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329 results on '"Mangano G"'

1. Radioactivity measurements in volcano-tectonic area for geodynamic process study

Author

La Delfa S., Mangano G., Catalano R., Cammisa S., Morelli D., Immé G., and Patanè G.

Subjects
Physics, QC1-999
Abstract

In the last ten years we carried out several radioactivity investigations in the aetnean area, a peculiar site characterized by both tectonicand volcanic features. In particular, continuous measurements in-soilradon gas carried out from 2001 until 2006 in the eastern flank of Mt. Etna, while several volcanic events occurred, showed a possible correlation between radon concentration and geodynamic activity, in particular magma uprising. We report in particular on the survey performedin order to determine vertical radon concentration profiles at differentdepths in sites near active faults in order to extract radon diffusion coefficients for the different sites. Moreover laboratory analysis alloweddetermining radionuclide contents (via γ-spectroscopy) and radon exhalation rate (via Can-technique) for different rock samples from themonitored sites. This study represents a contribution to better definethe radon transport process through fractured media, in particular in volcanic area.

Published
2012
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3. A proposal for the development of a feed consumption database using a standardised feed classification system.

Author

Pinotti, L., Pastorelli, G., Varese, G., Cheli, F., Di Lorenzo, C., Montanelli, S., Landolfi, C., Mangano, G., Gazerro, C., Perricone, V., Ottoboni, M., Moradei, A., Abbate, R., Luciano, A., and Mercogliano, F.

Subjects
DATABASES, TECHNICAL reports, PETS, FEED industry, CONSUMPTION (Economics)
Abstract

There is currently no comprehensive feed consumption database using a harmonised feed classification system. This means there is a lack of accurate information on the individual amount of feed consumed daily by farmed and companion animals. Such a database would support exposure assessments of feed. This report provides a complete overview of the main feed databases, their structure, and how feed materials are classified. It highlights their limits and potential and reports any differences from FoodEx2. A proposal for future updates of FoodEx2 and the development of a comprehensive feed consumption model database is provided. The proposed model database is based on three information areas represented by three Excel sheets. These represent Animal, Feed, and Consumption, allowing the determination of animal dietary exposure. A proof of concept of the developed model database was carried out by performing two case studies focused on genetically modified feed and feed contaminants. For genetically modified feed, a reduced animal dietary exposure was obtained compared to estimations reported in the scientific opinions and obtained using Excel calculators proposed by EFSA. For the contaminants in feed, differences were limited, resulting in slightly higher or lower exposure values. Weaknesses and possible mitigations are also addressed, and recommendations are made for a comprehensive feed consumption database. These include recommendations establishing an EU classification system in which the main features and items reported in the European Catalogue of Feed Materials are harmonised with FoodEx2. It is also recommended that real‐life animal consumption data are collected by the feed industry, animal nutritionists, breeders, and farmers, along with the collaboration of stakeholders. [ABSTRACT FROM AUTHOR]

Published
2024
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4. The baryon density of the Universe from an improved rate of deuterium burning

Author

Mossa, V., Stöckel, K., Cavanna, F., Ferraro, F., Aliotta, M., Barile, F., Bemmerer, D., Best, A., Boeltzig, A., Broggini, C., Bruno, C. G., Caciolli, A., Chillery, T., Ciani, G. F., Corvisiero, P., Csedreki, L., Davinson, T., Depalo, R., Di Leva, A., Elekes, Z., Fiore, E. M., Formicola, A., Fülöp, Zs., Gervino, G., Guglielmetti, A., Gustavino, C., Gyürky, G., Imbriani, G., Junker, M., Kievsky, A., Kochanek, I., Lugaro, M., Marcucci, L. E., Mangano, G., Marigo, P., Masha, E., Menegazzo, R., Pantaleo, F. R., Paticchio, V., Perrino, R., Piatti, D., Pisanti, O., Prati, P., Schiavulli, L., Straniero, O., Szücs, T., Takács, M. P., Trezzi, D., Viviani, M., and Zavatarelli, S.

Published
2020
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6. Heisenberg’s uncertainty principle in the PTOLEMY project: A theory update

Author

PTOLEMY Collaboration, Apponi, A., Betti, M. G., Borghesi, M., Boyarsky, A., Canci, N., Cavoto, G., Chang, C., Cheianov, V., Cheipesh, Y., Chung, W., Cocco, A. G., Colijn, A. P., D'Ambrosio, N., de Groot, N., Esposito, A., Faverzani, M., Ferella, A., Ferri, E., Ficcadenti, L., Frederico, T., Gariazzo, S., Gatti, F., Gentile, C., Giachero, A., Hochberg, Y., Kahn, Y., Lisanti, M., Mangano, G., Marcucci, L. E., Mariani, C., Marques, M., Menichetti, G., Messina, M., Mikulenko, O., Monticone, E., Nucciotti, A., Orlandi, D., Pandolfi, F., Parlati, S., Pepe, C., Heros, C. Pérez de los, Pisanti, O., Polini, M., Polosa, A. D., Puiu, A., Rago, I., Raitses, Y., Rajteri, M., Rossi, N., Rozwadowska, K., Rucandio, I., Ruocco, A., Strid, C. F., Tan, A., Teles, L. K., Tozzini, V., Tully, C. G., Viviani, M., Zeitler, U., Zhao, F., Apponi, A., Betti, M. ???G., Borghesi, M., Boyarsky, A., Canci, N., Cavoto, G., Chang, C., Cheianov, V., Cheipesh, Y., Chung, W., Cocco, A. ???G., Colijn, A. ???P., D???ambrosio, N., de Groot, N., Esposito, A., Faverzani, M., Ferella, A., Ferri, E., Ficcadenti, L., Frederico, T., Gariazzo, S., Gatti, F., Gentile, C., Giachero, A., Hochberg, Y., Kahn, Y., Lisanti, M., Mangano, G., Marcucci, L. ???E., Mariani, C., Marques, M., Menichetti, G., Messina, M., Mikulenko, O., Monticone, E., Nucciotti, A., Orlandi, D., Pandolfi, F., Parlati, S., Pepe, C., P??rez de los Heros, C., Pisanti, O., Polini, M., Polosa, A. ???D., Puiu, A., Rago, I., Raitses, Y., Rajteri, M., Rossi, N., Rozwadowska, K., Rucandio, I., Ruocco, A., Strid, C. ???F., Tan, A., Teles, L. ???K., Tozzini, V., Tully, C. ???G., Viviani, M., Zeitler, U., Zhao, F., Apponi, A, Betti, M, Borghesi, M, Boyarsky, A, Canci, N, Cavoto, G, Chang, C, Cheianov, V, Cheipesh, Y, Chung, W, Cocco, A, Colijn, A, D’Ambrosio, N, de Groot, N, Esposito, A, Faverzani, M, Ferella, A, Ferri, E, Ficcadenti, L, Frederico, T, Gariazzo, S, Gatti, F, Gentile, C, Giachero, A, Hochberg, Y, Kahn, Y, Lisanti, M, Mangano, G, Marcucci, L, Mariani, C, Marques, M, Menichetti, G, Messina, M, Mikulenko, O, Monticone, E, Nucciotti, A, Orlandi, D, Pandolfi, F, Parlati, S, Pepe, C, Pérez de los Heros, C, Pisanti, O, Polini, M, Polosa, A, Puiu, A, Rago, I, Raitses, Y, Rajteri, M, Rossi, N, Rozwadowska, K, Rucandio, I, Ruocco, A, Strid, C, Tan, A, Teles, L, Tozzini, V, Tully, C, Viviani, M, Zeitler, U, and Zhao, F

Subjects
Ptolemy, neutrinos , relic neutrinos, beta-processes, tritium source, graphene sheet, Particles & Fields, Carbon-based materials, FOS: Physical sciences, Condensed Matter, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), neutrino, High Energy Physics - Phenomenology (hep-ph), Cosmology & Astrophysics, Semiconductors and Nanostructures, tritium, relic neutrino, High Energy Physics, Physical Systems, Graphene Neutrinos, Materials & Applied Physics, Gravitation, Condensed Matter Physics, Condensed Matter - Other Condensed Matter, High Energy Physics - Phenomenology, Experimental High Energy Physics, Den kondenserade materiens fysik, Other Condensed Matter (cond-mat.other)
Abstract

We discuss the consequences of the quantum uncertainty on the spectrum of the electron emitted by the $\beta$-processes of a tritium atom bound to a graphene sheet. We analyze quantitatively the issue recently raised in [Cheipesh et al., Phys. Rev. D 104, 116004 (2021)], and discuss the relevant time scales and the degrees of freedom that can contribute to the intrinsic spread in the electron energy. We perform careful calculations of the potential between tritium and graphene with different coverages and geometries. With this at hand, we propose possible avenues to mitigate the effect of the quantum uncertainty., Comment: 14 pages, 5 figures

Published
2022

12. The Petilia-Sosti Shear Zone (Calabrian Arc, southern Italy): An onshore-offshore regional active structure

Author

Civile D.[1], Zecchin M.[1], Tosi L.[2], Da Lio C.[2], Muto F.[3], Sandron D.[1], Affatato A.[1], Accettella D.[1], and Mangano G.[1

Subjects
Geophysics, Stratigraphy, Economic Geology, Geology, Petilia-Sosti shear zone, Calabrian arc, tectonic and gravity-driven deformation, seismogenic source, Sila massif, Crotone basin, Oceanography
Abstract

The integrated interpretation of different types of data, consisting of a detailed Digital Terrain Model, field structural and morphotectonic observations, high resolution seismic data, seismological and Synthetic Aperture Radar interferometry information (vertical and horizontal movements), associated with a review of the available literature, has allowed to analyze the shallow expression of the regional-scale Petilia-Sosti Shear Zone (PSSZ). It is one of the major NW-trending tectonic lineaments affecting the Calabrian Arc and is characterized by a present-day tectonic and gravity-driven deformation. This study investigated the portion of the PSSZ between the offshore Crotone Peninsula, located along the Ionian sea of Calabria, and the central part of the Sila Massif. A complex tectonic history is documented since middle Miocene onward for the PSSZ. It consists of an alternation of sinistral and dextral transpressional and transtensional tectonic phases correlated with the geodynamic events occurred during the SE migration of the Calabrian Arc. The shallow expression of the investigated part of the PSSZ consists of a roughly 14 km wide, ca. 80 km long NW-trending tectonic zone including synthetic NW- to NNW-trending faults and N-NE antithetic minor structures. The main identified NW-trending faults, which show a development between 30 and 50 km, are the Sila and Lakes faults in the Sila Massif, and the Marcedusa-Steccato, Fosso Umbro and Tacina faults located in the SW part of the Crotone Basin and in its offshore area. Currently, the fault segments of the Sila Massif exhibit a prevailing normal kinematics with a left-lateral component, whereas a more complex geological framework occurs in the south-western part of the onshore-offshore Crotone Basin. The latter is dominated by gravity-driven movements, associated with the SE migration of the Crotone Megalandslide and with the regional uplift of Calabria, whereas normal kinematics with a small left-lateral component of movement, locally replaced by reverse/transpressional tectonics, was observed along the southern coast in the late Pleistocene deposits of the Le Castella marine terrace. The seismological data highlight that some strong earthquakes occurred in 1638, 1744 and 1832, with magnitude Mw between 5.7 and 6.8, might be associated with the Lakes, Fosso Umbro and Tacina faults respectively. In this frame, the PSSZ is proposed as a new potential NW-oriented active composite seismogenic source for the central-northern Calabria.

Published
2022
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20. First results from a dark matter search with liquid argon at 87 K in the Gran Sasso underground laboratory

Author

Benetti, P., Acciarri, R., Adamo, F., Baibussinov, B., Baldo-Ceolin, M., Belluco, M., Calaprice, F., Calligarich, E., Cambiaghi, M., Carbonara, F., Cavanna, F., Centro, S., Cocco, A.G., Di Pompeo, F., Ferrari, N., Fiorillo, G., Galbiati, C., Gallo, V., Grandi, L., Ianni, A., Mangano, G., Meng, G., Montanari, C., Palamara, O., Pandola, L., Pietropaolo, F., Raselli, G.L., Rossella, M., Rubbia, C., Szelc, A.M., Ventura, S., and Vignoli, C.

Published
2008
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29. Measurement of the specific activity of 39Ar in natural argon

Author

Benetti, P., Calaprice, F., Calligarich, E., Cambiaghi, M., Carbonara, F., Cavanna, F., Cocco, A.G., Di Pompeo, F., Ferrari, N., Fiorillo, G., Galbiati, C., Grandi, L., Mangano, G., Montanari, C., Pandola, L., Rappoldi, A., Raselli, G.L., Roncadelli, M., Rossella, M., Rubbia, C., Santorelli, R., Szelc, A.M., Vignoli, C., and Zhao, Y.

Published
2007
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30. I depositi a vertebrati continentali del pleistocene della Calabria

Author

Mangano, G

Subjects
Science (General), Q1-390
Abstract

The inventory of Pleistocene mammal-bearing deposits of Calabria is reported, on the basis of the data available in the literature. Most of the deposits are represented by open-air sites, while cave deposits, always containing human artifacts too, are very scarce; this is to be referred to the lithology of the region, having few outcrops of carbonatic rocks. In many cases, precise informations on the stratigraphy and the composition of the faunal assemblages are lacking. A revision of the faunal assemblages is needed, also to better define times and modalities of the dispersal of the taxa to Sicily.

Published
2007
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32. WARP liquid argon detector for dark matter survey

Author

Brunetti, R., Calligarich, E., Cambiaghi, M., Carbonara, F., Cocco, A., Vecchi, C. De, Dolfini, R., Ereditato, A., Fiorillo, G., Grandi, L., Mangano, G., Menegolli, A., Montanari, C., Prata, M., Rappoldi, A., Raselli, G.L., Roncadelli, M., Rossella, M., Rubbia, C., Santorelli, R., and Vignoli, C.

Published
2005
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38. Design, construction and tests of the ICARUS T600 detector

Author

Amerio, S., Amoruso, S., Antonello, M., Aprili, P., Armenante, M., Arneodo, F., Badertscher, A., Baiboussinov, B., Baldo Ceolin, M., Battistoni, G., Bekman, B., Benetti, P., Bernardini, E., Bischofberger, M., Borio di Tigliole, A., Brunetti, R., Bruzzese, R., Bueno, A., Calligarich, E., Campanelli, M., Carbonara, F., Carpanese, C., Cavalli, D., Cavanna, F., Cennini, P., Centro, S., Cesana, A., Chen, C., Chen, D., Chen, D.B., Chen, Y., Cid, R., Cline, D.B., Cieślik, K., Cocco, A.G., Corti, D., Dai, Z., De Vecchi, C., Da̧browska, A., Di Cicco, A., Dolfini, R., Ereditato, A., Felcini, M., Ferella, A., Ferrari, A., Ferri, F., Fiorillo, G., Galli, S., Garcia Gamez, D., Ge, Y., Gibin, D., Gigli Berzolari, A., Gil-Botella, I., Graczyk, K., Grandi, L., Guglielmi, A., He, K., Holeczek, J., Huang, X., Juszczak, C., Kiełczewska, D., Kisiel, J., Kozłowski, T., Kuna-Ciskał, H., Laffranchi, M., Łagoda, J., Li, Z., Lisowski, B., Lu, F., Ma, J., Mangano, G., Mannocchi, G., Markiewicz, M., Martinez de la Ossa, A., Matthey, C., Mauri, F., Mazza, D., Melgarejo, A.J., Menegolli, A., Meng, G., Messina, M., Mietelski, J.W., Montanari, C., Muraro, S., Navas-Concha, S., Nicoletto, M., Nowak, J., Nurzia, G., Osuna, C., Otwinowski, S., Ouyang, Q., Palamara, O., Pascoli, D., Periale, L., Piano Mortari, G., Piazzoli, A., Picchi, P., Pietropaolo, F., Półchłopek, W., Prata, M., Rancati, T., Rappoldi, A., Raselli, G.L., Rico, J., Rondio, E., Rossella, M., Rubbia, A., Rubbia, C., Sala, P., Santorelli, R., Scannicchio, D., Segreto, E., Seo, Y., Sergiampietri, F., Sobczyk, J., Spinelli, N., Stepaniak, J., Sulej, R., Szeptycka, M., Szarska, M., Terrani, M., Trinchero, G., Velotta, R., Ventura, S., Vignoli, C., Wang, H., Wang, X., Woo, J., Xu, G., Xu, Z., Yang, X., Zalewska, A., Zalipska, J., Zhang, C., Zhang, Q., Zhen, S., and Zipper, W.

Published
2004
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39. Study of electron recombination in liquid argon with the ICARUS TPC

Author

Amoruso, S., Antonello, M., Aprili, P., Arneodo, F., Badertscher, A., Baiboussinov, B., Baldo Ceolin, M., Battistoni, G., Bekman, B., Benetti, P., Bischofberger, M., Borio di Tigliole, A., Brunetti, R., Bruzzese, R., Bueno, A., Buzzanca, M., Calligarich, E., Campanelli, M., Carbonara, F., Carpanese, C., Cavalli, D., Cavanna, F., Cennini, P., Centro, S., Cesana, A., Chen, C., Chen, D., Chen, D.B., Chen, Y., Cieślik, K., Cline, D., Cocco, A.G., Dai, Z., De Vecchi, C., Dąbrowska, A., Di Cicco, A., Dolfini, R., Ereditato, A., Felcini, M., Ferrari, A., Ferri, F., Fiorillo, G., Galli, S., Ge, Y., Gibin, D., Gigli Berzolari, A., Gil-Botella, I., Graczyk, K., Grandi, L., Guglielmi, A., He, K., Holeczek, J., Huang, X., Juszczak, C., Kiełczewska, D., Kisiel, J., Kozłowski, T., Laffranchi, M., Łagoda, J., Li, Z., Lu, F., Ma, J., Mangano, G., Markiewicz, M., Martinez de la Ossa, A., Matthey, C., Mauri, F., Meng, G., Messina, M., Montanari, C., Muraro, S., Navas-Concha, S., Otwinowski, S., Ouyang, Q., Palamara, O., Pascoli, D., Periale, L., Piano Mortari, G.B., Piazzoli, A., Picchi, P., Pietropaolo, F., Półchłopek, W., Rancati, T., Rappoldi, A., Raselli, G.L., Rico, J., Rondio, E., Rossella, M., Rubbia, A., Rubbia, C., Sala, P.R., Santorelli, R., Scannicchio, D., Segreto, E., Seo, Y., Sergiampietri, F., Sobczyk, J., Spinelli, N., Stepaniak, J., Sulej, R., Szarska, M., Szeptycka, M., Terrani, M., Velotta, R., Ventura, S., Vignoli, C., Wang, H., Wang, X., Woo, J., Xu, G., Xu, Z., Zalewska, A., Zhang, C., Zhang, Q., Zhen, S., and Zipper, W.

Published
2004
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40. Analysis of the liquid argon purity in the ICARUS T600 TPC

Author

Amoruso, S, Antonello, M, Aprili, P, Arneodo, F, Badertscher, A, Baiboussinov, B, Baldo Ceolin, M, Battistoni, G, Bekman, B, Benetti, P, Bernardini, E, Bischofberger, M, Borio di Tigliole, A, Brunetti, R, Bruzzese, R, Bueno, A, Buzzanca, M, Calligarich, E, Campanelli, M, Carbonara, F, Carpanese, C, Cavalli, D, Cavanna, F, Cennini, P, Centro, S, Cesana, A, Chen, C, Chen, D, Chen, D.B, Chen, Y, Cieślik, X, Cline, D, Cocco, A.G, Dai, Z, De Vecchi, C, Da̧browska, A, Di Cicco, A, Dolfini, R, Ereditato, A, Felcini, M, Ferrari, A, Ferri, F, Fiorillo, G, Galli, S, Ge, Y, Gibin, D, Gigli Berzolari, A, Gil-Botella, I, Graczyk, K, Grandi, L, Guglielmi, A, He, K, Holeczek, J, Huang, X, Juszczak, C, Kiełczewska, D, Kisiel, J, Kozłowski, T, Laffranchi, M, Łagoda, J, Li, Z, Lu, F, Ma, J, Mangano, G, Markiewicz, M, Martinez de la Ossa, A, Matthey, C, Mauri, F, Meng, G, Messina, M, Montanari, C, Muraro, S, Navas-Concha, S, Nurzia, G, Otwinowski, S, Ouyang, Q, Palamara, O, Pascoli, D, Periale, L, Piano Mortari, G.B, Piazzoli, A, Picchi, P, Pietropaolo, F, Półchłopek, W, Rancati, T, Rappoldi, A, Raselli, G.L, Rico, J, Rondio, E, Rossella, M, Rubbia, A, Rubbia, C, Sala, P, Santorelli, R, Scannicchio, D, Segreto, E, Seo, Y, Sergiampietri, F, Sobczyk, J, Spinelli, N, Stepaniak, J, Szarska, M, Szeptycka, M, Szleper, M, Terrani, M, Velotta, R, Ventura, S, Vignoli, C, Wang, H, Wang, X, Woo, J, Xu, G, Xu, Z, Zalewska, A, Zalipska, J, Zhang, C, Zhang, Q, Zhen, S, and Zipper, W

Published
2004
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43. Timing of the emergence of the Europe-Sicily bridge (40-17 cal ka BP) and its implications for the spread of modern humans

Author

Antonioli, F, LO PRESTI, Valeria, GASPARO MORTICELLI, Maurizio, Bonfiglio, L, Mannino, M, Palombo, MR, Sannino, G, Ferranti, L, Furlani, S, Lambeck, K, Canese, S, CATALANO, Raimondo, Chiocci, FL, Mangano, G, Schicchitano, G, Tonielli, R., Harff, J., Bailey, G. & Luth, F., Antonioli, F., Lo Presti, V., Morticelli, M. G., Bonfiglio, L., Mannino, M. A., Palombo, M. R., Sannino, G. M., Ferranti, Luigi, Furlani, S., Lambeck, K., Canese, S. P., Catalano, R., Chiocci, F. L., Mangano, G., Scicchitano, G., Tonielli, R., J. Harff, G. Bailey, F. Luth, Fabrizio, Antonioli, Valeria Lo, Presti, Maurizio Gasparo, Monticelli, Laura, Bonfiglio, Marcello A., Mannino, Maria Rita, Palombo, Gianmaria, Sannino, Luigi, Ferranti, Furlani, Stefano, Kurt, Lambeck, Simonepietro, Canese, Raimondo, Catalano, Francesco Latino, Chiocci, Gabriella, Mangano, Giovanni, Scicchitano, Renato, Tonielli, Harff, J., Bailey, G., Lüth, F., Antonioli, F, Lo Presti, V, Gasparo Morticelli, M, Bonfiglio, L, Mannino, M, Palombo, MR, Sannino, G, Ferranti, L, Furlani, S, Lambeck, K, Canese, S, Catalano, R, Chiocci, FL, Mangano, G, Schicchitano, G, and Tonielli, R

Subjects
Homo Sapiens, Settore GEO/04 - Geografia Fisica E Geomorfologia, Settore GEO/03 - Geologia Strutturale, Sea level change, Europe–Sicily bridge, Settore GEO/01 - Paleontologia E Paleoecologia, Messina Strait
Abstract

The submerged sill in the Strait of Messina, which is located today at a minimum depth of 81 m below sea level (bsl), represents the only land connection between Sicily and mainland Italy (and thus Europe) during the last lowstand when the sea level locally stood at about 126 m bsl. Today, the sea crossing to Sicily, although it is less than 4 km at the narrowest point, faces hazardous sea conditions, made famous by the myth of Scylla and Charybdis. Through a multidisciplinary research project, we document the timing and mode of emergence of this land connection during the last 40 kyr. The integrated analysis takes into consideration morphobathymetric and lithological data, and relative sea-level change (both isostatic and tectonic), resulting in the hypothesis that a continental land bridge lasted for at least 500 years between 21.5 and 20 cal ka BP. The emergence may have occurred over an even longer time span if one allows for seafloor erosion by marine currents that have lowered the seabed since the Last Glacial Maximum (LGM). Modelling of palaeotidal velocities shows that sea crossings when sea level was lower than present would have faced even stronger and more hazardous sea currents than today, supporting the hypothesis that earliest human entry into Sicily most probably took place on foot during the period when the sill emerged as dry land. This hypothesis is compared with an analysis of Pleistocene vertebrate faunas in Sicily and mainland Italy, including a new radiocarbon date on bone collagen of an Equus hydruntinus specimen from Grotta di San Teodoro (23–21 cal ka BP), the dispersal abilities of the various animal species involved, particularly their swimming abilities, and the Palaeolithic archaeological record, all of which support the hypothesis of a relatively late land-based colonization of Sicily by Homo sapiens.

Published
2016

49. PTOLEMY: A Proposal for Thermal Relic Detection of Massive Neutrinos and Directional Detection of MeV Dark Matter

Author

Baracchini, E., Betti, M. G., Biasotti, M., Boscá, A., Calle, F., Carabe-Lopez, J., Cavoto, G., Chang, C., Cocco, A. G., Colijn, A. P., Conrad, J., D Ambrosio, N., Salas, P. F., Faverzani, M., Ferella, A., Ferri, E., Garcia-Abia, P., Garcia Gomez-Tejedor, G., Gariazzo, S., Gatti, F., Gentile, C., Giachero, A., Gudmundsson, J., Hochberg, Y., Kahn, Y., Lisanti, M., Mancini-Terracciano, C., Mangano, G., Marcucci, L. E., Mariani, C., Martínez, J., Mazzitelli, G., Messina, M., Molinero-Vela, A., Monticone, E., Nucciotti, A., Pandolfi, F., Pastor, S., Pedrós, J., Pérez Los Heros, C., Pisanti, O., Polosa, A., Puiu, A., Rajteri, M., Roberto Santorelli, Schaeffner, K., Tully, C. G., Raitses, Y., Rossi, N., Zhao, F., and Zurek, K. M.

Subjects
High Energy Physics - Experiment (hep-ex), Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment
Abstract

We propose to achieve the proof-of-principle of the PTOLEMY project to directly detect the Cosmic Neutrino Background (CNB). Each of the technological challenges described in [1,2] will be targeted and hopefully solved by the use of the latest experimental developments and profiting from the low background environment provided by the LNGS underground site. The first phase will focus on the graphene technology for a tritium target and the demonstration of TES microcalorimetry with an energy resolution of better than 0.05 eV for low energy electrons. These technologies will be evaluated using the PTOLEMY prototype, proposed for underground installation, using precision HV controls to step down the kinematic energy of endpoint electrons to match the calorimeter dynamic range and rate capabilities. The second phase will produce a novel implementation of the EM filter that is scalable to the full target size and which demonstrates intrinsic triggering capability for selecting endpoint electrons. Concurrent with the CNB program, we plan to exploit and develop the unique properties of graphene to implement an intermediate program for direct directional detection of MeV dark matter [3,4]. This program will evaluate the radio-purity and scalability of the graphene fabrication process with the goal of using recently identified ultra-high radio-purity CO2 sources. The direct detection of the CNB is a snapshot of early universe dynamics recorded by the thermal relic neutrino yield taken at a time that predates the epochs of Big Bang Nucleosynthesis, the Cosmic Microwave Background and the recession of galaxies (Hubble Expansion). Big Bang neutrinos are believed to have a central role in the evolution of the Universe and a direct measurement with PTOLEMY will unequivocally establish the extent to which these predictions match present-day neutrino densities.

Published
2018

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