastoriza, Robert A. Watson, G. de Gasperis, Marcin Gradziel, Nicola Vittorio, D. Harari, D. Buzi, G. Bordier, G. Barbarán, J.-P. Thermeau, Victor Haynes, Créidhe O'Sullivan, Laurent Bergé, T. Louis, J. Bonis, V. Truongcanh, L. Grandsire, Marco De Petris, Peter T. Timbie, Andrei Korotkov, Marco Bersanelli, G. Polenta, Mario Zannoni, Damien Rambaud, Gustavo E. Romero, A. Pelosi, F. Wicek, Mark McCulloch, S. Scully, M. De Leo, L. Dumoulin, Francesco Cavaliere, Alessandro Buzzelli, A. Lowitz, C. Perbost, Alessandro Coppolecchia, François Pajot, A. Fasciszewski, Bruno Maffei, Martin Giard, Elia S. Battistelli, D. Gayer, Tianxin Yang, Gregory S. Tucker, M. C. Medina, A. Passerini, Jean Christophe Hamilton, A. Tartari, L. M. Mundo, Michel Piat, S. Marnieros, Eimante Kalinauskaite, A. Mattei, J. Lande, F. Columbro, R. Puddu, S. Spinelli, Andrew May, Luca Lamagna, E. Bréelle, J. Anthony Murphy, Rocco D'Agostino, S. Loucatos, Gabriele Coppi, Steve Torchinsky, Silvia Masi, A. Di Donato, C. Chapron, R. Charlassier, L. Mele, Sadwick L.P.,Yang T., Burke, D, Gayer, D, Kalinauskaite, E, O'Sullivan, C, Murphy, J, Scully, S, De Petris, M, De Leo, M, Mennella, A, Torchinsky, S, Zannoni, M, Amico, G, Auguste, D, Aumont, J, Banfi, S, Barbaran, G, Battaglia, P, Battistelli, E, Bau, A, Belier, B, Bennett, D, Berge, L, Bernard, J, Bersanelli, M, Bigot-Sazy, M, Bleurvac, N, Bonaparte, J, Bonis, J, Bordier, G, Breelle, E, Bunn, E, Buzi, D, Buzzelli, A, Cavaliere, F, Chanial, P, Chapron, C, Charlassier, R, Columbro, F, Coppi, G, Coppolecchia, A, Couchot, F, D'Alessandro, G, D'Agostino, R, De Bernardis, P, De Gasperis, G, Di Donato, A, Drilien, A, Dumoulin, L, Etchegoyen, A, Fasciszewski, A, Franceschet, C, Gamboa-Lerena, M, Garcia, B, Garrido, X, Gaspard, M, Gault, A, Gervasi, M, Giard, M, Giraud-Heraud, Y, Gomez Berisso, M, Gonzalez, M, Gradziel, M, Grandsire, L, Guerrard, E, Hamilton, J, Harari, D, Haynes, V, Henrot-Versille, S, Hoang, D, Holtzer, N, Incardona, F, Jules, E, Kaplan, J, Korotkov, A, Kristukat, C, Lamagna, L, Lande, J, Loucatos, S, Louis, T, Lowitz, A, Lukovic, V, Luterstein, R, Maffei, B, Marnieros, S, Masi, S, Mattei, A, May, A, Mcculloch, M, Medina, M, Mele, L, Melhuish, S, Mundo, L, Montier, L, Neel, D, Olivieri, E, Paiella, A, Pajot, F, Passerini, A, Pastoriza, H, Pelosi, A, Perbost, C, Perdereau, O, Pezzotta, F, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Polenta, G, Prele, D, Puddu, R, Rambaud, D, Rigaut, O, Ringegni, P, Romero, G, Salatino, M, Schillaci, A, Scoccola, C, Spinelli, S, Stolpovskiy, M, Suarez, F, Tartari, A, Thermeau, J, Timbie, P, Tristram, M, Truongcanh, V, Tucker, G, Tucker, C, Vigano, D, Vittorio, N, Voisin, F, Watson, B, Wicek, F, Zullo, A, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), 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), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), 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), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: Cosmic microwave background, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, 01 natural sciences, 7. Clean energy, Radio spectrum, law.invention, Optics, law, 0103 physical sciences, B-modes, Electronic, Optical Modelling, Black-body radiation, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Optical and Magnetic Materials, Electrical and Electronic Engineering, 010306 general physics, 010303 astronomy & astrophysics, Polarisation, Physics, business.industry, Applied Mathematics, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, bolometric interferometry, Cosmology, Simulation, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications1707 Computer Vision and Pattern Recognition, Image plane, Redshift, Interferometry, B-mode, Millimeter, business
Abstract: International audience; Remnant radiation from the early universe, known as the Cosmic Microwave Background (CMB), has been redshifted and cooled, and today has a blackbody spectrum peaking at millimetre wavelengths. The QUBIC (Q&U Bolometric Interferometer for Cosmology) instrument is designed to map the very faint polaristion structure in the CMB. QUBIC is based on the novel concept of bolometric interferometry in conjunction with synthetic imaging. It will have a large array of input feedhorns, which creates a large number of interferometric baselines. The beam from each feedhorn is passed through an optical combiner, with an off-axis compensated Gregorian design, to allow the generation of the synthetic image. The optical-combiner will operate in two frequency bands (150 and 220 GHz with 25% and 18.2 % bandwidth respectively) while cryogenically cooled TES bolometers provide the sensitivity required at the image plane. The QUBIC Technical Demonstrator (TD), a proof of technology instrument that contains 64 input feed-horns, is currently being built and will be installed in the Alto Chorrillos region of Argentina. The plan is then for the full QUBIC instrument (400 feed-horns) to be deployed in Argentina and obtain cosmologically significant results. In this paper we will examine the output of the manufactered feed-horns in comparison to the nominal design. We will show the results of optical modelling that has been performed in anticipation of alignment and calibration of the TD in Paris, in particular testing the validity of real laboratory environments. We show the output of large calibrator sources (50 ° full width haf max Gaussian beams) and the importance of accurate mirror definitions when modelling large beams. Finally we describe the tolerance on errors of the position and orientation of mirrors in the optical combiner.
Published: 2018

7. Thermal architecture for the QUBIC cryogenic receiver

Author: R. Charlassier, G. de Gasperis, J. Kaplan, M. Piat, X. Garrido, J. Bonaparte, M.-A. Bigot-Sazy, B. Bélier, P. Battaglia, F. Piacentini, Alessandro Buzzelli, D. Burke, N. Bleurvacq, Andrei Korotkov, R. Puddu, F. Voisin, C. Perbost, E. Guerrard, J. A. Murphy, S. Loucatos, S. Spinelli, S. Vanneste, Damien Rambaud, Peter A. R. Ade, Gustavo E. Romero, P. Chanial, Peter T. Timbie, G. Polenta, A. Lowitz, Vladimir V. Luković, Andrew May, J.-Ch. Hamilton, B. Watson, Bruno Maffei, F. Wicek, Bruce Rafael Mellado Garcia, P. de Bernardis, F. Couchot, A. Gault, E. Olivieri, H. Pastoriza, D. Harari, L. Dumoulin, J.-Ph. Bernard, M. Stolpovskiy, Alessandro Coppolecchia, Mark McCulloch, S. Marnieros, A. Mennella, F. Incardona, G. Barbarán, Francesco Cavaliere, M. M. Gamboa Lerena, D. Viganò, F. Suarez, S. Banfi, E. Bréelle, A. Fasciszewski, G. Bordier, L. M. Mundo, D. Bennett, Y. Giraud-Héraud, Federico Pezzotta, A. Passerini, M. González, J. Bonis, J. Aumont, J.-P. Thermeau, Alessandro Schillaci, A. Tartari, A. Mattei, M. Gómez Berisso, E. Jules, L. Mele, M. Giard, L. Grandsire, Gabriele Coppi, Steve Torchinsky, F. Columbro, O. Perdereau, P. Ringegni, Simon J. Melhuish, Massimo Gervasi, A. Baù, Nicola Vittorio, Rocco D'Agostino, M. De Leo, Lucio Piccirillo, Thibaut Louis, D. Prêle, Sophie Henrot-Versille, Maria Salatino, D. Auguste, M. De Petris, R. Luterstein, C. Scóccola, Carole Tucker, Silvia Masi, A. Di Donato, Giampaolo Pisano, G. Amico, Cristian Franceschet, Matthieu Tristram, D. Buzi, Emory F. Bunn, Créidhe O'Sullivan, Laurent Bergé, V. Truongcanh, M. Gaspard, A. Etchegoyen, Marco Bersanelli, Mario Zannoni, A. Pelosi, S. Scully, J. D. Murphy, Alessandro Paiella, C. Kristukat, A. Zullo, Gregory S. Tucker, F. Pajot, Elia S. Battistelli, D. Gayer, Giuseppe D'Alessandro, M. C. Medina, C. Chapron, D. T. Hoang, Marcin Gradziel, Luca Lamagna, Victor Haynes, L. Montier, Zmuidzinas, Jonas, Gao, Jian-Rong, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), 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), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), 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), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Zmuidzinas, J, Gao, JR, Tristram, M, Passerini, A, Franceschet, C, Scully, S, Ade, P, Zullo, A, Zannoni, M, Wicek, F, Watson, B, Voisin, F, Vittorio, N, Viganò, D, Vanneste, S, Tucker, G, Tucker, C, Truongcanh, V, Torchinsky, S, Timbie, P, Tartari, A, Suarez, F, Stolpovskiy, M, Spinelli, S, Scóccola, C, Salatino, M, Romero, G, Ringegni, P, Rambaud, D, Puddu, R, Prêle, D, Polenta, G, Pisano, G, Piacentini, F, Pezzotta, F, Perdereau, O, Perbost, C, Pelosi, A, Pastoriza, H, Pajot, F, Paiella, A, Olivieri, E, O'Sullivan, C, Murphy, J, Mundo, L, Montier, L, Mennella, A, Mele, L, Medina, M, Mcculloch, M, Mattei, A, Marnieros, S, Maffei, B, Luterstein, R, Lukovic, V, Lowitz, A, Louis, T, Loucatos, S, Lamagna, L, Kristukat, C, Korotkov, A, Kaplan, J, Jules, E, Incardona, F, Hoang, D, Henrot-Versillé, S, Haynes, V, Harari, D, Hamilton, J, Guerrard, E, Grandsire, L, Gradziel, M, González, M, Gómez Berisso, M, Giraud-Héraud, Y, Giard, M, Gervasi, M, Gayer, D, Gault, A, Gaspard, M, Garrido, X, García, B, Gamboa Lerena, M, Fasciszewski, A, Etchegoyen, A, Dumoulin, L, Di Donato, A, De Petris, M, De Leo, M, de Gasperis, G, D'Agostino, R, Couchot, F, Coppolecchia, A, Bennett, D, Burke, D, Columbro, F, Charlassier, R, Chanial, P, Cavaliere, F, Buzzelli, A, Buzi, D, Bunn, E, Bréelle, E, Bordier, G, Bonis, J, Bonaparte, J, Bleurvacq, N, Bigot-Sazy, M, Bersanelli, M, Bernard, J, Bergé, L, Bélier, B, Baù, A, Battistelli, E, Battaglia, P, Barbarán, G, Banfi, S, Aumont, J, Auguste, D, Amico, G, Thermeau, J, Schillaci, A, Piccirillo, L, Piat, M, Melhuish, S, Masi, S, de Bernardis, P, D'Alessandro, G, Coppi, G, Chapron, C, May, A, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)
Subjects: Cryostat, Physics - Instrumentation and Detectors, Cryogenics, Bolometric interferometry, QUBIC, interferometer, Cosmic microwave background, bolometric interferometry, cryogenics, experimental cosmology, heat switch, sorption cooler, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications1707 Computer Vision and Pattern Recognition, Applied Mathematics, Electrical and Electronic Engineering, FOS: Physical sciences, cosmic background radiation: polarization, 7. Clean energy, 01 natural sciences, law.invention, FIS/05 - ASTRONOMIA E ASTROFISICA, Optics, bolometer, law, 0103 physical sciences, Thermal, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Sorption cooler, 010306 general physics, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, Heat switch, business.industry, Bolometer, Detector, Instrumentation and Detectors (physics.ins-det), Polarization (waves), Experimental cosmology, Interferometry, cryogenics: design, B-mode, Millimeter, Submillimeter, Far-Infrared, Detectors, Instrumentation, Cryogenics, Cosmic Microwave Background, business, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: International audience; QUBIC, the QU Bolometric Interferometer for Cosmology, is a novel forthcoming instrument to measure the B-mode polarization anisotropy of the Cosmic Microwave Background. The detection of the B-mode signal will be extremely challenging; QUBIC has been designed to address this with a novel approach, namely bolometric interferometry. The receiver cryostat is exceptionally large and cools complex optical and detector stages to 40 K, 4 K, 1 K and 350 mK using two pulse tube coolers, a novel 4He sorption cooler and a double-stage 3He/4He sorption cooler. We discuss the thermal and mechanical design of the cryostat, modelling and thermal analysis, and laboratory cryogenic testing.
Published: 2018

8. QUBIC - the Q&U Bolometric Interferometer for Cosmology: A novel way to look at the polarized Cosmic Microwave Background

Author: M. Piat, A. Passerini, M. W. Ng, J. Rodriguez Martino, A. Ghribi, Alessandro Buzzelli, M. Giard, N. Bleurvacq, F. Piacentini, S. Melhuish, L. Mele, P. Chanial, J.-Ch. Hamilton, Maria Salatino, R. Puddu, L. Grandsire, J. Lande, Peter T. Timbie, Jonathan Aumont, Carole Tucker, B. Watson, Bruno Maffei, Andrei Korotkov, Damien Rambaud, A. Zullo, O. Rigaut, C. Perbost, Massimo Gervasi, Mark McCulloch, S. Marnieros, A. Baù, A. Lowitz, Giampaolo Pisano, D. Néel, G. Bordier, M. De Petris, P. Battaglia, N. Krachmalnicoff, L. Montier, A. Mennella, D. Cammilleri, O. Perdereau, Michele De Leo, Créidhe O'Sullivan, Cristian Franceschet, F. Incardona, D. Bennett, Peter A. R. Ade, D. Buzi, Victor Haynes, F. Couchot, F. Suarez, G. S. Tucker, N. Vittori, M. Tristram, D. Harari, Lucio Piccirillo, B. Bélier, Jean Kaplan, Sophie Henrot-Versille, S. Loucatos, Luca Lamagna, L. Dumoulin, Alessandro Paiella, Bruce Rafael Mellado Garcia, Alessandro Coppolecchia, F. Columbro, A. Tartari, D. Viganò, J. Brossard, Rocco D'Agostino, Andrew May, F. Pajot, Elia S. Battistelli, D. Gayer, L. Bergé, Silvia Masi, D. Burke, Marcin Gradziel, N. Holtzer, Gabriele Coppi, Steve Torchinsky, Giuseppe D'Alessandro, M. C. Medina, C. Chapron, A. Etchegoyen, Marco Bersanelli, Mario Zannoni, A. Pelosi, S. Scully, G. de Gasperis, Bigot-Sazy, J.-Ph. Bernard, A. Gault, S. Banfi, Vladimir V. Luković, Francesco Cavaliere, E. Bunn, D. Prêle, A. Murphy, F. Voisin, M. Stolpovskiy, Gustavo E. Romero, F. Del Torto, Y. Giraud-Héraud, P. de Bernardis, A. Schillaci, T. Decourcelle, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-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), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire de l'Accélérateur Linéaire (LAL), 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), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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 des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Mennella, A, Ade, P, Aumont, J, Banfi, S, Incardona, F, Battaglia, P, Battistelli, E, Baù, A, Bélier, B, Bennett, D, Bergé, L, Bernard, J, Bersanelli, M, Bigot-Sazy, M, Bleurvacq, N, Bordier, G, Brossard, J, Bunn, E, Burke, D, Buzi, D, Buzzelli, A, Cammilleri, D, Cavaliere, F, Chanial, P, Chapron, C, Columbro, F, Coppi, G, Coppolecchia, A, Couchot, F, D'Agostino, R, D'Alessandro, G, De Bernardis, P, De Gasperis, G, De Leo, M, De Petris, M, Decourcelle, T, Del Torto, F, Dumoulin, L, Etchegoyen, A, Franceschet, C, Garcia, B, Gault, A, Gayer, D, Gervasi, M, Ghribi, A, Giard, M, Giraud-Héraud, Y, Gradziel, M, Grandsire, L, Hamilton, J, Harari, D, Haynes, V, Henrot-Versillé, S, Holtzer, N, Kaplan, J, Korotkov, A, Krachmalnicoff, N, Lamagna, L, Lande, J, Loucatos, S, Lowitz, A, Lukovic, V, Maffei, B, Marnieros, S, Martino, J, Masi, S, May, A, Mcculloch, M, Medina, M, Mele, L, Melhuish, S, Montier, L, Murphy, A, Néel, D, Ng, M, O'Sullivan, C, Paiella, A, Pajot, F, Passerini, A, Pelosi, A, Perbost, C, Perdereau, O, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Prêle, D, Puddu, R, Rambaud, D, Rigaut, O, Romero, G, Salatino, M, Schillaci, A, Scully, S, Stolpovskiy, M, Suarez, F, Tartari, A, Timbie, P, Torchinsky, S, Tristram, M, Tucker, C, Tucker, G, Viganò, D, Vittori, N, Voisin, F, Watson, B, Zannoni, M, and Zullo, A
Subjects: cosmological model, interferometer, Cosmic microwave background, Cosmic background radiation, FOS: Physical sciences, 02 engineering and technology, cosmic background radiation, 01 natural sciences, 7. Clean energy, Cosmology, law.invention, 010309 optics, FIS/05 - ASTRONOMIA E ASTROFISICA, bolometer, law, 0103 physical sciences, Astronomical interferometer, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, Physics, polarization, Gravitational wave, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, gravitational radiation: primordial, Cosmic Microwave Background, Polarimetry, Interferometry, Bolometers, Astronomy, 021001 nanoscience & nanotechnology, Polarization (waves), sensitivity, calibration, Interferometry, duality, 0210 nano-technology, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: In this paper we describe QUBIC, an experiment that takes up the challenge posed by the detection of primordial gravitational waves with a novel approach, that combines the sensitivity of state-of-the art bolometric detectors with the systematic effects control typical of interferometers. The so-called "self-calibration" is a technique deeply rooted in the interferometric nature of the instrument and allows us to clean the measured data from instrumental effects. The first module of QUBIC is a dual band instrument (150 GHz and 220 GHz) that will be deployed in Argentina during the Fall 2018., Presented at the EPS Conference on High Energy Physics, Venice (Italy), 5-12 July 2017 Accepted for publication in conference proceedings
Published: 2017

9. Optical design and modelling of the QUBIC instrument, a next-generation quasi-optical bolometric interferometer for cosmology

Author: A. Ghribi, L. Montier, D. Cammileri, D. Burke, L. Grandsire, J. Brossard, Peter T. Timbie, J. A. Murphy, Créidhe O'Sullivan, Giampaolo Pisano, N. Bleurvacq, J. C. Hamilton, P. Battaglia, J. Kaplan, Emory F. Bunn, G. Bordier, Marco Bersanelli, Alessandro Schillaci, Mario Zannoni, M. Giard, J.-Ph. Bernard, S. Scully, B. Bélier, J. Lande, O. Rigaut, T. Decourcelle, Giuseppe D'Alessandro, M.-A. Bigot-Sazy, A. Mennella, D. Buzi, A. Gault, Cristian Franceschet, M. Piat, O. Perdereau, D. Prêle, D. Bennet, Victor Haynes, L. Dumoulin, S. Banfi, J. Martino, F. Voisin, Lucio Piccirillo, D. Viganò, Sophie Henrot-Versille, M. W. Ng, Y. Giraud-Héraud, Massimo Gervasi, Andrei Korotkov, Marcin Gradziel, F. Piacentini, Maria Salatino, P. Chanial, Damien Rambaud, Jonathan Aumont, Simon J. Melhuish, A. Baù, N. Holtzer, M. De Petris, Mark McCulloch, M. Stolpovskiy, F. Del Torto, S. Marnieros, Bruno Maffei, P. de Bernardis, F. Pajot, Elia S. Battistelli, D. Gayer, Francesco Cavaliere, Gregory S. Tucker, L. Bergé, Alessandro Coppolecchia, A. Lowitz, M. Tristram, C. Perbost, B. Watson, R. Puddu, F. Couchot, D. Néel, A. Passerini, A. Tartari, C. Chapron, Silvia Masi, Holland, WS, Scully, S, Burke, D, O'Sullivan, C, Gayer, D, Gradziel, M, Murphy, J, De Petris, M, Buzi, D, Zannoni, M, Mennella, A, Gervasi, M, Tartari, A, Maffei, B, Aumont, J, Banfi, S, Battaglia, P, Battistelli, E, Bau', A, Bélier, B, Bennet, D, Bergé, L, Bernard, J, Bersanelli, M, Bigot Sazy, M, Bleurvacq, N, Bordier, G, Brossard, J, Bunn, E, Cammileri, D, Cavaliere, F, Chanial, P, Chapron, C, Coppolecchia, A, Couchot, F, D'Alessandro, G, De Bernardis, P, Decourcelle, T, Del Torto, F, Dumoulin, L, Franceschet, C, Gault, A, Ghribi, A, Giard, M, Giraud Héraud, Y, Grandsire, L, Hamilton, J, Haynes, V, Henrot Versillé, S, Holtzer, N, Kaplan, J, Korotkov, A, Lande, J, Lowitz, A, Marnieros, S, Martino, J, Masi, S, Mcculloch, M, Melhuish, S, Montier, L, Néel, D, Ng, M, Pajot, F, Passerini, A, Perbost, C, Perdereau, O, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Prêle, D, Puddu, R, Rambaud, D, Rigaut, O, Salatino, M, Schillaci, A, Stolpovskiy, M, Timbie, P, Tristram, M, Tucker, G, Viganò, D, Voisin, F, and Watson, B
Subjects: Bolometric interferometry, QUBIC, Aperture, Cosmic microwave background, Condensed Matter Physic, Astrophysics::Cosmology and Extragalactic Astrophysics, CMB, 01 natural sciences, Cosmology, law.invention, 010309 optics, Telescope, FIS/05 - ASTRONOMIA E ASTROFISICA, symbols.namesake, Optics, law, 0103 physical sciences, Astronomical interferometer, Stokes parameters, Electrical and Electronic Engineering, Planck, 010303 astronomy & astrophysics, Physics, business.industry, Electronic, Optical and Magnetic Material, Astrophysics::Instrumentation and Methods for Astrophysics, B-modes, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications1707 Computer Vision and Pattern Recognition, Applied Mathematics, Applied Mathematic, Interferometry, FIS/01 - FISICA SPERIMENTALE, B-mode, symbols, business
Abstract: Big Bang cosmologies predict that the cosmic microwave background (CMB) contains faint temperature and polarisation anisotropies imprinted in the early universe. ESA's PLANCK satellite has already measured the temperature anisotropies1 in exquisite detail; the next ambitious step is to map the primordial polarisation signatures which are several orders of magnitude lower. Polarisation E-modes have been measured2 but the even-fainter primordial B-modes have so far eluded detection. Their magnitude is unknown but it is clear that a sensitive telescope with exceptional control over systematic errors will be required. QUBIC3 is a ground-based European experiment that aims to exploit the novel concept of bolometric interferometry in order to measure B-mode polarisation anisotropies in the CMB. Beams from an aperture array of corrugated horns will be combined to form a synthesised image of the sky Stokes parameters on two focal planes: one at 150 GHz the other at 220 GHz. In this paper we describe recent optical modelling of the QUBIC beam combiner, concentrating on modelling the instrument point-spread-function and its operation in the 220-GHz band. We show the effects of optical aberrations and truncation as successive components are added to the beam path. In the case of QUBIC, the aberrations introduced by off-axis mirrors are the dominant contributor. As the frequency of operation is increased, the aperture horns allow up to five hybrid modes to propagate and we illustrate how the beam pattern changes across the 25% bandwidth. Finally we describe modifications to the QUBIC optical design to be used in a technical demonstrator, currently being manufactured for testing in 2016.
Published: 2016

10. QUBIC: A Fizeau Interferometer Targeting Primordial B-Modes

Author: J.-Ph. Bernard, M.-A. Bigot-Sazy, Lucio Piccirillo, D. Buzi, J. Martino, F. Voisin, D. Prêle, Maria Salatino, J.-Ch. Hamilton, L. Montier, A. Mennella, L. Dumoulin, M. Giard, C. Perbost, F. Piacentini, D. Bennett, A. Lowitz, D. Viganò, Y. Giraud-Héraud, Francesco Cavaliere, Jonathan Aumont, Emory F. Bunn, P. Chanial, P. Battaglia, Gregory S. Tucker, N. Bleurvacq, J. Kaplan, G. Bordier, Massimo Gervasi, B. Bélier, T. Decourcelle, Alessandro Schillaci, Simon J. Melhuish, Cristian Franceschet, A. Baù, N. Holtzer, Andrei Korotkov, Damien Rambaud, Giuseppe D'Alessandro, Mark McCulloch, S. Marnieros, Silvia Masi, M. Piat, M. Stolpovskiy, F. Del Torto, P. de Bernardis, Giampaolo Pisano, C. Chapron, A. Ghribi, A. Gault, J. Lande, L. Grandsire, S. Banfi, Peter T. Timbie, D. Cammilleri, D. Néel, Victor Haynes, Marcin Gradziel, O. Rigaut, A. Passerini, A. Tartari, M. De Petris, M. W. Ng, Marco Bersanelli, Mario Zannoni, S. Scully, Anna Murphy, B. Watson, J. Brossard, Créidhe O'Sullivan, Laurent Bergé, Bruno Maffei, F. Pajot, Alessandro Coppolecchia, Elia S. Battistelli, D. Gayer, CSNSM INSTRU, 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 Sciences Nucléaires et de Sciences de la Matière (CSNSM PS1), Université Paris-Saclay-Univ. Paris-Sud-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Tartari, A, Aumont, J, Banfi, S, Battaglia, P, Battistelli, E, Bau', A, Bélier, B, Bennett, D, Bergé, L, Bernard, J, Bersanelli, M, Bigot Sazy, M, Bleurvacq, N, Bordier, G, Brossard, J, Bunn, E, Buzi, D, Cammilleri, D, Cavaliere, F, Chanial, P, Chapron, C, Coppolecchia, A, D’Alessandro, G, De Bernardis, P, Decourcelle, T, Del Torto, F, De Petris, M, Dumoulin, L, Franceschet, C, Gault, A, Gayer, D, Gervasi, M, Ghribi, A, Giard, M, Giraud Héraud, Y, Gradziel, M, Grandsire, L, Hamilton, J, Haynes, V, Holtzer, N, Kaplan, J, Korotkov, A, Lande, J, Lowitz, A, Maffei, B, Marnieros, S, Martino, J, Masi, S, Mcculloch, M, Melhuish, S, Mennella, A, Montier, L, Murphy, A, Néel, D, Ng, M, O’Sullivan, C, Pajot, F, Passerini, A, Perbost, C, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Prêle, D, Rambaud, D, Rigaut, O, Salatino, M, Schillaci, A, Scully, S, Stolpovskiy, M, Timbie, P, Tucker, G, Viganò, D, Voisin, F, Watson, B, and Zannoni, M
Subjects: Fizeau interferometer, Cosmic microwave background, Context (language use), 01 natural sciences, law.invention, FIS/05 - ASTRONOMIA E ASTROFISICA, Optics, law, Atomic and Molecular Physics, 0103 physical sciences, General Materials Science, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], 010306 general physics, 010303 astronomy & astrophysics, Polarisation, [PHYS]Physics [physics], Physics, B-mode, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Materials Science (all), business.industry, Emphasis (telecommunications), Bolometer, Interferometry, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], and Optics, Cosmic microwave background · Polarisation · B-mode, business, Multipole expansion, Sensitivity (electronics)
Abstract: Q and U Bolometric Interferometer for Cosmology (QUBIC) is a Fizeau interferometer sensitive to linear polarisation, to be deployed at the Antarctic station of Dome C. This experiment in its final configuration will be operated at 97, 150 and 220GHz and is intended to target CMB primordial B-modes in a multipole window 20 < ℓ< 150. A sensitivity of r= 0.05 (95% CL) can be reached by the first module alone, after 2years of operation. Here we review in particular its working principles, and we show how the QUBIC interferometric configuration can be considered equivalent to a pupil-plane filtered imaging system. In this context, we show how our instrument can be self-calibrated. Finally, we conclude by showing an overview of the first dual-band module (150/220GHz), which will serve also as a demonstrator for the subsequent units, and review the technological choices we made for each subsystem, with particular emphasis on the detection system.
Published: 2016

11. Impact of particles on the Planck HFI detectors: Ground-based measurements and physical interpretation

Author: Francois-Xavier Désert, Y. Giraud-Héraud, Philippe Camus, M. Piat, Alessandro Monfardini, A. Miniussi, W. Holmes, E. Bréele, A. Sauvé, A. Coulais, Noël Coron, James J. Bock, A. Catalano, A. Pelissier, M. Charra, M. I. Martínez, Locke D. Spencer, B. P. Crill, W. C. Jones, Y. Atik, D. Santos, M. Chabot, C. Renault, L. Fauvet, Alain Benoit, J. F. Macías-Pérez, Rashmikant V. Sudiwala, J.-M. Lamarre, F. Pajot, O. Guillaudin, Peter A. R. Ade, C. Rosset, Guillaume Patanchon, Jean-Loup Puget, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), HELFA - Hélium : du fondamental aux applications, Institut Néel (NEEL), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Cryo - Cryogénie, Institut de Physique Nucléaire d'Orsay (IPNO), 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), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS Paris)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Centre National d'Études Spatiales [Toulouse] (CNES)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), APC - Cosmologie, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), PLANCK, PLANCK-HFI, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Hélium : du fondamental aux applications (NEEL - HELFA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Cryogénie (NEEL - Cryo), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG ), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (HELFA), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Cryogénie (Cryo), 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), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), and Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Electromagnetic spectrum, Astrophysics::High Energy Astrophysical Phenomena, Cosmic background radiation, FOS: Physical sciences, Cosmic ray, Astrophysics, cosmic background radiation, 01 natural sciences, 7. Clean energy, law.invention, cosmic rays, law, 0103 physical sciences, Cosmic rays, Instrumentation: detectors, Methods: data analysis, Space vehicles: instruments, Astronomy and Astrophysics, Space and Planetary Science, space vehicles: instruments, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), QB, Physics, 010308 nuclear & particles physics, instrumentation: detectors, Bolometer, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, methods: data analysis, Computational physics, Glitch, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], 13. Climate action, Millimeter, Astrophysics - Instrumentation and Methods for Astrophysics, Noise (radio)
Abstract: The Planck High Frequency Instrument (HFI) surveyed the sky continuously from August 2009 to January 2012. Its noise and sensitivity performance were excellent, but the rate of cosmic ray impacts on the HFI detectors was unexpectedly high. Furthermore, collisions of cosmic rays with the focal plane produced transient signals in the data (glitches) with a wide range of characteristics. A study of cosmic ray impacts on the HFI detector modules has been undertaken to categorize and characterize the glitches, to correct the HFI time-ordered data, and understand the residual effects on Planck maps and data products. This paper presents an evaluation of the physical origins of glitches observed by the HFI detectors. In order to better understand the glitches observed by HFI in flight, several ground-based experiments were conducted with flight-spare HFI bolometer modules. The experiments were conducted between 2010 and 2013 with HFI test bolometers in different configurations using varying particles and impact energies. The bolometer modules were exposed to 23 MeV protons from the Orsay IPN TANDEM accelerator, and to $^{241}$Am and $^{244}$Cm $\alpha$-particle and $^{55}$Fe radioactive X-ray sources. The calibration data from the HFI ground-based preflight tests were used to further characterize the glitches and compare glitch rates with statistical expectations under laboratory conditions. Test results provide strong evidence that the dominant family of glitches observed in flight are due to cosmic ray absorption by the silicon die substrate on which the HFI detectors reside. Glitch energy is propagated to the thermistor by ballistic phonons, while there is also a thermal diffusion contribution. The implications of these results for future satellite missions, especially those in the far-infrared to sub-millimetre and millimetre regions of the electromagnetic spectrum, are discussed., Comment: 11 pages, 13 figures
Published: 2014

12. Characterization and Physical Explanation of Energetic Particles on Planck HFI Instrument

Author: Alain Benoit, J.-M. Lamarre, Peter A. R. Ade, A. Pelissier, A. Catalano, Y. Giraud-Héraud, D. Santos, B. P. Crill, E. Bréele, A. Sauvé, Locke D. Spencer, C. Rosset, F.-X. Désert, Guillaume Patanchon, Alessandro Monfardini, W. Holmes, M. Charra, F. Pajot, Rashmikant V. Sudiwala, Noël Coron, L. Fauvet, Y. Atik, J. F. Macías-Pérez, A. Coulais, O. Guillaudin, Philippe Camus, M. Piat, A. Miniussi, C. Renault, M. I. Martínez, W. C. Jones, James J. Bock, Jean-Loup Puget, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Cryogénie (Cryo), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), APC - Cosmologie, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Hélium : du fondamental aux applications (HELFA), PLANCK, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), School of Physics and Astronomy [Cardiff], Cardiff University, Institut d'astrophysique spatiale (IAS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Hélium : du fondamental aux applications (NEEL - HELFA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), California Institute of Technology (CALTECH), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Cryogénie (NEEL - Cryo), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG ), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), European Space Research and Technology Centre (ESTEC), Agence Spatiale Européenne = European Space Agency (ESA), Department of Physics, Princeton University (DPPU), Princeton University, Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), HELFA - Hélium : du fondamental aux applications, Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Cryo - Cryogénie, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris
Subjects: [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, 7. Clean energy, law.invention, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], symbols.namesake, law, Thermal, General Materials Science, Planck, Instrumentation and Methods for Astrophysics (astro-ph.IM), media_common, Physics, Range (particle radiation), Spacecraft, business.industry, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, Condensed Matter Physics, Atomic and Molecular Physics, and Optics, Computational physics, Sky, symbols, business, Astrophysics - Instrumentation and Methods for Astrophysics, Noise (radio)
Abstract: The Planck High Frequency Instrument (HFI) has been surveying the sky continuously from the second Lagrangian point (L2) between August 2009 and January 2012. It operates with 52 high impedance bolometers cooled at 100mK in a range of frequency between 100 GHz and 1THz with unprecedented sensivity, but strong coupling with cosmic radiation. At L2, the particle flux is about 5 $cm^{-2} s^{-1}$ and is dominated by protons incident on the spacecraft. Protons with an energy above 40MeV can penetrate the focal plane unit box causing two different effects: glitches in the raw data from direct interaction of cosmic rays with detectors (producing a data loss of about 15% at the end of the mission) and thermal drifts in the bolometer plate at 100mK adding non-gaussian noise at frequencies below 0.1Hz. The HFI consortium has made strong efforts in order to correct for this effect on the time ordered data and final Planck maps. This work intends to give a view of the physical explanation of the glitches observed in the HFI instrument in-flight. To reach this goal, we performed several ground-based experiments using protons and $\alpha$ particles to test the impact of particles on the HFI spare bolometers with a better control of the environmental conditions with respect to the in-flight data. We have shown that the dominant part of glitches observed in the data comes from the impact of cosmic rays in the silicon die frame supporting the micro-machinced bolometric detectors propagating energy mainly by ballistic phonons and by thermal diffusion. The implications of these results for future satellite missions will be discussed., Comment: LTD-15 Conference
Published: 2014

13. Neutron background measurements in the Underground Laboratory of Modane

Author: C. Pastor, Y. Giraud-Héraud, V. Chazal, L. Vagneron, M. De Jesus, B. Chambon, A. Stutz, D. Drain, R. Brissot, J.F. Cavaignac, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), EDELWEISS, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Dark matter, Bolometer, Monte Carlo method, Astronomy and Astrophysics, Scintillator, 01 natural sciences, 7. Clean energy, law.invention, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Nuclear physics, law, Neutron flux, 0103 physical sciences, Neutron cross section, Neutron, Detectors and Experimental Techniques, Nuclear Experiment, 010306 general physics, Spontaneous fission
Abstract: Measurements of the background neutron environment, at a depth of 1780 m (4800 mwe) in the Underground Laboratory of Modane (L.S.M.) are reported. Using a 6Li liquid scintillator, the energy spectrum of the fast neutron flux has been determined. Monte Carlo calculations of the (α, n) and spontaneous fission processes in the surrounding rock has been performed and compared to the experimental result. In addition, using two 3He neutron counters, the thermal neutron flux has been measured.
Published: 1998

14. [Untitled]

Author: J. Soudée, P. Pari, M. Chapellier, D. Broszkiewicz, and Y. Giraud-Héraud
Subjects: Materials science, Condensed matter physics, Doping, Bolometer, chemistry.chemical_element, Germanium, Decoupling (cosmology), Condensed Matter Physics, Molecular physics, Atomic and Molecular Physics, and Optics, law.invention, chemistry, law, Electrical resistivity and conductivity, Condensed Matter::Superconductivity, Magnet, Thermal, General Materials Science, Neutron
Abstract: We have measured thermal properties of Neutron Transmutation Doped Ge (type #23 from E. E. Haller) at very low temperatures (down to 20 mK). Both R versus T characteristics and thermal decoupling were considered. We show that, for our sample, the thermal decoupling can be well described with the hot electron model. Our results are consistent with those obtained for other doping concentrations NTD Ge. Finally, we compare the two decoupling mechanisms (electron-phonon and phonon-bath) and show that they are comparable in magnitude for standard running conditions of bolometers.
Published: 1998

15. Properties of NTD #23 Ge sensors and RuO2 films as thermal sensors for bolometers

Author: J. Soudée, Y. Giraud-Héraud, M. Chapellier, G. Chardin, and P. Pari
Subjects: Thermal sensors, Materials science, Field (physics), business.industry, Bolometer, Electron, Condensed Matter Physics, Thermal conduction, Heat capacity, Atomic and Molecular Physics, and Optics, law.invention, law, Thermal, Particle, Optoelectronics, General Materials Science, business
Abstract: We have studied the thermal behavior of NTD #23 Ge samples and RuO2 films at temperatures from 20 to 100 mK. The electrical and thermal properties have been compared for both sensors. An original method to determine whether the electrical field or the hot electrons are responsible for the electrical response is described. In addition, this method measures the heat capacity of the electrons. Studying bolometers, a significant difference is observed between electrically and particle induced heat pulses.
Published: 1993

16. An efficient phase-shifting scheme for bolometric additive interferometry

Author: R. Charlassier, A. Ghribi, Y. Giraud-Héraud, M. Piat, J. Kaplan, D. Prêle, J.-Ch. Hamilton, E. Bréelle, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), APC - Cosmologie, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris
Subjects: [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Cosmic microwave background, FOS: Physical sciences, Astrophysics, 01 natural sciences, law.invention, 010309 optics, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], symbols.namesake, Optics, law, 0103 physical sciences, Stokes parameters, Linear combination, 010303 astronomy & astrophysics, Physics, business.industry, Gravitational wave, Astrophysics (astro-ph), Bolometer, Detector, Astronomy and Astrophysics, Polarization (waves), Interferometry, Space and Planetary Science, symbols, business
Abstract: Context: Most upcoming CMB polarization experiments will use direct imaging to search for the primordial gravitational waves through the B-modes. Bolometric interferometry is an appealing alternative to direct imaging that combines the advantages of interferometry in terms of systematic effects handling and those of bolometric detectors in terms of sensitivity. Aims: We calculate the signal from a bolometric interferometer in order to investigate its sensitivity to the Stokes parameters paying particular attention to the choice of the phase-shifting scheme applied to the input channels in order to modulate the signal. Methods: The signal is expressed as a linear combination of the Stokes parameter visibilities whose coefficients are functions of the phase-shifts. Results: We show that the signal to noise ratio on the reconstructed visibilities can be maximized provided the fact that the phase-shifting scheme is chosen in a particular way called coherent summation of equivalent baselines. As a result, a bolometric interferometer is competitive with an imager having the same number of horns, but only if the coherent summation of equivalent baselines is performed. We confirm our calculations using a Monte-Carlo simulation. We also discuss the impact of the uncertainties on the relative calibration between bolometers and propose a way to avoid this systematic effect., Comment: 8 pages, 6 figures, submitted to A&A
Published: 2009

17. A study of the general characteristics of proton-antiproton collisions at √s=0.2 to 0.9 TeV

Author: H. G. Moser, G. Busetto, C. Bacci, A. Bezaguet, D. Linglin, H. Faissner, Christopher Seez, A. Astbury, E. Tscheslog, Daniel J. Smith, James Rohlf, G. Walzel, O. C. Allkofer, Teresa Rodrigo, Jean-Pierre Merlo, R. Bonino, A. Moulin, P. I. P. Kalmus, G. Maurin, J. Garvey, K. Bos, D. Samyn, S. Tether, C. Markou, C. Rubbia, W. van de Guchte, M. Pimiä, J. Dorenbosch, E. Eisenhandler, G. Bauer, P. Erhard, G. Sajot, M. Schröder, Sergio Cittolin, J.P. Vialle, I. F. Fensome, Paraskevas Sphicas, V. O'Dell, D. Schinzel, P. Biddulph, Stefano Veneziano, A. van Dijk, J. Sass, K. Eggert, R. J. Apsimon, X. Wu, I. Zacharov, F. Szoncso, W. von Schlippe, Alessandro Bettini, B. Buschbeck, J. P. Debrion, M. Botlo, A. Schwartz, G. Thompson, R. Leuchs, L. Naumann, Margret Fincke-Keeler, A. Caner, I. Siotis, L. Taylor, G.F. Cox, P. Casoli, W.J. Haynes, Tejinder Virdee, J. P. Revol, P. Cennini, M. Nikitas, A. Geiser, Steve McMahon, J. P. Mendiburu, Francesco Lacava, V. Vuillemin, Carmen Albajar, C. Zaccardelli, D. Joyce, Anton Taurok, H. Dibon, M. G. Albrow, S. Beingessner, W. G. Scott, John A Coughlan, T. Moers, M. Yvert, Veikko Karimäki, Murrough Landon, T. C. Bacon, E. Radermacher, G. Pancheri, Guido Ciapetti, N. Bains, Christian Ghiglino, I. ten Have, Hans Reithler, Jorma Tuominiemi, Anna Teresa Meneguzzo, Th. Müller, Dave Charlton, Claudia J. Stubenrauch, S. Lammel, A. Gonidec, D. Kryn, Aleandro Nisati, T. Redelberger, W. Jank, E. F. Clayton, Pierluigi Zotto, A. Ferrando, M. Jimack, G. Salvini, A. Böhrer, J. P. Porte, M. Preischl, E. Pietarinen, M. A. Marquina, Daniel Denegri, R. Prosi, A. Diciaccio, J. D. Dowell, T. Fuess, Ritva Kinnunen, B. Mours, M. Markytan, Felicitas Pauss, M. Ikeda, Filippo Ceradini, J. Vrana, T. P. Shah, J. Colas, I. Wingerter, J. Kroll, L. Zanello, W. Kienzle, A. Norton, F. Cavanna, G. Piano Mortari, K. Ankoviak, David B. Cline, L. Fortson, M. Degiorgi, H. Bohn, C.-E. Wulz, R. Conte, L. Dobrzynski, G. Jorat, Jonathan M. Gregory, Peter Lipa, M. Lindgren, Alain Givernaud, D. Dau, M. Della Negra, B. Andrieu, F. J. Diez Hedo, S. Geer, P. Nedelec, Akram Khan, P. Colas, Nicolas Ellis, T. C. Meyer, S. Levegrün, Y. Giraud-Héraud, A. Kernan, K. Morgan, E. Petrolo, Richard Keeler, K. Wacker, M. Mohammadi, Manfred Krammer, Konstanty Sumorok, D. J. Holthuizen, S. Centro, M. Demoulin, I. R. Kenyon, Dave Robinson, A. Placci, and B. Aubert
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Proton, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, 7. Clean energy, 01 natural sciences, Charged particle, law.invention, Momentum, Nuclear physics, Transverse plane, law, Antiproton, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Collider, Particle Physics - Experiment
Abstract: The general characteristics of inelastic proton-antiproton collisions at the CERN SPS Collider are studied with the UA1 detector using magnetic and calorimetric analysis. Results are presented on charged particle multiplicities and transverse and longitudinal momenta, and on total transverse energy distributions at centre of mass energies ranging from 0.2 to 0.9 TeV.
Published: 1990

18. Probing MACHOs by observation of M 31 pixel lensing with the 1.5 m Loiano telescope

Author: G. Ingrosso, Giovanni Covone, Gaetano Scarpetta, Ph. Jetzer, A. A. Nucita, Francesco Strafella, Martin Dominik, Andrew Gould, F. De Paolis, S. Calchi Novati, Y. Giraud-Héraud, Luigi Mancini, Calchi Novati, S., Covone, Giovanni, de Paolis, F., Dominik, M., Giraud Héraud, Y., Ingrosso, G., Jetzer, P., Mancini, L., Nucita, A., Scarpetta, G., Strafella, F., Gould, A., APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), CALCHI NOVATI, S, Covone, G, DE PAOLIS, Francesco, Dominik, M, GIRAUD HRAUD, Y, Ingrosso, Gabriele, Jetzer, Ph, Mancini, L, Nucita, Achille, Scarpetta, G, Strafella, Francesco, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Physique Corpusculaire et Cosmologie - Collège de France (PCC), and Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Gravitational lensing, FOS: Physical sciences, Astrophysics, Gravitational microlensing, 01 natural sciences, law.invention, Telescope, Galactic halo, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], astro-ph, law, 0103 physical sciences, 010303 astronomy & astrophysics, Galaxy: Halo, Physics, Pixel, 010308 nuclear & particles physics, Astrophysics (astro-ph), Astronomy and Astrophysics, Galaxy, Stars, Variable source, Gravitational lens, Space and Planetary Science, Galaxies: M31
Abstract: We analyse a series of pilot observations in order to study microlensing of (unresolved) stars in M31 with the 1.5m Loiano telescope, including observations on both identified variable source stars and reported microlensing events. We also look for previously unknown variability and discover a nova. We discuss an observing strategy for an extended campaign with the goal of determining whether MACHOs exist or whether all microlensing events are compatible with lens stars in M31., Accepted for publication as a research Note in Astronomy & Astrophysics
Published: 2007

19. The BRAIN CMB polarization experiment

Author: R. Pons, Mario Zannoni, M. Giard, S. Peterzen, G. Sironi, Silvia Masi, J. Bartlett, E. Bréelle, Peter A. R. Ade, F. Piacentini, M. Piat, M. Veneziani, Federico Nati, P. de Bernardis, Y. Giraud-Héraud, Giampaolo Pisano, Massimo Gervasi, C. Giordano, Giorgio Savini, C. Rosset, Bruno Maffei, G. Polenta, Lucio Piccirillo, C. Dufour, Luca Conversi, Angiola Orlando, Andrea Tartari, APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre d'étude spatiale des rayonnements (CESR), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Paolo de Bernardis, Marco De Petris, Luca Lamagna, Roberto Maoli, Silvia Masi and Alessandro Melchiorri, BRAIN, Polenta, G, Ade, P, Bartlett, J, Bréelle, E, Conversi, L, de Bernardis, P, Dufour, C, Gervasi, M, Giard, M, Giordano, C, Giraud Heraud, Y, Maffei, B, Masi, S, Nati, F, Orlando, A, Peterzen, S, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Pons, R, Rosset, C, Savini, G, Sironi, G, Tartari, A, Veneziani, M, Zannoni, M, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), and Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Cosmic microwave background, Polarimetry, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 98.80.−k, 95.75.Hi, 95.75.Kk, 98.70.Vc, 7. Clean energy, 01 natural sciences, law.invention, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], symbols.namesake, FIS/05 - ASTRONOMIA E ASTROFISICA, law, 0103 physical sciences, Astronomical interferometer, Stokes parameters, 010303 astronomy & astrophysics, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Bolometer, background radiation, cosmology, interferometry, polarimetry, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, Cryocooler, Polarization (waves), Cosmology, Interferometry, 13. Climate action, Space and Planetary Science, Background radiation, symbols
Abstract: International audience; In the standard cosmological scenario tensor perturbations of the metric produce a rotational component in the Cosmic Microwave Background polarization, called B-modes. The expected signal is of the order of not, vert, similar0.1 μK, well beyond the sensitivity of current experiments. In this paper, we introduce the BRAIN experiment, a bolometric interferometer devoted to measure the B-modes polarization of the CMB from Concordia station in Antarctica. This experiment will take advantage of both high sensitivity of bolometer arrays and low level of systematic effects of interferometers. We report the results obtained during the first campaign we carried out this austral summer at Dome-C. Using a pathfinder experiment, we demonstrated that a cryocooler based cryogenic system can work in such environmental conditions. We also carried out preliminary observations of the atmospheric emission at 145 GHz from Dome-C, and during the next campaign we'll extend the measurements to all the Stokes parameters I, Q, U, V all over the winter.
Published: 2006

20. Archeops In-flight Performance, Data Processing and Map Making

Author: J. F. Macías-Pérez, G. Lagache, B. Maffei, K. Ganga, A. Bourrachot, P. Ade, A. Amblard, R. Ansari, E. Aubourg, J. Aumont, S. Bargot, J. Bartlett, A. Benoît, J.-Ph. Bernard, R. Bhatia, A. Blanchard, J. J. Bock, A. Boscaleri, F. R. Bouchet, P. Camus, J.-F. Cardoso, F. Couchot, P. de Bernardis, J. Delabrouille, F.-X. Désert, O. Doré, M. Douspis, L. Dumoulin, X. Dupac, Ph. Filliatre, P. Fosalba, F. Gannaway, B. Gautier, M. Giard, Y. Giraud-Héraud, R. Gispert, L. Guglielmi, J.-Ch. Hamilton, S. Hanany, S. Henrot-Versillé, V. Hristov, J. Kaplan, J.-M. Lamarre, A. E. Lange, K. Madet, Ch. Magneville, D. P. Marrone, S. Masi, F. Mayet, J. A. Murphy, F. Naraghi, F. Nati, G. Patanchon, O. Perdereau, G. Perrin, S. Plaszczynski, M. Piat, N. Ponthieu, S. Prunet, J.-L. Puget, C. Renault, C. Rosset, D. Santos, A. Starobinsky, I. Strukov, R. V. Sudiwala, R. Teyssier, M. Tristram, C. Tucker, J.-Ch. Vanel, D. Vibert, E. Wakui, D. Yvon, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), 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), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Hélium : du fondamental aux applications (NEEL - HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Cryogénie (NEEL - Cryo), Laboratoire Traitement et Communication de l'Information (LTCI), Télécom ParisTech-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), APC - Gravitation (APC-Gravitation), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Didactique André Revuz (LDAR (EA_4434)), Université d'Artois (UA)-Université Paris Diderot - Paris 7 (UPD7)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), ARCHEOPS, Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Hélium : du fondamental aux applications (HELFA), Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Cryogénie (Cryo), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), École normale supérieure - Paris (ENS Paris), Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Université Paris Diderot - Paris 7 (UPD7)-Université d'Artois (UA), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Macias-Perez, J, Lagache, G, Maffei, B, Ade, P, Amblard, A, Ansari, R, Aubourg, E, Aumont, J, Bargot, S, Bartlett, J, Benoit, A, Ph Bernard, J, Bhatia, R, Blanchard, A, Bock, J, Boscaleri, A, Bouchet, F, Bourrachot, A, Camus, P, Cardoso, J, Couchot, F, De Bernardis, P, Delabrouille, J, Desert, F, Dore, O, Douspis, M, Dumoulin, L, Dupac, X, Filliatre, P, Fosalba, P, Ganga, K, Gannaway, F, Gautier, B, Giard, M, Giraud Heraud, Y, Gispert, R, Guglielmi, L, Ch Hamilton, J, Hanany, S, Henrot Versille, S, Hristov, V, Kaplan, J, Lamarre, J, Lange, A, Madet, K, Magneville, C, Marrone, D, Masi, S, Mayet, F, Murphy, J, Naraghi, F, Nati, F, Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), HELFA - Hélium : du fondamental aux applications, Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Cryo - Cryogénie, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), École normale supérieure - Paris (ENS Paris)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université de Cergy Pontoise (UCP)
Subjects: cosmic microwave background, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, Cosmic microwave background, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, law.invention, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], symbols.namesake, law, 0103 physical sciences, Angular resolution, Planck, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, QB, media_common, Physics, Archeops, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Astrophysics (astro-ph), Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Galactic plane, methods: data analysis, 13. Climate action, Space and Planetary Science, Sky, methods : data analysis, symbols, Millimeter, Methods: data analysi
Abstract: Archeops is a balloon--borne experiment widely inspired by the Planck satellite and by its High Frequency Instrument (HFI). It is mainly dedicated to measure the Cosmic Microwave Background (CMB) temperature anisotropies at high angular resolution (about 12 arcminutes) over a large fraction of the sky (around 30 %) in the millimetre and submillimetre range at 143, 217, 353 and 545 GHz. Further, the Archeops 353 GHz channel consists of three pairs of polarized sensitive bolometers designed to detect the polarized diffuse emission of Galactic dust. We present in this paper the update of the instrumental setup as well as the inflight performance for the last Archeops flight campaign in February 2002 from Kiruna (Sweden). We also describe the processing and analysis of the Archeops time ordered data for that campaign which lead to the measurement of the CMB anisotropies power spectrum in the multipole range l=10-700 (Benoit et al. 2003a, Tristram et al. 2005) and to the first measurement of the dust polarized emission at large angular scales and its polarized. We present maps of 30 % of the sky of the Galactic emission, including the Galactic plane, in the four Archeops channels at 143, 217, 353 and 545 GHz and maps of the CMB anisotropies at 143 and 217 GHz. These are the firstever available sub--degree resolution maps in the millimetre and submillimetre range of the large angular-scales Galactic dust diffuse emission and CMB temperature anisotropies respectively., A full resolution version of the paper including figures is available at http://www.archeops.org/Archeops_Publication/Pub/Processing.pdf 39 pages, 40 figures
Published: 2006

21. CLOVER: The CMB Polarization Observer

Author: Lucio Piccirillo, Peter A. R. Ade, P. de Bernardis, Y. Giraud-Héraud, B. Johnson, Angiola Orlando, Bruno Maffei, Simon J. Melhuish, Anthony Lasenby, Keith Grainge, David J. Goldie, M. Jones, Walter Kieran Gear, L. Dunlop, Stafford Withington, Angela C. Taylor, Giampaolo Pisano, Philip Daniel Mauskopf, C. Calderon, Kate Gudrun Isaak, A. D. Challinor, Ghassan Yassin, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), M. Giard, F. Casoli, F. Paletou, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Microwave receivers, Cosmic Microwave Background radiation, Cosmic microwave background, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 7. Clean energy, law.invention, Telescope, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], law, Polarization, 0103 physical sciences, Polarimetry, 010306 general physics, Instrumentation, QB, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Gravitational wave, Bolometer, General Engineering, Cosmic Microwave Background radiation, B-Modes, Instrumentation, Polarimetry, Millimetre waves, Microwave receivers, Polarization, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Polarization (waves), Cardinal point, Millimetre waves, Space and Planetary Science, B-Modes
Abstract: We present a new, fully-funded ground-based instrument designed to measure the B-mode polarization of the Cosmic Microwave Background (CMB). The concept is based on three independent subsystems operating at 90, 150 and 220 GHz, each comprising a telescope and a focal plane of horn-coupled background-limited bolometers. This highly-sensitive experiment, planned to be based at Dome C station in Antarctica, is optimised to produce very low systematic effects. It will allow the detection of the CMB polarization over angular multipoles 20 < l < 1000 accurately enough to measure the B-mode signature from gravitational waves to a lensing-confusion-limited tensor-to-scalar ratio r similar to 0.005.
Published: 2004

22. Underground measurements at the frejus tunnel in the 3keV-5MeV energy range with a massive bolometer

Author: G. Nollez, J. Leblanc, G. Dambier, P. Goret, L. Gonzales-Mestres, P. de Marcillac, Y. Giraud-Héraud, C. Goldbach, N. Coron, A. de Bellefon, and J.W. Zhou
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Range (particle radiation), law, Bolometer, Astrophysics, Atomic and Molecular Physics, and Optics, Energy (signal processing), law.invention
Published: 1994

23. Dark matter search with a low temperature sapphire bolometer

Author: D. Drain, P. Charvin, M.C. Perillo-Isaac, G. Nollez, J. Leblanc, I. Berkes, N. Coron, C. Pastor, D. Broszkiewicz, C. Bobin, L. Dumoulin, G. Guerier, Y. Giraud-Héraud, M. Chapellier, M. De Jesus, D. Yvon, A. de Bellefon, D. Marchand, P. Pari, I. Prostakov, J.P. Hadjout, C. Goldbach, M. Massaq, G. Chardin, Y. Messous, B. Chambon, V. Chazal, X-F. Navick, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), EDELWEISS, Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and 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)
Subjects: Physics, Coupling, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, Dark matter, Bolometer, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, law.invention, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Optics, WIMP, law, 0103 physical sciences, Energy spectrum, Sapphire, Cryogenic Dark Matter Search, Detectors and Experimental Techniques, 010306 general physics, business
Abstract: A dark matter detection experiment using a low temperature 24 g sapphire bolometer is presented. The low radioactive background cryogenic facility, installed in a deep underground site, is described, as well as the low-noise read-out electronics and the data analysis. From the energy spectrum, measured down to 4 keV, exclusion plots are derived for WIMPs having coherent vector coupling or axial coupling to ordinary matter.
Published: 1996

24. Dark matter search in the Frejus underground laboratory EDELWEISS experiment

Author: M. Chapellier, G. Guerrier, C. Goldbach, M.C. Perillo-Isaac, A. de Bellefon, I. Berkés, D. Yvon, I. Prostakov, C. Pastor, D. Drain, G. Nollez, Y. Messous, Laurent Bergé, Y. Giraud-Héraud, N. Coron, J.P. Hadjout, D. Broszkiewicz, P. Pari, J Leblanc, M. De Jesus, X-F. Navick, L. Dumoulin, B. Chambon, V. Chazal, G. Chardin, P. Charvin, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-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), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), EDELWEISS, Collège de France (CdF)-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), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Flores, Sylvie
Subjects: Cryostat, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 4. Education, Bolometer, Dark matter, ComputerApplications_COMPUTERSINOTHERSYSTEMS, EDELWEISS, 01 natural sciences, law.invention, Nuclear physics, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], law, [PHYS.ASTR.CO] Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 0103 physical sciences, European Underground Rare Event Calorimeter Array, Underground laboratory, 010306 general physics, Instrumentation
Abstract: This article try to solve the University uncontrol cost collect for newest programs (example E-learning) and for the student who want to go back to the university. The System was analysed for the high school fee by the State and the differents students status who show us the uncontrolled economic factor (heavy founds) but also the management, institution and politic problems. Few orientations can help us to decide the cost for the level of degree and preserved the first notion of public service in high school.
Published: 1995

25. Studies of intermediate vector boson production and decay in UA1 at the CERN proton-antiproton collider

Author: W. G. Scott, Hans Reithler, Tejinder Virdee, R. Frey, Francesco Lacava, J. R. Batley, I. F. Fensome, P. Flynn, K. Morgan, D. Kryn, C. Perault, M. Yvert, A. Placci, D. J. Holthuizen, G.H. Grayer, N. Bains, E. Radermacher, J. P. Porte, S. Centro, C. Bacci, Veikko Karimäki, Ehud Duchovni, H. Faissner, M. Botlo, I. Siotis, D. G. Charlton, W.J. Haynes, Carmen Albajar, M. Mohammadi, L. Naumann, D. Dau, W. Kienzle, J. P. Merlo, C. Cochet, T. P. Shah, H. G. Moser, M. Demoulin, Pierluigi Zotto, Alessandro Bettini, G. Thompson, G.F. Cox, T. Bacon, J. Colas, G. Busetto, Anton Taurok, A. van Dijk, L. Dobrzynski, E. Tscheslog, A. Diciaccio, G.T.J. Arnison, M.-N. Minard, G. Jorat, Jonathan M. Gregory, D. Schinzel, J. Streets, Sergio Cittolin, I. Sheer, Ritva Kinnunen, M. Pimiä, P. M. Watkins, B. Mours, M. Corden, I. Wingerter, J. Kroll, Asoke K. Nandi, F. Szoncso, F. Cavanna, G. Walzel, J. P. Lees, E. Buckley, A. Schwartz, Margret Fincke-Keeler, Shu Li, G. Ciapetti, Philippe Ghez, W. R. Gibson, G. Piano Mortari, Matthias Schröder, J. Dorenbosch, A. Savoy-Navarro, D. Linglin, L. Villasenor, G. Maurin, W. van de Guchte, D. Clarke, W. von Schlippe, H. D. Wahl, Aleandro Nisati, L. Taylor, Alain Givernaud, P. Sphicas, D. Samyn, F. J. Diez Hedo, G. Bauer, J. Vrana, D. Joyce, Bruce Denby, Michael Albrow, M. A. Marquina, J. N. Bellinger, J. P. Debrion, P. Catz, S. Beingessner, S. Levegrün, I. ten Have, A. Bezaguet, Emilio Petrolo, L. Zanello, John A Coughlan, K. Bos, A. Moulin, P. Kyberd, D. Cline, James Rohlf, B. Aubert, P. Nedelec, Akram Khan, P. Colas, Y. Giraud-Héraud, G. Fontaine, T. Redelberger, Xin Wu, Kenneth Long, Peter Lipa, Achim Geiser, Thomas W. Markiewicz, G. Sajot, A. Norton, J. P. Revol, E. Eisenhandler, Christian Ghiglino, J. Garvey, Nicolas Ellis, C. Markou, Daniel J. Smith, Teresa Rodrigo, M. Lindgren, Charling Tao, J. D. Dowell, E. Pietarinen, A. Astbury, Th. Müller, Vivian O'Dell, P. I. P. Kalmus, C. Pigot, T. Meyer, M. Della Negra, S. Geer, A. Honma, Felicitas Pauss, M. Ikeda, M. Markytan, Filippo Ceradini, C. Rubbia, C. Ghesquire, V. Vuillemin, R. J. Homer, M. Jimack, W. Jank, H. Grassmann, R. Bonino, S. Tether, Christopher Seez, K. Eggert, J.P. Vialle, B. Van Eijk, Stephen Haywood, I. Zacharov, A. Wildish, T. Axon, J. Sass, M. Debeer, R. Sobie, Nicolas Zaganidis, I. R. Kenyon, P. Erhard, Jorma Tuominiemi, J. P. Mendiburu, M. Preischl, Daniel Denegri, A. Gonidec, Murrough Landon, Anna Teresa Meneguzzo, Dave Robinson, J. D. Richman, A. Ferrando, G. Pancheri, O. C. Allkofer, H. F. Hoffmann, K. Wacker, R. Edgecock, M. Degiorgi, J. Randsdell, C.-E. Wulz, Elizabeth Locci, J. P. Laugier, Stephen Wimpenny, Claudia J. Stubenrauch, Josef Strauss, G. Salvini, A. Kernan, Terry Richard Wyatt, D. J. Summers, R. Leuchs, Richard Keeler, M. Moricca, Manfred Krammer, Konstanty Sumorok, P. Cennini, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), UA1, and BOMBAR, Claudine
Subjects: Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics and Astronomy (miscellaneous), Elementary particle, 7. Clean energy, 01 natural sciences, law.invention, Vector boson, Standard Model, Nuclear physics, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Collider, Engineering (miscellaneous), Physics, Muon, Large Hadron Collider, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Weinberg angle, Antiproton, Physics::Accelerator Physics, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: An extensive study of production and decay properties of charged and neutral Intermediate Vector Bosons (IVB) at the CERN proton-antiproton collider is presented. Intermediate Vector Bosons were detected in the electron, muon, and tau decay modes at centre-of-mass energies of 0.546 and 0.630 TeV. This paper is a summary, based on all the available data from the UA1 experiment from the running periods 1982–1985. Results are presented and compared with expectations of the Standard Eletroweak Model and QCD-improved Drell-Yan annihilation processes. The general conclusion is that there is an excellent agreement between the predictions of the Standard Model and our measurements.
Published: 1989

26. Bose-Einstein correlations in pp interactions at √s=0.2 to 0.9 TeV

Author: Hans Reithler, H. Bohn, P. Cennini, Christian Ghiglino, E. F. Clayton, W. G. Scott, M. Jimack, Alain Givernaud, C.-E. Wulz, M. Schröder, Sergio Cittolin, I. ten Have, G. Sajot, D. Kryn, I. F. Fensome, F. J. Diez Hedo, Steve McMahon, Anton Taurok, Emilio Petrolo, T. Moers, J. P. Porte, J. Vrana, R. Conte, M. Yvert, T. Bacon, G. Walzel, K. Morgan, H. Faissner, R. Leuchs, L. Zanello, R. Prosi, F. Szoncso, L. Taylor, D. Samyn, A. Astbury, E. Tscheslog, Daniel J. Smith, P. Nedelec, N. Bains, Teresa Rodrigo, Akram Khan, P. Colas, G. Maurin, M. Markytan, W. van de Guchte, M. Pimiä, J. D. Dowell, A. Moulin, K. Ankoviak, David B. Cline, Dave Robinson, L. Dobrzynksi, V. O'Dell, P. I. P. Kalmus, J. P. Mendiburu, A. Placci, A. van Dijk, Paraskevas Sphicas, H. G. Moser, S. Tether, Murrough Landon, Nicolas Ellis, P. Biddulph, Anna Teresa Meneguzzo, Dave Charlton, D. Schinzel, C. Bacci, S. Beingessner, M. Botlo, A. Schwartz, I. Siotis, G. Bauer, A. Bezaguet, A. Ferrando, G. Ciapetti, John A Coughlan, G. Cox, Stefano Veneziano, L. Fortson, B. Buschbeck, J.P. Vialle, M. Nikitas, W.J. Haynes, T. C. Meyer, D. J. Holthuizen, R. K. Keeler, K. Bos, J. Dorenbosch, E. Radermacher, B. Aubert, Alessandro Bettini, Michael Albrow, Ritva Kinnunen, D. Linglin, Carmen Albajar, A. Caner, J. P. Revol, O. C. Allkofer, Th. Müller, G. Thompson, H. Dibon, B. Mours, I. Zacharov, V. Vuillemin, W. Jank, G. Pancheri, P. Casoli, G. Busetto, J. Colas, K. Wacker, I. Wingerter, Peter Lipa, S. Centro, J. P. Debrion, M. Mohammadi, Christopher Seez, B. Andrieu, M. Demoulin, Manfred Krammer, A. Geiser, Konstanty Sumorok, K. Eggert, Jean-Pierre Merlo, Veikko Karimäki, M. Lindgren, A. Norton, T. Redelberger, C. Rubbia, F. Cavanna, D. Dau, M. Della Negra, S. Geer, G. Jorat, P. Erhard, A. Kernan, G. Piano Mortari, I. R. Kenyon, Jonathan M. Gregory, A. Böhrer, Pierluigi Zotto, S. Levegrün, R. Apsimon, Y. Giraud-Héraud, M. Preischl, E. Pietarinen, Daniel Denegri, A. Diciaccio, X. Wu, Jorma Tuominiemi, Claudia J. Stubenrauch, S. Lammel, A. Gonidec, G. Salvini, T. P. Shah, W. Kienzle, C. Markou, J. Sass, R. Bonino, T. Feuss, Margret Fincke-Keeler, Aleandro Nisati, J. Garvey, E. Eisenhandler, Felicitas Pauss, M. Ikeda, Filippo Ceradini, J. Kroll, M. A. Marquina, James Rohlf, W. von Schlippe, Tejinder Virdee, Francesco Lacava, C. Zaccardelli, D. Joyce, L. Naumann, and M. Degiorgi
Subjects: Physics, Nuclear and High Energy Physics, Interaction model, Bose–Einstein correlations, Charged particle, law.invention, Nuclear physics, law, Pseudorapidity, Particle, High Energy Physics::Experiment, Angular dependence, Collider, Constant (mathematics)
Abstract: Bose-Einstein correlations have been measured at the SPS collider at centre-of-mass energies from √ s =0.2 to 0.9 TeV. The size and the incoherence parameter of the particle emitting region have been determined as a function of charged particle density in pseudorapidity Δ n /Δη, centre-of-mass energy and the direction of emission of the charged particles. For fixed values of Δ n /Δη the size of the interaction region and the incoherence parameter remain constant with rising √ s . At fixed √ s , the size of the interaction region increases with rising charged particle density while the incoherence parameter decreases.
Published: 1989

27. Two-jet mass distributions at the CERN proton-antiproton collider

Author: P. Nedelec, D. Samyn, D. J. Holthuizen, A. Schwartz, Akram Khan, P. Colas, I. Siotis, W.J. Haynes, Ehud Duchovni, M. Jimack, D. Robinson, Carmen Albajar, Nicolas Ellis, J. P. Revol, S. Centro, Christopher Seez, J. P. Merlo, D. Summers, B. Aubert, A. Wildish, A. Placci, X. Wu, M. Demoulin, L. Dobrzynski, R. K. Keeler, D. Linglin, P. Ghez, Ritva Kinnunen, L. Villasenor, Jorma Tuominiemi, T. P. Shah, C. Ghesquiere, Felicitas Pauss, M. Ikeda, P. Cennini, P. Erhard, J. D. Dowell, G. Sajot, G. Maurin, Filippo Ceradini, S. Li, M. A. Marquina, M. Schröder, Sergio Cittolin, I. R. Kenyon, B. Mours, Jacqueline Batley, W. van de Guchte, M. Pimiä, Josef Strauss, D. Clarke, E. Tscheslog, Emilio Petrolo, A. Diciaccio, J. P. Lees, M.J. Corden, S. J. Haywood, Daniel J. Smith, Nicolas Zaganidis, C. Markou, I. Wingerter, W. Kienzle, R. Leuchs, C. Rubbia, J. Kroll, G. Jorat, G. Bauer, W. G. Scott, Teresa Rodrigo, T. Redelberger, E. Buckley, Jonathan M. Gregory, I. Sheer, M. Preischl, E. Pietarinen, Daniel Denegri, G. Walzel, F. Szoncso, Alain Givernaud, J. Vrana, V. Vuillemin, F. J. Diez Hedo, J. Sass, L. Zanello, O. C. Allkofer, A. Moulin, Tejinder Virdee, H. G. Moser, G. Busetto, K. Sumorok, C. Bacci, H. Grassmann, M. Markytan, J. Colas, Francesco Lacava, C. Perault, P. I. P. Kalmus, M. Yvert, P. Sphicas, H. Faissner, A. Bezaguet, A. van Dijk, J. Rohlf, N. Bains, Hans Reithler, D. Gee, J. P. Mendiburu, D. Kryn, I. F. Fensome, P. Flynn, John A Coughlan, Randall Sobie, S. Beingessner, G. Cox, Margret Fincke-Keeler, K. Morgan, Th. Müller, E. Radermacher, W. Jank, J. Dorenbosch, Murrough Landon, Anna Teresa Meneguzzo, J. P. Porte, L. Naumann, M. Mohammadi, A. Norton, Dave Charlton, A. Taurok, J. Streets, C. Pigot, Claudia J. Stubenrauch, A. Gonidec, Aleandro Nisati, A. Ferrando, G. Salvini, C. Cochet, G. Piano Mortari, G. Ciapetti, Stephen Wimpenny, M.-N. Minard, Michael Albrow, J. Garvey, D. Schinzel, K. Bos, C. Chiglino, J. P. Debrion, M. Degiorgi, A. Kernan, C.-E. Wulz, Elizabeth Locci, David B. Cline, A. Astbury, R. Bonino, S. Tether, J.P. Vialle, K. Wacker, I. Zacharov, Manfred Krammer, T. Axon, A. Geiser, Alessandro Bettini, G. Thompson, Veikko Karimäki, T. C. Meyer, T. C. Bacon, I. ten Have, Pierluigi Zotto, S. Levegrün, Y. Giraud-Héraud, T. Wyatt, Peter Lipa, T. Markiewicz, M. Lindgren, Charling Tao, D. Dau, M. Della Negra, S. Geer, K. Eggert, W. von Schlippe, C. Zaccardelli, D. Joyce, P. Catz, G. Fontaine, and E. Eisenhandler
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Gauge boson, Particle physics, Large Hadron Collider, Proton, Jet (particle physics), law.invention, Nuclear physics, Cross section (physics), law, Antiproton, High Energy Physics::Experiment, Nuclear Experiment, Collider, Particle Physics - Experiment
Abstract: Two-jet mass distributions have been measured as a function of centre-of-mass scattering angle for high-mass jet pairs produced in proton-antiproton collisions at the CERN collider operating at a centre-of-mass energy of 630 GeV. The agreement between QCD expectations and the experimental measurements has been used to place limits on the production cross section of an object X decaying into two jets. In particular we consider the existence of a massive colour octet of vector gauge bosons (axigluons). We exclude axigluons with a width ΛA
Published: 1988

28. Experimental observation of isolated large transverse energy electrons with associated missing energy at

Author: G. Maurin, D. J. Holthuizen, G.H. Grayer, A. Bezaguet, A. Astbury, J.P. Vialle, B. Aubert, C. Hodges, Paolo Rossi, S. Centro, D. Kryn, Michel Spiro, W. G. Scott, T. Carroll, M. Demoulin, M. Yvert, H. Muirhead, Michael Rijssenbeek, Y. Giraud-Héraud, D. DiBitonto, T. Hansl-Kozanecka, A. Gonidec, K. Eggert, Phillip Gutierrez, A. Kernan, S. van der Meer, G.T.J. Arnison, G. Pianomortari, J. Saudraix, W. Jank, A. Placci, J. P. Mendiburu, K. Leuchs, P. Ghez, L. Dobrzynski, A. Di Ciaccio, J. P. Revol, M.-N. Minard, Charling Tao, M. Della Negra, A. Honma, H. F. Hoffmann, M. Debeer, D. Dallman, C. Cochet, T. J. McMahon, Jorma Tuominiemi, G. Jorat, S. Geer, J. P. Lees, I. R. Kenyon, T. J. V. Bowcock, P. Erhard, D. Schinzel, David B. Cline, Josef Strauss, Richard Keeler, C. Roberts, J. Sass, G. Salvi, M. C. Edwards, J. Timmer, M. Loret, Ritva Kinnunen, M. Pimiä, P. M. Watkins, P.I.P. Kalmus, Thomas W. Markiewicz, H. D. Wahl, V. Vuillemin, Daniel Denegri, J. Colas, G. Thompson, C. Rubbia, C. Ghesquiere, G. Bauer, M. Moricca, G. Sajot, David J. Smith, P. Cennini, C. Bacci, Konstanty Sumorok, W.R. Gibson, M. Corden, J. Vrana, J. Rich, H. Kowalski, A. Norton, J. J. Malosse, G. Salvini, Dirk L. Hoffmann, M. Calvetti, W.J. Haynes, T.P. Shah, L. Paoluzi, H. Lehmann, A. Lévêque, J. Ransdell, Sergio Cittolin, W. Kozanecki, James Rohlf, H. Faissner, E. Zurfluh, P. Catz, Asoke K. Nandi, R. Boeck, F. Szoncso, E. Tscheslog, G. Fontaine, J. Garvey, E. Eisenhandler, J. D. Dowell, R. Frey, Francesco Lacava, L.O. Hertzberger, K.L. Giboni, Filippo Ceradini, Hans Reithler, E. Radermacher, J. S. Wilson, V. Karimaeki, L. Naumann, F. Muller, D. Linglin, A. Savoy-Navarro, A. Orkin-Lecourtois, Elizabeth Locci, Y. Xie, J. P. Laugier, R. J. Homer, B. Sadoulet, Rudolf Fruehwirth, Nicolas Ellis, G. Petrucci, and Alain Givernaud
Subjects: Quark, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Missing energy, Electron, Vector boson, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Unified field theory, Collider
Abstract: We report the results of two searches made on data recorded at the CERN SPS Proton-Antiproton Collider: one for isolated large- E T electrons, the other for large- E T neutrinos using the technique of missing transverse energy. Both searches converge to the same events, which have the signature of a two-body decay of a particle of mass ∼80 GeV/ c 2 . The topology as well as the number of events fits well the hypothesis that they are produced by the proces p + p → W ± + X , with W ± →e ± + ν ; where W ± is the Intermediate Vector Boson postulated by the unified theory of weak and electromagnetic inter- actions.
Published: 1983

29. Events with large missing transverse energy at the CERN collider: III. Mass limits on supersymmetric particles

Author: Stephen Wimpenny, T. Bacon, G. Maurin, M. Pimiä, D. Clarke, Anna Teresa Meneguzzo, Dave Charlton, W. G. Scott, K. Sumorok, J. P. Lees, Michael Levi, J. D. Dowell, John A Coughlan, A. Ferrando, G. Walzel, R. Leuchs, Christian Ghiglino, Margret Fincke-Keeler, M. Degiorgi, D. Samyn, Ehud Duchovni, M. Jimack, D. J. Holthuizen, G.H. Grayer, D. Robinson, S. Centro, M. Demoulin, Aleandro Nisati, Alessandro Bettini, G. Thompson, M.-N. Minard, J. N. Bellinger, D. Summers, J. Vrana, C. Ghesquiere, D. Schinzel, G. Cox, C.-E. Wulz, H. Faissner, T. P. Shah, N. Zaganidis, Kenneth Long, G. Busetto, Elizabeth Locci, J. P. Laugier, J. R. Batley, I. F. Fensome, P. Flynn, Randall Sobie, W. Kienzle, A. Kernan, W. von Schlippe, L. Zanello, M. Mohammadi, B. Aubert, R. Frey, Alain Givernaud, F. J. Diez Hedo, A. Taurok, C. Zaccardelli, H. G. Moser, Bruce Denby, A. Bezaguet, P. Catz, J. Dorenbosch, A. Savoy-Navarro, P. Nedelec, Akram Khan, P. Colas, A. Wildish, Michael Albrow, Christopher Seez, S. Tether, Hans Reithler, Felicitas Pauss, M. Ikeda, Filippo Ceradini, J. P. Debrion, D. Gee, G. Fontaine, Nicolas Ellis, W. Ruhm, J. P. Mendiburu, T. Redelberger, A. Schwartz, M. Preischl, E. Pietarinen, Daniel Denegri, J. Kroll, L. Naumann, K. Morgan, E. Eisenhandler, I. Siotis, W.J. Haynes, T. Markiewicz, Veikko Karimäki, P. Erhard, G. Sajot, K. Eggert, C. Pigot, T. Meyer, A. Diciaccio, A. Placci, Carmen Albajar, S. Beingessner, J. Garvey, Charling Tao, G. Bauer, E. Tscheslog, David B. Cline, E. Petrolo, Daniel J. Smith, D. Dau, M. Della Negra, Pierluigi Zotto, S. Geer, J. P. Merlo, A. Honma, Teresa Rodrigo, J. P. Porte, I. ten Have, P. I. P. Kalmus, X. Wu, Ritva Kinnunen, S. Levegrün, E. Buckley, A. Astbury, S. Li, B. Mours, M.J. Corden, S. J. Haywood, M. Debeer, R. Edgecock, R. Bonino, Jorma Tuominiemi, Richard Keeler, M. Schröder, Sergio Cittolin, I. Wingerter, Y. Giraud-Héraud, T. Wyatt, J.P. Vialle, J. Rohlf, I. R. Kenyon, K. Wacker, O. C. Allkofer, I. Zacharov, Manfred Krammer, T. Axon, Jeffrey Richman, A. Geiser, P. Ghez, E. Radermacher, Josef Strauss, D. Linglin, L. Villasenor, Asoke K. Nandi, F. Szoncso, C. Markou, J. Sass, J. Streets, Paolo Rossi, M. A. Marquina, Claudia J. Stubenrauch, A. Gonidec, G. Salvini, M. Yvert, P. Sphicas, Tejinder Virdee, Francesco Lacava, N. Bains, C. Perault, V. Vuillemin, K. Bos, C. Cochet, G. Ciapetti, H. von der Schmitt, C. Rubbia, M. Moricca, J. P. Revol, Th. Müller, W. Jank, L. Dobrzynski, G. Jorat, I. Sheer, H. Grassmann, D. Kryn, P. Cennini, C. Bacci, M. Markytan, B. Van Eijk, Peter Watkins, J. Colas, A. Norton, and G. Piano Mortari
Subjects: Physics, Nuclear and High Energy Physics, Stop squark, Gluino, Particle physics, Large Hadron Collider, High Energy Physics::Phenomenology, Lightest Supersymmetric Particle, law.invention, Nuclear physics, Massless particle, law, High Energy Physics::Experiment, Limit (mathematics), Nuclear Experiment, Collider, Photino
Abstract: A sample of events with large missing transverse energy from 715 nb −1 of data from the UA1 experiment at the CERN proton-antiproton collider is used to search for evidence of supersymmetric particle production. Assuming that the photino is the lightest supersymmetric particle and that it is massless, we find a limit on the squark mass of m q >45 GeV /c 2 at 90% CL, independently of the gluino mass. Similarly, we find a limit on the gluino mass of m g >53 GeV /c 2 (at 90% CL) independently of the squark mass, provided that the gluino is not long-lived (i.e. provided that the squark is not too heavy, m q ⪅1 TeV /c 2 ). For equal squark and gluino masses we find a limit m q =m g >75 GeV /c 2 at 90% CL. The effect of a non-zero photino mass on these limits is studied.
Published: 1987

30. Small angle elastic scattering at the CERN proton-antiproton collider

Author: C. Bacci, L. Dobrzynski, A.M. Cnops, L. Paoluzi, D. Linglin, T. Carroll, S. d'Angelo, J. Colas, Filippo Ceradini, G. Pianomortari, M. Yvert, P. Ghez, R. Leuchs, Richard Keeler, A. Orkin-Lecourtois, H. F. Hoffmann, Daniel Denegri, M. Corden, A. Bezaguet, Hans Reithler, A. Norton, Phillip Gutierrez, J. Rich, C. Roberts, Charling Tao, Sergio Cittolin, M. Della Negra, Josef Strauss, A. Honma, R. Haidan, J. S. Wilson, J. Timmer, R. Bernabei, E. Tscheslog, R. J. Homer, M. Moricca, Konstanty Sumorok, V. Karimaeki, J. Vrana, D.J. Holthuizen, R. Boeck, L. Naumann, F. Muller, R. Frey, Francesco Lacava, G.T.J. Arnison, Asoke K. Nandi, W.J. Haynes, Jorma Tuominiemi, L.O. Hertzberger, K.L. Giboni, J. Garvey, F. Szoncso, J.P. Fournier, J. D. Dowell, M. Rabany, C. Cochet, G. Fontaine, Y. Giraud-Héraud, E. Radermacher, A. Lévêque, M.-N. Minard, D. Dallman, Michael Rijssenbeek, G. Thompson, J. P. Lees, D. Schinzel, E. Eisenhandler, E. Zurfluh, A. Astbury, Ritva Kinnunen, M. Pimiä, P. M. Watkins, Alain Givernaud, M. Calvetti, T. J. V. Bowcock, T.P. Shah, W. Jank, A. Savoy-Navarro, H. D. Wahl, P. Catz, B. Sadoulet, J.P. Vialle, Elizabeth Locci, C. Rubbia, H. Lehmann, J. P. Laugier, Rudolf Fruehwirth, J. Sass, Nicolas Ellis, H. Kowalski, J. Ransdell, R. Desalvo, T. Hansl-Kozanecka, C. Hodges, J. P. Mendiburu, K. Morgan, G. Salvini, P.I.P. Kalmus, G. Maurin, W. G. Scott, B. Aubert, V. Vuillemin, D. Kryn, Michel Spiro, Thomas W. Markiewicz, G. Sajot, C. Ghesquiere, W.R. Gibson, D. Vismara, K. Eggert, M. Debeer, T. J. McMahon, S. Geer, I. R. Kenyon, G.H. Grayer, P. Erhard, G. Salvi, M. C. Edwards, S. Centro, D. DiBitonto, M. Demoulin, A. Gonidec, J. Saudraix, A. Placci, Dirk L. Hoffmann, A. Kernan, W. Kozanecki, H. Faissner, G. von Holtey, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), UA1, and BOMBAR, Claudine
Subjects: Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Proton, 01 natural sciences, 7. Clean energy, Exponential form, Settore FIS/04 - Fisica Nucleare e Subnucleare, law.invention, Nuclear physics, Momentum, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Collider, Physics, Elastic scattering, Range (particle radiation), Large Hadron Collider, 010308 nuclear & particles physics, Settore FIS/01 - Fisica Sperimentale, Antiproton, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: 3roton-antiproton elastic scattering at cm energy 540 GeV has been studied in the t range 0.14 ⩽ − t ⩽ 0.26 GeV 2 . The data is well fitted by an exponential form exp( bt ) with b = 13.3 ± 1.5 GeV −2 .
Published: 1983

31. Angular distributions and structure functions from two-jet events at the CERN SPS collider

Author: V. Vuillemin, L. Paoluzi, D. DiBitonto, M. Yvert, A. Gonidec, Richard Keeler, R. Frey, Francesco Lacava, Hans Reithler, Charling Tao, K.L. Giboni, D. Linglin, M. Moricca, Konstanty Sumorok, M. Della Negra, A. Placci, David J. Smith, C. Cochet, E. Tscheslog, E. Radermacher, Josef Strauss, K. Leuchs, D. J. Holthuizen, G.H. Grayer, P. Cennini, A. Honma, S. Centro, M. Demoulin, J. Saudraix, A. Di Ciaccio, B. Sadoulet, B. Aubert, H. F. Hoffmann, J. P. Lees, Filippo Ceradini, G.T.J. Arnison, Veikko Karimäki, S. Geer, T. J. V. Bowcock, M. Calvetti, W. Kozanecki, M. Loret, H. Faissner, T.P. Shah, A. Astbury, W.J. Haynes, Nicolas Ellis, G. Jorat, Ludwik Dobrzynski, A. Orkin-Lecourtois, G. Maurin, Ritva Kinnunen, M. Pimiä, P. M. Watkins, T. Hansl-Kozanecka, M. Rijseenbeek, C. Hodges, Y. Xie, A. Lévêque, W. G. Scott, Philippe Ghez, Daniel Denegri, J. P. Mendiburu, P. I. P. Kalmus, M. Debeer, T. J. McMahon, R. J. Homer, James Rohlf, W. Jank, G. Thompson, J. Rich, C. Rubbia, J. J. Malosse, Elizabeth Locci, E. Zurfluh, G. Bauer, L. O. Hertzberger, H. Kowalski, J. P. Revol, I. R. Kenyon, J. S. Wilson, Alain Givernaud, A. Savoy-Navarro, L. Naumann, Michel Spiro, F. Muller, J. P. Laugier, J. Garvey, P. Erhard, J. Vrana, W. R. Gibson, T. Carroll, Y. Giraud-Héraud, G. Salvi, J. D. Dowell, E. Pietarinen, J.P. Vialle, Dirk L. Hoffmann, R. K. Bock, Phillip Gutierrez, M.-N. Minard, A. Kernan, Jorma Tuominiemi, D. Dallman, J. Ransdell, Sergio Cittolin, P. Russi, D. Schinzel, J. Streets, C. Ghesquiere, H. D. Wahl, J. Sass, H. Lehmann, G. Salvini, D. Kryn, Asoke K. Nandi, F. Szoncso, Thomas W. Markiewicz, David B. Cline, R. Frühwirth, G. Sajot, K. Eggert, C. Bacci, A. Bezaguet, J. Timmer, G. Fontaine, A. Norton, E. Eisenhandler, P. Catz, Paul Kyberd, H. Muirhead, C. Roberts, J. Colas, M. Corden, and G. Piano Mortari
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Proton, Parton, Jet (particle physics), law.invention, Gluon, Nuclear physics, Cross section (physics), law, Collider
Abstract: The two-jet cross section measured in the UA1 apparatus at the CERN p p Collider has been analysed in terms of the centre-of-mass scattering angle θ and the scaled longitudinal parton momenta x1 and x2. The angular distribution dσ/d cos σ rises rapidly as cos → 1, independent of x2 and x2, as expected in vector gluon theories (QCD). The differential cross section in x1 and x2 is consistent with factorization and provides a measurement of the proton structure function F(x) = G(x) + 4 9 [Q(x) + Q (x)] at values of the four-momentum transfer squared, -t ≈ 2000 GeV2. Over the range x = 0.10−0.80 the structure function shows an exponential x dependence and may be parametrized by the form F(x) = 6.2 exp (−9.5x).
Published: 1984

32. Comparison of three-jet and two-jet cross sections in pp̄ collisions at the CERN SPS pp̄ collider

Author: M. Loret, J. Colas, Philippe Ghez, J. Dorenbosch, A. Savoy-Navarro, D. Kryn, T. J. V. Bowcock, P. Erhard, P. Cennini, H. Faissner, Josef Strauss, A. Di Ciaccio, L. Dobrzynski, D. Linglin, Y. Giraud-Héraud, W.J. Haynes, B. Aubert, A. Lévêque, T. Wyatt, G. Bauer, P. Flynn, W. G. Scott, E. Radermacher, Hans Reithler, G.T.J. Arnison, T. Markiewicz, G. Jorat, G. Fontaine, I. Sheer, A. Norton, A. Orkin-Lecourtois, Charling Tao, G. Thompson, Milene Calvetti, E. Eisenhandler, D. J. Holthuizen, G.H. Grayer, J. Sass, R. Frey, Francesco Lacava, L. Paoluzi, G. Sajot, L.O. Hertzberger, E. Tscheslog, K.L. Giboni, M. Moricca, C. Bacci, M. Della Negra, Daniel J. Smith, A. Bezaguet, K. Morgan, Ritva Kinnunen, P. M. Watkins, C. Roberts, D. Pitman, S. Geer, A. Honma, M. Mohammadi, P. I. P. Kalmus, S. Centro, Sergio Cittolin, Veikko Karimäki, W. Kozanecki, M. Yvert, A. Placci, Paolo Rossi, M.J. Corden, D. Dau, M. Demoulin, R. Sobie, Michael Rijssenbeek, J. Streets, D. Hoffmann, M.-N. Minard, G. Maurin, J. Garvey, Alain Givernaud, T. Redelberger, G. Salvini, E. Buckley, P. Catz, D. Dallman, T. Hansl-Kozanecka, Asoke K. Nandi, J. P. Revol, R. Frühwirth, F. Szoncso, J. P. Porte, D. Schinzel, Jorma Tuominiemi, W. Jank, C. Cochet, L. Naumann, W. R. Gibson, W. Guryn, G. Ciapetti, A. Kernan, B. Sadoulet, J. D. Dowell, C. Rubbia, J. Vrana, J. P. Lees, L. Zanello, R. K. Bock, R. Leuchs, J. Timmer, J. P. Mendiburu, O. C. Allkofer, Nicolas Ellis, T.P. Shah, J. Rohlf, C. Ghesquiere, H. F. Hoffmann, E. Pietarinen, Daniel Denegri, J. Rich, H. D. Wahl, H. Lehmann, V. Vuillemin, Felicitas Pauss, Filippo Ceradini, R. J. Homer, David B. Cline, A. Astbury, D. DiBitonto, A. Gonidec, M. Debeer, T. J. McMahon, I. R. Kenyon, J. A. Wilson, J.P. Vialle, Richard Keeler, R. Edgecock, J. Ransdell, R. Batley, Konstanty Sumorok, M. Pimiä, C.-E. Wulz, Elizabeth Locci, J. P. Laugier, K. Eggert, G. Piano Mortari, Paul Kyberd, R. Raja, M. Fincke, and B. Van Eijk
Subjects: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Astrophysics::High Energy Astrophysical Phenomena, Strong interaction, Bremsstrahlung, Dalitz plot, Jet (particle physics), Super Proton Synchrotron, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Collider
Abstract: Results are presented on two-jet and three-jet cross sections, measured in the UA1 experiment at the CERN Super Proton Synchrotron (SPS) pp Collider, at the highest available subprocess cms energies ( s >150 GeV ). Precise measurements of the two-jet angular distribution are consistent with previous results but show significant scale-breaking effects. The three-jet Dalitz plot and the three-jet angular distributions show evidence for final- and initial-state bremsstrahlung processes, in agreement with the leading-order QCD predictions. A comparison of the yield of wide-angle three-jet events with the yield of two-jet events at smaller scattering angles gives for the strong interaction coupling constant: α s ( K 3J K 2J )=0.16±0.02±0.03 at Q2≈4000 GeV2, where the factor K 3J K 2J may plausibly be assumed to be close to unity.
Published: 1985

33. D∗ production in jets at the CERN SPS collider

Author: A. Orkin-Lecourtois, A. Kernan, Daniel Denegri, W. J. Haynes, G.T.J. Arnison, D. DiBitonto, J. Rich, A. Gonidec, R. Frey, Francesco Lacava, David J. Smith, L.O. Hertzberger, A. Savoy-Navarro, Ritva Kinnunen, David B. Cline, A. Placci, M. Pimiä, P. M. Watkins, I. Sheer, J. Sass, K. Reithler, C. Ghesquière, A. Astbury, Alain Givernaud, Veikko Karimäki, Charling Tao, D. Dau, J. P. Revol, L. Dobrzynski, M. Loret, M. Della Negra, D. J. Holthuizen, G.H. Grayer, B. Aubert, H. F. Hoffmann, Jorma Tuominiemi, A. Diciaccio, Dirk L. Hoffmann, G. Thompson, S. Geer, A. Honma, L. Paoluzi, G. Jorat, C. Bacci, B. Sadoulet, S. Centro, P. Flynn, J.P. Vialle, A. Bezaguet, G. Maurin, J. S. Wilson, E. Radermacher, J. P. Porte, W. G. Scott, C.-E. Wulz, W. Kozanecki, M. Demoulin, M. Yvert, Elizabeth Locci, Nicolas Ellis, M. Debeer, T. J. McMahon, H. Faissner, M. Mohammadi, J. P. Laugier, E. Tscheslog, J. Garvey, V. Vuillemin, I. R. Kenyon, Sergio Cittolin, P. Erhard, T. Hansl-Kozanecka, Michel Spiro, O. C. Allkofer, D. Linglin, J. Ransdell, P. Cennini, J. D. Dowell, E. Pietarinen, M. Calvetti, M.-N. Minard, J. P. Mendiburu, D. Dallman, J. P. Lees, R. K. Bock, Asoke K. Nandi, F. Szoncso, D. Schinzel, J. Streets, Y. Giraud-Héraud, T. J. V. Bowcock, C. Cochet, P. Kyberd, R. Frühwirth, J. Rohlf, K. Morgan, P.I.P. Kalmus, G. Salvini, P. Ghez, Josef Strauss, C. Rubbia, G. Bauer, Felicitas Pauss, A. Lévêque, T. P. Shah, R. Leuchs, Richard Keeler, Filippo Ceradini, D. Kryn, M. Moricca, Konstanty Sumorok, R. J. Homer, H. D. Wahl, H. Lehmann, L. Naumann, F. Muller, G. Fontaine, E. Eisenhandler, J. Timmer, P. Catz, J. Colas, M. Corden, A. Norton, G. Piano Mortari, Paolo Rossi, Michael Rijssenbeek, W. Jank, M. Fincke, Thomas W. Markiewicz, D. Pitman, B. Van Eijk, C. Roberts, K. Eggert, J. Vrana, G. Sajot, and W.R. Gibson
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Meson, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, Charged particle, Gluon, law.invention, Nuclear physics, Particle decay, Pion, law, High Energy Physics::Experiment, Nuclear Experiment, Collider
Abstract: We report evidence for the production of the charged D∗ mesons in pp collisions at s = 540 GeV . The search was confined to the charged particle fragments of hadronic jets, which are expected to be predominantly gluon jets in this experiment. The fragmentation function and production rate for D∗ in jets of average transverse momentum of 28 GeV/c are given.
Published: 1984

34. Search for oscillations at the CERN proton-antiproton collider

Author: J. Colas, D. Linglin, L. Villasenor, T. Bacon, H. Faissner, J. Vrana, Veikko Karimäki, W. Ruhm, G.T.J. Arnison, J. R. Batley, I. F. Fensome, P. Flynn, Randall Sobie, M. Yvert, P. Sphicas, L. Zanello, A. Norton, N. Bains, Stephen Wimpenny, Pierluigi Zotto, A. Astbury, G. Bauer, J. Dorenbosch, A. Savoy-Navarro, M.-N. Minard, D. Schinzel, M. Mohammadi, E. Pietarinen, Daniel Denegri, G. Piano Mortari, C. Ghesquiere, Ritva Kinnunen, G. Sajot, W.R. Gibson, W. G. Scott, S. Li, B. Mours, D. Pitman, C. Cochet, G. Maurin, J. P. Debrion, H. G. Moser, A. Placci, M.J. Corden, S. J. Haywood, I. Wingerter, Paul Kyberd, Hans Reithler, G. Ciapetti, D. Gee, M. Pimiä, D. Clarke, J. D. Dowell, John A Coughlan, E. Radermacher, R. Edgecock, L. Dobrzynski, Tejinder Virdee, R. Frey, Francesco Lacava, M. Ikeda, J.P. Vialle, A. Schwartz, A. Bezaguet, L. Naumann, C. Perault, Paolo Rossi, M. Debeer, O. C. Allkofer, Felicitas Pauss, A. Diciaccio, M. Markytan, K. Morgan, I. Siotis, C. Pigot, E. Tscheslog, Daniel J. Smith, E. Petrolo, M. Moricca, J. P. Revol, M. Degiorgi, I. Zacharov, D. Pascoli, Filippo Ceradini, John Wilson, T. Meyer, S. Tether, C. Markou, P. I. P. Kalmus, G. Jorat, I. Sheer, W.J. Haynes, T. Axon, Jeffrey Richman, A. Geiser, Christopher Seez, J. Kroll, Alessandro Bettini, Paolo Giacomelli, I. R. Kenyon, G. Thompson, D. Samyn, T. Redelberger, J. Streets, Ehud Duchovni, Michael Albrow, Richard Keeler, G. Fontaine, J. P. Porte, C.-E. Wulz, A. Taurok, Elizabeth Locci, S. Levegrün, M. Jimack, S. Beingessner, Claudia J. Stubenrauch, J. Sass, J. P. Mendiburu, A. Gonidec, J. P. Laugier, G. Salvini, B. Van Eijk, Peter Watkins, G. Busetto, K. Sumorok, Carmen Albajar, L. Gately, E. Eisenhandler, D. Summers, K. Wacker, P. Petta, R. J. Homer, P. Erhard, Th. Müller, David B. Cline, W. Jank, Margret Fincke-Keeler, V. Vuillemin, C. Rubbia, Y. Giraud-Héraud, H. F. Hoffmann, B. Aubert, D. J. Holthuizen, G.H. Grayer, I. ten Have, J. P. Merlo, Manfred Krammer, Anna Teresa Meneguzzo, Dave Charlton, T. Wyatt, T. P. Shah, X. Wu, J. P. Lees, H. D. Wahl, G. Cox, F. Ghio, W. Kienzle, Kenneth Long, D. Robinson, S. Centro, A. Wildish, J. N. Bellinger, T. Markiewicz, N. Zaganidis, Jorma Tuominiemi, M. Demoulin, H. von der Schmitt, Charling Tao, J. Garvey, D. Dau, M. Della Negra, R. Leuchs, J. Rohlf, S. Geer, A. Honma, P. Ghez, P. Cennini, C. Bacci, Josef Strauss, K. Eggert, R. Frühwirth, G. Bunce, P. Nedelec, Akram Khan, P. Colas, Nicolas Ellis, H. Grassmann, D. Kryn, Alain Givernaud, A. Kernan, K. Bos, E. Buckley, Sergio Cittolin, Asoke K. Nandi, F. Szoncso, W. von Schlippe, C. Zaccardelli, Bruce Denby, and P. Catz
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Large Hadron Collider, Proton, Electric charge, law.invention, Nuclear physics, law, Antiproton, Charm (quantum number), Collider, Mixing (physics)
Abstract: We report on a search for B0↔B¯0 oscillations (mixing) using events with two identified muons from data collected at the CERN p¯p collider. In the absence of B0↔B¯0 oscillations, dimuons coming directly from decays of beauty-antibeauty paris must have opposite signs. Like-sign dimuons are expected from events where one muon arises from beauty decay and the other from the charm decay of the associated beauty-charm cascade. Taking these processes into account, together with the contribution from charm production, the predicted ratio of like-sign to unlike-sign muon pairs is 0.26±0.03. Experimentally we measure 0.42±0.07±0.03. A natural explanation for the excess of like-sign events is the existence of a significant amount of B0↔B¯0 transitions. The fraction of beauty particles that produce first-generation decay muons with the opposite electric charge from that expected without mixing is deduced to be: χ = 0.121±0.047. Combined with the null result from searches for B0↔B¯0 oscillations at e+e− colliders, our results are consistent with transitions inthe B0s system, as favoured theoretically.
Published: 1987

35. Further evidence for charged intermediate vector bosons at the SPS collider

Author: G. Maurin, P. Ghez, D. DiBitonto, G. Sajot, A. Gonidec, A. Placci, Josef Strauss, J. P. Lees, W.R. Gibson, J. Saudraix, Veikko Karimäki, T. J. V. Bowcock, Michel Spiro, A. Di Ciaccio, D. Dau, P.I.P. Kalmus, M.-N. Minard, D. Dallman, L. Paoluzi, B. Sadoulet, D. Schinzel, J. Streets, D. Kryn, W. G. Scott, Charling Tao, W.J. Haynes, C. Bacci, A. Bezaguet, D. J. Holthuizen, G.H. Grayer, A. Lévêque, M. Della Negra, H. Muirhead, A. Honma, S. Centro, Nicolas Ellis, E. Zurfluh, M. Fincke, A. Orkin-Lecourtois, J. Colas, J. P. Revol, Y. Xie, M. Demoulin, C. Ghesquiere, C. Roberts, P. Cennini, M. Corden, G. Thompson, David J. Smith, A. Norton, E. Tscheslog, Thomas W. Markiewicz, T. Hansl-Kozanecka, Richard Wilson, Y. Giraud-Héraud, G. Piano Mortari, G.T.J. Arnison, Alain Givernaud, J. Vrana, J. P. Mendiburu, Ritva Kinnunen, M. Pimiä, P. M. Watkins, M. Calvetti, T.P. Shah, L. Dobrzynski, K. Eggert, R. Frühwirth, B. Van Eijk, Paolo Rossi, G. Jorat, J. Garvey, J. D. Dowell, E. Pietarinen, Michael Rijssenbeek, A. Savoy-Navarro, James Rohlf, R. K. Bock, W. Jank, J. Sass, J. Ransdell, Felicitas Pauss, Filippo Ceradini, Dirk L. Hoffmann, K. Morgan, G. Salvini, R. Leuchs, Richard Keeler, R. J. Homer, W. Kozanecki, H. Faissner, M. Mohammadi, B. Aubert, D. Linglin, M. Debeer, T. J. McMahon, H. D. Wahl, A. Kernan, J. S. Wilson, S. Geer, I. R. Kenyon, P. Erhard, G. Salvi, H. Lehmann, M. Moricca, C.-E. Wulz, Konstanty Sumorok, Elizabeth Locci, J. P. Laugier, R. Frey, Francesco Lacava, H. F. Hoffmann, L.O. Hertzberger, K.L. Giboni, David B. Cline, G. Fontaine, E. Eisenhandler, L. Naumann, F. Muller, Hans Reithler, J. Timmer, C. Rubbia, G. Bauer, P. Catz, E. Radermacher, J. P. Porte, M. Yvert, A. Astbury, V. Vuillemin, Jorma Tuominiemi, J.P. Vialle, Sergio Cittolin, Daniel Denegri, C. Cochet, J. Rich, Asoke K. Nandi, J. J. Malosse, F. Szoncso, and C. Hodges
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Large Hadron Collider, Weinberg angle, Vector boson, Standard Model, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Collider, Particle Physics - Experiment
Abstract: A sample of 52 Intermediate Vector Boson decays in the ( v e e) channel is described. They were produced at the CERN SPS Collider for an integrated luminosity of 0.136 pb −1 . Both production and decay properties fit well with expectations from the Standard Model of weak interactions. An improved value for the W mass is given and compared with the previously published value for the Z 0 mass.
Published: 1985

36. Search for centauro like events at the CERN proton-antiproton collider

Author: Y. Giraud-Héraud, J. P. Lees, Ludwik Dobrzynski, G. Pianomortari, Charling Tao, M. Della Negra, G.T.J. Arnison, A. Honma, T. J. V. Bowcock, M.-N. Minard, C. Rubbia, B. Sadoulet, D. Dallman, D. Schinzel, J. Ciboroski, P. Ghez, M. Loret, Ritva Kinnunen, M. Pimiä, B. Aubert, P. M. Watkins, J. Saudraix, H. Kowalski, M.J. Corden, R. Frey, Francesco Lacava, L.O. Hertzberger, K.L. Giboni, L. Paoluzi, G. Maurin, A. Bezaguet, Josef Strauss, S. d'Angelo, R. Fruehwirth, Nicolas Ellis, H. Muirhead, Daniel Denegri, G.H. Grayer, A. Orkin-Lecourtois, J. Ransdell, J. Sass, H. F. Hoffmann, J. J. Malosse, Michel Spiro, S. Centro, D. DiBitonto, R. Bernabei, T. Hansl-Kozanecka, E. Tscheslog, W.J. Haynes, C. Hodges, M. Demoulin, A. Gonidec, A. Astbury, J. P. Mendiburu, Sergio Cittolin, C. Bacci, R. Haidan, M. Yvert, D.J. Holthuizen, Alain Givernaud, Elizabeth Locci, Asoke K. Nandi, A.M. Cnops, P.I.P. Kalmus, J. P. Laugier, A. Lévêque, F. Szoncso, A. Placci, M. Debeer, T. J. McMahon, E. Zurfluh, J.P. Vialle, Jorma Tuominiemi, A. Savoy-Navarro, C. Cochet, S. Geer, I. R. Kenyon, G. Salvini, P. Erhard, G. Salvi, M. C. Edwards, K. Eggert, R. Leuchs, Richard Keeler, M. Moricca, Konstanty Sumorok, Thomas W. Markiewicz, G. Sajot, W.R. Gibson, J. Colas, A. Norton, T. Carroll, Phillip Gutierrez, W. G. Scott, G. Thompson, D. Kryn, G. Fontaine, E. Eisenhandler, P. Catz, C. Chesquiere, J. Timmer, R. Boeck, J. Garvey, J. D. Dowell, Filippo Ceradini, Hans Reithler, A. Kernan, R. J. Homer, W. Kozanecki, H. Faissner, D. Linglin, Dirk L. Hoffmann, H. D. Wahl, H. Lehmann, V. Karimaeki, L. Naumann, F. Muller, E. Radermacher, J. S. Wilson, M. Calvetti, T.P. Shah, J.P. Fournier, Michael Rijssenbeek, W. Jank, J. Vrana, James Rich, C. Roberts, V. Vuillemin, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), UA1, and BOMBAR, Claudine
Subjects: Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Proton, Physics::Instrumentation and Detectors, Cosmic ray, 01 natural sciences, Settore FIS/04 - Fisica Nucleare e Subnucleare, law.invention, Nuclear physics, law, 0103 physical sciences, Energy spectrum, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Collider, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Settore FIS/01 - Fisica Sperimentale, Detector, Charged particle, Antiproton, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract: A search for events having the characteristics of cosmic ray Centauros has been made in 540 GeV centre of mass proton-antiproton collisions, using information on charged particle multiplicities and transverse momenta from our central detector image chamber, together with energy deposition in our calorimeters. No such events were found in 48 000 low bias events.
Published: 1983

37. Events with large missing transverse energy at the cern collider: II. search for the decays of W± into heavy leptons and of Z0 into non-interacting particles

Author: G. Busetto, C. Bacci, A. Taurok, A. Bezaguet, P. Nedelec, John Wilson, Jacqueline Batley, Paolo Rossi, L. Dobrzynski, B. Aubert, Akram Khan, P. Colas, R. Frühwirth, M. Degiorgi, S. Tether, Felicitas Pauss, Nicolas Ellis, Filippo Ceradini, K. Eggert, E. Petrolo, G. Sajot, E. Tscheslog, H. F. Hoffmann, Daniel J. Smith, V. Vuillemin, W. von Schlippe, Veikko Karimäki, O. C. Allkofer, J. P. Mendiburu, P. Petta, J. Rohlf, A. Wildish, Sergio Cittolin, W.R. Gibson, P. Kyberd, P. I. P. Kalmus, S. Levegrün, C.-E. Wulz, Elizabeth Locci, Th. Müller, D. Linglin, P. Ghez, J. Kroll, Paolo Giacomelli, W. Jank, C. Zaccardelli, Alain Givernaud, J. P. Laugier, D. Pitman, A. Astbury, Bruce Denby, P. Catz, L. Villasenor, G.T.J. Arnison, J. Dorenbosch, A. Savoy-Navarro, Pierluigi Zotto, Asoke K. Nandi, E. Radermacher, F. Szoncso, G. Maurin, T. Redelberger, E. Buckley, Y. Giraud-Héraud, Richard Keeler, T. Wyatt, Anna Teresa Meneguzzo, Dave Charlton, Michael Levi, W. Ruhm, Josef Strauss, Tejinder Virdee, J. P. Lees, R. J. Homer, K. Wacker, R. Frey, Francesco Lacava, David B. Cline, M. Pimiä, Alessandro Bettini, G. Thompson, R. Leuchs, C. Rubbia, C. Perault, J. Streets, Manfred Krammer, H. Faissner, D. Clarke, Ritva Kinnunen, G. Bauer, Claudia J. Stubenrauch, G. Bunce, Margret Fincke-Keeler, E. Pietarinen, Daniel Denegri, A. Gonidec, T. C. Meyer, J. P. Debrion, N. Zaganidis, A. Schwartz, I. Siotis, G. Salvini, S. Li, A. Placci, B. Mours, W.J. Haynes, K. Sumorok, Hans Reithler, D. Gee, H. D. Wahl, M. Debeer, M.J. Corden, S. J. Haywood, G. Cox, D. Pascoli, Carmen Albajar, I. Wingerter, M. Moricca, J. P. Revol, T. P. Shah, A. Kernan, F. Ghio, T. Markiewicz, J. P. Merlo, J. N. Bellinger, M.-N. Minard, R. Edgecock, D. Samyn, L. Naumann, Kenneth Long, Ehud Duchovni, J. Vrana, W. Kienzle, K. Bos, I. R. Kenyon, D. Schinzel, K. Morgan, M. Yvert, Charling Tao, Stephen Wimpenny, I. F. Fensome, P. Flynn, A. Diciaccio, John A Coughlan, P. Sphicas, M. Markytan, N. Bains, D. Dau, C. Pigot, L. Zanello, M. Jimack, M. Della Negra, J. Garvey, S. Geer, A. Honma, Christopher Seez, J. Colas, S. Beingessner, D. J. Holthuizen, G.H. Grayer, C. Cochet, G. Ciapetti, M. Ikeda, D. Summers, Randall Sobie, A. Norton, J.P. Vialle, X. Wu, Jorma Tuominiemi, G. Piano Mortari, J. P. Porte, D. Robinson, C. Ghesquiere, G. Fontaine, P. Erhard, S. Centro, B. Van Eijk, Peter Watkins, M. Demoulin, E. Eisenhandler, I. Zacharov, H. von der Schmitt, J. D. Dowell, T. Axon, Jeffrey Richman, A. Geiser, L. Gately, T. C. Bacon, I. ten Have, M. Mohammadi, Michael Albrow, W. G. Scott, G. Jorat, I. Sheer, C. Markou, P. Cennini, J. Sass, H. Grassmann, D. Kryn, and H. G. Moser
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, High Energy Physics::Phenomenology, UA1 experiment, law.invention, Standard Model, Nuclear physics, Transverse plane, law, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Collider, Event (particle physics), Lepton
Abstract: We report on further analysis of events with large missing transverse energy from 715 nb −1 of data from the UA1 experiment at the CERN proton-antiproton collider. Measured W and Z 0 rates and heavy flavour cross sections are used to predict rates of missing transverse energy event from all known standard model process. Limits are derived on two possible new sources, namely: (1) semi-hadronic decays of a fourth sequential charged heavy lepton coupling to the W boson, (2) Z 0 decays into additional pairs of non-interacting particles. After taking into additional pairs of non-interacting particles. After taking into account all known sources of missing transverse energy events, we find a mass limit on a fourth-generation charged lepton of m L >41 GeV / c 2 (90% CL) and a limit on the number of additional neutrino species of n ⩽7 (90% CL).
Published: 1987

38. Search for massive eνγ and μνγ final states at the CERN super proton synchrotron collider

Author: G. Arnison, A. Astbury, B. Aubert, C. Bacci, G. Bauer, A. Bézaguet, R.K. Bock, T.J.V. Bowcock, M. Calvetti, P. Catz, P. Cennini, S. Centro, F. Ceradini, S. Cittolin, D. Cline, C. Cochet, J. Colas, M. Corden, D. Dallman, D. Dau, M. DeBeer, M. Della Negra, M. Demoulin, D. Denegri, A. Di Ciaccio, D. DiBitonto, L. Dobrzynski, J.D. Dowell, K. Eggert, E. Eisenhandler, N. Ellis, P. Erhard, H. Faissner, M. Fincke, G. Fontaine, R. Frey, R. Frühwirth, J. Garvey, S. Geer, C. Ghesquière, P. Ghez, K.L. Giboni, W.R. Gibson, Y. Giraud-Héraud, A. Givernaud, A. Gonidec, G. Grayer, T. Hansl-Kozanecka, W.J. Haynes, L.O. Hertzberger, C. Hodges, D. Hoffmann, H. Hoffmann, D.J. Holthuizen, R.J. Homer, A. Honma, W. Jank, G. Jorat, P.I.P. Kalmus, V. Karimäki, R. Keeler, I. Kenyon, A. Kernan, R. Kinnunen, W. Kozanecki, D. Kryn, F. Lacava, J.-P. Laugier, J.-P. Lees, H. Lehmann, R. Leuchs, A. Lévêque, D. Linglin, E. Locci, J.-J. Malosse, T. Markiewicz, G. Maurin, T. McMahon, J.-P. Mendiburu, M.-N. Minard, M. Mohammadi, M. Moricca, K. Morgan, H. Muirhead, F. Muller, A.K. Nandi, L. Naumann, A. Norton, A. Orkin-Lecourtois, L. Paoluzi, F. Pauss, G. Piano Mortari, E. Pietarinen, M. Pimiä, A. Placci, J.P. Porte, E. Radermacher, J. Ransdell, H. Reithler, J.-P. Revol, J. Rich, M. Rijssenbeek, C. Roberts, J. Rohlf, P. Rossi, C. Rubbia, B. Sadoulet, G. Sajot, G. Salvi, G. Salvini, J. Sass, J. Saudraix, A. Savoy-Navarro, D. Schinzel, W. Scott, T.P. Shah, D. Smith, M. Spiro, J. Strauss, J. Streets, K. Sumorok, F. Szoncso, C. Tao, G. Thompson, J. Timmer, E. Tscheslog, J. Tuominiemi, B. Van Eijk, J.-P. Vialle, J. Vrana, V. Vuillemin, H.D. Wahl, P. Watkins, J. Wilson, R. Wilson, C.-E. Wulz, Y.G. Xie, M. Yvert, and E. Zurfluh
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Muon, Large Hadron Collider, Luminosity (scattering theory), Elementary particle, Super Proton Synchrotron, law.invention, Nuclear physics, law, Radiative transfer, Physics::Accelerator Physics, High Energy Physics::Experiment, Collider, Lepton
Abstract: The observation of an apparent excess of radiative Z 0 decays into e + e − γ and μ + μ − γ has prompted the search for massive eνγ and μνγ final states containing an energetic photon. No events were found other than those consistent with QED radiative effects in leptonic W decays. The data sample corresponds to an integrated luminosity of 0.136 pb −1 produced at the CERN super proton synchrotron (SPS) collider. An upper limit on the occurrence of such events is given.
Published: 1984

39. Elastic and total cross section measurement at the CERN proton-antiproton collider

Author: L. Dobrzynski, G. Y. Xie, A. Diciaccio, P.I.P. Kalmus, Filippo Ceradini, G. Jorat, J. Ransdell, P. Sievers, D. Linglin, A. Orkin-Lecourtois, David J. Smith, Hans Reithler, M. Loret, David B. Cline, G. Bauer, R. J. Homer, Elizabeth Locci, J. P. Laugier, C. Rubbia, R. Bossart, J. Timmer, L. Paoluzzi, J. Saudraix, H. Kowalski, J. Garvey, Charling Tao, W.J. Haynes, Paolo Rossi, R. Frühwirth, M. Della Negra, J. D. Dowell, E. Radermacher, E. Tscheslog, R. K. Bock, M. Yvert, G. Fontaine, A. Honma, T. Hansl-Kozanecka, Daniel Denegri, C. Ghesquiere, G. Maurin, G.T.J. Arnison, A. Lévêque, J. P. Lees, J. P. Mendiburu, Dirk L. Hoffmann, E. Eisenhandler, H. D. Wahl, D. J. Holthuizen, G.H. Grayer, T. J. V. Bowcock, B. Sadoulet, W. G. Scott, P. Cennini, C. Bacci, E. Zurfluh, K. Eggert, Ritva Kinnunen, J. Rich, A. Kernan, J. Colas, S. Centro, Michel Spiro, A. Astbury, Y. Giraud-Héraud, M. Pimiä, P. M. Watkins, J. J. Malosse, Michael Rijssenbeek, P. Catz, M. Demoulin, P. Ghez, M. Corden, H. Lehmann, A. Norton, M.-N. Minard, G. Sajot, W. Jank, L. Evans, D. Dallman, Josef Strauss, W.R. Gibson, G. Piano Mortari, D. Schinzel, D. Kryn, J. Sass, Nicolas Ellis, A. Bezaguet, J. Vrana, G. Thompson, J.P. Vialle, V. Vuillemin, A. Savoy-Navarro, R. Leuchs, Richard Keeler, H. Muirhead, W. Kozanecki, H. Faissner, M. Moricca, Konstanty Sumorok, H. F. Hoffmann, G. Vismara, G. von Holtey, Sergio Cittolin, Jorma Tuominiemi, C. Roberts, M. Calvetti, Alain Givernaud, Veikko Karimäki, T.P. Shah, Asoke K. Nandi, F. Szoncso, Thomas W. Markiewicz, James Rohlf, K. Morgan, R. Frey, Francesco Lacava, G. Salvini, T. Carroll, L.O. Hertzberger, K.L. Giboni, Phillip Gutierrez, C. Cochet, J. P. Revol, J. S. Wilson, D. DiBitonto, A. Gonidec, A. Placci, B. Aubert, J. Bosser, M. Debeer, T. J. McMahon, S. Geer, I. R. Kenyon, P. Erhard, G. Salvi, M. C. Edwards, L. Naumann, F. Muller, M. Rabany, R. Desalvo, and C. Hodges
Subjects: Elastic scattering, Physics, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, Large Hadron Collider, Luminosity (scattering theory), Proton, Optical theorem, law.invention, Nuclear physics, law, Antiproton, Collider, Particle Physics - Experiment
Abstract: Proton-antiproton elastic scattering at CM energy 540 GeV has been studied in the t -range 0.04 t 2 . The data are well fitted by the form exp ( bt ) with b = 17.1 ± 1.0 GeV −2 for | t | = 0.04 − 0.18 GeV su 2 and b = 13.7 ± 0.2 ± 0.2 GeV −2 for | t | = 0.21−0.45 GeV 2 . A luminosity measurement combined with the optical theorem gives σ tot = 67.6 ± 5.9 ± 2.7 mb and σ e1 / σ tot = 0.209 ± 0.018 ± 0.008.
Published: 1983

40. Production of W's with large transverse momentum at the CERN proton-antiproton collider

Author: A. Astbury, L. Dobrzynski, H. von der Schmitt, David B. Cline, G. Jorat, D. J. Holthuizen, G.H. Grayer, I. Sheer, E. Tscheslog, Daniel J. Smith, T. Markiewicz, Richard Keeler, D. Robinson, Charling Tao, S. Centro, J.P. Vialle, M. Degiorgi, Christian Ghiglino, D. Dau, M. Della Negra, W. Ruhm, K. Wacker, Christopher Seez, Jacqueline Batley, S. Geer, A. Honma, Alessandro Bettini, G. Thompson, M. Yvert, M. Demoulin, C. Markou, P. Sphicas, N. Bains, Hans Reithler, Manfred Krammer, A. Savoy-Navarro, L. Gately, Elizabeth Locci, D. Gee, J. Dorenbosch, J. Colas, K. Morgan, J. P. Laugier, S. Levegrün, E. Pietarinen, Daniel Denegri, A. Placci, J. P. Mendiburu, C. Ghesquiere, P. Erhard, T. C. Bacon, M. Debeer, G. Sajot, I. ten Have, W.R. Gibson, J. P. Debrion, J. P. Porte, J. Sass, C. Cochet, R. Edgecock, A. Diciaccio, Y. Giraud-Héraud, T. Wyatt, P. Nedelec, G. Ciapetti, Felicitas Pauss, Akram Khan, K. Bos, P. Colas, M. Ikeda, I. R. Kenyon, Michael Albrow, P.I.P. Kalmus, Anna Teresa Meneguzzo, Dave Charlton, V. Vuillemin, Filippo Ceradini, A. Norton, K. Sumorok, K. Eggert, W. G. Scott, D. Linglin, E. Petrolo, S. Beingessner, L. Villasenor, C. Rubbia, J. Kroll, Nicolas Ellis, G. Piano Mortari, G. Bauer, T. C. Meyer, G. Maurin, G.T.J. Arnison, M. Pimiä, D. Clarke, N. Zaganidis, X. Wu, G. Cox, M.-N. Minard, A. Kernan, P. Cennini, B. Aubert, Kenneth Long, Alain Givernaud, D. Schinzel, M. Moricca, Jorma Tuominiemi, J. D. Dowell, H. Faissner, J. P. Revol, John A Coughlan, Ritva Kinnunen, S. Li, I. F. Fensome, P. Flynn, B. Mours, Randall Sobie, M. Markytan, A. Wildish, M.J. Corden, S. J. Haywood, R. J. Homer, I. Wingerter, M. Mohammadi, Margret Fincke-Keeler, I. Zacharov, Sergio Cittolin, B. Van Eijk, Peter Watkins, Asoke K. Nandi, F. Szoncso, T. Axon, Jeffrey Richman, H. D. Wahl, T. P. Shah, J. N. Bellinger, L. Naumann, A. Geiser, C. Pigot, P. Kyberd, W. Kienzle, J. Garvey, Tejinder Virdee, R. Frey, Francesco Lacava, C. Perault, D. Pascoli, D. Samyn, Ehud Duchovni, M. Jimack, J. Vrana, J. Streets, Claudia J. Stubenrauch, A. Gonidec, G. Salvini, Stephen Wimpenny, L. Zanello, Paolo Rossi, P. Petta, Th. Müller, W. Jank, Veikko Karimäki, Pierluigi Zotto, H. Grassmann, D. Kryn, A. Schwartz, I. Siotis, W.J. Haynes, A. Taurok, Carmen Albajar, S. Tether, J. P. Merlo, H. G. Moser, G. Busetto, C. Bacci, A. Bezaguet, John Wilson, Claudia-Elisabeth Wulz, P. Ghez, H. F. Hoffmann, J. P. Lees, E. Radermacher, Josef Strauss, R. Leuchs, O. C. Allkofer, G. Pancheri, J. Rohlf, G. Fontaine, D. Summers, T. Redelberger, E. Buckley, E. Eisenhandler, W. von Schlippe, C. Zaccardelli, Bruce Denby, and P. Catz
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Proton, Hadron, UA1 experiment, law.invention, Nuclear physics, Transverse plane, Antiproton, law, High Energy Physics::Experiment, Nuclear Experiment, Collider, Particle Physics - Experiment
Abstract: We have measured the W transverse momentum distribution (pTW) using a sample of 323 W → eν and W → μν events produced in proton-antiproton collisions at the CERN collider. In the present letter we extend the study of the distribution up to pTW ∼- m W and compare to leading and higher order QCD. This comparison is a precise test of QCD with hadron colliders and the inclusive spectrum gives good agreement over a large range of pTW. However we observed two events at very large pTW (∼- 100 GeV/c) in which the W candidate recoils against an energetic di-jet system. Both events have a very large missing transverse energy and a jet-jet mass compatible with the W mass. In a separate analysis, a topologically similar event has been observed in which a high-mass di-jet system is balanced by a large missing transverse energy which could be interpreted as Z0 → ν ν decay. We cannot easily explain these three events in terms of explicit second-order QCD calculations. However we cannot exclude at this stage the possibility that they are the result of non-gaussian fluctuations in the response of UA1 calorimetry or a statistical fluctuation in the data.
Published: 1987

41. Observation of Jets in high transverse energy events at the Cern Proton Antiproton collider

Author: J. Colas, G.T.J. Arnison, J. Garvey, J. D. Dowell, R. K. Bock, H. D. Wahl, G. Sajot, H. Lehmann, W. G. Scott, M. Corden, Filippo Ceradini, W.R. Gibson, R. J. Homer, G. Maurin, P. Catz, P. Ghez, C. Rubbia, Daniel Denegri, H. Kowalski, A. Norton, L. Dobrzynski, A. Lévĕque, V. Vuillemin, G. Piano Mortari, Michael Rijssenbeek, G. Thompson, J. Rich, J. J. Malosse, Josef Strauss, Ritva Kinnunen, M. Pimiä, G. Fontaine, D. Kryn, B. Sadoulet, L. Naumann, F. Muller, E. Eisenhandler, A. Bezaguet, Milene Calvetti, P. M. Watkins, C. Hodges, Thomas W. Markiewicz, M.-N. Minard, W. Jank, M. Yvert, D. Dallman, P.I.P. Kalmus, Veikko Karimäki, R. Leuchs, Richard Keeler, J. Timmer, H. F. Hoffmann, D. Schinzel, Sergio Cittolin, L. Paoluzi, T. Carroll, Jorma Tuominiemi, Michel Spiro, E. Zurfluh, C. Cochet, Dirk L. Hoffmann, K. Eggert, S. d'Angelo, Asoke K. Nandi, Nicolas Ellis, J. Ransdell, F. Szoncso, M. Moricca, Phillip Gutierrez, T. Hansl-Kozanecka, Konstanty Sumorok, J. P. Revol, A. Kernan, R. Frühwirth, W. J. Haynes, R. Bernabei, J. P. Mendiburu, A. Savoy-Navarro, E. Tscheslog, C. Roberts, G. Salvini, Alain Givernaud, C. Bacci, J. Sass, J. P. Lees, D. Linglin, A. Orkin-Lecourtois, T. J. V. Bowcock, Hans Reithler, T. P. Shah, W. Kozanecki, H. Faissner, J. S. Wilson, J. Vrana, Elizabeth Locci, A. Astbury, E. Radermacher, J. P. Laugier, L. O. Hertzberger, R. Frey, Francesco Lacava, K.L. Giboni, J.P. Vialle, C. Ghesquiere, J. Saudraix, Y. Giraud-Héraud, D. J. Holthuizen, G.H. Grayer, S. Centro, M. Demoulin, M. Della Negra, A. Honma, D. DiBitonto, A. Gonidec, A. Placci, B. Aubert, M. Debeer, T. J. McMahon, S. Geer, I. R. Kenyon, P. Erhard, G. Salvi, and M. C. Edwards
Subjects: Quantum chromodynamics, Physics, jets, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Mass distribution, Proton, Calorimeter (particle physics), Proton Antiproton collider, jets, CERN, Astrophysics::High Energy Astrophysical Phenomena, Settore FIS/01 - Fisica Sperimentale, Proton Antiproton collider, Jet (particle physics), law.invention, Settore FIS/04 - Fisica Nucleare e Subnucleare, Nuclear physics, law, Antiproton, CERN, High Energy Physics::Experiment, Nuclear Experiment, Collider, Particle Physics - Experiment
Abstract: With a segmented total absorption calorimeter of large acceptance, we have measured the total transverse energy spectrum for pp collisions at s 1 2 = 540 GeV up to ΣE T = 130 GeV in the pseudo-rapidity range | η | ΣE T > 40 GeV , the fraction of events with two jets increases with Σ E T ; this event structure is dominant for ΣE T > 100 GeV. We measure the inclusive jet cross section up to E T (jet) = 60 GeV and the two-jets mass distribution to 120 GeV/ c 2 . The measured cross sections are compatible with the predictions of hard scattering models based on QCD.
Published: 1983

42. Measurement of the inclusive jet cross section at the CERN p collider

Author: G. Arnison, M.G. Albrow, O.C. Allkofer, A. Astbury, B. Aubert, C. Bacci, J.R. Batley, G. Bauer, A. Bettini, A. Bézaguet, R.K. Bock, K. Bos, E. Buckley, J. Bunn, G. Busetto, P. Catz, P. Cennini, S. Centro, F. Ceradini, G. Ciapetti, S. Cittolin, D. Clarke, D. Cline, C. Cochet, J. Colas, P. Colas, M. Corden, G. Cox, D. Dallman, D. Dau, M. Debeer, J.P. Debrion, M. Degiorgi, M. Della Negra, M. Demoulin, B. Denby, D. Denegri, A. Diciaccio, L. Dobrzynski, J. Dorenbosch, J.D. Dowell, E. Duchovni, R. Edgecock, K. Eggert, E. Eisenhandler, N. Ellis, P. Erhard, H. Faissner, M. Fince Keeler, P. Flynn, G. Fontaine, R. Frey, R. Frühwirth, J. Garvey, D. Gee, S. Geer, C. Ghesquière, P. Ghez, F. Ghio, P. Giacomelli, W.R. Gibson, Y. Giraud-Héraud, A. Givernaud, A. Gonidec, M. Goodman, H. Grassmann, G. Grayer, W. Guryn, T. Hansl-Kozanecka, W. Haynes, S.J. Haywood, H. Hoffmann, D.J. Holthuizen, R.J. Homer, A. Honma, W. Jank, M. Jimack, G. Jorat, P.I.P. Kalmus, V. Karimäri, R. Keeler, I. Kenyon, A. Kernan, W. Kienzle, R. Kinnunen, W. Kozanecki, J. Kroll, D. Kryn, P. Kyberd, F. Lacava, J.P. Laugier, J.P. Lees, R. Leuchs, S. Levegrun, A. Lévêque, M. Levi, D. Linglin, E. Locci, K. Long, T. Markiewicz, M. Markytan, T. Martin, F. Maurin, T. McMahon, J.-P. Mendiburu, A. Meneguzzo, O. Meyer, T. Meyer, M.-N. Minard, M. Mohammadi, K. Morgan, M. Moricca, H. Moser, B. Mours, Th. Muller, A. Nandi, L. Naumann, A. Norton, L. Paoluzi, D. Pascoli, F. Pauss, C. Perault, G. Piano Mortari, E. Pietarinen, C. Pigot, M. Pimiä, D. Pitman, A. Placci, J.-P. Porte, E. Radermacher, J. Ransdell, T. Redelberger, H. Reithler, J.P. Revol, J. Richman, M. Rijssenbeek, J. Rohlf, P. Rossi, C. Roberts, W. Ruhm, C. Rubbia, G. Sajot, G. Salvini, J. Sass, B. Sadoulet, D. Samyn, A. Savoy-Navarro, D. Schinzel, A. Schwartz, W. Scott, T.P. Shah, I. Sheer, I. Siotis, D. Smith, R. Sobie, P. Sphicas, J. Strauss, J. Streets, C. Stubenrauch, D. Summers, K. Sumorok, F. Szonczo, C. Tao, I. Ten Have, G. Thompson, E. Tscheslog, J. Tuominiemi, B. Van Eijk, P. Verecchia, J.P. Vialle, T.S. Virdee, H. Von Der Schmitt, W. Von Schlippe, J. Vrana, V. Vuillemin, H.D. Wahl, P. Watkins, R. Wilke, J. Wilson, I. Wingerter, S.J. Wimpenny, C.-E. Wulz, T. Wyatt, M. Yvert, I. Zacharov, N. Zaganidis, L. Zanello, and P. Zotto
Subjects: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, 010308 nuclear & particles physics, Jet (particle physics), 7. Clean energy, 01 natural sciences, UA1 experiment, law.invention, Nuclear physics, Cross section (physics), law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider, Scaling
Abstract: The inclusive jet cross section has been measured in the UA1 experiment at the CERN p p Collider at centre-of-mass energies √s = 546 GeV and √s = 630 eV. The cross sections are found to be consistent with QCD predictions, The observed change in the cross section with the centre-of-mass energy √s is accounted for in terms of xT scaling.
Published: 1986

43. High transverse momentum J/ψ production at the CERN proton-antiproton collider

Author: Felicitas Pauss, M. Ikeda, Filippo Ceradini, J. Kroll, G. Maurin, T. P. Shah, V. Vuillemin, David B. Cline, M. Pimiä, D. Clarke, J. Colas, G. Walzel, A. Norton, G. Piano Mortari, B. Van Eijk, W. Kienzle, W. Ruhm, Emilio Petrolo, P. Nedelec, A. Schwartz, I. Siotis, J. D. Dowell, M. Markytan, E. Tscheslog, Daniel J. Smith, O. C. Allkofer, Tejinder Virdee, W.J. Haynes, I. Zacharov, Hans Reithler, D. Gee, K. Morgan, S. Tether, R. K. Keeler, Jacqueline Batley, Nicolas Zaganidis, Francesco Lacava, Akram Khan, P. Colas, Carmen Albajar, M. Yvert, P. Sphicas, N. Bains, J. Rohlf, T. C. Meyer, C. Markou, A. Placci, C. Perault, K. Eggert, John A Coughlan, E. Radermacher, J. P. Porte, G. Cox, J. P. Merlo, Teresa Rodrigo, P. I. P. Kalmus, T. Axon, Jeffrey Richman, A. Geiser, Kenneth Long, Nicolas Ellis, T. Markiewicz, M.-N. Minard, J. P. Lees, Ritva Kinnunen, P. M. Watkins, Veikko Karimäki, G. Fontaine, B. Aubert, D. Schinzel, X. Wu, K. Sumorok, S. Li, G. Sajot, J. Sass, Charling Tao, R. Leuchs, C. Cochet, D. Samyn, B. Mours, A. Astbury, D. Dau, J. Dorenbosch, A. Savoy-Navarro, M. Della Negra, Ehud Duchovni, J. P. Mendiburu, P. Ghez, Aleandro Nisati, Pierluigi Zotto, M.J. Corden, S. J. Haywood, S. Geer, A. Honma, Jorma Tuominiemi, M. Jimack, E. Eisenhandler, A. Wildish, D. Linglin, G. Ciapetti, J. N. Bellinger, I. Wingerter, Alain Givernaud, D. J. Holthuizen, G.H. Grayer, L. Villasenor, T. Redelberger, E. Buckley, Murrough Landon, W. von Schlippe, H. G. Moser, M. A. Marquina, K. Bos, Anna Teresa Meneguzzo, Dave Charlton, Josef Strauss, D. Robinson, H. von der Schmitt, R. Bonino, F. J. Diez Hedo, G. Busetto, M. Debeer, S. Levegrün, D. Summers, C. Bacci, M. Moricca, J. P. Revol, Alessandro Bettini, J. P. Debrion, Michael Albrow, A. Bezaguet, A. Ferrando, J. Garvey, C. Zaccardelli, Christopher Seez, S. Centro, Bruce Denby, M. Preischl, E. Pietarinen, Daniel Denegri, G. Thompson, J.P. Vialle, P. Catz, Y. Giraud-Héraud, T. Wyatt, L. Naumann, A. van Dijk, M. Demoulin, Christian Ghiglino, I. R. Kenyon, J. A. Wilson, M. Fincke-Keller, C. Pigot, S. Beingessner, L. Dobrzynski, A. Diciaccio, H. Faissner, T. C. Bacon, G. Jorat, P. Erhard, I. F. Fensome, P. Flynn, Randall Sobie, I. Sheer, I. ten Have, C. Rubbia, M. Schröder, Sergio Cittolin, M. Mohammadi, Asoke K. Nandi, G. Bauer, F. Szoncso, P. Cennini, A. Taurok, W. G. Scott, H. Grassmann, D. Kryn, M. Degiorgi, C.-E. Wulz, Elizabeth Locci, J. P. Laugier, R. Edgecock, J. Vrana, L. Zanello, Paolo Rossi, Th. Müller, W. Jank, J. Streets, Claudia J. Stubenrauch, A. Gonidec, G. Salvini, Stephen Wimpenny, K. Wacker, Manfred Krammer, C. Ghesouiere, and A. Kernan
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Proton, Branching fraction, Hadron, law.invention, Nuclear physics, law, Antiproton, Bound state, High Energy Physics::Experiment, Collider, Event (particle physics), Particle Physics - Experiment
Abstract: We have studied high transverse momentum J/ψ production in pp interactions at s=630 GeV. The measured cross section times branching fraction for J/ψ→μ+μ− production with pT⩾5 GeV/c and |y
Published: 1988

44. Hadronic jet production at the CERN proton-antiproton collider

Author: Filippo Ceradini, D. Kryn, G. Jorat, A. Kernan, R. J. Homer, B. Sadoulet, L. Paoluzi, J. Colas, W. J. Haynes, D. DiBitonto, A. Gonidec, J. Garvey, J. D. Dowell, E. Pietarinen, E. Tscheslog, R. K. Bock, A. Savoy-Navarro, R. Frühwirth, M. Loret, David J. Smith, T. Carroll, Nicolas Ellis, G.T.J. Arnison, A. Placci, W. Kozanecki, M. Debeer, M. Corden, H. Faissner, T. J. McMahon, H. D. Wahl, A. Norton, S. Geer, Ritva Kinnunen, M. Pimiä, P. M. Watkins, Alain Givernaud, G. Salvini, C. Roberts, H. Lehmann, I. R. Kenyon, J. Sass, P. Cennini, C. Bacci, P. Erhard, G. Piano Mortari, P. Ghez, Elizabeth Locci, G. Maurin, G. Salvi, J. P. Lees, T. J. V. Bowcock, J. P. Laugier, M.-N. Minard, R. Frey, Francesco Lacava, D. Dallman, A. Orkin-Lecourtois, W. G. Scott, Y. Giraud-Héraud, T. P. Shah, Phillip Gutierrez, D. Schinzel, P. Catz, Dirk L. Hoffmann, B. Aubert, R. Leuchs, K.L. Giboni, L. O. Hertzberger, C. Rubbia, Jorma Tuominiemi, Y. Xie, J. P. Revol, David B. Cline, Richard Keeler, Josef Strauss, G. Bauer, Michel Spiro, H. Kowalski, A. Bezaguet, H. F. Hoffmann, Sergio Cittolin, Charling Tao, M. Moricca, T. Hansl-Kozanecka, Konstanty Sumorok, J.P. Vialle, H. Muirhead, Asoke K. Nandi, M. Della Negra, C. Chesquiere, M. Yvert, V. Vuillemin, J. Saudraix, F. Szoncso, A. Honma, J. P. Mendiburu, J. Ransdell, Daniel Denegri, G. Thompson, J. Timmer, A. Di Ciaccio, Hans Reithler, J. Rich, J. J. Malosse, P.I.P. Kalmus, A. Astbury, G. Fontaine, C. Cochet, Veikko Karimäki, E. Radermacher, E. Eisenhandler, L. Naumann, D. J. Holthuizen, G.H. Grayer, A. Lévêque, F. Muller, E. Zurfluh, M. Calvetti, S. Centro, C. Hodges, P. Kyberd, James Rohlf, M. Demoulin, D. Linglin, J. S. Wilson, J. Vrana, Paolo Rossi, Michael Rijssenbeek, W. Jank, G. Sajot, W.R. Gibson, K. Eggert, Thomas W. Markiewicz, and L. Dobrzynski
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Jet (fluid), Large Hadron Collider, Proton, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, Hadron, Charged particle, law.invention, Nuclear physics, Antiproton, law, High Energy Physics::Experiment, Collider, Particle Physics - Experiment
Abstract: We present a detailed study of hadronic jets obtained in a data sample taken in the UA1 detector with a localized transverse energy trigger. We discuss the average shape of jets in terms of energy and charged particle content, and compare this to data generated in Monte Carlo programs. We further extend the previously reported inclusive jet cross section to the region of E T = 100 GeV. A comparison with theoretical models of cross sections for events with more than two jets is also given.
Published: 1983

45. Angular distributions for high-mass jet pairs and a limit on the energy scale of compositeness for quarks from the CERN pp̄ collider

Author: J. Vrana, T. C. Bacon, Felicitas Pauss, M. Ikeda, I. ten Have, L. Zanello, Filippo Ceradini, G.T.J. Arnison, J. Kroll, Paolo Giacomelli, M. Yvert, P. Sphicas, R. K. Keeler, J. Garvey, M. Goodman, R. K. Bock, R. J. Homer, Ritva Kinnunen, P. M. Watkins, E. Buckley, B. Mours, H. D. Wahl, D. J. Holthuizen, G.H. Grayer, Hans Reithler, J. N. Bellinger, D. Gee, C. Cochet, M.J. Corden, S. J. Haywood, I. Wingerter, P. Erhard, G. Ciapetti, G. Sajot, R. Wilke, Paolo Rossi, G. Bauer, D. Robinson, G. Maurin, A. Astbury, R. Frühwirth, A. Schwartz, S. Centro, D. Linglin, D. Pitman, O. Meyer, D. Clarke, G. Fontaine, L. Villasenor, I. Siotis, Sergio Cittolin, F. Ghio, C. Rubbia, A. Norton, M. Demoulin, P. Cennini, K. Morgan, J. D. Dowell, W. G. Scott, E. Eisenhandler, Michael Rijssenbeek, A. Kernan, Michael Albrow, John A Coughlan, Anton Taurok, H. Grassmann, M. Moricca, W. von Schlippe, D. Kryn, J. P. Revol, A. Placci, W.J. Haynes, T.I. Meyer, M.-N. Minard, Th. Müller, W. Jank, C. Zaccardelli, C. Ghesquiere, W. Kienzle, Bruce Denby, Kenneth Long, D. Schinzel, Philippe Ghez, P. Catz, K. Sumorok, L. Naumann, J. P. Porte, M. Debeer, C. Pigot, Stephen Wimpenny, S. Tether, B. Sadoulet, Asoke K. Nandi, T. Martin, F. Szoncso, Nicolas Zaganidis, P. Verecchia, Veikko Karimäki, Tejinder Virdee, T. J. McMahon, H. G. Moser, G. Busetto, Carmen Albajar, R. Frey, Francesco Lacava, C. Perault, H. Faissner, J.P. Vialle, H. von der Schmitt, T. P. Shah, A. Lévêque, J. R. Batley, P. Flynn, P. Colas, D. Pascoli, Pierluigi Zotto, A. Bezaguet, Ehud Duchovni, L. Dobrzynski, M. Jimack, K. Bos, W. R. Gibson, S. Levegrün, D. Summers, J. Streets, Claudia J. Stubenrauch, J. P. Mendiburu, W. Guryn, G. Salvini, V. Vuillemin, G. Jorat, I. Sheer, W. Kozanecki, M. Fincke Keeler, Anna Teresa Meneguzzo, E. Petrolo, I. Zacharov, Alessandro Bettini, G. Thompson, G.F. Cox, Nicolas Ellis, T. Hansl-Kozanecka, Y. Giraud-Héraud, T. Wyatt, C. Bacci, T. Axon, Jeffrey Richman, E. Radermacher, T. Markiewicz, Charling Tao, D. Dau, M. Della Negra, S. Geer, A. Honma, Alain Givernaud, D. Samyn, I. R. Kenyon, J. A. Wilson, Josef Strauss, J. Sass, Michael Levi, J. P. Lees, W. Ruhm, R. Leuchs, A. Gonidec, E. Pietarinen, Daniel Denegri, A. Diciaccio, B. Aubert, O. C. Allkofer, A. Wildish, Jorma Tuominiemi, J. Rohlf, R. J. Sobie, Manfred Krammer, H. F. Hoffmann, M. Pimiä, K. Eggert, T. Redelberger, E. Tscheslog, Daniel J. Smith, P. I. P. Kalmus, R. Edgecock, J. Ransdell, J. Dorenbosch, A. Savoy-Navarro, J. P. Debrion, M. Degiorgi, C.-E. Wulz, Elizabeth Locci, J. P. Laugier, David B. Cline, J. Colas, G. Piano Mortari, Paul Kyberd, M. Markytan, M. Mohammad, and B. Van Eijk
Subjects: Quark, Physics, Nuclear and High Energy Physics, Jet (fluid), Range (particle radiation), Particle physics, Large Hadron Collider, Scale (ratio), Astrophysics::High Energy Astrophysical Phenomena, Quark model, law.invention, Nuclear physics, Distribution (mathematics), law, High Energy Physics::Experiment, Collider, Particle Physics - Experiment
Abstract: Angular distributions of high-mass jet pairs (180 ( s =630 GeV ) . We show that angular distributions are independent of the subprocess centre-of-mass (CM) energy over this range, and use the data to put constraints on the definition of the Q2 scale. The distribution for the very high mass jet pairs (240 415 GeV at 95% confidence level.
Published: 1986

46. Study of heavy flavour production in events with a muon accompanied by jet(s) at the CERN proton-antiproton collider

Author: Alessandro Bettini, T. Bacon, D. Samyn, T. Redelberger, R. K. Keeler, G. Thompson, G. Cox, G. Walzel, Ehud Duchovni, W. Ruhm, Emilio Petrolo, O. C. Allkofer, A. Schwartz, Ritva Kinnunen, M. Jimack, J. Rohlf, Kenneth Long, I. Siotis, Hans Reithler, D. Gee, David B. Cline, G. Busetto, A. Taurok, Nicolas Zaganidis, W.J. Haynes, M. Yvert, P. Sphicas, S. Li, B. Mours, M.J. Corden, S. J. Haywood, N. Bains, A. Placci, K. Eggert, J. P. Lees, P. Nedelec, Akram Khan, P. Colas, K. Morgan, E. Tscheslog, I. Wingerter, S. Tether, C. Markou, D. J. Holthuizen, G. Sajot, G.H. Grayer, I. ten Have, Margret Fincke-Keeler, C. Bacci, M. Markytan, Carmen Albajar, D. Summers, D. Linglin, L. Villasenor, Daniel J. Smith, Teresa Rodrigo, J. P. Merlo, J. P. Mendiburu, M.-N. Minard, P. I. P. Kalmus, J. P. Porte, C. Cochet, P. Cennini, Aleandro Nisati, A. Kernan, B. Aubert, M. A. Marquina, D. Schinzel, D. Robinson, G. Ciapetti, J. P. de Brion, P. Watkims, J. Sass, Nicolas Ellis, J. N. Bellinger, J. Dorenbosch, Murrough Landon, X. Wu, H. G. Moser, W. G. Scott, J. P. Revol, S. Centro, H. Faissner, A. Savoy-Navarro, Tejinder Virdee, A. Wildish, R. Leuchs, S. Levegrün, B. Van Eijk, A. van Dijk, Christopher Seez, Anna Teresa Meneguzzo, M. Debeer, J. R. Batley, I. F. Fensome, P. Flynn, Francesco Lacava, C. Perault, Dave Charlton, S. Beingessner, Felicitas Pauss, M. Ikeda, H. Grassmann, D. Kryn, M. Demoulin, Filippo Ceradini, K. Wacker, P. Ghez, V. Vuillemin, A. Bezaguet, M. Moricca, Manfred Krammer, J. Colas, Veikko Karimäki, J. Kroll, P. Rossi, Randall Sobie, I. R. Kenyon, Christian Ghiglino, C. Rubbia, A. Ferrando, Josef Strauss, Alain Givernaud, I. Zacharov, D. Dau, P. Erhard, Jorma Tuominiemi, G. Bauer, A. Norton, R. Edgecock, J. Ransdell, M. Mohammadi, Y. Giraud-Héraud, F. J. Diez Hedo, Pierluigi Zotto, G. Piano Mortari, M. Degiorgi, T. Wyatt, J. Garvey, L. Dobrzynski, J. Vrana, H. von der Schmitt, Michael Albrow, L. Naumann, A. Diciaccio, C. Pigot, G. Jorat, M. Preischl, E. Pietarinen, Daniel Denegri, K. Sumorok, L. Zanello, I. Sheer, C. Ghesquiere, C.-E. Wulz, Elizabeth Locci, T. C. Meyer, G. Maurin, T. Axon, M. Pimiä, Jeffrey Richman, D. Clarke, J. P. Laugier, E. Buckley, J. D. Dowell, A. Geiser, T. Markiewicz, M. Schröder, Sergio Cittolin, John A Coughlan, Th. Müller, E. Radermacher, W. Jank, Charling Tao, A. Astbury, M. Della Negra, Asoke K. Nandi, S. Geer, F. Szoncso, A. Honma, R. Bonino, J.P. Vialle, W. von Schlippe, C. Zaccardelli, Bruce Denby, P. Catz, K. Bos, G. Fontaine, E. Eisenhandler, Stephen Wimpenny, J. Streets, Claudia J. Stubenrauch, A. Gonidec, G. Salvini, T. P. Shah, and W. Kienzle
Subjects: Quantum chromodynamics, Physics, Quark, Particle physics, Muon, Large Hadron Collider, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Jet (particle physics), 01 natural sciences, law.invention, Nuclear physics, law, Antiproton, 0103 physical sciences, High Energy Physics::Experiment, Charm (quantum number), Nuclear Experiment, 010306 general physics, Collider, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: We present a study of heavy flavour (charm and beauty) production using data collected with the UA1 detector at the CERN Proton-Antiproton collider at a centre-of-mass energy of 630 GeV for an integrated luminosity of 556 nb−1. This follows our earlier study ofb $$\bar b$$ andc $$\bar c$$ production in dimuon events and the evidence for mixing betweenB 0 and $$\bar B^0 $$ states. Properties of an inclusive sample of events containing a muon withp T >6 GeV/c are compared with QCD predictions for heavy flavour production, using the ISAJET Monte Carlo program. The predicted largep T muon yield from heavy flavour production and decay agrees with the data to within 30%. For events with a muon ofp T >10 GeV/c and at least one jet withE T >10 GeV, we measure the ratio charm/(charm+beauty) to be (24±8±9)%. We also show that the correlations observed between the two heavy quark jets expected by flavour conservation are consistent with the mixture of lowest and higher order QCD processes. We study in detail the topological and kinematic properties of a subsample of events containing a highp T muon and one or more jets. The good agreement of the theoretical predictions with our data in a region dominated by the production of charm and beauty shows that one of the main background sources to a new heavy quark signature is well understood.
Published: 1988

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Journal

Database

Publisher

46 results on '"Y. Giraud-Héraud"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources