Prohlížení Acta Polytechnica. 2013, vol. 53, Supplement dle názvu

Zobrazují se záznamy 30-49 z 68

    • NEUTRINOLESS DOUBLE BETA DECAY: AN EXTREME CHALLENGE 

      Autor: Ferroni, Fernando
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Neutrino-less Double Beta Decay is the only known way to possibly resolve the nature of neutrino mass. The chances to cover the mass region predicted by the inverted hierarchy require a step forward in detector capability. ...

    • NEUTRINOS AS COSMIC MESSENGERS IN THE ERA OF ICECUBE, ANTARES AND KM3NET 

      Autor: Katz, Uli F.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Using neutrinos as cosmic messengers for observation of non-thermal processes in the Universe is a highly attractive and promising vision, which has been pursued in various neutrino telescope projects for more than two ...

    • NEUTRINOS FROM ICARUS 

      Autor: Farnese, Christian
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Liquid Argon Time Projection Chambers are very promising detectors for neutrino and astroparticle physics due to their high granularity, good energy resolution and 3D imaging, allowing for a precise event reconstruction. ...

    • NON-THERMAL EMISSION FROM CATACLYSMIC VARIABLES: IMPLICATIONS ON ASTROPARTICLE PHYSICS 

      Autor: Šimon, Vojtech
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We review the lines of evidence that some cataclysmic variables (CVs) are the sources of non-thermal radiation. It was really observed in some dwarf novae in outburst, a novalike CV in the high state, an intermediate polar, ...

    • OPERA HIGHLIGHTS 

      Autor: Strauss, Thomas
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The OPERA experiment is a long baseline neutrino oscillation  experiment aimed at observing the νμ → ντ neutrino oscillation in the CERN neutrino to Gran Sasso beamline in the appearance mode by detecting the τ-decay. Here ...

    • OUR GALACTIC CENTER – THE NEAREST BURNING DISK 

      Autor: Kundt, Wolfgang
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      This short presentation will update my more than 25 years long attempts at understandingthe actions of the Central Engine at our Galactic Center.

    • POPULATION OF BLACK HOLES IN THE MILKY WAY AND IN THE MAGELLANIC CLOUDS 

      Autor: Ziółkowski, Janusz
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      In this review, I will briefly discuss the different types of black hole (BH) populations (supermassive, intermediate mass and stellar mass BHs) both in the Galaxy and in the Magellanic Clouds and compare them with each other.

    • PRECISE COSMIC RAYS MEASUREMENTS WITH PAMELA 

      Autor: Bruno, A.; Adriani, O.; Barbarino, G. C.; Bazilevskaya, G. A.; Bellotti, R.; Boezio, M.; Bogomolov, E. A.; Bongi, M.; Bonvicini, V.; Borisov, S.; Bottai, S.; Cafagna, F.; Campana, D.; Carbone, R.; Carlson, P.; Casolino, M.; Castellini, G.; Consiglio, L.; De Pascale, M. P.; De Santis, C.; De Simone, N.; Di Felice, V.; Galper, A. M.; Gillard, W.; Grishantseva, L.; Jerse, G.; Karelin, A. V.; Kheymits, M. D.; Koldashov, S. V.; Krutkov, S. Y.; Kvashnin, A. N.; Leonov, A.; Malakhov, V.; Marcelli, L.; Mayorov, A. G.; Menn, W.; Mikhailov, V. V.; Mocchiutti, E.; Monaco, A.; Mori, N.; Nikonov, N.; Osteria, G.; Palma, F.; Papini, P.; Pearce, M.; Picozza, P.; Pizzolotto, C.; Ricci, M.; Ricciarini, S. B.; Rossetto, L.; Sarkar, R.; Simon, M.; Sparvoli, R.; Spillantini, P.; Stozhkov, Y. I.; Vacchi, A.; Vannuccini, E.; Vasilyev, G.; Voronov, S. A.; Yurkin, Y. T.; Wu, J.; Zampa, G.; Zampa, N.; Zverev, V. G.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The PAMELA experiment was launched on board the Resurs-DK1 satellite on June 15th 2006. The apparatus was designed to conduct precision studies of charged cosmic radiation over a wide energy range, from tens of MeV up to ...

    • RADIOACTIVE UHECR ASTRONOMY: CORRELATING GAMMA ANISOTROPY AND NEUTRINO PEV EVENTS 

      Autor: Fargion, Daniele
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      UHECR (Ultra High Energy Cosmic Rays) were expected to be protons, to fly straight and to suffer of a GZK (opacity on CMB radiation) cut off. AUGER did suggest on 2007 that such early UHECR anisotropy was compatible with ...

    • RECENT DEVELOPMENTS IN ULTRA-HIGH ENERGY NEUTRINO ASTRONOMY 

      Autor: Grieder, Peter K. F.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We outline the current situation in ultrahigh energy (UHE) cosmic ray physics, pointing out the remaining problems, in particular the puzzle concerning the origin of the primary radiation and the role of neutrino astronomy ...

    • RESULTS FROM LHCF EXPERIMENT 

      Autor: Tricomi, Alessia
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The LHCf experiment has taken data in 2009 and 2010 p–p collisions at LHC at √s = 0.9TeV and √s = 7TeV. In this paper the most up-to-date results on the inclusive photon spectra and the π0 spectra measured by LHCf are ...

    • RESULTS FROM THE XENON100 EXPERIMENT 

      Autor: Persiani, Rino
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The XENON program consists in operating and developing double-phase time projection chambers using liquid xenon as the target material. It aims to directly detect dark matter in the form of WIMPs via their elastic scattering ...

    • RX-J0852−4622: THE NEAREST HISTORICAL SUPERNOVA REMNANT – AGAIN 

      Autor: Aschenbach, Bernd
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      RX-J0852−4622, a supernova remnant, is demonstrated to be closer than 500 pc, based on the measurements of the angular radius, the angular expansion rate and the TeV g-ray flux. This is a new method of limiting the distance ...

    • SEARCH FOR DARK MATTER WITH GAMMA-RAYS: A REVIEW 

      Autor: Morselli, Aldo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      Successfully launched in June 2008, the Fermi Gamma-ray Space Telescope, formerly named GLAST, has been observing the high-energy gamma-ray sky with unprecedented sensitivity inthe 20MeV ÷ 300 GeV energy range and electrons ...

    • SEARCH FOR GRAVITATIONAL WAVES FROM SUPERNOVAE AND LONG GRBS 

      Autor: van Putten, Maurice H.P.M.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      We report on evidence for black hole spindown in the light curves of the BATSE catalogue of 1491 long GRBs by application of matched filtering. This observation points to a strong interaction of the black hole with surrounding ...

    • STATUS OF THE CUORE EXPERIMENT 

      Autor: Tomei, Claudia
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of 130Te, a rare nuclear process that, if observed, would demonstrate the Majorana nature of the ...

    • STUDY OF THE TIME DEPENDENCE OF RADIOACTIVITY 

      Autor: Bellotti, E; Broggini, C.; Di Carlo, G.; Laubenstein, M.; Menegazzo, R.
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The activity of a 137Cs source was measured using a germanium detector installed deep underground in the Gran Sasso Laboratory. In total about 5100 energy spectra, one hour measuring time each, were collected and used to ...

    • SUPERNOVA 1987A: CELEBRATING A SILVER JUBILEE 

      Autor: Panagia, Nino
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The story of the SN 1987A explosion is briefly reviewed. Although this supernova was somewhat peculiar, the study of SN 1987A has clarified quite a number of important aspects of the nature and the properties of supernovae, ...

    • TeV GAMMA RAYS: OBSERVATIONS VERSUS EXPECTATIONS & THEORY 

      Autor: Krennrich, Frank
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The scope of this paper is to discuss two important questions relevant for TeV γ-ray astronomy; the pursuit to reveal the origin of cosmic rays in our galaxy, and the opacity of the universe in γ-rays. The origin of cosmic ...

    • THE 2H(α, γ)6LI REACTION AT LUNA AND BIG BANG NUCLEOSYNTHETIS 

      Autor: Gustavino, Carlo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
      The 2H(α, γ)6Li reaction is the leading process for the production of 6Li in standard Big Bang Nucleosynthesis. Recent observations of lithium abundance in metal-poor halo stars suggest that there might be a 6Li plateau, ...