PAMELA: A payload for antimatter matter exploration and light-nuclei astrophysics - Status and first results
| Autor: | Mirko Boezio, P. Spillantini, O. Maksumov, V. Bonvicini, L. Bongiorno, E. Mocchiutti, S. Misin, A. Vacchi, A. Morselli, M. Minori, Petter Hofverberg, A. Bruno, Y. I. Stozhkov, S. V. Koldashov, M. P. De Pascale, G. Zampa, Marco Ricci, V. G. Zverev, S. Y. Krutkov, O. Adriani, W. Menn, G. Castellini, M. Ambriola, Giuseppe Osteria, Roberta Sparvoli, G. A. Bazilevskaja, M. F. Runtso, Mark Pearce, S. B. Ricciarini, S. A. Voronov, F. Cafagna, P. Picozza, Lorenzo Bonechi, D. Fedele, P. Papini, Y. T. Yurkin, V. Malvezzi, E. Vannuccini, N. Zampa, D. Campana, Roberto Bellotti, E. A. Bogomolov, Marco Casolino, S. Russo, G. C. Barbarino, A. N. Kvashnin, G. I. Vasilyev, L. Marcelli, Massimo Bongi, A. Basili, V. Di Felice, V. V. Mikhailov, P. Carlson, A. M. Galper, G. De Rosa, N. N. Nikonov, J. Lundquist, E. Taddei, M. Simon, S. Orsi |
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| Přispěvatelé: | M., Pearce, O., Adriani, M., Ambriola, Barbarino, Giancarlo, A., Basili, G. A., Bazilevskaja, R., Bellotti, M., Boezio, E. A., Bogornolov, L., Bonechi, M., Bongi, L., Bongiorno, V., Bonvicini, A., Bruno, F., Cafagna, D., Campana, P., Carlson, M., Casolino, G., Castellini, M. P., De, DE ROSA, Gianfranca, V. D., Felice, D., Fedele, A. M., Galper, P., Hofverberg, S. V., Koldashov, S. Y., Krutkov, A. N., Kvashnin, J., Lundquist, O., Maksumov, V., Malvezzi, L., Marcelli, W., Menn, V. V., Mikhailov, M., Minori, S., Misin, E., Mocchiutti, A., Morselli, N. N., Nikonov, S., Orsi, G., Osteria, P., Papini, P., Picozza, M., Ricci, S. B., Ricciarini, M. F., Runtso, S., Russo, M., Simon, R., Sparvoli, P., Spillantini, Y. I., Stozhkov, E., Taddei, A., Vacchi, E., Vannuccini, G., Vasilyev, S. A., Voronov, Y. T., Yurkin, G., Zampa, N., Zampa, V. G., Zverev |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Antiparticle
Satellite-borne experiment Solar minimum Inert gases Orbits Nuclear sciences Astrophysics Imaging techniques Local sources Helium law.invention Turbulent flow Settore FIS/04 - Fisica Nucleare e Subnucleare Time -of-flight Positron Isotopes Solar energy law Nuclear Medicine and Imaging Light nuclei Charge determinations Physics Modulation Solar physics Radiation PAMELA detector Cosmology Charge sign ANTIPROTONS Antimatter Magnets Precision studies Precise measurements Medical imaging Nuclear and High Energy Physics Radiology Nuclear Medicine and Imaging Radiology Ionizing radiation Silicon Solar modulation Satellites Low-energy particles Astrophysics::High Energy Astrophysical Phenomena En ergy spectrum Dark matter Cosmic ray Astrophysics::Cosmology and Extragalactic Astrophysics Trigger systems Cosmic rays Experiments Nonmetals Spectrum analysis Tellurium compounds Tungsten Electron energy spectrum Ray propagation Nuclear physics Antiproton |
| Popis: | PAMELA is a satellite-borne experiment designed for precision studies of the charged cosmic radiation. The primary scientific goal is the study of the antimatter component of the cosmic radiation (antiprotons, 80 MeV - 190 GeV; and positrons, 50 MeV - 270 GeV) in order to search for evidence of dark matter particle annihilations. PAMELA will also search for primordial antinuclei (in particular, anti-helium), and test cosmic-ray propagation models through precise measurements of the antiparticle energy spectrum and studies of light nuclei and their isotopes. Concomitant goals include a study of solar physics and solar modulation during the 24th solar minimum by investigating low energy particles in the cosmic radiation; and a reconstruction of the cosmic ray electron energy spectrum up to several TeV thereby allowing a possible contribution from local sources to be studied. PAMELA is housed on-board the Russian Resurs-DKl satellite, which was launched on June 15th 2006 in an elliptical (350-600 km altitude) orbit with an inclination of 70 degrees. PAMELA consists of a permanent magnet spectrometer, to provide rigidity and charge sign information; a Time-of-Flight and trigger system, for velocity and charge determination; a silicon-tungsten calorimeter, for lepton/hadron discrimination; and a neutron detector. An anticoincidence system is used offline to reject false triggers. In this article the PAMELA experiment and its status are reviewed. A preliminary discussion of data recorded in-orbit is also presented. |
| Databáze: | OpenAIRE |
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