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Search Results: 1 - 10 of 200675 matches for " P. Musico "
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Design of a Base-Board for arrays of closely-packed Multi-Anode Photo-Multipliers
M. Ameri,S. Cuneo,P. Musico,M. Pallavicini,A. Petrolini,F. Siccardi,A. Thea.
Physics , 2004, DOI: 10.1016/j.nima.2005.05.063
Abstract: We describe the design of a Base-Board to house Multi-Anode Photo-Multipliers for use in large-area arrays of light sensors. The goals, the design, the results of tests on the prototypes and future developments are presented.
Comparison of Fast Amplifiers for Diamond Detectors
M. Osipenko,S. Minutoli,P. Musico,M. Ripani,B. Caiffi,A. Balbi,G. Ottonello,S. Argirò,S. Beolè,N. Amapane,M. Masera,G. Mila
Physics , 2013,
Abstract: The development of Chemical Vapour Deposition (CVD) diamond detectors requests for novel signal amplifiers, capable to match the superb signal-to-noise ratio and timing response of these detectors. Existing amplifiers are still far away from this goal and are the dominant contributors to the overall system noise and the main source of degradation of the energy and timing resolution. We tested a number of commercial amplifiers designed for diamond detector readout to identify the best solution for a particular application. This application required a deposited energy threshold below 100 keV and timing resolution of the order of 200 ps at 200 keV. None of tested amplifiers satisfies these requirements. The best solution to such application found to be the Cividec C6 amplifier, which allows 100 keV minimal threshold, but its coincidence timing resolution at 200 keV is as large as 1.2 ns.
Test of the CLAS12 RICH large scale prototype in the direct proximity focusing configuration
N. Baltzell,L. Barion,F. Benmokhtar,W. Brooks,E. Cisbani,M. Contalbrigo,A. El Alaoui,K. Hafidi,M. Hoek,V. Kubarovsky,L. Lagamba,V. Lucherini,R. Malaguti,M. Mirazita,R. A. Montgomery,A. Movsisyan,P. Musico,A. Orlandi,D. Orecchini,L. L. Pappalardo,R. Perrino,J. Phillips,S. Pisano,P. Rossi,S. Squerzanti,S. Tomassini,M. Turisini,A. Viticchie
Physics , 2015,
Abstract: A large area ring-imaging Cherenkov detector has been designed to provide clean hadron identification capability in the momentum range from 3 GeV/c up to 8 GeV/c for the CLAS12 experiments at the upgraded 12 GeV continuous electron beam accelerator facility of Jefferson Laboratory. The adopted solution foresees a novel hybrid optics design based on aerogel radiator, composite mirrors and high-packed and high-segmented photon detectors. Cherenkov light will either be imaged directly (forward tracks) or after two mirror reflections (large angle tracks). We report here the results of the tests of a large scale prototype of the RICH detector performed with the hadron beam of the CERN T9 experimental hall for the direct detection configuration. The tests demonstrated that the proposed design provides the required pion-to-kaon rejection factor of 1:500 in the whole momentum range.
Measurement of the atmospheric muon depth intensity relation with the NEMO Phase-2 tower
S. Aiello,F. Ameli,M. Anghinolfi,G. Barbarino,E. Barbarito,F. Barbato,N. Beverini,S. Biagi,B. Bouhadef,C. Bozza,G. Cacopardo,M. Calamai,C. Calì,A. Capone,F. Caruso,A. Ceres,T. Chiarusi,M. Circella,R. Cocimano,R. Coniglione,M. Costa,G. Cuttone,C. D'Amato,A. D'Amico,G. De Bonis,V. De Luca,N. Deniskina,G. De Rosa,F. Di Capua,C. Distefano,P. Fermani,L. A. Fusco,F. Garufi,V. Giordano,A. Gmerk,R. Grasso,G. Grella,C. Hugon,M. Imbesi,V. Kulikovskiy,G. Larosa,D. Lattuada,K. P. Leismueller,E. Leonora,P. Litrico,A. Lonardo,F. Longhitano,D. Lo Presti,E. Maccioni,A. Margiotta,A. Martini,R. Masullo,P. Migliozzi,E. Migneco,A. Miraglia,C. M. Mollo,M. Mongelli,M. Morganti,P. Musico,M. Musumeci,C. A. Nicolau,A. Orlando,R. Papaleo,C. Pellegrino,M. G. Pellegriti,C. Perrina,P. Piattelli,C. Pugliatti,S. Pulvirenti,A. Orselli,F. Raffaelli,N. Randazzo,G. Riccobene,A. Rovelli,M. Sanguineti,P. Sapienza,V. Sciacca,I. Sgura,F. Simeone,V. Sipala,F. Speziale,M. Spina,A. Spitaleri,M. Spurio,S. M. Stellacci,M. Taiuti,G. Terreni,L. Trasatti,A. Trovato,C. Ventura,P. Vicini,S. Viola,D. Vivolo
Physics , 2014, DOI: 10.1016/j.astropartphys.2014.12.010
Abstract: The results of the analysis of the data collected with the NEMO Phase-2 tower, deployed at 3500 m depth about 80 km off-shore Capo Passero (Italy), are presented. Cherenkov photons detected with the photomultipliers tubes were used to reconstruct the tracks of atmospheric muons. Their zenith-angle distribution was measured and the results compared with Monte Carlo simulations. An evaluation of the systematic effects due to uncertainties on environmental and detector parameters is also included. The associated depth intensity relation was evaluated and compared with previous measurements and theoretical predictions. With the present analysis, the muon depth intensity relation has been measured up to 13 km of water equivalent.
Long term monitoring of the optical background in the Capo Passero deep-sea site with the NEMO tower prototype
S. Adrián-Martínez,S. Aiello,F. Ameli,M. Anghinolfi,M. Ardid,G. Barbarino,E. Barbarito,F. C. T. Barbato,N. Beverini,S. Biagi,A. Biagioni,B. Bouhadef,C. Bozza,G. Cacopardo,M. Calamai,C. Calí,D. Calvo,A. Capone,F. Caruso,A. Ceres,T. Chiarusi,M. Circella,R. Cocimano,R. Coniglione,M. Costa,G. Cuttone,C. D'Amato,A. D'Amico,G. De Bonis,V. De Luca,N. Deniskina,G. De Rosa,F. di Capua,C. Distefano,A. Enzenh?fer,P. Fermani,G. Ferrara,V. Flaminio,L. A. Fusco,F. Garufi,V. Giordano,A. Gmerk,R. Grasso,G. Grella,C. Hugon,M. Imbesi,V. Kulikovskiy,R. Lahmann,G. Larosa,D. Lattuada,K. P. Leismüller,E. Leonora,P. Litrico,C. D. Llorens Alvarez,A. Lonardo,F. Longhitano,D. Lo Presti,E. Maccioni,A. Margiotta,A. Marinelli,A. Martini,R. Masullo,P. Migliozzi,E. Migneco,A. Miraglia,C. M. Mollo,M. Mongelli,M. Morganti,P. Musico,M. Musumeci,C. A. Nicolau,A. Orlando,A. Orzelli,R. Papaleo,C. Pellegrino,M. G. Pellegriti,C. Perrina,P. Piattelli,C. Pugliatti,S. Pulvirenti,F. Raffaelli,N. Randazzo,D. Real,G. Riccobene,A. Rovelli,M. Salda?a,M. Sanguineti,P. Sapienza,V. Sciacca,I. Sgura,F. Simeone,V. Sipala,F. Speziale,A. Spitaleri,M. Spurio,S. M. Stellacci,M. Taiuti,G. Terreni,L. Trasatti,A. Trovato,C. Ventura,P. Vicini,S. Viola,D. Vivolo
Physics , 2015,
Abstract: The NEMO Phase-2 tower is the first detector which was operated underwater for more than one year at the "record" depth of 3500 m. It was designed and built within the framework of the NEMO (NEutrino Mediterranean Observatory) project. The 380 m high tower was successfully installed in March 2013 80 km offshore Capo Passero (Italy). This is the first prototype operated on the site where the italian node of the KM3NeT neutrino telescope will be built. The installation and operation of the NEMO Phase-2 tower has proven the functionality of the infrastructure and the operability at 3500 m depth. A more than one year long monitoring of the deep water characteristics of the site has been also provided. In this paper the infrastructure and the tower structure and instrumentation are described. The results of long term optical background measurements are presented. The rates show stable and low baseline values, compatible with the contribution of 40K light emission, with a small percentage of light bursts due to bioluminescence. All these features confirm the stability and good optical properties of the site.
Measurement of the atmospheric muon flux with the NEMO Phase-1 detector
S. Aiello,F. Ameli,I. Amore,M. Anghinolfi,A. Anzalone,G. Barbarino,M. Battaglieri,M. Bazzotti,A. Bersani,N. Beverini,S. Biagi,M. Bonori,B. Bouhadef,M. Brunoldi,G. Cacopardo,A. Capone,L. Caponetto,G. Carminati,T. Chiarusi,M. Circella,R. Cocimano,R. Coniglione,M. Cordelli,M. Costa,A. D'Amico,G. De Bonis,C. De Marzo,G. De Rosa,G. De Ruvo,R. De Vita,C. Distefano,E. Falchini,V. Flaminio,K. Fratini,A. Gabrielli,S. Galatà,E. Gandolfi,G. Giacomelli,F. Giorgi,G. Giovanetti,A. Grimaldi,R. Habel,M. Imbesi,V. Kulikovsky,D. Lattuada,E. Leonora,A. Lonardo,D. Lo Presti,F. Lucarelli,A. Marinelli,A. Margiotta,A. Martini,R. Masullo,E. Migneco,S. Minutoli,M. Morganti,P. Musico,M. Musumeci,C. A. Nicolau,A. Orlando,M. Osipenko,R. Papaleo,V. Pappalardo,P. Piattelli,D. Piombo,G. Raia,N. Randazzo,S. Reito,G. Ricco,G. Riccobene,M. Ripani,A. Rovelli,M. Ruppi,G. V. Russo,S. Russo,P. Sapienza,D. Sciliberto,M. Sedita,E. Shirokov,F. Simeone,V. Sipala,M. Spurio,M. Taiuti,L. Trasatti,S. Urso,M. Vecchi,P. Vicini,R. Wischnewski
Physics , 2009, DOI: 10.1016/j.astropartphys.2010.02.009
Abstract: The NEMO Collaboration installed and operated an underwater detector including prototypes of the critical elements of a possible underwater km3 neutrino telescope: a four-floor tower (called Mini-Tower) and a Junction Box. The detector was developed to test some of the main systems of the km3 detector, including the data transmission, the power distribution, the timing calibration and the acoustic positioning systems as well as to verify the capabilities of a single tridimensional detection structure to reconstruct muon tracks. We present results of the analysis of the data collected with the NEMO Mini-Tower. The position of photomultiplier tubes (PMTs) is determined through the acoustic position system. Signals detected with PMTs are used to reconstruct the tracks of atmospheric muons. The angular distribution of atmospheric muons was measured and results compared with Monte Carlo simulations.
Dark matter search in a Beam-Dump eXperiment (BDX) at Jefferson Lab
BDX Collaboration,M. Battaglieri,A. Celentano,R. De Vita,E. Izaguirre,G. Krnjaic,E. Smith,S. Stepanyan,A. Bersani,E. Fanchini,S. Fegan,P. Musico,M. Osipenko,M. Ripani,E. Santopinto,M. Taiuti,P. Schuster,N. Toro,M. Dalton,A. Freyberger,F. -X. Girod,V. Kubarovsky,M. Ungaro,G. De Cataldo,R. De Leo,D. Di Bari,L. Lagamba,E. Nappi,R. Perrino,M. Carpinelli,V. Sipala,S. Aiello,V. Bellini,M. De Napoli,A. Giusa,F. Mammoliti,E. Leonora,F. Noto,N. Randazzo,G. Russo,M. Sperduto,C. Sutera,C. Ventura,L. Barion,G. Ciullo,M. Contalbrigo,P. Lenisa,A. Movsisyan,F. Spizzo,M. Turisini,F. De Persio,E. Cisbani,C. Fanelli,F. Garibaldi,F. Meddi,G. M. Urciuoli,S. Anefalos Pereira,E. De Sanctis,D. Hasch,V. Lucherini,M. Mirazita,R. Montgomery,S. Pisano,G. Simi,A. D'Angelo,L. Colaneri L. Lanza,A. Rizzo,C. Schaerf,I. Zonta,D. Calvo,A. Filippi,M. Holtrop,R. Peremuzyan,D. Glazier,D. Ireland,B. McKinnon,D. Sokhan A. Afanasev,B. Briscoe,N. Kalantarians,L. El Fassi,L. Weinstein,P. Beltrame,A. Murphy,D. Watts,L. Zana,K. Hicks
Physics , 2014,
Abstract: MeV-GeV dark matter (DM) is theoretically well motivated but remarkably unexplored. This Letter of Intent presents the MeV-GeV DM discovery potential for a 1 m$^3$ segmented plastic scintillator detector placed downstream of the beam-dump at one of the high intensity JLab experimental Halls, receiving up to 10$^{22}$ electrons-on-target (EOT) in a one-year period. This experiment (Beam-Dump eXperiment or BDX) is sensitive to DM-nucleon elastic scattering at the level of a thousand counts per year, with very low threshold recoil energies ($\sim$1 MeV), and limited only by reducible cosmogenic backgrounds. Sensitivity to DM-electron elastic scattering and/or inelastic DM would be below 10 counts per year after requiring all electromagnetic showers in the detector to exceed a few-hundred MeV, which dramatically reduces or altogether eliminates all backgrounds. Detailed Monte Carlo simulations are in progress to finalize the detector design and experimental set up. An existing 0.036 m$^3$ prototype based on the same technology will be used to validate simulations with background rate estimates, driving the necessary R$\&$D towards an optimized detector. The final detector design and experimental set up will be presented in a full proposal to be submitted to the next JLab PAC. A fully realized experiment would be sensitive to large regions of DM parameter space, exceeding the discovery potential of existing and planned experiments by two orders of magnitude in the MeV-GeV DM mass range.
First Results from the DarkSide-50 Dark Matter Experiment at Laboratori Nazionali del Gran Sasso
P. Agnes,T. Alexander,A. Alton,K. Arisaka,H. O. Back,B. Baldin,K. Biery,G. Bonfini,M. Bossa,A. Brigatti,J. Brodsky,F. Budano,L. Cadonati,F. Calaprice,N. Canci,A. Candela,H. Cao,M. Cariello,P. Cavalcante,A. Chavarria,A. Chepurnov,A. G. Cocco,L. Crippa,D. D'Angelo,M. D'Incecco,S. Davini,M. De Deo,A. Derbin,A. Devoto,F. Di Eusanio,G. Di Pietro,E. Edkins,A. Empl,A. Fan,G. Fiorillo,K. Fomenko,G. Forster,D. Franco,F. Gabriele,C. Galbiati,A. Goretti,L. Grandi,M. Gromov,M. Y. Guan,Y. Guardincerri,B. Hackett,K. Herner,E. V. Hungerford,Al. Ianni,An. Ianni,C. Jollet,K. Keeter,C. Kendziora,S. Kidner,V. Kobychev,G. Koh,D. Korablev,G. Korga,A. Kurlej,P. X. Li,B. Loer,P. Lombardi,C. Love,L. Ludhova,S. Luitz,Y. Q. Ma,I. Machulin,A. Mandarano,S. Mari,J. Maricic,L. Marini,C. J. Martoff,A. Meregaglia,E. Meroni,P. D. Meyers,R. Milincic,D. Montanari,A. Monte,M. Montuschi,M. E. Monzani,P. Mosteiro,B. Mount,V. Muratova,P. Musico,A. Nelson,S. Odrowski,M. Okounkova,M. Orsini,F. Ortica,L. Pagani,M. Pallavicini,E. Pantic,L. Papp,S. Parmeggiano,R. Parsells,K. Pelczar,N. Pelliccia,S. Perasso,A. Pocar,S. Pordes,D. Pugachev,H. Qian,K. Randle,G. Ranucci,A. Razeto,B. Reinhold,A. Renshaw,A. Romani,B. Rossi,N. Rossi,S. D. Rountree,D. Sablone,P. Saggese,R. Saldanha,W. Sands,S. Sangiorgio,E. Segreto,D. Semenov,E. Shields,M. Skorokhvatov,O. Smirnov,A. Sotnikov,C. Stanford,Y. Suvorov,R. Tartaglia,J. Tatarowicz,G. Testera,A. Tonazzo,E. Unzhakov,R. B. Vogelaar,M. Wada,S. Walker,H. Wang,Y. Wang,A. Watson
Physics , 2014, DOI: 10.1016/j.physletb.2015.03.012
Abstract: We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon Time Projection Chamber with a (46.4+-0.7) kg active mass, operated inside a 30 t organic liquid scintillator neutron veto, which is in turn installed at the center of a 1 kt water Cherenkov veto for the residual flux of cosmic rays. We report here the null results of a dark matter search for a (1422+-67) kg d exposure with an atmospheric argon fill. This is the most sensitive dark matter search performed with an argon target, corresponding to a 90% CL upper limit on the WIMP-nucleon spin-independent cross section of 6.1x10^-44 cm^2 for a WIMP mass of 100 GeV/c^2.
The Electronics and Data Acquisition System of the DarkSide Dark Matter Search
The DarkSide Collaboration,P. Agnes,T. Alexander,A. Alton,K. Arisaka,H. O. Back,B. Baldin,K. Biery,G. Bonfini,M. Bossa,A. Brigatti,J. Brodsky,F. Budano,L. Cadonati,F. Calaprice,N. Canci,A. Candela,H. Cao,M. Cariello,P. Cavalcante,A. Chavarria,A. Chepurnov,A. G. Cocco,L. Crippa,D. D'Angelo,M. D'Incecco,S. Davini,M. De Deo,A. Derbin,A. Devoto,F. Di Eusanio,G. Di Pieto,E. Edkins,A. Empl,A. Fan,G. Fiorillo,K. Fomenko,G. Forster,D. Franco,F. Gabriele,C. Galbiati,A. Goretti,L. Grandi,M. Gromov,M. Y. Guan,Y. Guardincerri,B. Hackett,K. Herner,E. Hungerford,Al. Ianni,An. Ianni,C. Jollet,K. Keeter,C. Kendziora,S. Kidner,V. Kobychev,G. Koh,D. Korablev,G. Korga,A. Kurlej,P. X. Li,B. Loer,P. Lombardi,C. Love,L. Ludhova,S. Luitz,Y. Q. Ma,I. Machulin,A. Mandarano,S. M. Mari,J. Maricic,L. Marini,J. Martoff,A. Meregaglia,E. Meroni,P. D. Meyers,R. Milincic,D. Montanari,M. Montuschi,M. E. Monzani,P. Mosteiro,B. Mount,V. Muratova,P. Musico,A. Nelson,S. Odrowski,M. Okounkoa,M. Orsini,F. Ortica,L. Pagani,M. Pallavicini,E. Pantic,L. Papp,S. Parmeggiano,Bob Parsells,K. Pelczar,N. Pelliccia,S. Perasso,A. Pocar,S. Pordes,D. Pugachev,H. Qian,K. Randle,G. Ranucci,A. Razeto,B. Reinhold,A. Renshaw,A. Romani,B. Rossi,N. Rossi,S. D. Rountree,D. Sablone,P. Saggese,R. Saldanha,W. Sands,S. Sangiorgio,E. Segreto,D. Semenov,E. Shields,M. Skorokhvatov,O. Smirnov,A. Sotnikov,C. Stanford,Suvorov,R. Tartaglia,J. Tatarowicz,G. Testera,A. Tonazzo,E. Unzhakov,R. B. Vogelaar,M. Wada,S. E. Walker,H. Wang,Y. Wang
Physics , 2014,
Abstract: It is generally inferred from astronomical measurements that Dark Matter (DM) comprises approximately 27\% of the energy-density of the universe. If DM is a subatomic particle, a possible candidate is a Weakly Interacting Massive Particle (WIMP), and the DarkSide-50 (DS) experiment is a direct search for evidence of WIMP-nuclear collisions. DS is located underground at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy, and consists of three active, embedded components; an outer water veto (CTF), a liquid scintillator veto (LSV), and a liquid argon (LAr) time projection chamber (TPC). This paper describes the data acquisition and electronic systems of the DS detectors, designed to detect the residual ionization from such collisions.
Low radioactivity argon dark matter search results from the DarkSide-50 experiment
The DarkSide Collaboration,P. Agnes,L. Agostino,I. F. M. Albuquerque,T. Alexander,A. K. Alton,K. Arisaka,H. O. Back,B. Baldin,K. Biery,G. Bonfini,M. Bossa,B. Bottino,A. Brigatti,J. Brodsky,F. Budano,S. Bussino,M. Cadeddu,L. Cadonati,M. Cadoni,F. Calaprice,N. Canci,A. Candela,H. Cao,M. Cariello,M. Carlini,S. Catalanotti,P. Cavalcante,A. Chepurnov,A. G. Cocco,G. Covone,L. Crippa,D. D'Angelo,M. D'Incecco,S. Davini,S. De Cecco,M. De Deo,M. De Vincenzi,A. Derbin,A. Devoto,F. Di Eusanio,G. Di Pietro,E. Edkins,A. Empl,A. Fan,G. Fiorillo,K. Fomenko,G. Forster,D. Franco,F. Gabriele,C. Galbiati,C. Giganti,A. M. Goretti,F. Granato,L. Grandi,M. Gromov,M. Guan,Y. Guardincerri,B. R. Hackett,K. Herner,E. V. Hungerford,Al. Ianni,An. Ianni,I. James,C. Jollet,K. Keeter,C. L. Kendziora,V. Kobychev,G. Koh,D. Korablev,G. Korga,A. Kubankin,X. Li,M. Lissia,P. Lombardi,S. Luitz,Y. Ma,I. N. Machulin,A. Mandarano,S. M. Mari,J. Maricic,L. Marini,C. J. Martoff,A. Meregaglia,P. D. Meyers,T. Miletic,R. Milincic,D. Montanari,A. Monte,M. Montuschi,M. Monzani,P. Mosteiro,B. J. Mount,V. N. Muratova,P. Musico,J. Napolitano,A. Nelson,S. Odrowski,M. Orsini,F. Ortica,L. Pagani,M. Pallavicini,E. Pantic,S. Parmeggiano,K. Pelczar,N. Pelliccia,S. Perasso,A. Pocar,S. Pordes,D. A. Pugachev,H. Qian,K. Randle,G. Ranucci,A. Razeto,B. Reinhold,A. L. Renshaw,A. Romani,B. Rossi,N. Rossi,D. Rountree,D. Sablone,P. Saggese,R. Saldanha,W. Sands,S. Sangiorgio,C. Savarese,E. Segreto,D. A. Semenov,E. Shields,P. N. Singh
Physics , 2015,
Abstract: The DarkSide-50 dark matter search reports the first results obtained using a target of low-radioactivity argon extracted from underground sources. The experiment is located at the Laboratori Nazionali del Gran Sasso and uses a two-phase time projection chamber as a detector. A total of 155 kg of low radioactivity argon has been obtained, and we have determined that underground argon is depleted in Ar-39 by a factor (1.4 +- 0.2) x 10^3 relative to atmospheric argon. The underground argon is also found to contain (2.05 +- 0.13) mBq/kg of Kr-85. We find no evidence for dark matter in the form of WIMPs in 70.9 live-days of data with a fiducial mass of (36.9 +- 0.6) kg. When combined with our preceding search with an atmospheric argon target, we set a 90 % C.L. upper limit on the WIMP-nucleon spin-independent cross section of 2.0 x 10^-44 cm^2 (8.6 x 10^-44 cm^2, 8.0 x 10^-43 cm^2) for a WIMP mass of 100 GeV/c^2 (1 TeV/c^2 , 10 TeV/c^2).
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