Il Nuovo cimento della Societa italiana di fisica. C最新文献

{"title":"Geometry and physics of pseudodifferential operators on manifolds","authors":"G. Esposito, George M. Napolitano","doi":"10.1393/ncc/i2015-15159-1","DOIUrl":"https://doi.org/10.1393/ncc/i2015-15159-1","url":null,"abstract":"A review is made of the basic tools used in mathematics to define acalculus for pseudodifferential operators on Riemannian manifolds endowed with aconnection: existence theorem for the function that generalizes the phase; analogueof Taylor’s theorem; torsion and curvature terms in the symbolic calculus; the twokinds of derivative acting on smooth sections of the cotangent bundle of the Riemannianmanifold; the concept of symbol as an equivalence class. Physical motivationsand applications are then outlined, with emphasis on Green functions of quantumfield theory and Parker’s evaluation of Hawking radiation.","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"38 1","pages":"159"},"PeriodicalIF":0.0,"publicationDate":"2015-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66581059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prospects for Gamma-Ray Burst detection by the Cherenkov Telescope Array","authors":"E. Bissaldi, T. D. Girolamo, F. Longo, P. Vallania, C. Vigorito","doi":"10.1051/EPJCONF/201713603019","DOIUrl":"https://doi.org/10.1051/EPJCONF/201713603019","url":null,"abstract":"The Large Area Telescope (LAT) on the Fermi satellite is expected to publish a catalogue with more than 100 Gamma-Ray Bursts (GRBs) detected above 100 MeV thanks to a new detection algorithm and a new event reconstruction. This work aims at revising the prospects for GRB alerts with the Cherenkov Telescope Array (CTA) based on the new LAT results. We start considering the simulation of the observations with the full CTA of two extremely bright events, the long GRB 130427A and the short GRB 090510, then we investigate how these GRBs would be observed by a particular configuration of the array with the telescopes pointing to different directions in what is called the “coupled divergent mode”.","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"136 1","pages":"03019"},"PeriodicalIF":0.0,"publicationDate":"2015-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1051/EPJCONF/201713603019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57824125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prospects for K+→ φ+vvobservation at CERN in NA62","authors":"V. Duk, G. Rinella, R. Aliberti, F. Ambrosino, B. Angelucci, A. Antonelli, G. Anzivino, R. Arcidiacono, I. Azhinenko, S. Balev, J. Bendotti, A. Biagioni, C. Biino, A. Bizzeti, T. Blažek, A. Blik, B. Bloch-Devaux, V. Bolotov, V. Bonaiuto, M. Bragadireanu, D. Britton, G. Britvich, F. Bucci, F. Butin, E. Capitolo, C. Capoccia, T. Capussela, V. Carassiti, N. Cartiglia, A. Cassese, A. Catinaccio, A. Cecchetti, A. Ceccucci, P. Cenci, V. Cerný, C. Cerri, B. Checcucci, O. Chikilev, R. Ciaranfi, G. Collazuol, A. Conovaloff, P. Cooke, P. Cooper, G. Corradi, E. Gil, F. Costantini, A. C. Ramusino, D. Coward, G. D'Agostini, J. Dainton, P. Dalpiaz, H. Danielsson, J. Degrange, N. Simone, D. Filippo, L. Lella, N. Dixon, N. Doble, V. Duk, V. Elsha, J. Engelfried, T. Enik, V. Falaleev, R. Fantechi, V. Fascianelli, L. Federici, M. Fiorini, J. Fry, A. Fucci, L. Fulton, S. Gallorini, E. Gamberini, L. Gatignon, G. Georgiev, A. Gianoli, M. Giorgi, S. Giudici, L. Glonti, A. G. Martins, F. Gonnella, E. Goudzovski, R. Guida, E. Gu","doi":"10.1393/NCC/I2015-15133-Y","DOIUrl":"https://doi.org/10.1393/NCC/I2015-15133-Y","url":null,"abstract":"NA62 Collaboration: G. Aglieri Rinella, R. Aliberti, F. Ambrosino, B. Angelucci, A. Antonelli, G. Anzivino, R. Arcidiacono, I. Azhinenko, S. Balev, J. Bendotti, A. Biagioni, C. Biino, A. Bizzeti, T. Blazek, A. Blik, B. Bloch-Devaux, V. Bolotov, V. Bonaiuto, M. Bragadireanu, D. Britton, G. Britvich, F. Bucci, F. Butin, E. Capitolo, C. Capoccia, T. Capussela, V. Carassiti, N. Cartiglia, A. Cassese, A. Catinaccio, A. Cecchetti, A. Ceccucci, P. Cenci, V. Cerny, C. Cerri, B. Checcucci, O. Chikilev, R. Ciaranfi, G. Collazuol, A. Conovaloff, P. Cooke, P. Cooper, G. Corradi, E. Cortina Gil, F. Costantini, A. Cotta Ramusino, D. Coward, G. D’Agostini, J. Dainton, P. Dalpiaz, H. Danielsson, J. Degrange, N. De Simone, D. Di Filippo, L. Di Lella, N. Dixon, N. Doble, V. Duk, V. Elsha, J. Engelfried, T. Enik, V. Falaleev, R. Fantechi, V. Fascianelli, L. Federici, M. Fiorini, J. Fry, A. Fucci, L. Fulton, S. Gallorini, E. Gamberini, L. Gatignon, G. Georgiev, A. Gianoli, M. Giorgi, S. Giudici, L. Glonti, A. Goncalves Martins, F. Gonnella, E. Goudzovski, R. Guida, E. Gushchin, F. Hahn, B. Hallgren, H. Heath, F. Herman, D. Hutchcroft, E. Iacopini, E. Imbergamo, O. Jamet, P. Jarron, K. Kampf, J. Kaplon, V. Karjavin, V. Kekelidze, S. Kholodenko, G. Khoriauli, A. Khudyakov, Yu. Kiryushin, K. Kleinknecht, A. Kluge, M. Koval, V. Kozhuharov, M. Krivda, Y. Kudenko, J. Kunze, G. Lamanna, C. Lazzeroni, R. Lenci, M. Lenti, E. Leonardi, P. Lichard, R. Lietava, L. Litov, D. Lomidze, A. Lonardo, N. Lurkin, D. Madigozhin, G. Maire, A. Makarov, C. Mandeiro, I. Mannelli, G. Mannocchi, A. Mapelli, F. Marchetto, R. Marchevski, S. Martellotti, P. Massarotti, K. Massri, P. Matak, E. Maurice, E. Menichetti, G. Mila, E. Minucci, M. Mirra, M. Misheva, N. Molokanova, J. Morant, M. Morel, M. Moulson, S. Movchan, D. Munday, M. Napolitano, I. Neri, F. Newson, A. Norton, M. Noy, G. Nuessle, V. Obraztsov, A. Ostankov, S. Padolski, R. Page, V. Palladino, A. Pardons, C. Parkinson, E. Pedreschi, M. Pepe, F. Perez Gomez, M. Perrin-Terrin, L. Peruzzo, P. Petrov, F. Petrucci, R. Piandani, M. Piccini, D. Pietreanu, J. Pinzino, M. Pivanti, I. Polenkevich, I. Popov, Yu. Potrebenikov, D. Protopopescu, F. Raffaelli, M. Raggi, P. Riedler, A. Romano, P. Rubin, G. Ruggiero, V. Russo, V. Ryjov, A. Salamon, G. Salina, V. Samsonov, C. Santoni, E. Santovetti, G. Saracino, F. Sargeni, S. Schifano, V. Semenov, A. Sergi, M. Serra, S. Shkarovskiy, D. Soldi, A. Sotnikov, V. Sougonyaev, M. Sozzi, T. Spadaro, F. Spinella, R. Staley, M. Statera, P. Sutcliffe, N. Szilasi, D. Tagnani, M. Valdata-Nappi, P. Valente, M. Vasile, T. Vassilieva, B. Velghe, M. Veltri, S. Venditti, R. Volpe, M. Vormstein, H. Wahl, R. Wanke, P. Wertelaers, A. Winhart, R. Winston, B. Wrona, O. Yushchenko, M. Zamkovsky, A. Zinchenko.","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"7 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2015-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66581017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current status of the dark matter experiment DarkSide-50","authors":"L. Marini, L. Pagani, P. Agnes, T. Alexander, A. Alton, K. Arisaka, H. 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. Cocco, D. D’Angelo, M. D’Incecco, S. Davini, M. Deo, A. Derbin, A. Devoto, F. D. Eusanio, G. D. 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. Guan, Y. Guardincerri, B. Hackett, K. Herner, P. Humble, E. Hungerford, A. Ianni, A. Ianni, C. Jollet, K. Keeter, C. Kendziora, S. Kidner, V. Kobychev, G. Koh, D. Korablev, G. Korga, A. Kurlej, P. Li, P. Lombardi, C. Love, L. Ludhova, S. Luitz, Yanhui Ma, I. Machulin, A. Mandarano, S. Mari, J. Maricic, C. Martoff, A. Meregaglia, E. Meroni, P. Meyers, R. Milincic, D. Montanari, M. Montuschi, M. Monzani, P. Mosteiro, B. Mount, V. Muratova, P. Musico, A. Nelson, S. Odrowski, M. Okounkova, M. Orsini, F. ","doi":"10.1393/ncc/i2016-16247-4","DOIUrl":"https://doi.org/10.1393/ncc/i2016-16247-4","url":null,"abstract":"DarkSide-50 is a dark matter direct search experiment at LNGS, searching for rare nuclear recoils possibly induced by WIMPs. It has two nested vetoes and a dual phase liquid argon TPC as dark matter detector. Key features of this experiment are the use of underground argon as radio-pure target and of muon and neutron active vetoes to suppress the background. The first data-taking campaign was running from November 2013 to April 2015 with an atmospheric argon target and a reduced efficiency neutron veto due to internal contamination. However, an upper limit on the WIMP-nucleon cross section of 6.1×10−44 cm2 at 90% CL was obtained for a WIMP mass of 100 GeV/c2 and an exposure of (1422 ± 67) kg·d. At present DarkSide-50 started a 3 years run, intended to be background-free because the neutron veto was successfully recovered and underground argon replaced the atmospheric one. Additionally calibration campaigns for both the TPC and the neutron veto were completed. Thanks to the good performance of the background rejection, the results obtained so far suggest the scalability of DarkSide-50 to a ton-scale detector, which will play a key role into the dark matter search scenario.","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66581205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a moderator system for the High Brilliance Neutron Source project","authors":"J. Dabruck, T. Cronert, T. Brückel, Y. Bessler, W. Hansen, M. Klaus, R. Nabbi, C. Lange, M. Butzek, U. Rücker","doi":"10.1393/NCC/I2015-15192-0","DOIUrl":"https://doi.org/10.1393/NCC/I2015-15192-0","url":null,"abstract":"Summary. — The project for an accelerator based high brilliance neutron source HBS driven by Forschungszentrum J¨ulich forsees the use of the nuclear Be(p,n) or Be(d,n) reaction with accelerated particles in the lower MeV energy range. The lower neutron production compared to spallation has to be compensated by improving the neutron extraction process and optimizing the brilliance. Design and optimiziation of the moderator system are conducted with MCNP and will be validated with measurements at the AKR-2 training reactor by means of a prototype assembly where, e.g. , the effect of different liquid H 2 ortho/para ratios will be investigated and controlled in realtime via online heat capacity measurements.","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"38 1","pages":"192"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66581162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research based activities in teacher professional development on optics","authors":"M. Michelini, A. Stefanel","doi":"10.1393/ncc/i2015-15105-3","DOIUrl":"https://doi.org/10.1393/ncc/i2015-15105-3","url":null,"abstract":"","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"38 1","pages":"105"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66580957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Results and prospects on Kaon physics with the NA62 experiment at CERN","authors":"M. Mirra, G. Rinella, F. Ambrosino, B. Angelucci, A. Antonelli, G. Anzivino, R. Arcidiacono, I. Azhinenko, S. Balev, J. Bendotti, A. Biagioni, C. Biino, A. Bizzeti, T. Blažek, A. Blik, B. Bloch-Devaux, V. Bolotov, V. Bonaiuto, G. Britvich, N. Brook, F. Bucci, V. Buescher, F. Butin, E. Capitolo, C. Capoccia, T. Capussela, V. Carassiti, N. Cartiglia, A. Cassese, A. Catinaccio, A. Cecchetti, A. Ceccucci, P. Cenci, V. Cerný, C. Cerri, O. Chikilev, R. Ciaranfi, G. Collazuol, P. Cooke, G. Corradi, E. Gil, F. Costantini, A. C. Ramusino, D. Coward, G. Dagostini, J. Dainton, P. Dalpiaz, H. Danielsson, J. Degrange, N. Simone, D. Filippo, L. Lella, N. Doble, V. Duk, V. Elsha, J. Engelfried, V. Falaleev, R. Fantechi, L. Federici, M. Fiorini, J. Fry, A. Fucci, S. Gallorini, L. Gatignon, S. Giudici, L. Glonti, A. G. Martins, F. Gonnella, E. Goudzovski, R. Guida, E. Gushchin, F. Hahn, B. Hallgren, H. Heath, F. Herman, E. Iacopini, O. Jamet, P. Jarron, K. Kampf, J. Kapłon, V. Karjavin, V. Kekelidze, A. Khudyakov, Y. Kiry","doi":"10.1393/NCC/I2015-15013-6","DOIUrl":"https://doi.org/10.1393/NCC/I2015-15013-6","url":null,"abstract":"The measurement of the ratio of the rates of leptonic kaon decaysperformed by NA48/2 and NA62 (RK phase) experiments is presented, together with the description of the NA62 experiment that will start collecting data in 2015 at the CERN SPS with the main goal of measuring the branching ratio(BR) of the rare decay K+ → π+ν¯ν with a precision of 10%.","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"38 1","pages":"13"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66580850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Teacher change in implementing a research-developed representation construction pedagogy","authors":"P. Hubber, G. Chittleborough","doi":"10.1393/NCC/I2015-15098-9","DOIUrl":"https://doi.org/10.1393/NCC/I2015-15098-9","url":null,"abstract":"The Representations in Learning Science (RiLS) project developed a representation construction approach to teaching and learning in science, which has successfully demonstrated enhanced student learning through sustained engagement with ideas, and enhancement of teachers’ pedagogical knowledge and understandings of how knowledge in science is developed and communicated. The current Constructing Representations in Science Pedagogy (CRISP) project aims at wider scale implementation of the representation construction approach. This paper explores a range of issues that confronted four Year 8 teachers in implementing this research-developed approach, such as: preparedness of the teacher in terms of epistemological positioning and positioning as a learner, significant support for planning and modelling by the university expert, and a team ethos where teachers share ideas and plan jointly. The Year 8 teachers implemented a representation construction approach to the teaching of the topic of astronomy. The Interconnected Model of Teacher Growth (IMTG) (Clarke & Hollingsworth, 2002) was used to analyse the teachers’ experience in planning and delivering the teaching sequence. This model was found to be flexible in identifying the experiences of teachers in different situations and useful in identifying issues for implementation of a research developed pedagogy.","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"38 1","pages":"1049-1058"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66580893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The discovery of X-rays diffraction: From crystals to DNA. A case study to promote understanding of the nature of science and of its interdisciplinary character","authors":"F. Guerra, M. Leone, N. Robotti","doi":"10.1393/NCC/I2015-15095-0","DOIUrl":"https://doi.org/10.1393/NCC/I2015-15095-0","url":null,"abstract":"The advantages of introducing history of science topics into the teaching of science has been advocated by a large number of scholars within the science education community. One of the main reasons given for using history of science in teaching is its power to promote understanding of the nature of science (NOS). In this respect, the historical case of X-rays diffraction, from the discovery of Max von Laue (1912) to the first X-rays diffraction photographs of DNA (1953), is a case in point for showing that a correct experimental strategy and a favourable theoretical context are not enough to make a scientific discovery.","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"38 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66580882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Astrophysical quests for neutron capture data of unstable nuclei","authors":"F. Käppeler","doi":"10.1393/NCC/I2015-15174-2","DOIUrl":"https://doi.org/10.1393/NCC/I2015-15174-2","url":null,"abstract":"— The abundances of the chemical elements heavier than iron can be attributed in about equal parts to the r and to the s process, which are taking place in supernova explosions and during the He and C burning phases of stellar evolution, respectively. So far, quantitative studies on the extremely short-lived neutron-rich nuclei constituting the (n, γ) network of the r process are out of reach. On the contrary, the situation for the s-process is far advanced, as the reaction path of the s process from C to the Pb/Bi region is located within the valley of stability. Accordingly, a comprehensive database of experimental (n, γ) cross sections has been established. While for many stable isotopes the necessary accuracy is still to be reached, reliable cross sections for the involved unstable isotopes are almost completely missing. Because of the intrinsic γ background of radioactive samples, successful time-of-flight measurements are depending on intense pulsed neutron sources. Such data are fundamental for our understanding of branchings in the s-process reaction path, which carry important model-independent information on neutron flux and temperature in the deep stellar interior.","PeriodicalId":81495,"journal":{"name":"Il Nuovo cimento della Societa italiana di fisica. C","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66581082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}