Author: "Sparvoli, R" / Topic: astrophysics::high energy astrophysical phenomena - Searchworks@Jio Institute Digital Library Search Results

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86 results on '"Sparvoli, R"'

1. Time dependence of the flux of helium nuclei in cosmic rays measured by the PAMELA experiment between July 2006 and December 2009

Author: Marcelli, N., Boezio, M., Lenni, A., Menn, W., Munini, R., Aslam, O. P. M., Bisschoff, D., Ngobeni, M. D., Potgieter, M. S., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Santis, C., Galper, A. M., Koldashov, S. V., Koldobskiy, S., Kvashnin, A. N., Leonov, A. A., Malakhov, V. V., Marcelli, L., Martucci, M., Mayorov, A. G., Merg��, M., Mocchiutti, E., Monaco, A., Mori, N., Mikhailov, V. V., Osteria, G., Panico, B., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Sotgiu, A., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., and Zampa, N.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics - Solar and Stellar Astrophysics, Physics - Space Physics, Astrophysics::High Energy Astrophysical Phenomena, Physics::Space Physics, FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics (astro-ph.SR), Space Physics (physics.space-ph)
Abstract: Precise time-dependent measurements of the Z = 2 component in the cosmic radiation provide crucial information about the propagation of charged particles through the heliosphere. The PAMELA experiment, with its long flight duration (15th June 2006 - 23rd January 2016) and the low energy threshold (80 MeV/n) is an ideal detector for cosmic ray solar modulation studies. In this paper, the helium nuclei spectra measured by the PAMELA instrument from July 2006 to December 2009 over a Carrington rotation time basis are presented. A state-of-the-art three-dimensional model for cosmic-ray propagation inside the heliosphere was used to interpret the time-dependent measured fluxes. Proton-to-helium flux ratio time profiles at various rigidities are also presented in order to study any features which could result from the different masses and local interstellar spectra shapes.
Published: 2020

2. CALET on the International Space Station: The first three years of observations

Author: Brogi, P, Adriani, O, Akaike, Y, Asano, K, Asaoka, Y, Bagliesi, Mg, Berti, E, Bigongiari, G, Binns, Wr, Bonechi, S, Bongi, M, Bruno, A, Buckley, Jh, Cannady, N, Castellini, G, Checchia, C, Cherry, Ml, Collazuol, G, Di Felice, V, Ebisawa, K, Fuke, H, Guzik, Tg, Hams, T, Hibino, K, Ichimura, M, Ioka, K, Ishizaki, W, Israel, Mh, Kasahara, K, Kataoka, J, Kataoka, R, Katayose, Y, Kato, C, Kawanaka, N, Kawakubo, Y, Kohri, K, Krawczynski, Hs, Krizmanic, Jf, Link, J, Maestro, P, Marrocchesi, Ps, Messineo, Am, Mitchell, Jw, Miyake, S, Moiseev, Aa, Mori, M, Mori, N, Motz, Hm, Munakata, K, Murakami, H, Nakahira, S, Nishimura, J, De Nolfo, Ga, Okuno, S, Ormes, Jf, Ospina, N, Ozawa, S, Pacini, L, Palma, F, Papini, P, Rauch, Bf, Ricciarini, Sb, Sakai, K, Sakamoto, T, Sasaki, M, Shimizu, Y, Shiomi, A, Sparvoli, R, Spillantini, P, Stolzi, F, Sugita, S, Suh, Je, Sulaj, A, Takahashi, I, Takita, M, Tamura, T, Terasawa, T, Torii, S, Tsunesada, Y, Uchihori, Y, Vannuccini, E, Wefel, Jp, Yamaoka, K, Yanagita, S, Yoshida, A, and Yoshida, K
Subjects: Physics, electron, Spectrometer, DARK MATTER, Settore FIS/04, Astrophysics::High Energy Astrophysical Phenomena, Gamma ray, Astronomy, Cosmic ray, CALET, Electron, Condensed Matter Physics, Electromagnetic radiation, Atomic and Molecular Physics, and Optics, Spectral line, ANTIPROTONS, gamma rays, Cosmic rays, nuclei, International Space Station, Measuring instrument, Mathematical Physics
Abstract: The CALorimetric Electron Telescope CALET is a space instrument designed to carry out precision measurements of high energy cosmic-rays on the JEM-EF external platform on the International Space Station, where it has been collecting science data continuously since mid October 2015. In addition to its primary goal of identifying nearby sources of high-energy electrons and possible signatures of dark matter in the electron spectrum, CALET is carrying out extensive measurements of the energy spectra, relative abundances and secondary-to-primary ratios of elements from proton to iron, and even above (up to Z = 40), studying the details of galactic particle propagation and acceleration. An overview of CALET based on the data taken during the first three years of observations is presented, including a direct measurement of the electron+positron energy spectrum from 11 GeV to 4.8 TeV. The proton spectrum has been measured from 50 GeV to 10 TeV covering, for the first time with a single space-borne instrument, the whole energy interval previously investigated in separate sub-ranges by magnetic spectrometers and calorimetric instruments. Preliminary spectra of cosmic-ray nuclei are also presented, together with gamma-ray observations and searches for an e.m. counterpart of LIGO/Virgo GW events.
Published: 2020
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3. Ten years of PAMELA in space

Author: Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Santis, C., Di Felice, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mergè, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Munini, R., Mori, N., Osteria, G., Panico, B., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, B. S., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Santis, C., Di Felice, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Merge, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Munini, R., Mori, N., Osteria, G., Panico, B., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, B. S., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., and Zampa, N.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Settore FIS/01, Physics and Astronomy (all), Astrophysics::High Energy Astrophysical Phenomena, Physics::Space Physics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The PAMELA cosmic-ray detector was launched on June 15th 2006 on board the Russian Resurs-DK1 satellite, and during ten years of nearly continuous data-taking it has observed new interesting features in cosmic rays (CRs). In a decade of operation it has provided plenty of scientific data, covering different issues related to cosmic-ray physics. Its discoveries might change our basic vision of the mechanisms of production, acceleration and propagation of cosmic rays in the Galaxy. The antimatter measurements, focus of the experiment, have set strong constraints to the nature of Dark Matter. Search for signatures of more exotic processes (such as the ones involving Strange Quark Matter) was also pursued. Furthermore, the long-term operation of the instrument had allowed a constant monitoring of the solar activity during its maximum and a detailed and prolonged study of the solar modulation, improving the comprehension of the heliosphere mechanisms. PAMELA had also measured the radiation environment around the Earth, and it detected for the first time the presence of an antiproton radiation belt surrounding our planet. The operation of Resurs-DK1 was terminated in 2016. In this article we will review the main features of the PAMELA instrument and its constructing phases. The main part of the article will be dedicated to the summary of the most relevant PAMELA results over a decade of observation.
Published: 2017
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4. Extended Measurement of the Cosmic-Ray Electron and Positron Spectrum from 11 GeV to 4.8 TeV with the Calorimetric Electron Telescope on the International Space Station

Author: Adriani, O., Akaike, Y., Asano, K., Asaoka, Y., Bagliesi, M. G., Berti, E., Bigongiari, G., Binns, W. R., Bonechi, S., Bongi, M., Brogi, P., Buckley, J. H., Cannady, N., Castellini, G., Checchia, C., Cherry, M. L., Collazuol, G., Di Felice, V, Ebisawa, K., Fuke, H., Guzik, T. G., Hams, T., Hareyama, M., Hasebe, N., Hibino, K., Ichimura, M., Ioka, K., Ishizaki, W., Israel, M. H., Kasahara, K., Kataoka, J., Kataoka, R., Katayose, Y., Kato, C., Kawanaka, N., Kawakubo, Y., Kohri, K., Krawczynski, H. S., Krizmanic, J. F., Lomtadze, T., Maestro, P., Marrocchesi, P. S., Messineo, A. M., Mitchell, J. W., Miyake, S., Moiseev, A. A., Mori, K., Mori, M., Mori, N., Motz, H. M., Munakata, K., Murakami, H., Nakahira, S., Nishimura, J., de Nolfo, G. A., Okuno, S., Ormes, J. F., Ozawa, S., Pacini, L., Palma, F., Papini, P., Penacchioni, A., V, Rauch, B. F., Ricciarini, S. B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Y., Shiomi, A., Sparvoli, R., Spillantini, P., Stolzi, F., Suh, J. E., Sulaj, A., Takahashi, I, Takayanagi, M., Takita, M., Tamura, T., Tateyama, N., Terasawa, T., Tomida, H., Torii, S., Tsunesada, Y., Uchihori, Y., Ueno, S., Vannuccini, E., Wefel, J. P., Yamaoka, K., Yanagita, S., Yoshida, A., and Yoshida, K.
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Dark matter, General Physics and Astronomy, FOS: Physical sciences, Cosmic ray, Electrons, Calorimetry, International Space stations, 01 natural sciences, Spectral line, law.invention, Telescope, Nuclear physics, Physics and Astronomy (all), Positron, Cosmic ray measurement, Positrons, law, 0103 physical sciences, Alpha Magnetic Spectrometer, 14. Life underwater, 010306 general physics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Spectral index, 010308 nuclear & particles physics, Settore FIS/04, Spectrum analysis, Dark matter particles, Astrophysics - High Energy Astrophysical Phenomena, Fermi Gamma-ray Space Telescope
Abstract: 著者人数: 91名(所属. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS): 海老沢, 研; 福家, 英之; 森, 国城; 西村, 純; 高柳, 昌弘; 冨田, 洋; 上野, 史郎), Number of authors: 91(Affilication. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS): Ebisawa, Ken; Fuke, Hideyuki; Mori, Kunishiro; Nishimura, Jun; Takayanagi, Masahiro; Tomida, Hiroshi; Ueno, Shiro), 資料番号: SA1180105000
Published: 2018
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5. GAPS, low-energy antimatter for indirect dark-matter search

Author: Vannuccini, E., Tsuguo Aramaki, Bird, R., Boezio, M., Boggs, S. E., Bonvicini, V., Campana, D., Craig, W. W., Doetinchem, P., Everson, E., Fabris, L., Gahbauer, F., Gerrity, C., Fuke, H., Hailey, C. J., Hayashi, T., Kato, C., Kawachi, A., Kozai, M., Lowell, A., Martucci, M., Mognet, S. I., Munini, R., Munakata, K., Okazaki, S., Ong, R. A., Osteria, G., Perez, K., Quinn, S., Ryan, J., Re, V., Rogers, F., Saffold, N., Shimizu, Y., Sparvoli, R., Stoessl, A., Yoshida, A., Yoshida, T., Zampa, G., and Zweerink, J.
Subjects: Physics - Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment
Abstract: The General Antiparticle Spectrometer (GAPS) is designed to carry out indirect dark matter search by measuring low-energy cosmic-ray antiparticles. Below a few GeVs the flux of antiparticles produced by cosmic-ray collisions with the interstellar medium is expected to be very low and several well-motivated beyond-standard models predict a sizable contribution to the antideuteron flux. GAPS is planned to fly on a long-duration balloon over Antarctica in the austral summer of 2020. The primary detector is a 1m3 central volume containing planes of Si(Li) detectors. This volume is surrounded by a time-of-flight system to both trigger the Si(Li) detector and reconstruct the particle tracks. The detection principle of the experiment relies on the identification of the antiparticle annihilation pattern. Low energy antiparticles slow down in the apparatus and they are captured in the medium to form exotic excited atoms, which de-excite by emitting characteristic X-rays. Afterwards they undergo nuclear annihilation, resulting in a star of pions and protons. The simultaneous measurement of the stopping depth and the dE/dx loss of the primary antiparticle, of the X-ray energies and of the star particle-multiplicity provides very high rejection power, that is critical in rare-event search. GAPS will be able to perform a precise measurement of the cosmic antiproton flux below 250 MeV, as well as a sensitive search for antideuterons., Comment: 7 pages, 3 figures, Low Energy Antiproton Physics Conference (LEAP) 2018, Paris (France)
Published: 2018
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6. Separation of electrons and protons in the GAMMA-400 gamma-ray telescope

Author: Leonov, A. A., Galper, A. M., Bonvicini, V., Topchiev, N. P., Adriani, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Bergstrom, L., Berti, E., Bigongiari, G., Bobkov, S. G., Boezio, M., Bogomolov, E. A., Bonechi, S., Bongi, M., Bottai, S., Castellini, G., Cattaneo, P. W., Cumani, P., Dedenko, G. L., De Donato, C., Dogiel, V. A., Gorbunov, M. S., Gusakov, Yu. V., Hnatyk, B. I., Kadilin, V. V., Kaplin, V. A., Kaplun, A. A., Kheymits, M. D., Korepanov, V. E., Larsson, J., Loginov, V. A., Longo, F., Maestro, P., Marrocchesi, P. S., Mikhailov, V. V., Mocchiutti, E., Moiseev, A. A., Mori, N., Moskalenko, I. V., Naumov, P. Yu., Papini, P., Pearce, M., Picozza, P., Popov, A. V., Rappoldi, A., Ricciarini, S., Runtso, M. F., Ryde, F., Serdin, O. V., Sparvoli, R., Spillantini, P., Suchkov, S. I., Tavani, M., Taraskin, A. A., Tiberio, A., Tyurin, E. M., Ulanov, M. V., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Yurkin, Yu. T., Zampa, N., Zirakashvili, V. N., Zverev, V. G., Leonov, A. A, Galper, A. M., Bonvicini, V., Topchiev, N. P., Adriaini, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Bergstrom, L., Berti, E., Bigongiari, G., Bobkov, S. G., Boezio, M., Bogomolov, E. A., Bonechi, S., Bongi, M., Bottai, S., Castellini, G., Cattaneo, P. W., Cumani, Paolo, Dedenko, G. L., De Donato, C., Dogiel, V. A., Gorbunov, M. S., Gusakov, Y. u. V., Hnatyk, B. I., Kadilin, V. V., Kaplin, V. A., Kaplun, A. A., Kheymits, M. D., Korepanov, V. E., Larsson, J., Loginov, V. A., Longo, Francesco, Maestro, P., Marrocchesi, P. S., Mikhailov, V. V., Mocchiutti, E., Moiseev, A. A., Mori, N., Moskalenko, I. V., Naumov, P. Y. u., Papini, P., Pearce, M., Picozza, P., Rappoldi, A., Ricciarini, S., Runtso, M. F., Ryde, F., Serdin, O. V., Sparvoli, R., Spillantini, P., Suchkov, S. I., Taraskin, A. A., Tavani, M., Tiberio, A., Tyurin, E. M., Ulanov, M. V., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Yurkin, Y. u. T., Zampa, N., Zirakashvili, V. N., and Zverev, V. G.
Subjects: Space experiments, Atmospheric Science, Physics - Instrumentation and Detectors, Hadron and electromagnetic shower, Astrophysics::High Energy Astrophysical Phenomena, Gamma ray, FOS: Physical sciences, Aerospace Engineering, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Electron, law.invention, Telescope, Positron, law, Instrumentation and Methods for Astrophysics (astro-ph.IM), Cosmic rays, Physics, Range (particle radiation), Settore FIS/04, Gamma rays, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Space experiment, Hadron and electromagnetic showers, Geophysics, Space and Planetary Science, Gamma-ray telescope, General Earth and Planetary Sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Astrophysics - Instrumentation and Methods for Astrophysics, Fermi Gamma-ray Space Telescope
Abstract: The GAMMA-400 gamma-ray telescope is intended to measure the fluxes of gamma rays and cosmic-ray electrons and positrons in the energy range from 100 MeV to several TeV. Such measurements concern with the following scientific goals: search for signatures of dark matter, investigation of gamma-ray point and extended sources, studies of the energy spectra of Galactic and extragalactic diffuse emission, studies of gamma-ray bursts and gamma-ray emission from the active Sun, as well as high-precision measurements of spectra of high-energy electrons and positrons, protons, and nuclei up to the knee. The main components of cosmic rays are protons and helium nuclei, whereas the part of lepton component in the total flux is ~10E-3 for high energies. In present paper, the capability of the GAMMA-400 gamma-ray telescope to distinguish electrons and positrons from protons in cosmic rays is investigated. The individual contribution to the proton rejection is studied for each detector system of the GAMMA-400 gamma-ray telescope. Using combined information from all detector systems allow us to provide the proton rejection from electrons with a factor of ~4x10E5 for vertical incident particles and ~3x10E5 for particles with initial inclination of 30 degrees. The calculations were performed for the electron energy range from 50 GeV to 1 TeV., Comment: 19 pages, 10 figures, submitted to Advances and Space Research
Published: 2015
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7. Energy Spectrum of Cosmic-Ray Electron and Positron from 10 GeV to 3 TeV Observed with the Calorimetric Electron Telescope on the International Space Station

Author: CALET, Collaboration, Adriani, O., Asano, K., Bagliesi, M. G., Bigongiari, G., Binns, W. R., Bonechi, S., Bongi, M., Brogi, P., Buckley, J. H., Cannady, N., Castellini, G., Checchia, C., Cherry, M. L., Collazuol, G., Di, Felice V., Guzik, T. G., Hams, T., Ioka, K., Ishizaki, W., Israel, M. H., Javaid, A., Kataoka, R., Kato, C., Kawanaka, N., Kawakubo, Y., Krawczynski, H. S., Krizmanic, J. F., Lomtadze, T., Maestro, P., Marrocchesi, P. S., Messineo, A. M., Mitchell, J. W., Miyake, S., Moiseev, A. A., Mori, M., Mori, N., Motz, H. M., Munakata, K., de, Nolfo G. A., Ormes, J. F., Ozawa, Shunsuke, Pacini, L., Palma, F., Papini, P., Penacchioni, A. V., Rauch, B. F., Ricciarini, S. B., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Yuki, Shiomi, A., Sparvoli, R., Spillantini, P., Stolzi, F., Takahashi, I., Takita, M., Tsunesada, Y., Vannuccini, E., Wefel, J. P., Yamaoka, K., Yanagita, S., Yoshida, A., Akaike, Yosui, Asaoka, Yoichi, Ebisawa, Ken, Fuke, Hideyuki, Hareyama, Makoto, Hasebe, Nobuyuki, Hibino, Kinya, Ichimura, Masakatsu, Kasahara, Katsuaki, Kataoka, Jun, Katayose, Yusaku, Kuramata, Shiyuuichi, Mizutani, Kouhei, Mori, Kunishiro, Murakami, Hiroyuki, Nakahira, Satoshi, Nishimura, Jun, Okuno, Shoji, Takayanagi, Masahiro, Tamura, Tadahisa, Tateyama, Nobuhito, Terasawa, Toshio, Tomida, Hiroshi, Torii, Shoji, Uchihori, Yukio, Ueno, Shiro, Yoshida, Kenji, and Yuda, Toshinori
Subjects: Particle physics, Proton, Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, FOS: Physical sciences, Cosmic ray, Electrons, Electron, Calorimetry, 7. Clean energy, 01 natural sciences, law.invention, Telescope, Physics and Astronomy (all), Calorimetry, Cosmic rays, Cosmology, Electrons, Positrons, Space stations, Spectroscopy, Spectrum analysis, Tellurium compounds, Tellurium compounds, Positron, Positrons, law, 0103 physical sciences, 010306 general physics, Cosmic rays, Spectroscopy, Physics, Settore FIS/01, High Energy Astrophysical Phenomena (astro-ph.HE), Spectral index, 010308 nuclear & particles physics, Spectral density, Space stations, Spectrum analysis, Cosmology, High Energy Physics::Experiment, Astrophysics - High Energy Astrophysical Phenomena, Energy (signal processing)
Abstract: First results of a cosmic-ray electron + positron spectrum, from 10 GeV to 3 TeV, is presented based upon observations with the CALET instrument on the ISS starting in October, 2015. Nearly a half million electron + positron events are included in the analysis. CALET is an all-calorimetric instrument with total vertical thickness of 30 $X_0$ and a fine imaging capability designed to achieve a large proton rejection and excellent energy resolution well into the TeV energy region. The observed energy spectrum over 30 GeV can be fit with a single power law with a spectral index of -3.152 $\pm$ 0.016 (stat.+ syst.). Possible structure observed above 100 GeV requires further investigation with increased statistics and refined data analysis., 7 pages, 6 figures, published 1 November 2017 in Physical Review Letters
Published: 2017
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8. Latitudinal and radial gradients of galactic cosmic ray protons in the inner heliosphere – PAMELA and Ulysses observations

Author: De Simone, N., Di Felice, V., Gieseler, J., Boezio, M., Casolino, M., Picozza, P., Heber, B., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., Galper, A. M., Gillard, W., Grishantseva, L., Hofverberg, P., Jerse, G., Karelin, A. V., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Nikonov, N., Osteria, G., Palma, F., Papini, P., Pearce, M., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, L., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Wu, J., Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.
Subjects: 010504 meteorology & atmospheric sciences, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, Solar cycle 23, Cosmic ray, Electron, Astrophysics, 7. Clean energy, 01 natural sciences, law.invention, Telescope, Positron, law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Nuclear Experiment, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, Physics, Astronomy, Astronomy and Astrophysics, Antimatter, Physics::Space Physics, Astrophysics::Earth and Planetary Astrophysics, Nucleon, Heliosphere
Abstract: Ulysses, launched on 6 October 1990, was placed in an elliptical, high inclined (80.2) orbit around the Sun, and was switched off in June 2009. It has been the only spacecraft exploring high-latitude regions of the inner heliosphere. The Kiel Electron Telescope (KET) aboard Ulysses measures electrons from 3 MeV to a few GeV and protons and helium in the energy range from 6 MeV/nucleon to above 2 GeV/nucleon. The PAMELA (Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics) space borne experiment was launched on 15 June 2006 and is continuously collecting data since then. The apparatus measures electrons, positrons, protons, anti-protons and heavier nuclei from about 100 MeV to several hundreds of GeV. Thus the combination of Ulysses and PAMELA measurements is ideally suited to determine the spatial gradients during the extended minimum of solar cycle 23. For protons in the rigidity interval 1.6−1.8 GV we find a radial gradient of 2.7%/AU and a latitudinal gradient of −0.024%/degree. Although the latitudinal gradient is as expected negative, its value is much smaller than predicted by current particle propagation models. This result is of relevance for the study of propagation parameters in the inner heliosphere.
Published: 2011
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9. Improvement of the GAMMA-400 physical scheme for precision gamma-ray emission investigations

Author: Leonov, A. A., Galper, A. M., Topchiev, N. P., Bonvicini, V., Adriani, O., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Bakaldin, A. V., Bobkov, S. G., Boezio, M., Dalkarov, O. D., Egorov, A. E., Glushkov, N. A., Gorbunov, M. S., Gusakov, Yu. V., Hnatyk, B. I., Kadilin, V. V., Kaplin, V. A., Kheymits, M. D., Korepanov, V. E., Longo, F., Mikhailov, V. V., Mocchiutti, E., Moiseev, A. A., Moskalenko, I. V., Naumov, P. Yu., Picozza, P., Runtso, M. F., Serdin, O. V., Sparvoli, R., Spillantini, P., Stozhkov, Yu. I., Suchkov, S. I., Taraskin, A. A., Tavani, M., Yurkin, Yu. T., and Zverev, V. G.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: The main goal for the GAMMA-400 gamma-ray telescope mission is to perform a sensitive search for signatures of dark matter particles in high-energy gamma-ray emission. Measurements will also concern the following scientific goals: detailed study of the Galactic center region, investigation of point and extended gamma-ray sources, studies of the energy spectra of Galactic and extragalactic diffuse emissions. To perform these measurements the GAMMA-400 gamma-ray telescope possesses unique physical characteristics for energy range from ~20 MeV to ~1000 GeV in comparison with previous and current space and ground-based experiments. The major advantage of the GAMMA-400 instrument is excellent angular and energy resolutions for gamma-rays above 10 GeV. The gamma-ray telescope angular and energy resolutions for the main aperture at 100-GeV gamma rays are ~0.01 deg and ~1%, respectively. The special goal is to improve physical characteristics in the low- energy range from ~20 MeV to 100 MeV. Minimizing the amount of dead matter in the telescope aperture allows us to obtain the angular and energy resolutions better in this range than in current space missions. The gamma-ray telescope angular resolution at 50-MeV gamma rays is better than 5 deg and energy resolution is ~10%. We report the method providing these results., Comment: XXV ECRS 2016 Proceedings - eConf C16-09-04.3
Published: 2016
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10. CALET UPPER LIMITS ON X-RAY AND GAMMA-RAY COUNTERPARTS OF GW151226

Author: Adriani, O., Asano, K., Bagliesi, M. G., Bigongiari, G., Binns, W. R., Bonechi, S., Bongi, M., Brogi, P., Buckley, J. H., Cannady, N., Castellini, G., Checchia, C., Cherry, M. L., Collazuol, G., Di, Felice V., Guzik, T. G., Hams, T., Ioka, K., Ishizaki, W., Israel, M. H., Javaid, A., Kataoka, R., Kato, C., Kawanaka, N., Kawakubo, Y., Krawczynski, H. S., Krizmanic, J. F., Lomtadze, T., Maestro, P., Marrocchesi, P. S., Messineo, A. M., Mitchell, J. W., Miyake, S., Moiseev, A. A., Mori, M., Mori, N., Motz, H. M., Munakata, K., Ormes, J. F., Ozawa, Shunsuke, Pacini, L., Palma, F., Papini, P., Penacchioni, A. V., Rauch, B. F., Ricciarini, S., Sakai, K., Sakamoto, T., Sasaki, M., Shimizu, Yuki, Shiomi, A., Sparvoli, R., Spillantini, P., Stolzi, F., Takahashi, I., Takita, M., Tsunesada, Y., Vannuccini, E., Wefel, J. P., Yamaoka, K., Yanagita, S., Yoshida, A., Akaike, Yosui, Asaoka, Yoichi, Ebisawa, Ken, Fuke, Hideyuki, Hareyama, Makoto, Hasebe, Nobuyuki, Hibino, Kinya, Ichimura, Masakatsu, Kasahara, Katsuaki, Kataoka, Jun, Katayose, Yusaku, Kitamura, Hisashi, Kuramata, Shiyuuichi, Mizutani, Kouhei, Mori, Kunishiro, Murakami, Hiroyuki, Nakagawa, Yujin E., Nakahira, Satoshi, Nishimura, Jun, Okuno, Shoji, Takayanagi, Masahiro, Tamura, Tadahisa, Tateyama, Nobuhito, Terasawa, Toshio, Tomida, Hiroshi, Torii, Shoji, Uchihori, Yukio, Ueno, Shiro, Yoshida, Kenji, and Yuda, Toshinori
Subjects: Astrophysics::High Energy Astrophysical Phenomena, gamma-ray burst: general, FOS: Physical sciences, gamma-ray burst, Phosphor, Astrophysics, 01 natural sciences, Settore FIS/04 - Fisica Nucleare e Subnucleare, 0103 physical sciences, GW151226, Astronomical interferometer, BURSTS, 010306 general physics, 010303 astronomy & astrophysics, general - gravitational waves, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Luminosity (scattering theory), Gravitational wave, Settore FIS/01 - Fisica Sperimentale, X-ray, Gamma ray, gravitational waves, Astronomy and Astrophysics, Space and Planetary Science, Gamma-ray burst, Astrophysics - High Energy Astrophysical Phenomena
Abstract: 著者人数: 92名, Accepted: 2016-09-02, 資料番号: SA1160178000
Published: 2016

11. Time dependence of the e^- flux measured by PAMELA during the July 2006 - December 2009 solar minimum

Author: Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Donato, C., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Merge, M, Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Palma, F., Panico, B., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Sarkar, R., Scotti, V., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Potgieter, M. S., and Vos, E. E.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics - Solar and Stellar Astrophysics, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract: Precision measurements of the electron component in the cosmic radiation provide important information about the origin and propagation of cosmic rays in the Galaxy not accessible from the study of the cosmic-ray nuclear components due to their differing diffusion and energy-loss processes. However, when measured near Earth, the effects of propagation and modulation of galactic cosmic rays in the heliosphere, particularly significant for energies up to at least 30 GeV, must be properly taken into account. In this paper the electron (e^-) spectra measured by PAMELA down to 70 MeV from July 2006 to December 2009 over six-months time intervals are presented. Fluxes are compared with a state-of-the-art three-dimensional model of solar modulation that reproduces the observations remarkably well., 40 pages, 18 figures, 1 table
Published: 2015

12. PAMELA's measurements of geomagnetic cutoff variations during solar energetic particle events

Author: Bruno, A., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bravar, U., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Christian, E. C., De Donato, C., de Nolfo, G. A., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Lee, M., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Merg��, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Palma, F., Panico, B., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Ryan, J. M., Sarkar, R., Scotti, V., Simon, M., Sparvoli, R., Spillantini, P., Stochaj, S., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.
Subjects: Earth and Planetary Astrophysics (astro-ph.EP), Astrophysics - Solar and Stellar Astrophysics, Physics - Space Physics, Astrophysics::High Energy Astrophysical Phenomena, Physics::Space Physics, FOS: Physical sciences, Astrophysics::Earth and Planetary Astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), Space Physics (physics.space-ph), Physics::Geophysics, Astrophysics - Earth and Planetary Astrophysics
Abstract: Data from the PAMELA satellite experiment were used to measure the geomagnetic cutoff for high-energy ($\gtrsim$ 80 MeV) protons during the solar particle events on 2006 December 13 and 14. The variations of the cutoff latitude as a function of rigidity were studied on relatively short timescales, corresponding to single spacecraft orbits (about 94 minutes). Estimated cutoff values were cross-checked with those obtained by means of a trajectory tracing approach based on dynamical empirical modeling of the Earth's magnetosphere. We find significant variations in the cutoff latitude, with a maximum suppression of about 6 deg for $\sim$80 MeV protons during the main phase of the storm. The observed reduction in the geomagnetic shielding and its temporal evolution were compared with the changes in the magnetosphere configuration, investigating the role of IMF, solar wind and geomagnetic (Kp, Dst and Sym-H indexes) variables and their correlation with PAMELA cutoff results., Conference: The 34th International Cosmic Ray Conference (ICRC2015), 30 July - 6 August, 2015, The Hague, The Netherlands, Volume: PoS(ICRC2015)287
Published: 2015

13. Cosmic-Ray Positron Energy Spectrum Measured by PAMELA

Author: PAMELA Collaboration, Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bianco, A., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., De Donato, C., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S. A., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Merge', M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Palma, F., Papini, P., Pearce, M., Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, L., Sarkar, R., Scotti, V., Simon, M., Sparvoli, R., Spillantini, P., Stochaj, S. J., Stockton, J. C., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., Adriani, O., Barbarino, Giancarlo, Bazilevskaya, G. A., Bellotti, R., Bianco, A., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., De Donato, C., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S. A., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Merg?, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, Giuseppe, Palma, F., Papini, P., Pearce, M., Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, L., Sarkar, R., Scotti, V., Simon, M., Sparvoli, R., Spillantini, P., Stochaj, S. J., Stockton, J. C., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., O., Adriani, G. C., Barbarino, G. A., Bazilevskaya, R., Bellotti, A., Bianco, M., Boezio, E. A., Bogomolov, M., Bongi, V., Bonvicini, S., Bottai, A., Bruno, F., Cafagna, D., Campana, R., Carbone, P., Carlson, M., Casolino, G., Castellini, C., De Donato, C., De Santi, N., De Simone, V., Di Felice, Formato, Valerio, A. M., Galper, A. V., Karelin, S. V., Koldashov, S. A., Koldobskiy, S. Y., Krutkov, A. N., Kvashnin, A., Leonov, V., Malakhov, L., Marcelli, M., Martucci, A. G., Mayorov, W., Menn, M., Mergé, V. V., Mikhailov, Mocchiutti, Emiliano, A., Monaco, N., Mori, Munini, Riccardo, G., Osteria, F., Palma, P., Papini, M., Pearce, P., Picozza, C., Pizzolotto, M., Ricci, S. B., Ricciarini, L., Rossetto, R., Sarkar, V., Scotti, M., Simon, R., Sparvoli, P., Spillantini, S. J., Stochaj, J. C., Stockton, Y. I., Stozhkov, Vacchi, Andrea, E., Vannuccini, G. I., Vasilyev, S. A., Voronov, Y. T., Yurkin, G., Zampa, N., Zampa, and V. G., Zverev
Subjects: Solar minimum, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, FOS: Physical sciences, General Physics and Astronomy, Flux, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Kinetic energy, Cosmic Ray, 01 natural sciences, 7. Clean energy, Settore FIS/04 - Fisica Nucleare e Subnucleare, law.invention, Positron, law, Cosmic Rays, Dark Matter, 0103 physical sciences, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, PAMELA detector, 010308 nuclear & particles physics, Galaxy, Astrophysics - High Energy Astrophysical Phenomena
Abstract: Precision measurements of the positron component in the cosmic radiation provide important information about the propagation of cosmic rays and the nature of particle sources in our Galaxy. The satellite-borne experiment PAMELA has been used to make a new measurement of the cosmic-ray positron flux and fraction that extends previously published measurements up to 300 GeV in kinetic energy. The combined measurements of the cosmic-ray positron energy spectrum and fraction provide a unique tool to constrain interpretation models. During the recent solar minimum activity period from July 2006 to December 2009 approximately 24500 positrons were observed. The results cannot be easily reconciled with purely secondary production and additional sources of either astrophysical or exotic origin may be required., Comment: 14 pages, 4 figures, 1 table. Accepted for publication in Physical Review Letters. Corrected a typo in the flux units of Table 1
Published: 2013
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14. Study of the Gamma-ray performance of the GAMMA-400 Calorimeter

Author: Cumani, P., Galper, A. M., Bonvicini, V., Topchiev, N. P., Adriani, O., Aptekar, R. L., Argan, A., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Bergstrom, L., Berti, E., Bigongiari, G., Bobkov, S. G., Boezio, M., Bogomolov, E. A., Bonechi, S., Bongi, M., Bottai, S., Bulgarelli, A., Castellini, G., Cattaneo, P. W., Dedenko, G. L., Donato, C., Dogiel, V. A., Donnarumma, I., Valentina Fioretti, Gorbunov, M. S., Gusakov, Yu V., Hnatyk, B. I., Kadilin, V. V., Kaplin, V. A., Kaplun, A. A., Kheymits, M. D., Korepanov, V. E., Larsson, J., Leonov, A. A., Loginov, V. A., Longo, F., Maestro, P., Marrocchesi, P. S., Menshenin, A. L., Mikhailov, V. V., Mocchiutti, E., Moiseev, A. A., Mori, N., Moskalenko, I. V., Naumov, P. Yu, Palma, F., Papini, P., Pearce, M., Piano, G., Picozza, P., Popov, A. V., Rappoldi, A., Ricciarini, S., Runtso, M. F., Ryde, F., Sabatini, S., Sarkar, R., Serdin, O. V., Sparvoli, R., Spillantini, P., Suchkov, S. I., Tavani, M., Taraskin, A. A., Tiberio, A., Tyurin, E. M., Ulanov, M. V., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Vittorini, V., Yurkin, Yu T., Zampa, N., Zirakashvili, V. N., and Zverev, V. G.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: GAMMA-400 is a new space mission, designed as a dual experiment, capable to study both high energy gamma rays (from $\sim$100 MeV to few TeV) and cosmic rays (electrons up to 20 TeV and nuclei up to $\sim$10$^{15}$ eV). The full simulation framework of GAMMA-400 is based on the Geant4 toolkit. The details of the gamma-ray reconstruction pipeline in the pre-shower and calorimeter will be outlined. The performance of GAMMA-400 (PSF, effective area) have been obtained using this framework. The most updated results on them will be shown., 2014 Fermi Symposium proceedings - eConf C14102.1
Published: 2015

15. The GAMMA-400 Space Mission

Author: Cumani, P., Galper, A. M., Topchiev, N. P., Dogiel, V. A., Gusakov, Yu V., Suchkov, S. I., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Dedenko, G. L., Kadilin, V. V., Kaplin, V. A., Kaplun, A. A., Kheymits, M. D., Leonov, A. A., Loginov, V. A., Mikhailov, V. V., Naumov, P. Yu, Runtso, M. F., Taraskin, A. A., Tyurin, E. M., Yurkin, Yu T., Zverev, V. G., Bobkov, S. G., Gorbunov, M. S., Popov, A. V., Serdin, O. V., Aptekar, R. L., Bogomolov, E. A., Ulanov, M. V., Vasilyev, G. I., Men Shenin, A. L., Zarikashvili, V. N., Bonvicini, V., Boezio, M., Longo, F., Mocchiutti, E., Vacchi, A., Zampa, N., Adriani, O., Berti, E., Massimo Bongi, Bottai, S., Mori, N., Papini, P., Spillantini, P., Tiberio, A., Vannuccini, E., Castellini, G., Ricciarini, S., Bigongiari, G., Bonechi, S., Maestro, P., Marrocchesi, P. S., Cattaneo, P. W., Rappoldi, A., Donato, C., Picozza, P., Sparvoli, R., Tavani, M., Bergström, L., Larsson, J., Pearce, M., Ryde, F., Moiseev, A. A., Moskalenko, I. V., Hnatyk, B. I., and Korepanov, V. E.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: GAMMA-400 is a new space mission which will be installed on board the Russian space platform Navigator. It is scheduled to be launched at the beginning of the next decade. GAMMA-400 is designed to study simultaneously gamma rays (up to 3 TeV) and cosmic rays (electrons and positrons from 1 GeV to 20 TeV, nuclei up to 10$^{15}$-10$^{16}$ eV). Being a dual-purpose mission, GAMMA-400 will be able to address some of the most impelling science topics, such as search for signatures of dark matter, cosmic-rays origin and propagation, and the nature of transients. GAMMA-400 will try to solve the unanswered questions on these topics by high-precision measurements of the Galactic and extragalactic gamma-ray sources, Galactic and extragalactic diffuse emission and the spectra of cosmic-ray electrons + positrons and nuclei, thanks to excellent energy and angular resolutions., Comment: 2014 Fermi Symposium proceedings - eConf C14102.1
Published: 2015
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16. The GAMMA-400 space observatory: status and perspectives

Author: Galper, A. M., Bonvicini, V., Topchiev, N. P., Adriani, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Bergstrom, L., Berti, E., Bigongiari, G., Bobkov, S. G., Boezio, M., Bogomolov, E. A., Bonechi, S., Bongi, M., Bottai, S., Boyarchuk, K. A., Castellini, G., Cattaneo, P. W., Cumani, P., Dedenko, G. L., Donato, C., Dogiel, V. A., Gorbunov, M. S., Gusakov, Yu V., Hnatyk, B. I., Kadilin, V. V., Kaplin, V. A., Kaplun, A. A., Kheymits, M. D., Korepanov, V. E., Larsson, J., Leonov, A. A., Loginov, V. A., Longo, F., Maestro, P., Marrocchesi, P. S., Mikhailov, V. V., Mocchiutti, E., Moiseev, A. A., Mori, N., Moskalenko, I. V., Naumov, P. Yu, Papini, P., Pearce, M., Picozza, P., Popov, A. V., Rappoldi, A., Ricciarini, S., Runtso, M. F., Ryde, F., Serdin, O. V., Sparvoli, R., Spillantini, P., Suchkov, S. I., Tavani, M., Taraskin, A. A., Alessio Tiberio, Tyurin, E. M., Ulanov, M. V., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Yurkin, Yu T., Zampa, N., Zirakashvili, V. N., and Zverev, V. G.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics - Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: The present design of the new space observatory GAMMA-400 is presented in this paper. The instrument has been designed for the optimal detection of gamma rays in a broad energy range (from ~100 MeV up to 3 TeV), with excellent angular and energy resolution. The observatory will also allow precise and high statistic studies of the electron component in the cosmic rays up to the multi TeV region, as well as protons and nuclei spectra up to the knee region. The GAMMA-400 observatory will allow to address a broad range of science topics, like search for signatures of dark matter, studies of Galactic and extragalactic gamma-ray sources, Galactic and extragalactic diffuse emission, gamma-ray bursts and charged cosmic rays acceleration and diffusion mechanism up to the knee.
Published: 2014

17. The GAMMA-400 gamma-ray telescope characteristics. Angular resolution and electrons/protons separation

Author: Leonov, A. A., Galper, A. M., Adriaini, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Bergstrom, L., Berti, E., Bigongiari, G., Bobkov, S. G., Boezio, M., Bogomolov, E. A., Bonechi, S., Bongi, M., Bonvicini, V., Bottai, S., Boyarchuk, K. A., Castellini, G., Cattaneo, P. W., Cumani, P., Dedenko, G. L., Donato, C., Dogiel, V. A., Fuglesang, Ch, Gorbunov, M. S., Gusakov, Yu V., Hnatyk, B. I., Kadilin, V. V., Kaplin, V. A., Kaplun, A. A., Kheymits, M. D., Korepanov, V. E., Larsson, J., Loginov, V. A., Longo, F., Maestro, P., Mikhailov, V. V., Mocchiutti, E., Moiseev, A. A., Mori, N., Moskalenko, I. V., Naumov, P. Yu, Papini, P., Pearce, M., Picozza, P., Popov, A. V., Rappoldi, A., Ricciarini, S., Runtso, M. F., Ryde, F., Serdin, O. V., Sparvoli, R., Spillantini, P., Suchkov, S. I., Taraskin, A. A., Tavani, M., Tiberio, A., Topchiev, N. P., Tyurin, E. M., Ulanov, M. V., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Yurkin, Yu T., Zampa, N., Zarikashvili, V. N., and Zverev, V. G.
Subjects: Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: The measurements of gamma-ray fluxes and cosmic-ray electrons and positrons in the energy range from 100 MeV to several TeV, which will be implemented by the specially designed GAMMA-400 gamma-ray telescope, concern with the following broad range of science topics. Searching for signatures of dark matter, surveying the celestial sphere in order to study gamma-ray point and extended sources, measuring the energy spectra of Galactic and extragalactic diffuse gamma-ray emission, studying gamma-ray bursts and gamma-ray emission from the Sun, as well as high precision measuring spectra of high-energy electrons and positrons, protons and nuclei up to the knee. To clarify these scientific problems with the new experimental data the GAMMA-400 gamma-ray telescope possesses unique physical characteristics comparing with previous and present experiments. For gamma-ray energies more than 100 GeV GAMMA-400 provides the energy resolution of ~1% and angular resolution better than 0.02 deg. The methods developed to reconstruct the direction of incident gamma photon are presented in this paper, as well as, the capability of the GAMMA-400 gamma-ray telescope to distinguish electrons and positrons from protons in cosmic rays is investigated., Comment: 7 pages, 6 figures, submitted to Proceedings of Science
Published: 2014
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18. Dark Matter Search Perspectives with GAMMA-400

Author: Moiseev, A. A., Galper, A. M., Adriani, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Avanesov, G. A., Bergstrom, L., Boezio, M., Bonvicini, V., Boyarchuk, K. A., Dogiel, V. A., Gusakov, Yu. V., Fradkin, M. I., Fuglesang, Ch., Hnatyk, B. I., Kachanov, V. A., Kaplin, V. A., Kheymits, M. D., Korepanov, V., Larsson, J., Leonov, A. A., Longo, F., Maestro, P., Marrocchesi, P., Mazets, E. P., Mikhailov, V. V., Mocchiutti, E., Mori, N., Moskalenko, I., Naumov, P. Yu., Papini, P., Pearce, M., Picozza, P., Runtso, M. F., Ryde, F., Sparvoli, R., Spillantini, P., Suchkov, S. I., Tavani, M., Topchiev, N. P., Vacchi, A., Vannuccini, E., Yurkin, Yu. T., Zampa, N., Zarikashvili, V. N., and Zverev, V. G.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), 85-05, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: GAMMA-400 is a future high-energy gamma-ray telescope, designed to measure the fluxes of gamma-rays and cosmic-ray electrons + positrons, which can be produced by annihilation or decay of dark matter particles, and to survey the celestial sphere in order to study point and extended sources of gamma-rays, measure energy spectra of Galactic and extragalactic diffuse gamma-ray emission, gamma-ray bursts, and gamma-ray emission from the Sun. GAMMA-400 covers the energy range from 100 MeV to ~3000 GeV. Its angular resolution is ~0.01 deg(Eg > 100 GeV), and the energy resolution ~1% (Eg > 10 GeV). GAMMA-400 is planned to be launched on the Russian space platform Navigator in 2019. The GAMMA-400 perspectives in the search for dark matter in various scenarios are presented in this paper, 4 pages, 4 figures, submitted to the Proceedings of the International Cosmic-Ray Conference 2013, Brazil, Rio de Janeiro
Published: 2013

19. Time dependence of the proton flux measured by PAMELA during the July 2006 - December 2009 solar minimum

Author: Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Grishantseva, L., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., 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., Potgieter, M. S., and Vos, E. E.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics - Solar and Stellar Astrophysics, Astrophysics::High Energy Astrophysical Phenomena, Physics::Space Physics, FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract: The energy spectra of galactic cosmic rays carry fundamental information regarding their origin and propagation. These spectra, when measured near Earth, are significantly affected by the solar magnetic field. A comprehensive description of the cosmic radiation must therefore include the transport and modulation of cosmic rays inside the heliosphere. During the end of the last decade the Sun underwent a peculiarly long quiet phase well suited to study modulation processes. In this paper we present proton spectra measured from July 2006 to December 2009 by PAMELA. The large collected statistics of protons allowed the time variation to be followed on a nearly monthly basis down to 400 MV. Data are compared with a state-of-the-art three-dimensional model of solar modulation., 17 pages, 5 figures, 1 table, to appear in Astrophysical Journal. Corrected two elements of Table 1
Published: 2013

20. The Space-Based Gamma-Ray Telescope GAMMA-400 and Its Scientific Goals

Author: Galper, A. M., Adriani, O., Aptekar, R. L., Arkhangelskaja, I. V., Arkhangelskiy, A. I., Avanesov, G. A., Bergstrom, L., Bogomolov, E. A., Boezio, M., Bonvicini, V., Boyarchuk, K. A., Dogiel, V. A., Gusakov, Yu. V., Fradkin, M. I., Fuglesang, Ch., Hnatyk, B. I., Kachanov, V. A., Kadilin, V. V., Kaplin, V. A., Kheymits, M. D., Korepanov, V., Larsson, J., Leonov, A. A., Longo, F., Maestro, P., Marrocchesi, P., Mikhailov, V. V., Mocchiutti, E., Moiseev, A. A., Mori, N., Moskalenko, I., Naumov, P. Yu., Papini, P., Pearce, M., Picozza, P., Runtso, M. F., Ryde, F., Sparvoli, R., Spillantini, P., Suchkov, S. I., Tavani, M., Topchiev, N. P., Vacchi, A., Vannuccini, E., Vasiliev, G. I., Yurkin, Yu. T., Zampa, N., Zarikashvili, V. N., and Zverev, V. G.
Subjects: 85-05, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics
Abstract: The design of the new space-based gamma-ray telescope GAMMA-400 is presented. GAMMA-400 is optimized for the energy 100 GeV with the best parameters: the angular resolution ~0.01 deg, the energy resolution ~1%, and the proton rejection factor ~10E6, but is able to measure gamma-ray and electron + positron fluxes in the energy range from 100 MeV to 10 TeV. GAMMA-400 is aimed to a broad range of science topics, such as search for signatures of dark matter, studies of Galactic and extragalactic gamma-ray sources, Galactic and extragalactic diffuse emission, gamma-ray bursts, as well as high-precision measurements of spectra of cosmic-ray electrons + positrons, and nuclei., Comment: 6 pages, 3 figures, 1 table, submitted to to the Proceedings of the International Cosmic-Ray Conference 2013, Brazil, Rio de Janeiro
Published: 2013
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21. The cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV

Author: PAMELA Collaboration, Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Bruno, A., 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., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Malvezzi, 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., Stochaj, S. J., Stockton, J. C., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Wu, J., Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., O., Adriani, Barbarino, Giancarlo, G., Bazilevskaya, R., Bellotti, M., Boezio, E., Bogomolov, M., Bongi, V., Bonvicini, S., Borisov, S., Bottai, A., Bruno, F., Cafagna, D., Campana, R., Carbone, P., Carlson, M., Casolino, G., Castellini, L., Consiglio, M., De Pascale, C., De Santi, N., De Simone, V., Di Felice, A., Galper, W., Gillard, L., Grishantseva, G., Jerse, A., Karelin, S., Koldashov, S., Krutkov, A., Kvashnin, A., Leonov, V., Malakhov, V., Malvezzi, L., Marcelli, A., Mayorov, W., Menn, V., Mikhailov, E., Mocchiutti, A., Monaco, N., Mori, N., Nikonov, Osteria, Giuseppe, F., Palma, P., Papini, M., Pearce, P., Picozza, C., Pizzolotto, M., Ricci, S., Ricciarini, L., Rossetto, R., Sarkar, M., Simon, R., Sparvoli, P., Spillantini, S., Stochaj, J., Stockton, Y., Stozhkov, A., Vacchi, E., Vannuccini, G., Vasilyev, S., Voronov, J., Wu, Y., Yurkin, G., Zampa, N., Zampa, and V., Zverev
Subjects: Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Spectral index, genetic structures, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, General Physics and Astronomy, FOS: Physical sciences, Cosmic ray, Astrophysics, Electron, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, Galaxy, Settore FIS/04 - Fisica Nucleare e Subnucleare, Solar wind, Positron, Electron flux, 0103 physical sciences, Astrophysics - High Energy Astrophysical Phenomena, 010303 astronomy & astrophysics
Abstract: Precision measurements of the electron component in the cosmic radiation provide important information about the origin and propagation of cosmic rays in the Galaxy. Here we present new results regarding negatively charged electrons between 1 and 625 GeV performed by the satellite-borne experiment PAMELA. This is the first time that cosmic-ray electrons have been identified above 50 GeV. The electron spectrum can be described with a single power law energy dependence with spectral index -3.18 +- 0.05 above the energy region influenced by the solar wind (> 30 GeV). No significant spectral features are observed and the data can be interpreted in terms of conventional diffusive propagation models. However, the data are also consistent with models including new cosmic-ray sources that could explain the rise in the positron fraction., 11 pages, 3 figures, accepted for publication in PRL
Published: 2011
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22. PAMELA: Measurements of matter and antimatter in space

Author: De Simone N., Jerse G., Mocchiutti E., Adriani O., Barbarino G.C., Bazilevskaya G.A., Bellotti R., Boezio M., Bogomolov E.A., Bonechi L., Bongi M., Bonvicini V., Borisov S., Bottai S., Bruno A., Cafagna F., Campana D., Carbone R., Carlson P., Casolino M., Castellini G., Consiglio L., DePascale M.P., De Santis C., Di Felice V., Galper A.M., Gillard W., Grishantseva L., Karelin A.V., Koldashov S.V., Krutkov S.Y., Kvashnin A.N., Leonov A., Maksumov O., Malakhov V., Malvezzi V., Marcelli L., Mayorov A.G., Menn W., Monaco A., Mikhailov V.V., Mori N., Nikonov N.N., Osteria G., Palma F., Papini P., Pearce M., Picozza P., Pizzolotto C., Ricci M., Ricciarini S.B., Rossetto L., Runtso M., Sarkar R., Simon M., Sparvoli R., Spillantini P., Stozhkov Y.I., Vacchi A., Vannuccini E., Vasilyev G., Voronov S.A., Wu J., Yurkin Y.T., Zampa G., Zampa N., and Zverev V.G.
Subjects: Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astronomy and Astrophysics
Abstract: On the 15th of June 2006, the PAMELA satellite-borne experiment was launched from the Baikonur cosmodrome and it has been collecting data since July 2006. The apparatus comprises a time-of-flight system, a silicon-microstrip magnetic spectrometer, a silicon-tungsten electromagnetic calorimeter, an anticoincidence system, a shower tail counter scintillator and a neutron detector. The combination of these devices allows precision studies of the charged cosmic radiation to be conducted over a wide energy range (100 MeV-100's GeV) with high statistics. The primary scientific goal is the measurement of the antiproton and positron energy spectra in order to search for exotic sources, such as dark matter particle annihilations. PAMELA is also searching for primordial antinuclei (antihelium), and testing cosmic-ray propagation models through precise measurements of the antiparticle energy spectrum and precision studies of light nuclei and their isotopes. Moreover, PAMELA investigates phenomena connected with solar and earth physics. The main results and updated data will be presented. © Società Italiana di Fisica.
Published: 2011
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23. Observations of the December 13 and 14, 2006, Solar Particle Events in the 80 MeV/n - 3 GeV/n range from space with PAMELA detector

Author: Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Bruno, A., 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., Grishantseva, L., Gillard, W., Jerse, G., Karelin, A. V., 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., Sarkar, R., Rossetto, L., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Wu, J., Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.
Subjects: High Energy Physics - Experiment (hep-ex), Astrophysics - Solar and Stellar Astrophysics, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Nuclear Experiment, Solar and Stellar Astrophysics (astro-ph.SR), High Energy Physics - Experiment
Abstract: We present the space spectrometer PAMELA observations of proton and helium fluxes during the December 13 and 14, 2006 solar particle events. This is the first direct measurement of the solar energetic particles in space with a single instrument in the energy range from $\sim$ 80 MeV/n up to $\sim$ 3 GeV/n. In the event of December 13 measured energy spectra of solar protons and helium were compared with results obtained by neutron monitors and other detectors. Our measurements show a spectral behaviour different from those derived from the neutron monitor network. No satisfactory analytical fitting was found for the energy spectra. During the first hours of the December 13 event solar energetic particles spectra were close to the exponential form demonstrating rather significant temporal evolution. Solar He with energy up to ~1 GeV/n was recorded on December 13. In the event of December 14 energy of solar protons reached ~600 MeV whereas maximum energy of He was below 100 MeV/n. The spectra were slightly bended in the lower energy range and preserved their form during the second event. Difference in the particle flux appearance and temporal evolution in these two events may argue for a special conditions leading to acceleration of solar particles up to relativistic energies., Comment: Accepted for publication on Astrophysical journal
Published: 2011
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24. First detection of geomagnetically trapped antiprotons by the PAMELA experiment

Author: Bruno, A., Cafagna, F., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., 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., and Zverev, V. G.
Subjects: Nuclear and High Energy Physics, Cosmic rays, Magnetosphere, Radiation belt, SAA, Trapped antiprotons, Astrophysics::High Energy Astrophysical Phenomena, Physics::Space Physics, Physics::Accelerator Physics, Physics::Atomic Physics, Nuclear Experiment
Abstract: We present the measurement of geomagnetically trapped antiprotons in the South Atlantic Anomaly performed by the PAMELA satellite-bourne experiment. The existence of an antiproton radiation belt, predicted by several models as the product of cosmic ray interactions with the residual terrestrial atmosphere, is evidenced for the first time. PAMELA measured the antiproton spectrum in the kinetic energy range between 60 and 750 MeV, reporting a trapped antiproton flux which exceeds by about 3 orders of magnitude the interplanetary cosmic ray antiproton flux. An estimation of the mean under-cutoff antiproton flux outside radiation belts has been also provided.
Published: 2011

25. PAMELA results on the cosmic-ray antiproton flux from 60 MeV to 180 GeV in kinetic energy

Author: Adriani, O, Barbarino, G, Bazilevskaya, G, Bellotti, R, Boezio, M, Bogomolov, E, Bonechi, L, Bongi, M, Bonvicini, V, Borisov, S, Bottai, S, Bruno, A, Cafagna, F, Campana, D, Carbone, R, Carlson, P, Casolino, M, Castellini, G, Consiglio, L, DE PASCALE, Mp, DE SANTIS, C, De Simone, N, De Felice, V, Galper, A, Gillard, W, Grishantseva, L, Hofverberg, P, Jerse, G, Karelin, A, Koldashov, S, Krutkov, S, Kvashnin, A, Leonov, A, Malvezzi, V, Marcelli, L, Mayorov, A, Menn, W, Mikhailov, V, Minori, M, Mocchiutti, E, Monaco, A, Mori, N, Nikonov, N, Osteria, G, Papini, P, Pearce, M, Picozza, P, Pizzolotto, C, Ricci, M, Ricciarini, S, Rossetto, L, Simon, M, Sparvoli, R, Spillantini, P, Stozhkov, Y, Taddei, E, Vacchi, A, Vannuccini, E, Vasilyev, G, Voronov, S, Wu, J, Yurkin, Y, Zampa, G, Zampa, N, Zverev, V, Barbarino, Giancarlo, D., Campana, R., Carbone, L., Consiglio, and G., Osteria
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Antiparticle, Particle physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, FOS: Physical sciences, General Physics and Astronomy, Flux, Cosmic ray, Kinetic energy, 01 natural sciences, Settore FIS/04 - Fisica Nucleare e Subnucleare, Baryon, Antiproton, Antimatter, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Astrophysics - High Energy Astrophysical Phenomena, Nuclear Experiment, 010306 general physics
Abstract: The satellite-borne experiment PAMELA has been used to make a new measurement of the cosmic-ray antiproton flux and the antiproton-to-proton flux ratio which extends previously published measurements down to 60 MeV and up to 180 GeV in kinetic energy. During 850 days of data acquisition approximately 1500 antiprotons were observed. The measurements are consistent with purely secondary production of antiprotons in the galaxy. More precise secondary production models are required for a complete interpretation of the results., 11 pages, 3 figures, 1 table. Accepted for publication in Physical Review Letters
Published: 2010

26. The ARGO-YBJ detector and high energy GRBs RID G-6769-2011

Author: Bacci C, Bao KZ, Barone F, Bartoli B, Bastieri D, Bernardini P, Buonomo R, Calloni E, Cao BY, Cardarelli R, Catalanotti S, Cavaliere A, Cesaroni F, Creti P, Danzengluobu, Piazzoli BD, De Vincenzi M, Di Girolamo T, Di Sciascio G, Feng ZY, Fu Y, Gao XY, Geng QX, Guo HW, He HH, He M, Huang Q, Iacovacci M, Iucci N, Jai HY, Kong FM, Kuang HH, Labaciren, Li B, Li JY, Liu ZQ, Lu H, Ma XH, Mancarella G, MARI, Stefano Maria, Marsella G, Martello D, Mei DM, Meng XR, Milano L, Morselli A, Mu J, Oliviero M, Padovani P, Panareo M, Parisi M, Pellizzoni G, Peng ZR, Pistilli P, Santonico R, Sartori G, Sbarra C, Severino G, Shen PR, Sparvoli R, Stanescu C, Su J, Sun LR, Sun SC, Surdo A, Tan YH, Vernetto S, Vietri M, Wang CR, Wang H, Wang HY, Wei YN, Yang HT, Yao QK, Yu GC, Yue XD, Yuan AF, Zhang HM, Zhang JL, Zhang NJ, Zhang TJ, Zhang XY, Zhaxisangzhu, Zhaxiciren, Zhu QQ, BUSSINO, Severino Angelo Maria, Bacci, C, Bao, Kz, Barone, F, Bartoli, B, Bastieri, D, Bernardini, P, Buonomo, R, Bussino, Severino Angelo Maria, Calloni, E, Cao, By, Cardarelli, R, Catalanotti, S, Cavaliere, A, Cesaroni, F, Creti, P, Danzengluobu, Piazzoli, Bd, De Vincenzi, M, Di Girolamo, T, Di Sciascio, G, Feng, Zy, Fu, Y, Gao, Xy, Geng, Qx, Guo, Hw, He, Hh, He, M, Huang, Q, Iacovacci, M, Iucci, N, Jai, Hy, Kong, Fm, Kuang, Hh, Labaciren, Li, B, Li, Jy, Liu, Zq, Lu, H, Ma, Xh, Mancarella, G, Mari, Stefano Maria, Marsella, G, Martello, D, Mei, Dm, Meng, Xr, Milano, L, Morselli, A, Mu, J, Oliviero, M, Padovani, P, Panareo, M, Parisi, M, Pellizzoni, G, Peng, Zr, Pistilli, P, Santonico, R, Sartori, G, Sbarra, C, Severino, G, Shen, Pr, Sparvoli, R, Stanescu, C, Su, J, Sun, Lr, Sun, Sc, Surdo, A, Tan, Yh, Vernetto, S, Vietri, M, Wang, Cr, Wang, H, Wang, Hy, Wei, Yn, Yang, Ht, Yao, Qk, Yu, Gc, Yue, Xd, Yuan, Af, Zhang, Hm, Zhang, Jl, Zhang, Nj, Zhang, Tj, Zhang, Xy, Zhaxisangzhu, Zhaxiciren, and Zhu, Qq
Subjects: Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics
Abstract: ARGO-YBJ (Astrophysical Radiation with Ground-based Observatory at YangBaJing) is a detector optimized to study small size air showers. It consists of a layer of Resistive Plate Counters (RPCs) covering an area of similar to 6500 m(2) and will be located in the Yangbajing Laboratory (Tibet, China) at 4300 m a.s.l. ARGO-YBJ will be devoted to a wide range of fundamental issues in cosmic rays and astroparticle physics, including in particular gamma-ray astronomy and gamma-ray bursts physics in the range 10 GeV divided by 500 TeV. The sensitivity of ARGO-YBJ to detect high energy GRBs is presented.
Published: 1999

27. Observation of an anomalous positron abundance in the cosmic radiation

Author: Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Pascale, M. P., De Rosa, G., De Simone, N., Di Felice, V., Galper, A. M., Grishantseva, L., Hofverberg, P., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Orsi, S., Osteria, G., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics
Abstract: Positrons are known to be produced in interactions between cosmic-ray nuclei and interstellar matter ("secondary production"). Positrons may, however, also be created by dark matter particle annihilations in the galactic halo or in the magnetospheres of near-by pulsars. The nature of dark matter is one of the most prominent open questions in science today. An observation of positrons from pulsars would open a new observation window on these sources. Here we present results from the PAMELA satellite experiment on the positron abundance in the cosmic radiation for the energy range 1.5 - 100 GeV. Our high energy data deviate significantly from predictions of secondary production models, and may constitute the first indirect evidence of dark matter particle annihilations, or the first observation of positron production from near-by pulsars. We also present evidence that solar activity significantly affects the abundance of positrons at low energies., Comment: Submitted to Nature, 20 pages, 5 figures, 1 table
Published: 2008
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28. Results of the ARGO-YBJ test experiment

Author: Bacci, C., Bao, K. Z., Barone, Fabrizio, Bartoli, B., Bastieri, D., Bernardini, P., Buonomo, R., Bussino, S., Calloni, E., Cao, B. Y., Cardarelli, R., Catalanotti, S., Cavaliere, A., Cesaroni, F., Creti, P., Danzengluobu, D'Ettorre Piazzoli, B., De Vincenzi, M., Di Girolamo, T., Di Sciascio, G., Feng, Z. Y., Fu, Y., Gao, X. Y., Geng, Q. X., Guo, H. W., H. H., He, He, M., Huang, Q., Iacovacci, M., Iucci, N., Jai, H. Y., Kong, F. M., Kuang, H. H., Labaciren, Li, B., J. Y., Li, Liu, Z. Q., Lu, H., X. H., Ma, Mancarella, G., Mari, S. M., Marsella, G., Martello, D., Mei, D. M., Meng, X. R., Milano, L., Morselli, A., Mu, J., Oliviero, M., Padovani, P., Panareo, M., Parisi, M., Pellizzoni, G., Peng, Z. R., Pistilli, P., Santonico, R., Sartori, G., Sbarra, C., Severino, G., Shen, P. R., Sparvoli, R., Stanescu, C., Su, J., Sun, L. R., Sun, S. C., Surdo, A., Tan, Y. H., Vernetto, S., Vietri, M., Wang, C. R., Wang, H., Wang, H. Y., Wei, Y. N., Yang, H. T., Yao, Q. K., G. C., Yu, Yue, X. D., Yuan, A. F., Zhang, H. M., Zhang, J. L., Zhang, N. J., Zhang, T. J., Zhang, X. Y., Zhaxisangzhu, Zhaxiciren, Zhu, Q. Q., Bacci, C, Bao, Kz, Barone, F, Bartoli, B, Bernardini, Paolo, Bussino, S, Calloni, E, Cao, By, Cardarelli, R, Catalanotti, S, Cavaliere, S, Cesaroni, F, Creti, P, Danzengluobu, Piazzoli, Bd, DE VINCENZI, M, DI GIROLAMO, T, DI SCIASCIO, G, Feng, Zy, Fu, Y, Gao, Xy, Geng, Qx, Guo, Hw, He, Hh, He, M, Huang, Q, Iacovacci, M, Iucci, N, Jai, Hy, Jing, Cl, Kong, Fm, Kuang, Hh, Labaciren, Li, B, Li, Jy, Liu, Zq, Lu, H, Ma, Xh, Mancarella, Giovanni, Mari, Sm, Marsella, Giovanni, Martello, Daniele, Meng, Xr, Milano, L, Mu, J, Panareo, Marco, Peng, Zr, Pistilli, P, Santonico, R, Shen, Pr, Stanescu, C, Sun, Lr, Sun, Sc, Surdo, A, Tan, Yh, Vernetto, S, Wang, Cr, Wang, H, Wang, Hy, Wei, Yn, Yang, Ht, Yao, Qk, Yu, Gc, Yue, Xd, Yuan, Af, Zha, M, Zhang, Hm, Zhang, Jl, Zhang, Nj, Zhang, Xy, Zhaxisangzhu, Zhaxiciren, and Zhu, Qq
Subjects: Astroparticle physics, Physics, Resistive touchscreen, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, Cosmic ray, Gamma-ray astronomy, Gamma-ray Astronomy, Cosmic rays, Ground-based Astronomy, Nuclear physics, Angular distribution, High Energy Physics::Experiment, Argo, Time profile
Abstract: A resistive plate counters (RPCs) carpet of ∼50 m 2 has been put in operation in the Yangbajing Laboratory (Tibet, P.R. China) at 4300 m a.s.l., in order to study the RPCs performance at high altitude and the detector capability of imaging the EAS disc. This test has been performed in view of an enlarged use of RPCs for the ARGO-YBJ experiment. This experiment will be devoted to a wide range of fundamental issues in cosmic rays and astroparticle physics, including in particular γ-ray astronomy and γ-ray bursts physics at energies ⩾100 GeV. In this paper we present and discuss the procedures adopted to calibrate the detector and reconstruct the shower direction. Results concerning many shower features as the angular distribution, the density spectrum, the time profile of the shower front, are found well consistent with the expectation.
Published: 2002

29. In-flight performances of SilEye-2 Experiment and cosmic ray abundances inside space station Mir

Author: Avdeev, S., Bidoli, V., Bonvicini, W., Boezio, M., Carlson, P., Casolino, M., Castellini, G., De Grandis, E., De Pascale, M. P., Fuglesang, C., Furano, G., Galper, A., Khodarovich, A., Korotkov, M., Mazzenga, G., Morselli, A., Narici, L., Papini, P., Picozza, P., Popov, A., Reali, E., Ricci, M., Sparvoli, R., Spillantini, P., Vacchi, A., Vavilov, N., and Zampa, N.
Subjects: Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics
Abstract: Cosmic ray measurements performed with the instrument SilEye-2 on Mir space station are presented. SilEye-2 is a silicon detector telescope for the study of the causes of Light Flashes perception by astronauts. As a stand-alone device, it monitors in the short and long term the radiation composition inside Mir. The cosmic ray detector consists of an array of 6 active silicon strip detectors which allow nuclear identification of cosmic rays up to Iron. The device was operational for more than 1000 hours in the years 1998-2000, measuring also several Solar Particle Events. In this work we present the in-flight performance of the instrument and nuclear abundance data from Boron to Silicon above ~150 MeV/n inside Mir., 18 pages, 8 figures
Published: 2001

30. NINA: a silicon detector for cosmic-ray astrophysics

Author: Sparvoli, R., Bidoli, V., Casolino, M., De Pascale, M. P., Furano, G., Iannucci, A., Morselli, A., Picozza, P., Reali, E., Bakaldin, A., Galper, A., Koldashov, S., Korotkov, M., Leonov, A., Mikhailov, V., Murashov, A., Voronov, S., Boezio, M., Bonvicini, V., Cirami, R., Vacchi, A., Zampa, N., Ambriola, M., Bellotti, R., Cafagna, F., Ciacio, F., Circella, M., De Marzo, C., Adriani, O., Papini, P., Piccardi, S., Spillantini, P., and Straulino, S.
Subjects: Astrophysics, Cosmic ray measurement, Satellite observatories, Silicon sensors, Space applications, Cosmic ray nuclei, Cosmic ray detectors, Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, Silicon technology, Cosmic ray, Particle identification, Physics::Geophysics, Settore FIS/04 - Fisica Nucleare e Subnucleare, Instrumentation, Cosmic rays, Physics, Range (particle radiation), Space vehicles, Astronomy, On board, Orbit, Physics::Space Physics, Silicon detector, Polar, Satellite, Astrophysics::Earth and Planetary Astrophysics
Abstract: The NINA apparatus, on board the satellite Resurs-01 n.4, has been orbiting the Earth since July 10th, 1998, in polar revolution at 1 AU. Its scientific goal is the study of the galactic, solar and anomalous components of the cosmic rays in the range 10–200 MeV/n. After a description of the instrument, results of GCR fluxes measurements and of particle identification in orbit are presented.
Published: 2001

31. In-Orbit Performance of the Space Telescope NINA and GCR Flux Measurements

Author: The NINA Collaboration, Bidoli, V., Canestro, A., Casolino, M., DePascale, M. P., Furano, G., Iannucci, A., Morselli, A., Picozza, P., Reali, E., Sparvoli, R., Bakaldin, A., Galper, A., Koldashov, S., Korotkov, M., Leonov, A., Mikhailov, V., Murashov, A., Voronov, S., Boezio, M., Bonvicini, V., Cirami, R., Vacchi, A., Zampa, N., Ambriola, M., Bellotti, R., Cafagna, F., Ciacio, F., Circella, M., De Marzo, C., Adriani, O., Papini, P., Piccardi, S., Spillantini, P., Straulino, S., Bartalucci, S., Mazzenga, G., Ricci, M., and Castellini, G.
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics
Abstract: The NINA apparatus, on board the Russian satellite Resurs-01 n.4, has been in polar orbit since 1998 July 10, at an altitude of 840 km. Its main scientific task is to study the galactic, solar and anomalous components of cosmic rays in the energy interval 10--200 MeV/n. In this paper we present a description of the instrument and its basic operating modes. Measurements of Galactic Cosmic Ray spectra will also be shown., 38 pages, 10 figures, accepted for publication in the ApJS
Published: 2000

32. First Results from the PAMELA Space Mission

Author: Boezio, M., Bonvicini, V., Jerse, G., Mocchiutti, E., Vacchi, A., Zampa, G., Zampa, N., Adriani, O., Massimo Bongi, Bonechi, L., Bottai, S., Fedele, D., Papini, P., Ricciarini, S. B., Spillantini, P., Taddei, E., Vannuccini, E., Barbarino, G. C., Campana, D., Carbone, R., Osteria, G., Bazilevskaya, G. A., Kvashnin, A. N., Stozhkov, Y. I., Bellotti, R., Bruno, A., Cafagna, F., Bogomolov, E. A., Krutkov, S. Y., Vasilyev, G., Borisov, S., Casolino, M., Pascale, M. P., Simone, N., Di Felice, V., Malvezzi, V., Marcelli, L., Nikonov, N., Picozza, P., Sparvoli, R., Carlson, P., Hofverberg, P., Orsi, S., Pearce, M., Castellini, G., Galper, A. M., Grishantseva, L., Leonov, A., Koldashov, S. V., Mikhailov, V. V., Voronov, S. A., Yurkin, Y. T., Zverev, V. G., Menn, W., Simon, M., and Ricci, M.
Subjects: High Energy Physics - Experiment (hep-ex), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics, High Energy Physics - Experiment
Abstract: On the 15th of June 2006, the PAMELA satellite-borne experiment was launched from the Baikonur cosmodrome and it has been collecting data since July 2006. The apparatus comprises a time-of-flight system, a silicon-microstrip magnetic spectrometer, a silicon-tungsten electromagnetic calorimeter, an anticoincidence system, a shower tail counter scintillator and a neutron detector. The combination of these devices allows precision studies of the charged cosmic radiation to be conducted over a wide energy range (100 MeV - 100's GeV) with high statistics. The primary scientific goal is the measurement of the antiproton and positron energy spectrum in order to search for exotic sources, such as dark matter particle annihilations. PAMELA is also searching for primordial antinuclei (anti-helium), and testing cosmic-ray propagation models through precise measurements of the antiparticle energy spectrum and precision studies of light nuclei and their isotopes. We review the status of the apparatus and present preliminary results concerning antiparticle measurements and dark-matter indirect searches., Comment: Parallel talk at ICHEP08, Philadelphia, USA, July 2008. 5 pages, LaTeX, 3 eps figures

33. Cosmic-Ray Positron Identification with the PAMELA experiment

Author: Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bianco, A., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Francesco Cafagna, Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Donato, C., Pascale, M. P., Santis, C., Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krut Kov, S. Yu, Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Merge, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Palma, F., Papini, P., Pearce, M., Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, L., Sarkar, R., Simon, M., Scotti, V., Sparvoli, R., Spillantini, P., Stochaj, S. J., Stockton, J. C., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The PAMELA satellite borne experiment is designed to study cosmic rays with great accuracy in a wide energy range. One of PAMELA's main goal is the study of the antimatter component of cosmic rays. The experiment, housed on board the Russian satellite Resurs-DK1, was launched on June 15th 2006 and it is still taking data. In this work we present the measurement of galactic positron energy spectrum in the energy range between 500 MeV and few hundred GeV., Comment: 4 pages, 4 figures, v2: MLP variable description added, bibliography updated. A revised version will appear in proc. 33rd International Cosmic Ray Conference, Rio de Janeiro 2013

34. The PAMELA space experiment

Author: Mocchiutti, E., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Pascale, M. P., Simone, N., Di Felice, V., Galper, A. M., Gillard, W., Grishantseva, L., Hofverberg, P., Jerse, G., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Maksumov, O., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Nikonov, N. N., Osteria, G., Papini, P., Pearce, M., Picozza, P., Ricci, M., Sergio Bruno Ricciarini, Rossetto, L., Runtso, M., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Wu, J., Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The 15th of June 2006, the PAMELA satellite-borne experiment was launched from the Baikonur cosmodrome and it has been collecting data since July 2006. The apparatus comprises a time-of-flight system, a silicon-microstrip magnetic spectrometer, a silicon-tungsten electromagnetic calorimeter, an anticoincidence system, a shower tail counter scintillator and a neutron detector. The combination of these devices allows precision studies of the charged cosmic radiation to be conducted over a wide energy range (100 MeV -- 100's GeV) with high statistics. The primary scientific goal is the measurement of the antiproton and positron energy spectrum in order to search for exotic sources, such as dark matter particle annihilations. PAMELA is also searching for primordial antinuclei (anti-helium) and testing cosmic-ray propagation models through precise measurements of the anti-particle energy spectrum and precision studies of light nuclei and their isotopes. Moreover, PAMELA is investigating phenomena connected with solar and earth physics., Proceedings for the "XLIVth Rencontres de Moriond session devoted to Electroweak Interactions and Unified Theories", La Thuile 2009

35. Measurement of hydrogen and helium isotopes flux in galactic cosmic rays with the PAMELA experiment

Author: Alfonso Monaco, P. Spillantini, M. Merge, R. Carbone, Mirko Boezio, Sergey Koldobskiy, G. C. Barbarino, D. Campana, A. G. Mayorov, V. V. Mikhailov, P. Carlson, F. Cafagna, V. Di Felice, N. De Simone, M. Simon, G. Castellini, Marco Casolino, A. A. Leonov, L. Marcelli, A. Vacchi, S. A. Voronov, A. Bruno, Roberta Sparvoli, Sergey Koldashov, V. Bonvicini, Ritabrata Sarkar, Matteo Martucci, E. A. Bogomolov, Y. I. Stozhkov, S. Bottai, Riccardo Munini, Roberto Bellotti, V. V. Malakhov, Mark Pearce, S. B. Ricciarini, A. M. Galper, C. De Donato, P. Papini, A. N. Kvashnin, E. Vannuccini, V. G. Zverev, P. Picozza, G. Zampa, Marco Ricci, N. Zampa, G. A. Bazilevskaya, M. Bongi, Valerio Formato, A. V. Karelin, O. Adriani, Y. Krutkov, W. Menn, E. Mocchiutti, C. Pizzolotto, Y. T. Yurkin, G. I. Vasilyev, C. De Santis, G. Osteria, Nicola Mori, M. P. De Pascale, F. Palma, Valentina Scotti, Formato, V. p., Adriani, O. b., Barbarino, Giancarlo, Bazilevskaya, G., Bellotti, R. g., Boezio, M., Bogomolov, E., Bongi, M. b., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P. k., Casolino, M. m., Castellini, G., C. k., L, M. o., De, C. o., De, Simone, N. D., Felice, V. D., Galper, A., Karelin, A., Koldashov, S., Koldobskiy, S., Krutkov, Y., Kvashnin, A., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M. r., Mayorov, A., Menn, W., Merg��, M. o., Mikhailov, V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R. p., Osteria, Giuseppe, Palma, F. o., Papini, P., Pearce, M. k., Picozza, P. o., Pizzolotto, C. u., Ricci, M., Ricciarini, S., Sarkar, R., Simon, M., Scotti, V. d., Sparvoli, R. o., Spillantini, P. b., Stozhkov, Y., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S., Yurkin, Y., Zampa, G., Zampa, N., Zverev, V., Formato, V., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bogomolov, E. A., Bongi, M., Carlson, P., Casolino, M., De Donato, C., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Kvashnin, A. N., Martucci, M., Mayorov, A. G., Mergè, M., Mikhailov, V. V., Munini, Riccardo, Osteria, G., Palma, F., Pearce, M., Picozza, P., Pizzolotto, C., Ricciarini, S. B., Scotti, V., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Voronov, S. A., Yurkin, Y. T., and Zverev, V. G.
Subjects: Nuclear and High Energy Physics, Hydrogen, Astrophysics::High Energy Astrophysical Phenomena, Flux, chemistry.chemical_element, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Cosmic ray propagation, Isotopes, PAMELA, Instrumentation, Settore FIS/04 - Fisica Nucleare e Subnucleare, law.invention, law, Isotopes of helium, Physics, Cosmic ray measurement, Isotopes, PAMELA detector, Cosmic ray propagation, Galactic cosmic rays, Helium isotopes, Magnet spectrometers, PAMELA, Propagation models, Satellite-borne experiment, Time-of-flight system, Detector, Astronomy, Cosmic rays, Experiments, Galaxies, Isotopes, Rigidity, chemistry, Antimatter, Physics::Space Physics, Satellite
Abstract: PAMELA is a satellite borne experiment designed to study with great accuracy cosmic rays of galactic, solar, and trapped nature, with particular focus on the antimatter component. The detector consists of a permanent magnet spectrometer core to provide rigidity and charge sign information, a Time-of-Flight system for velocity and charge information, a Silicon-Tungsten calorimeter and a Neutron detector for lepton/hadron identification. The velocity and rigidity information allow the identification of different isotopes for Z=1 and Z=2 particles in the energy range 100 MeV/n to 1 GeV/n. In this work we will present the PAMELA results on the H and He isotope fluxes based on the data collected during the 23rd solar minimum from 2006 to 2007. Such fluxes carry relevant information helpful in constraining parameters in galactic cosmic rays propagation models complementary to those obtained from other secondary to primary measurements such as the boron-to-carbon ratio. �� 2013 Elsevier B.V.
Published: 2014
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36. MEASUREMENT OF BORON AND CARBON FLUXES IN COSMIC RAYS WITH THE PAMELA EXPERIMENT

Author: A. G. Mayorov, Mark Pearce, D. Campana, Piero Spillantini, S. Y. Krutkov, C. De Donato, Yuri Stozhkov, W. Menn, C. De Santis, Roberta Sparvoli, P. Picozza, G. Vasilyev, V. G. Zverev, Y. T. Yurkin, E. Vannuccini, V. Di Felice, F. Palma, R. Munini, N. De Simone, V. V. Malakhov, Paolo Papini, Sergey Koldashov, S. B. Ricciarini, B. Panico, Gianluigi Zampa, O. Adriani, C. Pizzolotto, L. Marcelli, F. Cafagna, R. Carbone, E. A. Bogomolov, M. Simon, Valerio Formato, M. Merge, Marco Casolino, Per Carlson, M. Martucci, G. Castellini, V. V. Mikhailov, S. A. Voronov, Massimo Bongi, Nicola Mori, N. Zampa, E. Mocchiutti, G. A. Bazilevskaya, A. Bruno, S. Bottai, I. A. Danilchenko, Andrea Vacchi, Alexey Leonov, M. Ricci, Laura Rossetto, V. Bonvicini, Ritabrata Sarkar, V. Scotti, Sergey Koldobskiy, Giancarlo Barbarino, Giuseppe Osteria, Mirko Boezio, A. V. Karelin, Roberto Bellotti, A. M. Galper, A. N. Kvashnin, Alfonso Monaco, Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Danilchenko, I. A., De Donato, C., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krutkov, Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mergè, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, Riccardo, Osteria, G., Palma, F., Panico, B., Papini, P., Pearce, M., Piccozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, L., Sarkar, R., Scotti, V., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., Adriani, O. b., Barbarino, Giancarlo, Bazilevskaya, G., Bellotti, R. g., Bogomolov, E., Bongi, M. b., Bruno, A. g., Casolino, M. l., Danilchenko, I., C. o., De, Simone, N. D., Felice, V. p., Formato, V. q., Galper, A., Karelin, A., Koldashov, S., Krutkov, S., Kvashnin, A., Marcelli, L. o., Martucci, M. r., Mayorov, A., Merg��, M. o., Mikhailov, V., Monaco, A. g., Mori, N. t., Munini, R. q., Osteria, Giuseppe, Palma, F. o., Picozza, P. o., Pizzolotto, C. u., Ricciarini, S. m., Scotti, V. d., Sparvoli, R. o., Spillantini, P. b., Stozhkov, Y., Voronov, S., Yurkin, Y., and Zverev, V.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Astroparticle physics, Physics, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, chemistry.chemical_element, Astronomy and Astrophysics, Cosmic ray, PAMELA, cosmic rays, boron carbon, Kinetic energy, Spectral line, Galaxy, Settore FIS/04 - Fisica Nucleare e Subnucleare, astroparticle physics, cosmic rays, Space and Planetary Science, boron carbon, Nuclear physics, chemistry, PAMELA, Astrophysics - High Energy Astrophysical Phenomena, Boron, Carbon, Dimensionless quantity
Abstract: The propagation of cosmic rays inside our galaxy plays a fundamental role in shaping their injection spectra into those observed at Earth. One of the best tools to investigate this issue is the ratio of fluxes for secondary and primary species. The boron-to-carbon (B/C) ratio, in particular, is a sensitive probe to investigate propagation mechanisms. This paper presents new measurements of the absolute fluxes of boron and carbon nuclei as well as the B/C ratio from the PAMELA space experiment. The results span the range 0.44-129 GeV/n in kinetic energy for data taken in the period 2006 July to 2008 March. �� 2014. The American Astronomical Society. All rights reserved.
Published: 2014
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37. Helium fluxes measured by the PAMELA experiment from the minimum to the maximum solar activity for solar cycle 24

Author: N. Marcelli, M. Boezio, A. Lenni, W. Menn, R. Munini, O. P. M. Aslam, D. Bisschoff, M. D. Ngobeni, M. S. Potgieter, O. Adriani, G. C. Barbarino, G. A. Bazilevskaya, R. Bellotti, E. A. Bogomolov, M. Bongi, V. Bonvicini, A. Bruno, F. Cafagna, D. Campana, P. Carlson, M. Casolino, G. Castellini, C. De Santis, A. M. Galper, S. V. Koldashov, S. Koldobskiy, A. N. Kvashnin, A. A. Leonov, V. V. Malakhov, L. Marcelli, M. Martucci, A. G. Mayorov, M. Mergè, E. Mocchiutti, A. Monaco, N. Mori, V. V. Mikhailov, G. Osteria, B. Panico, P. Papini, M. Pearce, P. Picozza, M. Ricci, S. B. Ricciarini, M. Simon, A. Sotgiu, R. Sparvoli, P. Spillantini, Y. I. Stozhkov, A. Vacchi, E. Vannuccini, G. I. Vasilyev, S. A. Voronov, Y. T. Yurkin, G. Zampa, N. Zampa, Marcelli, N., Boezio, M., Lenni, A., Munini, W. Menn R., Aslam, O. P. M., Bisschoff, D., Ngobeni, M. D., Potgieter, M. S., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bogomolov, R. Bellotti E. A., Bongi, M., Bonvicini, V., Bruno, A., Cafagna, F., Carlson, D. Campana P., Casolino, M., Castellini, G., Galper, C. De Santis A. M., Koldashov, S. V., Koldobskiy, S., Kvashnin, A. N., Leonov, A. A., Malakhov, V. V., Marcelli, L., Martucci, M., Mayorov, A. G., Mergè, M., Mocchiutti, E., Monaco, A., Mori, N., Mikhailov, V. V., Osteria, G., Panico, B., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Sotgiu, A., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., and Zampa, N.
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Settore FIS/01, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, Heliosphere, Cosmic ray detectors, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, Cosmic ray astronomy, Physics::Space Physics, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics (astro-ph.SR)
Abstract: Time-dependent energy spectra of galactic cosmic rays (GCRs) carry fundamental information regarding their origin and propagation. When observed at the Earth, these spectra are significantly affected by the solar wind and the embedded solar magnetic field that permeates the heliosphere, changing significantly over an 11-year solar cycle. Energy spectra of GCRs measured during different epochs of solar activity provide crucial information for a thorough understanding of solar and heliospheric phenomena. The PAMELA experiment had collected data for almost ten years (15th June 2006 - 23rd January 2016), including the minimum phase of solar cycle 23 and the maximum phase of solar cycle 24. In this paper, we present new spectra for helium nuclei measured by the PAMELA instrument from January 2010 to September 2014 over a three Carrington rotation time basis. These data are compared to the PAMELA spectra measured during the previous solar minimum providing a picture of the time dependence of the helium nuclei fluxes over a nearly full solar cycle. Time and rigidity dependencies are observed in the proton-to-helium flux ratios. The force-field approximation of the solar modulation was used to relate these dependencies to the shapes of the local interstellar proton and helium-nuclei spectra., 9 pages, 5 figures
Published: 2022

38. Design of an Antimatter Large Acceptance Detector In Orbit (ALADInO)

Author: Oscar Adriani, Corrado Altomare, Giovanni Ambrosi, Philipp Azzarello, Felicia Carla Tiziana Barbato, Roberto Battiston, Bertrand Baudouy, Benedikt Bergmann, Eugenio Berti, Bruna Bertucci, Mirko Boezio, Valter Bonvicini, Sergio Bottai, Petr Burian, Mario Buscemi, Franck Cadoux, Valerio Calvelli, Donatella Campana, Jorge Casaus, Andrea Contin, Raffaello D’Alessandro, Magnus Dam, Ivan De Mitri, Francesco de Palma, Laurent Derome, Valeria Di Felice, Adriano Di Giovanni, Federico Donnini, Matteo Duranti, Emanuele Fiandrini, Francesco Maria Follega, Valerio Formato, Fabio Gargano, Francesca Giovacchini, Maura Graziani, Maria Ionica, Roberto Iuppa, Francesco Loparco, Jesús Marín, Samuele Mariotto, Giovanni Marsella, Gustavo Martínez, Manel Martínez, Matteo Martucci, Nicolò Masi, Mario Nicola Mazziotta, Matteo Mergé, Nicola Mori, Riccardo Munini, Riccardo Musenich, Lorenzo Mussolin, Francesco Nozzoli, Alberto Oliva, Giuseppe Osteria, Lorenzo Pacini, Mercedes Paniccia, Paolo Papini, Mark Pearce, Chiara Perrina, Piergiorgio Picozza, Cecilia Pizzolotto, Stanislav Pospíšil, Michele Pozzato, Lucio Quadrani, Ester Ricci, Javier Rico, Lucio Rossi, Enrico Junior Schioppa, Davide Serini, Petr Smolyanskiy, Alessandro Sotgiu, Roberta Sparvoli, Antonio Surdo, Nicola Tomassetti, Valerio Vagelli, Miguel Ángel Velasco, Xin Wu, Paolo Zuccon, Adriani O., Altomare C., Ambrosi G., Azzarello P., Barbato F.C.T., Battiston R., Baudouy B., Bergmann B., Berti E., Bertucci B., Boezio M., Bonvicini V., Bottai S., Burian P., Buscemi M., Cadoux F., Calvelli V., Campana D., Casaus J., Contin A., D'alessandro R., Dam M., De Mitri I., de Palma F., Derome L., Di Felice V., Di Giovanni A., Donnini F., Duranti M., Fiandrini E., Follega F.M., Formato V., Gargano F., Giovacchini F., Graziani M., Ionica M., Iuppa R., Loparco F., Marin J., Mariotto S., Marsella G., Martinez G., Martinez M., Martucci M., Masi N., Mazziotta M.N., Merge M., Mori N., Munini R., Musenich R., Mussolin L., Nozzoli F., Oliva A., Osteria G., Pacini L., Paniccia M., Papini P., Pearce M., Perrina C., Picozza P., Pizzolotto C., Pospisil S., Pozzato M., Quadrani L., Ricci E., Rico J., Rossi L., Schioppa E.J., Serini D., Smolyanskiy P., Sotgiu A., Sparvoli R., Surdo A., Tomassetti N., Vagelli V., Velasco M.A., Wu X., Zuccon P., Département des Accélérateurs, de Cryogénie et de Magnétisme (ex SACM) (DACM), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)
Subjects: antimatter, cosmic rays, dark matter, particle detectors, space instrumentation, Astrophysics::High Energy Astrophysical Phenomena, Settore FIS/01 - Fisica Sperimentale, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation
Abstract: International audience; A new generation magnetic spectrometer in space will open the opportunity to investigate the frontiers in direct high-energy cosmic ray measurements and to precisely measure the amount of the rare antimatter component in cosmic rays beyond the reach of current missions. We propose the concept for an Antimatter Large Acceptance Detector In Orbit (ALADInO), designed to take over the legacy of direct measurements of cosmic rays in space performed by PAMELA and AMS-02. ALADInO features technological solutions conceived to overcome the current limitations of magnetic spectrometers in space with a layout that provides an acceptance larger than 10 m sr. A superconducting magnet coupled to precision tracking and time-of-flight systems can provide the required matter–antimatter separation capabilities and rigidity measurement resolution with a Maximum Detectable Rigidity better than 20 TV. The inner 3D-imaging deep calorimeter, designed to maximize the isotropic acceptance of particles, allows for the measurement of cosmic rays up to PeV energies with accurate energy resolution to precisely measure features in the cosmic ray spectra. The operations of ALADInO in the Sun–Earth L2 Lagrangian point for at least 5 years would enable unique revolutionary observations with groundbreaking discovery potentials in the field of astroparticle physics by precision measurements of electrons, positrons, and antiprotons up to 10 TeV and of nuclear cosmic rays up to PeV energies, and by the possible unambiguous detection and measurement of low-energy antideuteron and antihelium components in cosmic rays.
Published: 2022
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39. PAMELA mission: heralding a new era in cosmic ray physics

Author: Valentina Scotti, Valerio Formato, Mirko Boezio, V. G. Zverev, E. Mocchiutti, F. Palma, C. De Donato, O. Adriani, W. Menn, Per Carlson, Alfonso Monaco, A. G. Mayorov, A. V. Karelin, M. Merge, Roberta Sparvoli, G. Castellini, M. Bongi, G. I. Vasilyev, V. V. Malakhov, Riccardo Munini, G. Zampa, Beatrice Panico, L. Marcelli, C. De Santis, Mark Pearce, S. B. Ricciarini, G. Osteria, C. Pizzolotto, M. Simon, A. A. Leonov, P. Papini, S. A. Voronov, A. Vacchi, A. Bruno, Matteo Martucci, E. Vannuccini, M. P. De Pascale, Ritabrata Sarkar, E. A. Bogomolov, S. Yu. Krutkov, S. Bottai, Roberto Bellotti, N. De Simone, Nicola Mori, A. M. Galper, R. Carbone, A. N. Kvashnin, Sergey Koldobskiy, G. C. Barbarino, Y. T. Yurkin, Maria Teresa Ricci, F. Cafagna, M. D. Kheymits, N. Zampa, G. A. Bazilevskaya, V. V. Mikhailov, V. Di Felice, V. Bonvicini, Y. I. Stozhkov, P. Picozza, P. Spillantini, Sergey Koldashov, D. Campana, Marco Casolino, Ricciarini, S. B., Ariani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Donato, C., De Pascale, M. P., De Santis, C., De Simone, N., De Felice, V., Di Formato, V., Galper, A. M., Karelin, A. V., Kheymits, M. D, Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mergè, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, Riccardo, Osteria, G., Palma, F., Panico, B., Papini, P., Pearce, M., Picozza, P., Pizzolotto, C., Ricci, M., Sarkar, R., Simon, M., Scotti, V., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., Ricciarini, S., Adriani, O. b., Barbarino, Giancarlo, Bazilevskaya, G., Bellotti, R. g., Bogomolov, E., Bongi, M. b., Bruno, A. g., Casolino, M. l., Donato, C. D., M. n., De, C. n., De, Simone, N. D., Felice, V. D., Formato, V. o., Galper, A., Karelin, A., Kheymits, M., Koldashov, S., Krutkov, S., Kvashnin, A., Martucci, M. q., Mayorov, A., Merg??????, M. n., Mikhailov, V., Munini, R. o., Osteria, Giuseppe, Palma, F. n., Picozza, P. n., C. s., T, Scotti, V. d., Sparvoli, R. n., Spillantini, P. b., Stozhkov, Y., Vasilyev, G., Voronov, S., Yurkin, Y., and Zverev, V.
Subjects: Antimatter, QC1-999, Astrophysics::High Energy Astrophysical Phenomena, space experiment, Dark matter, Particle detectors, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Earth's magnetosphere, Settore FIS/04 - Fisica Nucleare e Subnucleare, Physics and Astronomy (all), Heliosphere, symbols.namesake, PAMELA, PAMELA, space experiment, cosmic rays, antimatter, darkmatter, Cosmic rays, Physics, COSMIC cancer database, darkmatter, Astronomy, Galaxy, Antiproton, Van Allen radiation belt, Physics::Space Physics, symbols
Abstract: After seven years of data taking in space, the experiment PAMELA is showing very interesting features in cosmic rays, namely in the fluxes of protons, helium, electrons, that might change our basic vision of the mechanisms of production, acceleration and propagation of cosmic rays in the galaxy. In addition, PAMELA measurements of cosmic antiproton and positron fluxes are setting strong constraints to the nature of Dark Matter. The continuous particle detection is allowing a constant monitoring of the solar activity and detailed study of the solar modulation for a long period, giving important improvements to the comprehension of the heliosphere mechanisms. PAMELA is also measuring the radiation environment around the Earth, and has recently discovered an antiproton radiation belt. ?????? Owned by the authors, published by EDP Sciences, 2014.
Published: 2014
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40. Time dependence of the flux of helium nuclei in cosmic rays measured by the pamela experiment between 2006 july and 2009 december

Author: A. N. Kvashnin, M. Simon, Mark Pearce, S. B. Ricciarini, Per Carlson, N. Marcelli, P. Papini, E. Vannuccini, O. Adriani, W. Menn, M. D. Ngobeni, F. Cafagna, Sergey Koldobskiy, G. C. Barbarino, V. Bonvicini, Y. I. Stozhkov, N. Zampa, G. A. Bazilevskaya, Andrea Vacchi, P. Spillantini, V. V. Mikhailov, E. Mocchiutti, V. V. Malakhov, M. Bongi, Alfonso Monaco, Alessandro Sotgiu, R. Sparvoli, G. Osteria, A. Bruno, M. Merge, O. P. M. Aslam, Matteo Martucci, S. A. Voronov, Roberto Bellotti, S. V. Koldashov, E. A. Bogomolov, A. M. Galper, Marco Ricci, A. Lenni, D. Campana, G. I. Vasilyev, Marco Casolino, C. De Santis, Alexey Leonov, Y. T. Yurkin, Driaan Bisschoff, Riccardo Munini, Nicola Mori, L. Marcelli, A. G. Mayorov, G. Castellini, M. S. Potgieter, G. Zampa, Beatrice Panico, P. Picozza, Mirko Boezio, Marcelli, N., Boezio, M., Lenni, A., Menn, W., Munini, R., Aslam, O. P. M., Bisschoff, D., Ngobeni, M. D., Potgieter, M. S., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Santis, C., Galper, A. M., Koldashov, S. V., Koldobskiy, S., Kvashnin, A. N., Leonov, A. A., Malakhov, V. V., Marcelli, L., Martucci, M., Mayorov, A. G., Merg, M., Mocchiutti, E., Monaco, A., Mori, N., Mikhailov, V. V., Osteria, G., Panico, B., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Sotgiu, A., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., 10060014 - Potgieter, Marthinus Steenkamp, 13161229 - Ngobeni, Mabedle Donald, and 20056950 - Bisschoff, Driaan
Subjects: 010504 meteorology & atmospheric sciences, Astrophysics::High Energy Astrophysical Phenomena, chemistry.chemical_element, Flux, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Galactic cosmic rays, 01 natural sciences, Galactic cosmic ray, Heliosphere, Cosmic ray detectors, 0103 physical sciences, 010303 astronomy & astrophysics, Helium, 0105 earth and related environmental sciences, Physics, Settore FIS/01, DARK MATTER, Astronomy and Astrophysics, COSMIC RAYS, Charged particle, ANTIPROTONS, chemistry, Space and Planetary Science, Physics::Space Physics, Cosmic ray detector
Abstract: Precise time-dependent measurements of the Z = 2 component in the cosmic radiation provide crucial information about the propagation of charged particles through the heliosphere. The PAMELA experiment, with its long flight duration (2006 June 15-2016 January 23) and the low energy threshold (80 MeV/n) is an ideal detector for cosmic-ray solar modulation studies. In this paper, the helium nuclei spectra measured by the PAMELA instrument from 2006 July to 2009 December over a Carrington rotation time basis are presented. A state-of-the-art three-dimensional model for cosmic-ray propagation inside the heliosphere was used to interpret the time-dependent measured fluxes. Proton-to-helium flux ratio time profiles at various rigidities are also presented in order to study any features that could result from the different masses and local interstellar spectra shapes.
Published: 2020
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41. Spectra of solar neutrons with energies of ~10–1000 MeV in the PAMELA experiment in the flare events of 2006–2015

Author: Alfonso Monaco, C. De Santis, R. Sparvoli, Roberto Bellotti, A. M. Galper, M. Merge, Yu. T. Yurkin, G. A. Bazilevskaya, A. N. Kvashnin, S. Bottai, V. Di Felice, Per Carlson, M. Bongi, F. Cafagna, G. Castellini, Sergey Koldashov, Alexey Leonov, Matteo Martucci, V. Bonvicini, V. V. Malakhov, Andrea Vacchi, E. A. Bogomolov, N. Zampa, D. Campana, L. Marcelli, M. Simon, Yuri Stozhkov, Mark Pearce, S. B. Ricciarini, O. Adriani, A. Bruno, Marco Casolino, Sergey Koldobskiy, A. V. Karelin, Marco Ricci, W. Menn, M. F. Runtso, G. C. Barbarino, Riccardo Munini, S. A. Voronov, P. Spillantini, P. Papini, Nicola Mori, A. G. Mayorov, E. Vannuccini, S. Y. Krutkov, G. Zampa, Beatrice Panico, G. Osteria, P. Picozza, G. I. Vasilyev, E. Mocchiutti, V. V. Mikhailov, Mirko Boezio, A. A. Kvashnin, Bogomolov, E. A., Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, R., Boezio, M., Bonvicini, V., Bongi, M., Bottai, S., Bruno, A., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Galper, A. M., De Santis, C., Di Felice, V., Zampa, G., Zampa, N., Casolino, M., Campana, D., Karelin, A. V., Carlson, P., Castellini, G., Cafagna, F., Kvashnin, A. A., Kvashnin, A. N., Koldashov, S. V., Koldobskiy, S. A., Krutkov, S. Y., Leonov, A. A., Mayorov, A. G., Malakhov, V. V., Martucci, M., Marcelli, L., Menn, W., Merge, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Panico, B., Papini, P., Picozza, P., Pearce, M., Ricci, M., Ricciarini, S. B., Runtso, M. F., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., and Yurkin, Y. T.
Subjects: Physics Solar flare, Solar neutrons, Space experiments: Neutrons, 010504 meteorology & atmospheric sciences, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Hadron, General Physics and Astronomy, Flux, Astrophysics, 01 natural sciences, Spectral line, law.invention, Nuclear physics, Physics and Astronomy (all), Space experiment, law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Neutron detection, Neutron, Nuclear Experiment, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, Settore FIS/01, Physics, Solar flare, Physics::Space Physics, Flare
Abstract: The first results from measuring the spectra of solar neutrons with energies of ~10-1000 MeV in the solar flares of 2006-2015 observed by the PAMELA international space experiment are presented. The PAMELA neutron detector with 3He counters and a moderator with an area of 0.18 m2 allows us to estimate the flux of solar neutrons during solar flares. Solar neutrons with energies of ~10-1000 MeV likely occurred in 21 out of the 24 analyzed flares of 2006-2015. © 2017, Allerton Press, Inc.
Published: 2017
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42. Galactic Cosmic Ray Electrons and Positrons over a Decade of Observations in the PAMELA Experiment

Author: M. Bongi, P. Spillantini, M. Simon, Alfonso Monaco, V. Di Felice, E. Mocchiutti, Matteo Martucci, G. A. Bazilevskaya, N. Zampa, G. Zampa, Beatrice Panico, D. Campana, Yu. I. Stozhkov, O. Adriani, V. Bonvicini, Alexey Leonov, V. V. Mikhailov, P. Carlson, V. V. Malakhov, S. V. Koldashov, Marco Ricci, A. V. Karelin, L. Marcelli, Marco Casolino, A. G. Mayorov, M. F. Runtso, Riccardo Munini, S. A. Voronov, Sergey Koldobskiy, Mark Pearce, S. B. Ricciarini, C. De Santis, A. Bruno, M. Merge, G. C. Barbarino, W. Menn, Yu. T. Yurkin, R. Sparvoli, P. Picozza, G. Osteria, F. Cafagna, P. Papini, E. A. Bogomolov, Mirko Boezio, E. Vannuccini, A. A. Kvashnin, Andrea Vacchi, G. Castellini, Roberto Bellotti, A. M. Galper, G. I. Vasilyev, Nicola Mori, A. N. Kvashnin, S. Yu. Krutkov, Mikhailov, V. V., Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, R., Bogomolov, E. A., Boezio, M., Bonvicini, V., Bongi, M., Bruno, A., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Galper, A. M., De Santis, C., Di Felice, V., Zampa, G., Zampa, N., Casolino, M., Campana, D., Karelin, A. V., Carlson, P., Castellini, G., Cafagna, F., Kvashnin, A. A., Kvashnin, A. N., Koldashov, S. V., Koldobskiy, S. A., Krutkov, S. Y., Leonov, A. A., Mayorov, A. G., Malakhov, V. V., Martucci, M., Marcelli, L., Menn, W., Merge, M., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Panico, B., Papini, P., Picozza, P., Pearce, M., Ricci, M., Ricciarini, S. B., Runtso, M. F., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., and Yurkin, Y. T.
Subjects: 010302 applied physics, Physics, Settore FIS/01, Earth's orbit, Range (particle radiation), Antiparticle, Spectrometer, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Astronomy, Cosmic ray, Electron, Cosmic-ray particles, 01 natural sciences, Cosmology, Magnetic spectrometers, Positrons, Positron, Physics::Space Physics, 0103 physical sciences, Satellite, Nuclear Experiment
Abstract: The PAMELA magnetic spectrometer was launched onboard the Resurs-DK1 satellite into a near-polar Earth orbit with an altitude of 350-600 km, in order to study fluxes of cosmic ray particles and antiparticles in the wide energy range of ~80 MeV to hundreds of GeV. The results from observations of electron and positron fluxes in 2006-2016 are presented.
Published: 2019
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43. Cosmic ray electrons and positrons over decade with the PAMELA experiment

Author: P. Spillantini, O. Adriani, W. Menn, F. Cafagna, V. Bonvicini, A. Bruno, S. Yu. Krutkov, Yu. I. Stozhkov, M. Bongi, M. Merge, L. Marcelli, Maria Teresa Ricci, A. Vacchi, V. V. Mikhailov, S. V. Koldashov, P. Carlson, S. O. Kleymenova, Sergey Koldobskiy, Riccardo Munini, G. C. Barbarino, G. A. Bazilevskaya, D. Campana, C. De Santis, André Monaco, Marco Casolino, G. Zampa, Beatrice Panico, M. Simon, P. Picozza, Yu. T. Yurkin, V. Di Felice, Mark Pearce, S. B. Ricciarini, N. Zampa, V. V. Malakhov, Mirko Boezio, P. Papini, Alexey Leonov, E. Vannuccini, G. I. Vasiliev, R. Sparvoli, Nicola Mori, Roberto Bellotti, A. N. Kvashnin, Matteo Martucci, A. M. Galper, E. Mocchiutti, A. V. Karelin, S. A. Voronov, G. Castellini, A. G. Mayorova, E. A. Bogomolov, G. Osteria, Mikhailov, V. V., Adriani, O., Barbarino, G., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bruno, A., Cafagna, F. S., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Santis, C., Di Felice, V., Galper, A. M., Karelin, A. V., Kleymenova, S. O., Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A. A., Malakhov, V. V., Marcelli, L., Martucci, M., Mayorova, A. G., Menn, W., Merge, M., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Papini, P., Panico, B., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasiliev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., and Zampa, N.
Subjects: Physics, History, Earth's orbit, Antiparticle, Settore FIS/04, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Cosmic ray, COSMIC RAYS, Electron, Computer Science Applications, Education, SOLAR MINIMA, Positron, Physics::Space Physics, Satellite, WIDE ENERGY RANGE
Abstract: The PAMELA experiment has measured cosmic ray particles and antiparticles fluxes at Earth orbit from June 2006 till January 2016 onboard the Resurs-DK1 satellite. Measurements were carried out during the solar minimum of 23 solar cycle with negative polarity A < 0 of heliospheric magnetic field till the beginning of 24 cycle with positive polarity A > 0. In this paper, the results of observations of electron and positron fluxes are presented in wide energy range from several hundreds MeVs till several TeVs These measurements provide important information to study cosmic ray sources and propagation in Galaxy and heliosphere.
Published: 2019

44. Force-field parameterization of the galactic cosmic ray spectrum: Validation for Forbush decreases

Author: R. Carbone, Sergey Koldobskiy, G. C. Barbarino, S. Y. Krutkov, V. Formato, A. V. Karelin, S. A. Voronov, G. A. Kovaltsov, N. Zampa, G. A. Bazilevskaya, E. A. Bogomolov, Laura Rossetto, V. Bonvicini, Yu. T. Yurkin, Y. I. Stozhkov, V. G. Zverev, P. Picozza, G. Osteria, P. Spillantini, Nicola Mori, M. Simon, N. De Simone, E. Mocchiutti, L. Marcelli, Alfonso Monaco, A. Vacchi, V. Di Felice, R. Sparvoli, M. Merge, A. Bruno, G. Zampa, Beatrice Panico, Marco Ricci, G. I. Vasilyev, Roberto Bellotti, A. M. Galper, C. De Santis, A. N. Kvashnin, Riccardo Munini, Mark Pearce, S. B. Ricciarini, Per Carlson, V. V. Malakhov, P. Papini, E. Vannuccini, Ilya Usoskin, V. V. Mikhailov, C. De Donato, F. Cafagna, Matteo Martucci, Sergey Koldashov, A. G. Mayorov, G. Castellini, Valentina Scotti, Alexey Leonov, F. Palma, Mirko Boezio, D. Campana, Ritabrata Sarkar, Marco Casolino, O. Adriani, S. Bottai, W. Menn, M. Bongi, C. Pizzolotto, G., Usoskin, G. A., Kovaltsov, O., Adriani, G. C., Barbarino, G. A., Bazilevskaya, R., Bellotti, M., Boezio, E. A., Bogomolov, M., Bongi, V., Bonvicini, S., Bottai, A., Bruno, F., Cafagna, D., Campana, R., Carbone, P., Carlson, M., Casolino, G., Castellini, C., De Donato, C., De Santi, N., De Simone, V., Di Felice, V., Formato, A. M., Galper, A. V., Karelin, S. V., Koldashov, S. A., Koldobskiy, S. Y., Krutkov, A. N., Kvashnin, A. A., Leonov, V., Malakhov, L., Marcelli, M., Martucci, A. G., Mayorov, W., Menn, M., Mergè, V. V., Mikhailov, E., Mocchiutti, A., Monaco, N., Mori, Munini, Riccardo, G., Osteria, F., Palma, B., Panico, P., Papini, M., Pearce, P., Picozza, C., Pizzolotto, M., Ricci, S. B., Ricciarini, L., Rossetto, R., Sarkar, V., Scotti, V. M., Simon, Sparvoli, P., Spillantini, Y. I., Stozhkov, P., Vacchi, E., Vannuccini, G. I., Vasilyev, S. A., Voronov, Y. T., Yurkin, G., Zampa, N., Zampa, V. G., Zverev, Usoskin, I. G., Kovaltsov, G. A., Adriani, O., Barbarino, Giancarlo, Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., De Donato, C., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mergé, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Palma, F., Panico, B., Papini, P., Pearce, M., Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, L., Sarkar, R., Scotti, V., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.
Subjects: Atmospheric Science, Astrophysics::High Energy Astrophysical Phenomena, Aerospace Engineering, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Cosmic rays, Forbush decrease, Heliosphere, Space and Planetary Science, Physics::Geophysics, Energy spectrum, Settore FIS/01, Physics, Spectrum (functional analysis), Astronomy, Astronomy and Astrophysics, Force field parameterization, Geophysics, Physics::Space Physics, General Earth and Planetary Sciences, Astrophysics::Earth and Planetary Astrophysics, Parametrization
Abstract: A useful parametrization of the energy spectrum of galactic cosmic rays (GCR) near Earth is offered by the so-called force-field model which describes the shape of the entire spectrum with a single parameter, the modulation potential. While the usefulness of the force-field approximation has been confirmed for regular periods of solar modulation, it was not tested explicitly for disturbed periods, when \GCR\ are locally modulated by strong interplanetary transients. Here we use direct measurements of protons and α -particles performed by the \PAMELA\ space-borne instrument during December 2006, including a major Forbush decrease, in order to directly test the validity of the force-field parameterization. We conclude that (1) The force-field parametrization works very well in describing the energy spectra of protons and α -particles directly measured by \PAMELA\ outside the Earths atmosphere; (2) The energy spectrum of \GCR\ can be well parameterized by the force-field model also during a strong Forbush decrease; (3) The estimate of the \GCR\ modulation parameter, obtained using data from the world-wide neutron monitor network, is in good agreement with the spectra directly measured by \PAMELA\ during the studied interval. This result is obtained on the basis of a single event analysis, more events need to be analyzed.
Published: 2015
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45. Secondary positrons and electrons in near-Earth space in the PAMELA experiment

Author: A. G. Mayorov, Alfonso Monaco, S. Y. Krutkov, D. Campana, Alexey Leonov, Matteo Martucci, M. Merge, Marco Casolino, Sergey Koldobskiy, Yu. T. Yurkin, G. C. Barbarino, M. Bongi, N. Zampa, V. Bonvicini, P. Picozza, G. Zampa, Beatrice Panico, L. Marcelli, Andrea Vacchi, E. Mocchiutti, V. Di Felice, A. Bruno, A. A. Kvashnin, M. F. Runtso, S. A. Voronov, Sergey Koldashov, M. Simon, Mirko Boezio, Riccardo Munini, A. V. Karelin, Yuri Stozhkov, V. V. Malakhov, O. Adriani, W. Menn, G. A. Bazilevskaya, G. Osteria, P. Spillantini, S. Bottai, G. Castellini, Roberto Bellotti, A. M. Galper, E. A. Bogomolov, Marco Ricci, A. N. Kvashnin, Mark Pearce, S. B. Ricciarini, P. Papini, E. Vannuccini, G. I. Vasilyev, Nicola Mori, C. De Santis, V. V. Mikhailov, R. Sparvoli, Per Carlson, F. Cafagna, Mikhailov, V. V., Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, R., Bogomolov, E. A., Boezio, M., Bonvicini, V., Bongi, M., Bottai, S., Bruno, A., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Galper, A. M., De Santis, C., Di Felice, V., Zampa, G., Zampa, N., Casolino, M., Campana, D., Karelin, A. V., Carlson, P., Castellini, G., Cafagna, F., Kvashnin, A. A., Kvashnin, A. N., Koldashov, S. V., Koldobskiy, S. A., Krutkov, S. Y., Leonov, A. A., Mayorov, A. G., Malakhov, V. V., Martucci, M., Marcelli, L., Menn, W., Merge, M., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Panico, B., Papini, P., Picozza, P., Pearce, M., Ricci, M., Ricciarini, S. B., Runtso, M. F., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., and Yurkin, Y. T.
Subjects: Settore FIS/01, Physics, PAMELA detector, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, Magnetosphere, Cosmic ray, Astrophysics, Electron, 01 natural sciences, law.invention, Atmosphere, Physics and Astronomy (all), symbols.namesake, Atmosphere of Earth, Positron, law, Van Allen radiation belt, Physics::Space Physics, 0103 physical sciences, symbols, Cosmology, Earth (planet), Earth atmosphere, Orbits, Positrons, Radiation belts Different mechanisms, Electron flux, Magnetic spectrometers, Near-earth spaces, Secondary particles, Trapped particle, Astrophysics::Earth and Planetary Astrophysics, 010306 general physics
Abstract: Fluxes of electrons and positrons with energies above ~100 MeV in the near-Earth space are measured with the PAMELA magnetic spectrometer aboard the Resurs DK-1 satellite launched on June 15, 2006, into a quasipolar orbit with an altitude of 350–600 km and an inclination of 70°. Calculating the trajectories of detected electrons and positrons in the magnetosphere of the Earth allows us to determine their origin and isolate particles produced during interaction between cosmic rays and the residual atmosphere. Spatial distributions of albedo, quasitrapped, and trapped (in the radiation belt) positrons and electrons are presented. The ratio of positron and electron fluxes suggests that the fluxes of trapped particles of the radiation belt and quasitrapped secondary particles have different mechanisms of formation.
Published: 2017
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46. Deuteron spectrum measurements under radiation belt with PAMELA instrument

Author: V. G. Zverev, Yu. T. Yurkin, V. Bonvicini, Y. I. Stozhkov, R. Carbone, Sergey Koldobskiy, V. Di Felice, G. C. Barbarino, O. Adriani, W. Menn, N. Zampa, G. A. Bazilevskaya, Matteo Martucci, S. A. Voronov, M. Simon, Riccardo Munini, L. Marcelli, P. Papini, Piero Spillantini, E. A. Bogomolov, A. Vacchi, A. Bruno, Laura Rossetto, Alfonso Monaco, V. V. Malakhov, A. G. Mayorov, M. Merge, Per Carlson, G. Castellini, A. A. Kvashnin, S. Y. Krutkov, N. De Simone, Mark Pearce, S. B. Ricciarini, Sergey Koldashov, R. Sparvoli, E. Mocchiutti, Alexey Leonov, P. Picozza, Marco Ricci, S. Bottai, F. Cafagna, C. Pizzolotto, I. A. Danilchenko, Ritabrata Sarkar, D. Campana, V. V. Mikhailov, E. Vannuccini, G. I. Vasilyev, G. Zampa, Beatrice Panico, Marco Casolino, Valerio Formato, G. Osteria, Nicola Mori, C. De Santis, C. De Donato, Valentina Scotti, F. Palma, Mirko Boezio, A. V. Karelin, Roberto Bellotti, A. M. Galper, A. N. Kvashnin, Massimo Bongi, Koldobskiy, S. A., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Danilchenko, I. A., De Donato, C., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. A., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mergè, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Palma, F., Panico, B., Papini, P., Pearce, M., Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, L., Sarkar, R., Scotti, V., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.
Subjects: Albedo, Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Cosmic ray, Radiation, 01 natural sciences, law.invention, Nuclear physics, symbols.namesake, law, Deuteron, PAMELA experiment, Radiation belt, 0103 physical sciences, Nuclear Experiment, 010303 astronomy & astrophysics, Settore FIS/01, Physics, Range (particle radiation), PAMELA detector, 010308 nuclear & particles physics, Van Allen radiation belt, symbols, Satellite, Nucleon
Abstract: In this work the results of data analysis of the deuteron albedo radiation obtained in the PAMELA experiment are presented. PAMELA is an international space experiment carried out on board of the satellite Resurs DK-1. The high precision detectors allow to register and identify cosmic ray particles in a wide energy range. The albedo deuteron spectrum in the energy range 70 - 600 MeV/nucleon has been measured. © 2015 Elsevier B.V..
Published: 2016
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47. Evidence of energy and charge sign dependence of the recovery time for the December 2006 Forbush event measured by the PAMELA experiment

Author: D. Campana, Ian G. Richardson, Sergey Koldashov, Marco Casolino, Yu. T. Yurkin, A. V. Karelin, S. Y. Krutkov, Mark Pearce, S. B. Ricciarini, S. A. Voronov, G. Castellini, Steven Stochaj, V. Di Felice, P. Papini, G. Zampa, Beatrice Panico, E. Vannuccini, Marco Ricci, Riccardo Munini, M. Bongi, A. G. Mayorov, Alexey Leonov, A. N. Kvashnin, P. Picozza, G. Osteria, Alfonso Monaco, R. Sparvoli, P. Spillantini, G. I. Vasilyev, O. Adriani, W. Menn, James M. Ryan, M. Merge, V. Bonvicini, Mirko Boezio, E. Mocchiutti, M. S. Potgieter, Y. I. Stozhkov, Nicola Mori, V. V. Mikhailov, L. Marcelli, Roberto Bellotti, C. De Santis, P. Carlson, A. M. Galper, A. Bruno, Sergey Koldobskiy, G. C. Barbarino, E. C. Christian, Matteo Martucci, N. Zampa, G. A. de Nolfo, G. A. Bazilevskaya, F. Cafagna, Andrea Vacchi, S. Bottai, V. V. Malakhov, M. Simon, Munini, R., Boezio, M., Bruno, A., Christian, E. C., Nolfo, G. A. D., Felice, V. D., Martucci, M., Merge, M., Richardson, I. G., Ryan, J. M., Stochaj, S., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bongi, M., Bonvicini, V., Bottai, S., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., Santis, C. D., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., 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., Osteria, G., Panico, B., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., and Potgieter, M. S.
Subjects: 010504 meteorology & atmospheric sciences, cosmic rays, Sun: coronal mass ejections (CMEs), Sun: heliosphere, Sun: particle emission, Astronomy and Astrophysics, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Astrophysics, 01 natural sciences, Physics - Space Physics, 0103 physical sciences, 010303 astronomy & astrophysics, cosmic ray, 0105 earth and related environmental sciences, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Settore FIS/04, Space Physics (physics.space-ph), Physics::Space Physics, Astrophysics - High Energy Astrophysical Phenomena, Event (particle physics), Sign (mathematics)
Abstract: New results on the short-term galactic cosmic-ray (GCR) intensity variation (Forbish decrease) in 2006 December measured by the PAMELA instrument are presented. Forbush decreases are sudden suppressions of the GCR intensities, which are associated with the passage of interplanetary transients such as shocks and interplanetary coronal mass ejections (ICMEs). Most of the past measurements of this phenomenon were carried out with groundbased detectors such as neutron monitors or muon telescopes. These techniques allow only the indirect detection of the overall GCR intensity over an integrated energy range. For the first time, thanks to the unique features of the PAMELA magnetic spectrometer, the Forbush decrease, commencing on 2006 December 14 and following a CME at the Sun on 2006 December 13, was studied in a wide rigidity range (0.4-20 GV) and for different species of GCRs detected directly in space. The daily averaged GCR proton intensity was used to investigate the rigidity dependence of the amplitude and the recovery time of the Forbush decrease. Additionally, for the first time, the temporal variations in the helium and electron intensities during a Forbush decrease were studied. Interestingly, the temporal evolutions of the helium and proton intensities during the Forbush decrease were found to be in good agreement, while the low rigidity electrons (
Published: 2018
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48. Proton Fluxes Measured by the PAMELA Experiment from the Minimum to the Maximum Solar Activity for Solar Cycle 24

Author: Yu. T. Yurkin, V. Di Felice, M. S. Potgieter, Mark Pearce, S. B. Ricciarini, V. Bonvicini, P. Spillantini, Y. I. Stozhkov, A. N. Kvashnin, Riccardo Munini, L. Marcelli, Andrea Vacchi, P. Papini, E. Vannuccini, A. Bruno, Roberto Bellotti, A. M. Galper, R. Sparvoli, O. Adriani, A. G. Mayorov, S. Y. Krutkov, V. V. Mikhailov, W. Menn, V. V. Malakhov, M. Simon, Sergey Koldobskiy, A. A. Leonov, M. Bongi, G. C. Barbarino, Marco Ricci, N. Zampa, N. Marcelli, Alfonso Monaco, G. A. Bazilevskaya, P. Picozza, A. V. Karelin, S. A. Voronov, Jan-Louis Raath, Mirko Boezio, M. Merge, Matteo Martucci, S. Bottai, E. Mocchiutti, G. Osteria, F. Cafagna, G. Castellini, Per Carlson, C. De Santis, G. I. Vasilyev, Nicola Mori, G. Zampa, Beatrice Panico, Sergey Koldashov, D. Campana, Marco Casolino, Martucci, M., Munini, R., Boezio, M., Felice, V. D., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., Santis, C. D., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobskiy, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Marcelli, L., Marcelli, N., Mayorov, A. G., Menn, W., Merge, M., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Osteria, G., Panico, B., Papini, P., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Potgieter, M. S., and Raath, J. L.
Subjects: Astroparticle physics, Physics, astroparticle physics, cosmic rays, Sun: heliosphere, Astronomy and Astrophysics, Space and Planetary Science, 010504 meteorology & atmospheric sciences, Proton, Astrophysics::High Energy Astrophysical Phenomena, Settore FIS/04, astroparticle physic, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Solar cycle 24, 01 natural sciences, 0103 physical sciences, Physics::Space Physics, 010303 astronomy & astrophysics, cosmic ray, Intensity (heat transfer), 0105 earth and related environmental sciences
Abstract: Precise measurements of the time-dependent intensity of the low-energy (
Published: 2018
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49. Trapped Positrons and Electrons in the Inner Radiation Belt According to Data of the PAMELA Experiment

Author: Sergey Koldobskiy, G. C. Barbarino, Sergey Koldashov, Mirko Boezio, Per Carlson, Alfonso Monaco, Massimo Bongi, S. Y. Krutkov, M. F. Runtso, F. Cafagna, Roberto Bellotti, Riccardo Munini, Yu. V. Mikhailova, G. A. Bazilevskaya, A. M. Galper, Yu. T. Yurkin, S. A. Voronov, M. Merge, G. I. Vasilyev, A. G. Mayorov, V. Bonvicini, R. Sparvoli, P. Papini, E. A. Bogomolov, Mark Pearce, D. Campana, A. A. Kvashnin, C. De Santis, O. Adriani, E. Mocchiutti, L. Marcelli, A. Vacchi, M. Simon, V. Di Felice, Matteo Martucci, G. Zampa, W. Menn, A. Bruno, V. V. Mikhailov, E. Vannuccini, B. Panico, S. Bottai, V. V. Malakhov, G. Osteria, N. Zampa, G. Castellini, Yuri Stozhkov, Nicola Mori, Alexey Leonov, P. Picozza, Marco Casolino, M. Ricci, A. V. Karelin, A. N. Kvashnin, P. Spillantini, S. B. Ricciarini, Mikhailov, V. V., Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, R., Bogomolov, E. A., Boezio, M., Bonvicini, V., Bongi, M., Bottai, S., Bruno, A., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Galper, A. M., De Santis, C., Di Felice, V., Zampa, G., Zampa, N., Casolino, M., Campana, D., Karelin, A. V., Carlson, P., Castellini, G., Cafagna, F., Kvashnin, A. A., Kvashnin, A. N., Koldashov, S. V., Koldobskiy, S. A., Krutkov, S. Y., Leonov, A. A., Mayorov, A. G., Malakhov, V. V., Martucci, M., Marcelli, L., Menn, W., Merge, M., Mikhailova, Y. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Panico, B., Papini, P., Picozza, P., Pearce, M., Ricci, M., Ricciarini, S. B., Runtso, M. F., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., and Yurkin, Y. T.
Subjects: Nuclear and High Energy Physics, Elliptic orbit, Astrophysics::High Energy Astrophysical Phenomena, Magnetosphere, Electron, 01 natural sciences, Nuclear physics, symbols.namesake, Atomic and Molecular Physics, 0103 physical sciences, INTERNATIONAL SPACE STATION, SPECTROMETER, 010306 general physics, Atomic and Molecular Physics, and Optics, Physics, Settore FIS/01, Range (particle radiation), Spectrometer, 010308 nuclear & particles physics, DARK MATTER, COSMIC RAYS, Earth's magnetic field, Van Allen radiation belt, Physics::Space Physics, symbols, Physics::Accelerator Physics, Satellite, and Optics
Abstract: Measurements of secondary-electron and secondary-positron fluxes below the geomagnetic cutoff in near-Earth space were performed by means of the PAMELA magnetic spectrometer installed on board the Resurs-DK1 satellite launched on June 15, 2006, in an elliptical orbit of inclination 70A degrees and altitude 350 to 600 km. This spectrometer permits measuring the fluxes of electrons and positrons over a wide energy range, as well as determining their spatial distributions to a precision of about 2A degrees. A calculation of particle trajectories in the geomagnetic field makes it possible to separate electrons and positrons originating from cosmic-ray interactions in the Earth's magnetosphere. The spatial distributions of quasitrapped, trapped, and short-lived albedo positrons and electrons of energy above 70 MeV in the radiation belt were analyzed. The ratio of the electron-to-positron fluxes and the energy spectra of the electrons and positrons in question are indicative of different productionmechanisms for stably trapped and quasitrapped secondary particles.
Published: 2018
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50. Sharp increasing of positron to electron fluxes ratio below 2 GV measured by the PAMELA

Author: Alfonso Monaco, A. N. Kvashnin, M. Merge, V. V. Mikhailov, P. Carlson, A. G. Mayorov, G. I. Vasiliev, R. Sparvoli, N. De Simone, G. Zampa, Beatrice Panico, M. Simon, N. Zampa, Sergey Koldashov, G. A. Bazilevskaya, Yu. T. Yurkin, C. De Santis, Yu. I. Stozhkov, V. V. Malakhov, S. Yu. Krutkov, P. Picozza, Roberto Bellotti, Mark Pearce, S. B. Ricciarini, F. Palma, A. M. Galper, P. Papini, Giuseppe Osteria, E. Vannuccini, Matteo Martucci, S. A. Koldobsky, E. Mocchiutti, F. Cafagna, A. V. Karelin, Mirko Boezio, D. Campana, S. Bottai, Maria Teresa Ricci, S. A. Voronov, Marco Casolino, C. De Donato, Nicola Mori, E. A. Bogomolov, Riccardo Munini, M. Bongi, P. Spillantini, O. Adriani, W. Menn, V. Di Felice, V. Bonvicini, G. C. Barbarino, G. Castellini, L. Marcelli, A. Vacchi, A. Bruno, Alexey Leonov, Mikhailov, V. V., Adriani, O., Barbarino, G., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Bottai, S., Bruno, A., Cafagna, F. S., Campana, D., Carlson, P., Casolino, M., Castellini, G., De Donato, C., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Karelin, A. V., Koldashov, S. V., Koldobsky, S., Krutkov, S. Y., Kvashnin, A. N., Leonov, A. A., Malakhov, V. V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Merge, M., Mocchiutti, E., Monaco, A., Mori, N., Munini, R., Osteria, G., Papini, P., Palma, F., Panico, B., Pearce, M., Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasiliev, G. I., Voronov, S. A., Yurkin, Y. T., Zampa, G., and Zampa, N.
Subjects: Physics, Settore FIS/01, History, Antiparticle, PAMELA detector, Spectrometer, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Polar orbit, Cosmic ray, Astrophysics, Electron, Cosmology, Electrons, Magnetic polarity, Orbits, Positrons, Computer Science Applications, Education, law.invention, Physics and Astronomy (all), Positron, law, Physics::Space Physics, Satellite, Astrophysics::Earth and Planetary Astrophysics
Abstract: Magnetic spectrometer PAMELA was launched onboard a satellite Resurs-DK1 into low-Earth polar orbit with altitude 350-600 km to study cosmic ray antiparticle fluxes in a wide energy range from ~ 100 MeV to hundreds GeV. This paper presents the results of observations of temporal variations of the positron and electron fluxes in the 2006-2015. The ratio of the positron and electron fluxes below 2 GV shows sharp increasing since 2014 due to changing of the polarity of the solar magnetic field.
Published: 2017

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86 results on '"Sparvoli, R"'

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