Search

Your search keyword '"Grishantseva, L. A."' showing total 20 results
Start Over Author "Grishantseva, L. A." Publisher kth, fysik
20 results on '"Grishantseva, L. A."'

1. Time Dependence Of The Proton Flux Measured By Pamela During The 2006 July-2009 December 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, Per, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, Sarkar, R., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Wu, Juan, Zampa, G., Zampa, N., Zverev, V. G., Potgieter, M. S., Vos, E. E., 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, Per, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, Sarkar, R., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Wu, Juan, Zampa, G., Zampa, N., Zverev, V. G., Potgieter, M. S., and Vos, E. E.

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 2006 July to 2009 December 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., QC 20130408

Published
2013
Full Text
View/download PDF

2. Precise cosmic rays measurements with PAMELA

Author

Bruno, A., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Cafagna, F., Campana, D., Carbone, R., Carlson, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, 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., Bruno, A., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Cafagna, F., Campana, D., Carbone, R., Carlson, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, 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.

Abstract

The PAMELA experiment was launched on board the Resurs-DK1 satellite on June 15th 2006. The apparatus was designed to conduct precision studies of charged cosmic radiation over a wide energy range, from tens of MeV up to several hundred GeV, with unprecedented statistics. In five years of continuous data taking in space, PAMELA accurately measured the energy spectra of cosmic ray antiprotons and positrons, as well as protons, electrons and light nuclei, sometimes providing data in unexplored energetic regions. These important results have shed new light in several astrophysical fields like: an indirect search for Dark Matter, a search for cosmological antimatter (anti-Helium), and the validation of acceleration, transport and secondary production models of cosmic rays in the Galaxy. Some of the most important items of Solar and Magnetospheric physics were also investigated. Here we present the most recent results obtained by the PAMELA experiment., QC 20140911

Published
2013
Full Text
View/download PDF

3. The PAMELA space experiment

Author

Menn, W., 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, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Nikonov, N., Osteria, G., Palma, F., Papini, P., Pearce, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Sarkar, R., Rossetto, Laura, 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, Juan, Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., Menn, W., 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, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Nikonov, N., Osteria, G., Palma, F., Papini, P., Pearce, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Sarkar, R., Rossetto, Laura, 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, Juan, Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.

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 is comprised of 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 to 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 (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. Moreover, PAMELA is investigating phenomena connected with solar and earth physics. After 4 years of operation in flight, PAMELA is now delivering coherent results about spectra and chemical composition of the charged cosmic radiation, allowing scenarios of production and propagation of cosmic rays to be fully established and understood., QC 20130215

Published
2013
Full Text
View/download PDF

4. Measurements of cosmic-ray proton and helium spectra with the PAMELA calorimeter

Author

Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S. V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, Grishantseva, L. A., Jerse, G., Karelin, A. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A. A., Malakhov, V. V., Marcelli, L., Mayorov, A. G., Koldashov, S. V., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Osteria, G., Palma, F., Papini, P., Pearce, Mark, Picozza, P., Pizzolotto, C., Ricciarini, S., Rossetto, Laura, Sarkar, R., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Wu, Juan, Zampa, G., Zampa, N., Zverev, V. G., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S. V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, Grishantseva, L. A., Jerse, G., Karelin, A. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A. A., Malakhov, V. V., Marcelli, L., Mayorov, A. G., Koldashov, S. V., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Osteria, G., Palma, F., Papini, P., Pearce, Mark, Picozza, P., Pizzolotto, C., Ricciarini, S., Rossetto, Laura, Sarkar, R., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Yurkin, Y. T., Wu, Juan, Zampa, G., Zampa, N., and Zverev, V. G.

Abstract

We present a new measurement of the cosmic ray proton and helium spectra by the PAMELA experiment performed using the "thin" (in terms of nuclei interactions) sampling electromagnetic calorimeter. The described method, optimized by using Monte Carlo simulation, beam test and experimental data, allows the spectra to be measured up to 10 TeV, thus extending the PAMELA observational range based on the magnetic spectrometer measurement., QC 20130215

Published
2013
Full Text
View/download PDF

5. Measurement of the flux of primary cosmic ray antiprotons with energies of 60 MeV to 350 GeV in the PAMELA experiment

Author

Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonvicini, V., Bongi, M., Bonechi, L., Borisov, S. V., Bottai, S., Bruno, A., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Wu, Juan, Galper, A. M., Grishantseva, L. A., Danilchenko, I. A., Gillard, William, Jerse, G., Zampa, G., Zampa, N., Zverev, V. G., Casolino, M., Campana, D., Carbone, R., Karelin, A. V., Carlson, Per, Castellini, G., Cafagna, F., Kvashnin, A. N., Koldashov, S. V., Koldobskiy, S. A., Krutkov, S. Y., Consiglio, L., Leonov, A. A., Mayorov, A. G., Malakhov, V. V., Malvezzi, W., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Nikonov, N. N., Osteria, G., Palma, F., Papini, P., Pizzolotto, C., de Pascale, M. P., Picozza, P., Pearce, Mark, Ricci, M., Ricciarini, S., Rossetto, Laura, Runtso, M. F., De Santis, C., Sarkar, R., Simon, M., De Simone, N., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Di Felice, V., Yurkin, Y. T., Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonvicini, V., Bongi, M., Bonechi, L., Borisov, S. V., Bottai, S., Bruno, A., Vacchi, A., Vannuccini, E., Vasilyev, G. I., Voronov, S. A., Wu, Juan, Galper, A. M., Grishantseva, L. A., Danilchenko, I. A., Gillard, William, Jerse, G., Zampa, G., Zampa, N., Zverev, V. G., Casolino, M., Campana, D., Carbone, R., Karelin, A. V., Carlson, Per, Castellini, G., Cafagna, F., Kvashnin, A. N., Koldashov, S. V., Koldobskiy, S. A., Krutkov, S. Y., Consiglio, L., Leonov, A. A., Mayorov, A. G., Malakhov, V. V., Malvezzi, W., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Nikonov, N. N., Osteria, G., Palma, F., Papini, P., Pizzolotto, C., de Pascale, M. P., Picozza, P., Pearce, Mark, Ricci, M., Ricciarini, S., Rossetto, Laura, Runtso, M. F., De Santis, C., Sarkar, R., Simon, M., De Simone, N., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Di Felice, V., and Yurkin, Y. T.

Abstract

It is interesting to measure the antiproton galactic component in cosmic rays in order to study the mechanisms by which particles and antiparticles are generated and propagate in the Galaxy and to search for new sources of, e.g., annihilation or decay of dark matter hypothetical particles. The antiproton spectrum and the ratio of the fluxes of primary cosmic ray antiprotons to protons with energies of 60 MeV to 350 GeV found from the data obtained from June 2006 to January 2010 in the PAMELA experiment are presented. The usage of the advanced data processing method based on the data classification mathematical model made it possible to increase statistics and analyze the region of higher energies than in the earlier works., QC 20130306

Published
2013
Full Text
View/download PDF

6. Anisotropy studies in the cosmic ray proton flux with the PAMELA experiment

Author

Giaccari, U., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bianco, A., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Grishantseva, L., Jerse, G., Karelin, A. V., Kheymits, M. D., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Malvezzi, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, Riccardo, Nikonov, N., Osteria, G., Palma, F., Papini, P., Pearce, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, Sarkar, R., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Wu, Juan, Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., Giaccari, U., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Bianco, A., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Formato, V., Galper, A. M., Grishantseva, L., Jerse, G., Karelin, A. V., Kheymits, M. D., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malakhov, V., Malvezzi, V., Marcelli, L., Martucci, M., Mayorov, A. G., Menn, W., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Munini, Riccardo, Nikonov, N., Osteria, G., Palma, F., Papini, P., Pearce, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, Sarkar, R., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Wu, Juan, Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.

Abstract

Using data taken by the Pamela experiment during 5 years of operation we studied the anisotropy in the arrival direction distribution of cosmic ray protons with rigidity above 40 GV. In this survey we used two different and independent techniques to investigate the large and medium anisotropy patterns in the proton spectrum. With both methods the observed distribution of arrival directions is consistent with the isotropic expectation and no significant evidence of strong anisotropies has been observed., QC 20131118

Published
2013
Full Text
View/download PDF

7. The PAMELA space mission for antimatter and dark matter searches in space

Author

Boezio, M., Carlson, Per, Casolino, M., Castellini, G., Consiglio, L., de Pascale, M. P., de Santis, C., de Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, Sarkar, R., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Wu, Juan, Zampa, G., Zampa, N., Zverev, V. G., Boezio, M., Carlson, Per, Casolino, M., Castellini, G., Consiglio, L., de Pascale, M. P., de Santis, C., de Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, Sarkar, R., Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Wu, Juan, Zampa, G., Zampa, N., and Zverev, V. G.

Abstract

The PAMELA satellite-borne experiment has presented new results on cosmic-ray antiparticles that can be interpreted in terms of DM annihilation or pulsar contribution. The instrument was launched from the Baikonur cosmodrome and it has been collecting data since July 2006. The combination of a permanent magnet silicon strip spectrometer and a silicon-tungsten imaging calorimeter allows precision studies of the charged cosmic radiation to be conducted over a wide energy range with high statistics. The primary scientific goal is the measurement of the antiproton and positron energy spectrum in order to search for exotic sources. 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. This talk illustrates the most recent scientific results obtained by the PAMELA experiment., QC 20130114

Published
2012
Full Text
View/download PDF

8. 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, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, 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., 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, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, 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.

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., QC 20150423

Published
2011
Full Text
View/download PDF

9. Trapped protons in SAA measured 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, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, 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., 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, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, 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, Mark, Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S. B., Rossetto, Laura, 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.

Abstract

An accurate measurement of under cutoff proton fluxes in the energy range 60 MeV ÷ 3 GeV has been performed by the PAMELA satellite-borne experiment. Thanks to the high identification performances and to the semipolar and elliptic satellite orbit, PAMELA is able to provide information about spectra and composition of particles in different regions of the magnetosphere. Here we present the measurement of the geomagnetically trapped protons from the inner radiation belt (SAA). The fluxes as a function of equatorial pitch angle and McIlwain L-shell are reported., QC 20150422

Published
2011
Full Text
View/download PDF

10. A statistical procedure for the identification of positrons in the PAMELA experiment

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, Per, 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., Hofverberg, Petter, Jerse, G., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Nikonov, N., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., 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, Juan, Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., Marinucci, D., 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, Per, 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., Hofverberg, Petter, Jerse, G., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Monaco, A., Mori, N., Nikonov, N., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., 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, Juan, Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., and Marinucci, D.

Abstract

The PAMELA satellite experiment has measured the cosmic-ray positron fraction between 1.5 GeV and 100 GeV. The need to reliably discriminate between the positron signal and proton background has required the development of an ad hoc analysis procedure. In this paper, a method for positron identification is described and its stability and capability to yield a correct background estimate is shown. The analysis includes new experimental data, the application of three different fitting techniques for the background sample and an estimate of systematic uncertainties due to possible inaccuracies in the background selection. The new experimental results confirm both solar modulation effects on cosmic-rays with low rigidities and an anomalous positron abundance above 10 GeV. (c) 2010 Elsevier B.V. All rights reserved., QC 20111108

Published
2010
Full Text
View/download PDF

11. Cosmic rays studies with the PAMELA space experiment

Author

Sparvoli, R., 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, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Grishantseva, L., Hofverberg, Petter, Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., Sparvoli, R., 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, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Grishantseva, L., Hofverberg, Petter, Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., 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.

Abstract

The instrument PAMELA, in orbit since June 15th, 2006 on board the Russian satellite Resurs DK1, is delivering to ground 16 Gigabytes of data per day. The apparatus is designed to study charged particles in the cosmic radiation, with a particular focus on antiparticles as a possible signature of dark matter annihilation in the galactic halo; the combination of a magnetic spectrometer and different detectors-indeed-allows antiparticles to be reliably identified from a large background of other charged particles. New results on the antiproton-to-proton and positron-to-all-electron ratios over a wide energy range (1-100GeV) have been recently released by the PAMELA Collaboration, and will be summarized in this paper. While the antiproton-to-proton ratio does not show particular differences from an antiparticle standard secondary production, in the positron-to-all-electron ratio an enhancement is clearly seen at energies above 10GeV. Possible interpretations of this effect will be briefly discussed., Not duplicate with DiVA 751861.QC 20211117

Published
2010

12. Cosmic rays studies with the PAMELA space experiment

Author

Sparvoli, R., 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, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Grishantseva, L., Hofverberg, Petter, Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. G., Sparvoli, R., 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, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Grishantseva, L., Hofverberg, Petter, Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., 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.

Abstract

The instrument PAMELA, in orbit since June 15th, 2006 on board the Russian satellite Resurs DK1, is delivering to ground 16 Gigabytes of data per day. The apparatus is designed to study charged particles in the cosmic radiation, with a particular focus on antiparticles as a possible signature of dark matter annihilation in the galactic halo; the combination of a magnetic spectrometer and different detectors-indeed- allows antiparticles to be reliably identified from a large background of other charged particles. New results on the antiproton-to-proton and positron-to-all-electron ratios over a wide energy range (1-100GeV) have been recently released by the PAMELA Collaboration, and will be summarized in this paper. While the antiproton-to-proton ratio does not show particular differences from an antiparticle standard secondary production, in the positron-to-all-electron ratio an enhancement is clearly seen at energies above 10 GeV. Possible interpretations of this effect will be briefly discussed., QC 20141002

Published
2009
Full Text
View/download PDF

13. Two years of flight of the Pamela experiment : Results and perspectives

Author

Casolino, M., De Simone, N., Bongue, D., De Pascale, M. P., Felice, V. D., Marcelli, L., Minori, M., Picozza, P., Sparvoli, R., Castellini, G., Adriani, O., Bonechi, L., Bongi, M., Bottai, S., Papini, P., Ricciarini, S., Spillantini, P., Taddei, E., Vannuccini, E., Barbarino, G., Campana, D., Carbone, R., De Rosa, G., Osteria, G., Boezio, M., Bonvicini, V., Mocchiutti, E., Vacchi, A., Zampa, G., Zampa, N., Bruno, A., Cafagna, F. S., Ricci, M., Hofverberg, Petter, Pearce, Mark, Carlson, Per, Bogomolov, E., Krutkov, S.Yu., Nikonov, N. N., Menn, W., Simon, M., Galper, A. M., Grishantseva, L., Koldashov, S., Leonov, A., Mikhailov, V. V., Voronov, S. A., Yurkin, Y. T., Zverev, V. G., Bazilevskaya, G. A., Kvashnin, A. N., Maksumov, O., Stozhkov, Y., Casolino, M., De Simone, N., Bongue, D., De Pascale, M. P., Felice, V. D., Marcelli, L., Minori, M., Picozza, P., Sparvoli, R., Castellini, G., Adriani, O., Bonechi, L., Bongi, M., Bottai, S., Papini, P., Ricciarini, S., Spillantini, P., Taddei, E., Vannuccini, E., Barbarino, G., Campana, D., Carbone, R., De Rosa, G., Osteria, G., Boezio, M., Bonvicini, V., Mocchiutti, E., Vacchi, A., Zampa, G., Zampa, N., Bruno, A., Cafagna, F. S., Ricci, M., Hofverberg, Petter, Pearce, Mark, Carlson, Per, Bogomolov, E., Krutkov, S.Yu., Nikonov, N. N., Menn, W., Simon, M., Galper, A. M., Grishantseva, L., Koldashov, S., Leonov, A., Mikhailov, V. V., Voronov, S. A., Yurkin, Y. T., Zverev, V. G., Bazilevskaya, G. A., Kvashnin, A. N., Maksumov, O., and Stozhkov, Y.

Abstract

PAMELA is a satellite borne experiment designed to study with great accuracy cosmic rays of galactic, solar, and trapped nature in a wide energy range (protons: 80 MeV-700 GeV, electrons 50 MeV-400 GeV). Main objective is the study of the antimatter component: antiprotons (80 MeV-190 GeV), positrons (50 MeV-270 GeV) and search for antinuclei with a precision of the order of 10~8). The experiment, housed on board the Russian Resurs-DKl satellite, was launched on June, 15th 2006 in a 350 x 600 km orbit with an inclination of 70 degrees. In this work we describe the scientific objectives and the performance of PAMELA in its first two years of operation. Data on protons of trapped, secondary and galactic nature - as well as measurements of the December 13th 2006 Solar Particle Event - are also provided., QC 20141007

Published
2009
Full Text
View/download PDF

14. Precision studies of cosmic rays with the PAMELA satellite 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, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, Grishantseva, L., Hofverberg, Petter, Jerse, G., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mori, N., Nikonov, N. N., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Rossetto, Laura, Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Wu, Juan, Yurkin, Y. T., Zampa, G., Zampa, N., Zverev, V. 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, Per, Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., De Santis, C., De Simone, N., Di Felice, V., Galper, A. M., Gillard, William, Grishantseva, L., Hofverberg, Petter, Jerse, G., Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mori, N., Nikonov, N. N., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Rossetto, Laura, Simon, M., Sparvoli, R., Spillantini, P., Stozhkov, Y. I., Vacchi, A., Vannuccini, E., Vasilyev, G., Voronov, S. A., Wu, Juan, Yurkin, Y. T., Zampa, G., Zampa, N., and Zverev, V. G.

Abstract

The PAMELA satellite experiment was launched into low earth orbit on June 15th 2006. The combination of a permanent magnet silicon strip spectrometer, and a silicon-tungsten imaging calorimeter allows precision studies of the charged cosmic radiation to be conducted over a wide energy range (100 MeV - 200 GeV). A primary scientific goal is to search for dark matter particle annihilations by measuring the energy spectra of cosmic ray antiparticles. Latest results from the PAMELA experiment will be reviewed with a particular focus on cosmic ray antiprotons and positrons. The status of PAMELA measurements for other cosmic ray species will also be reviewed., QC 20120309

Published
2009
Full Text
View/download PDF

15. Secondary electron and positron fluxes in the near-Earth space observed in the ARINA and PAMELA experiments

Author

Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, T. R., Bzheumikhova, M. A., Bogomolov, E. A., Boezio, V. M., Bonvicini, V., Bongi, M., Bonechi, L., Bottai, S., Bruno, A., Vacchi, A., Vannuccini, E., Vasiliev, G. V., Voronov, S. A., Galper, A. M., Grishantseva, L. A., Zampa, G., Zampa, N., Zverev, V. G., Casolino, M., Campana, T. D., Carlson, Per, Castellini, G., Cafagna, F., Kvashnin, A. N., Koldashov, S. V., Krutkov, S.Yu., Leonov, A. A., Malakhov, V. V., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Orsi, Silvio, Osteria, G., Papini, P., De Pascale, M. P., Picozza, T. P., Pearce, Mark, De Rosa, G., Ricci, M., Ricciarini, S. B., Simon, M., De Simone, N., Sparvoli, R., Spillantini, P., Stozhkov, Yu.I., Taddei, E., Felice, V., Fedele, D., Hofverberg, Petter, Yurkin, Yu.T., Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, T. R., Bzheumikhova, M. A., Bogomolov, E. A., Boezio, V. M., Bonvicini, V., Bongi, M., Bonechi, L., Bottai, S., Bruno, A., Vacchi, A., Vannuccini, E., Vasiliev, G. V., Voronov, S. A., Galper, A. M., Grishantseva, L. A., Zampa, G., Zampa, N., Zverev, V. G., Casolino, M., Campana, T. D., Carlson, Per, Castellini, G., Cafagna, F., Kvashnin, A. N., Koldashov, S. V., Krutkov, S.Yu., Leonov, A. A., Malakhov, V. V., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Orsi, Silvio, Osteria, G., Papini, P., De Pascale, M. P., Picozza, T. P., Pearce, Mark, De Rosa, G., Ricci, M., Ricciarini, S. B., Simon, M., De Simone, N., Sparvoli, R., Spillantini, P., Stozhkov, Yu.I., Taddei, E., Felice, V., Fedele, D., Hofverberg, Petter, and Yurkin, Yu.T.

Abstract

Secondary electron and positron fluxes in the energy range from 3 MeV to 7 GeV were measured with the ARINA and PAMELA spectrometers onboard the Resurs-DK satellite launched on June 15, 2006 into an elliptical orbit with an inclination of 70.4° and an altitude of 350-600 km. It is shown that positrons dominate over electrons by a factor of up to 4-5 in the geomagnetic equator region (L < 1.2 and B > 0.25)., QC 20141006

Published
2009
Full Text
View/download PDF

16. Positrons and electrons in primary cosmic rays as measured in the PAMELA experiment

Author

Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S. V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., Pascale, M. P., Rosa, G., Fedele, D., Felice, V., Galper, A. M., Grishantseva, L. A., Hofverberg, Petter, Leonov, A. A., Koldashov, S. V., Krutkov, S.Yu., Kvashnin, A. N., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Minori, M., Mocchiutti, E., Orsi, Silvio, Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Simone, N., Sparvoli, R., Spillantini, P., Stozhkov, Yu.I., Taddei, E., Vacchi, A., Vannuccini, E., Vasil'ev, G. V., Voronov, S. A., Yurkin, Yu.T., Zampa, G., Zampa, N., Zverev, V. G., Adriani, O., Bazilevskaya, G. A., Barbarino, G. C., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S. V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, P., Casolino, M., Castellini, G., Pascale, M. P., Rosa, G., Fedele, D., Felice, V., Galper, A. M., Grishantseva, L. A., Hofverberg, Petter, Leonov, A. A., Koldashov, S. V., Krutkov, S.Yu., Kvashnin, A. N., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Minori, M., Mocchiutti, E., Orsi, Silvio, Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Simon, M., Simone, N., Sparvoli, R., Spillantini, P., Stozhkov, Yu.I., Taddei, E., Vacchi, A., Vannuccini, E., Vasil'ev, G. V., Voronov, S. A., Yurkin, Yu.T., Zampa, G., Zampa, N., and Zverev, V. G.

Abstract

The PAMELA experiment is being carried out on board the Russian satellite Resurs DK1 placed in the near-earth near-polar orbit on June 15, 2006. The apparatus comprising a silicon-strip magnetic spectrometer and an electromagnetic calorimeter allows measurement of electron and positron fluxes in cosmic rays in a wide energy interval from ∼100 MeV to hundreds of GeV. The high-energy electron and positron separation technique is discussed and the data on positron-to-electron ratio in primary cosmic rays up to E ≃ 10 GeV from the 2006 - 2007 measurements are reported in this work., QC 20141007

Published
2009
Full Text
View/download PDF

17. 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, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Simone, N., Di Felice, V., Galper, A. M., Gillard, W., Grishantseva, L., Hofverberg, Petter, 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, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Rossetto, Laura, 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., Zverev, V. 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, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Simone, N., Di Felice, V., Galper, A. M., Gillard, W., Grishantseva, L., Hofverberg, Petter, 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, Mark, Picozza, P., Ricci, M., Ricciarini, S. B., Rossetto, Laura, 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.

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., QC 20150421

Published
2009

18. Comparison of models and measurements of protons of trapped and secondary origin with PAMELA experiment

Author

De Simone, N., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellottik, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Bottai, S., Brunok, A., Cafagna, F., Campana, D., Carlson, Per, Casolino, M., Castellini, G., De Santis, C., De Pascale, M. P., De Rosa, G., Di Felice, V., Galper, A. M., Grishantseva, L., Hofverberg, Petter, Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Nikonov, N., Osteria, G., Papini, P., Peroni, M., Pearce, Mark, 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., Zverev, V. G., De Simone, N., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellottik, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Bottai, S., Brunok, A., Cafagna, F., Campana, D., Carlson, Per, Casolino, M., Castellini, G., De Santis, C., De Pascale, M. P., De Rosa, G., Di Felice, V., Galper, A. M., Grishantseva, L., Hofverberg, Petter, Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Nikonov, N., Osteria, G., Papini, P., Peroni, M., Pearce, Mark, 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.

Abstract

PAMELA is a satellite borne experiment designed to study with great accuracy cosmic rays of galactic, solar, and trapped nature in a wide energy range (protons: 80 MeV-700 GeV, electrons 50 MeV-400 GeV). Main objective is the study of the antimatter component: Antiprotons (80 MeV-190 GeV), positrons (50 MeV-270 GeV) and search for antinuclei with a precision of the order of 10-8). The experiment, housed on board the Russian Resurs- DK1 satellite, was launched on June, 15th 2006 in a 350x600 km orbit with an inclination of 70 degrees. In this work we present the measurement of galactic and reentrant albedo proton spectra in the energy range between 100 MeV and 300 GeV. The galactic protons refer to the period 2006-2008, showing evidence of Solar modulation effects even during the solar minimum., QC 20150420

Published
2009

19. Measurement of the He nuclei flux at high energies with the PAMELA experiment

Author

Mori, N., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellottik, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Bottai, S., Brunok, A., Cafagna, F., Campana, D., Carlson, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Rosa, G., De Simone, N., Di Felice, V., Galper, A. M., Grishantseva, L., Hofverberg, Petter, Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Osteria, G., Papini, P., Pearce, Mark, 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., Zverev, V. G., Mori, N., Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellottik, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Bottai, S., Brunok, A., Cafagna, F., Campana, D., Carlson, Per, Casolino, M., Castellini, G., De Pascale, M. P., De Rosa, G., De Simone, N., Di Felice, V., Galper, A. M., Grishantseva, L., Hofverberg, Petter, Koldashov, S. V., Krutkov, S. Y., Kvashnin, A. N., Leonov, A., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Osteria, G., Papini, P., Pearce, Mark, 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.

Abstract

The PAMELA experiment is a satellitebased apparatus launched in June 2006. Its core instrument is a magnetic spectrometer, whose high spatial resolution (∼ 3 micron) provides the discriminative power to separate particles and antiparticles. It can measure the momentum and the energy-loss rate of an incident particles, thus allowing to identify higher charges (up to Z ≃ 5). The main goal for PAMELA is a precise measurement of the light antimatter component in cosmic rays (antiprotons, positrons), with unprecedented statistics and over a largely unexplored energy range. The instrument characteristics and the large statistics allow to precisely measure absolute fluxes for various cosmic-ray species up to high energy. Here the He flux analysis above some GeV is presented., QC 20150421

Published
2009

20. Sub-cutoff electrons and positrons in the near Earth space

Author

Grishantseva, L. A., Adriani, O., Barbarino, G., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S. V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, Per, Casolino, M., Castellini, G., De Pascale, M. P., Di Felice, V., Galper, A. M., Hofverberg, Petter, Leonov, A. A., Koldashov, S. V., Krutkov, S.Yu., Kvashnin, A. N., Malakhov, V. V., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S., Simon, M., De Simone, N., Sparvoli, R., Spillantini, P., Stozhkov, Yu.I., Vacchi, A., Vannuccini, E., Vasiliev, G. V., Voronov, S. A., Yurkin, Yu.T., Zampa, G., Zampa, N., Zverev, V. G., Grishantseva, L. A., Adriani, O., Barbarino, G., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S. V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carlson, Per, Casolino, M., Castellini, G., De Pascale, M. P., Di Felice, V., Galper, A. M., Hofverberg, Petter, Leonov, A. A., Koldashov, S. V., Krutkov, S.Yu., Kvashnin, A. N., Malakhov, V. V., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Osteria, G., Papini, P., Pearce, Mark, Picozza, P., Ricci, M., Ricciarini, S., Simon, M., De Simone, N., Sparvoli, R., Spillantini, P., Stozhkov, Yu.I., Vacchi, A., Vannuccini, E., Vasiliev, G. V., Voronov, S. A., Yurkin, Yu.T., Zampa, G., Zampa, N., and Zverev, V. G.

Abstract

Precise spectra of electron and positron fluxes in energy range from 80 MeV to several GeV below the geomagnetic cutoff rigidity were obtained using data of the PAMELA spectrometer. It was launched on June 15th 2006 onboard the Resurs-DK satellite on an elliptical orbit (the inclination is 70°, the altitude is 350-610 km). The work presents measurements of secondary lepton fluxes produced in interactions of cosmic ray protons with the atmosphere in the near Earth space (out of the South Atlantic Anomaly). Latitudinal dependences are discussed. These results are particularly interesting for more accurate definition of electron/positron flux model in the Earth magnetosphere., QC 20150421

Published
2009

Catalog

Books, media, physical & digital resources
See catalog results