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6 results on '"Maria Teresa Ricci"'

1. Time dependence of the helium flux measured by PAMELA

Author

Matteo Martucci, M. Simon, Sergey Koldobskiy, G. C. Barbarino, V. V. Mikhailov, P. Carlson, Alexey Leonov, D. Campana, Roberto Bellotti, A. M. Galper, S. Y. Krutkov, G. Zampa, Beatrice Panico, A. G. Mayorov, R. Sparvoli, Marco Casolino, A. N. Kvashnin, Riccardo Munini, O. Adriani, E. Mocchiutti, F. Cafagna, W. Menn, Nicola Mori, S. A. Voronov, Yu. T. Yurkin, G. Castellini, Massimo Bongi, E. A. Bogomolov, P. Picozza, G. I. Vasilyev, P. Spillantini, C. De Santis, V. V. Malakhov, Maria Teresa Ricci, S. V. Koldashov, Mark Pearce, S. B. Ricciarini, P. Papini, E. Vannuccini, L. Marcelli, A. Vacchi, M. Merge, V. Bonvicini, A. Bruno, Y. I. Stozhkov, André Monaco, A. V. Karelin, G. Osteria, N. Zampa, Mirko Boezio, and G. A. Bazilevskaya

Subjects
Physics, Proton, Astrophysics::High Energy Astrophysical Phenomena, Phase (waves), Flux, chemistry.chemical_element, Cosmic ray, Astrophysics, Solar cycle, chemistry, QUIET, Physics::Space Physics, Heliosphere, Helium
Abstract

The last solar cycle has presented a peculiarly long quiet phase with consequent minimum modulation conditions for cosmic rays. The proton and electron spectra were measured from July 2006 to December 2009 by PAMELA experiment, providing fundamental information about the transport and modulation of cosmic rays inside the heliosphere. These studies allow to obtain a more complete description of the cosmic radiation. In this picture the time dependence of the helium spectrum become very important to constrain parameters of the actual solar modulation model. The crucial point for this analysis is the selection of a dataset of helium events which ensure high statistics with a very low contamination. In this paper the definition of the selection criteria for helium events with data taken from July 2006 to June 2014 by PAMELA experiment is reported.

Published
2017

2. Measurements of electron and positron fluxes below the geomagnetic cutoff by the PAMELA magnetic spectrometer

Author

Sergey Koldashov, S. Bottai, E. Mocchiutti, G. A. Bazilevskaya, M. Simon, Yu. T. Yurkin, A. Bruno, Y. I. Stozhkov, Paolo Papini, P. Spillantini, G. Castellini, M. Merge, A. N. Kvashnin, Alexey Leonov, F. Cafagna, N. Zampa, Mark Pearce, S. B. Ricciarini, Sergey Koldobskiy, G. C. Barbarino, V. Di Felice, D. Campana, E. Vannuccini, R. Sparvoli, S. Y. Krutkov, Giovanni Bonvicini, V. V. Mikhailov, Marco Casolino, V. V. Malakhov, André Monaco, P. Carlson, P. Picozza, Maria Teresa Ricci, O. Adriani, G. Zampa, Beatrice Panico, L. Marcelli, A. Vacchi, S. A. Voronov, E. A. Bogomolov, Mirko Boezio, C. De Donato, Matteo Martucci, C. De Santis, A. G. Mayorov, Riccardo Munini, G. I. Vasilyev, Nicola Mori, Yu. V. Mikhailova, Roberto Bellotti, A. M. Galper, Massimo Bongi, A. V. Karelin, and G. Osteria

Subjects
Physics, Rigidity (electromagnetism), Earth's magnetic field, Positron, Spectrometer, Astrophysics::High Energy Astrophysical Phenomena, Electron, Trapping, Astrophysics, Secondary electrons, South Atlantic Anomaly
Abstract

We present a measurements of electron and positron fluxes below the geomagnetic cutoff rigidity in wide energy range from ~50 MeV to several GeVs by the PAMELA magnetic spectrometer. The instrument was launched on June 15th 2006 on-board the Resurs-DK satellite on low orbit with 70 degrees inclination and altitude between 350 and 600 km. Features of spatial distributions of secondary electrons and positrons in the near Earth space, including the South Atlantic Anomaly, were investigated in terms of lifetime and geographical origin. The separation in stably trapped , long lifetime quasi-trapped, and short lifetime albedo components was performed on base of back tracing procedure in geomagnetic field. A significant difference in relative abundance of positrons with respect to electrons is seen for the stable trapped and the quasi-trapped populations what pointing out on different trapping mechanism of those populations.

Published
2017

3. PAMELA'S MEASUREMENT OF GEOMAGNETIC CUTOFF VARIATIONS DURING SOLAR ENERGETIC PARTICLE EVENTS

Author

Roberto Bellotti, N. De Simone, V. Bonvicini, S. Bottai, A. M. Galper, André Monaco, Mirko Boezio, Y. I. Stozhkov, M. Simon, G. A. Bazilevskaya, Ritabrata Sarkar, G. I. Vasilyev, R. Carbone, Sergey Koldobskiy, Y. T. Yurkin, A. V. Karelin, V. G. Zverev, G. C. Barbarino, L. Marcelli, F. Palma, R. Sparvoli, A. Vacchi, Maria Teresa Ricci, A. Bruno, G. Osteria, V. Di Felice, M. Bongi, G. Zampa, Beatrice Panico, Valentina Scotti, C. De Donato, V. Formato, N. Zampa, Per Carlson, S. A. Voronov, Riccardo Munini, F. Cafagna, E. A. Bogomolov, M. Merge, Matteo Martucci, A. Leonov, O. Adriani, W. Menn, V. V. Mikhailov, G. Castellini, C. De Santis, Nicola Mori, S. V. Koldashov, V. V. Malakhov, Mark Pearce, S. B. Ricciarini, P. Papini, E. Vannuccini, P. Spillantini, A. G. Mayorov, S. Y. Krutkov, D. Campana, Marco Casolino, P. Picozza, A. N. Kvashnin, and E. Mocchiutti

Subjects
Physics, Nuclear physics, Earth's magnetic field, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Physics::Space Physics, Measure (physics), Particle, Cutoff, Satellite, Nuclear Experiment, Physics::Atmospheric and Oceanic Physics
Abstract

Data from the PAMELA satellite experiment were used to measure the geomagnetic cutoff for high-energy ( 80 MeV) protons during the solar particle events on 2006 December 13 and 14. The variations o ...

Published
2016

4. Nine Years of Cosmic Ray Investigation by the PAMELA Experiment

Author

Maria Teresa Ricci, G. A. Bazilevskaya, Mirko Boezio, P. Spillantini, G. Zampa, Beatrice Panico, M. Merge, V. V. Mikhailov, A. N. Kvashnin, E. Mocchiutti, Riccardo Munini, V. Di Felice, S. Y. Krutkov, R. Sparvoli, Y. T. Yurkin, M. Bongi, Mark Pearce, S. B. Ricciarini, V. Bonvicini, A. V. Karelin, F. Palma, A. Bruno, C. De Donato, G. I. Vasilyev, Y. I. Stozhkov, G. Osteria, F. Cafagna, V. V. Malakhov, P. Picozza, P. Papini, E. Vannuccini, G. Castellini, Sergey Koldashov, Roberto Bellotti, A. G. Mayorov, A. M. Galper, C. De Santis, Valentina Scotti, N. Zampa, O. Adriani, S. Bottai, W. Menn, André Monaco, Sergey Koldobskiy, D. Campana, G. C. Barbarino, Ritabrata Sarkar, L. Marcelli, A. Vacchi, V. Formato, Marco Casolino, S. A. Voronov, E. A. Bogomolov, A. Leonov, Matteo Martucci, Nicola Mori, Per Carlson, N. De Simone, and M. Simon

Subjects
On board, Physics, Feature (computer vision), Detector, Astronomy, Cosmic ray, Satellite
Abstract

The PAMELA cosmic ray detector was launched on June 15th of 2006 on board the Russian Resurs-DK1 satellite and during nine years of continuous data-taking it has ob- served very interesting feature ...

Published
2016

5. Solar modulation of galactic cosmic rays electrons and positrons over the 23rd solar minimum with the PAMELA experiment

Author

M. S. Potgieter, A. G. Mayorov, S. Bottai, E. Mocchiutti, M. Merge, G. Castellini, Sergey Koldobskiy, G. A. Bazilevskaya, G. C. Barbarino, N. Zampa, V. V. Mikhailov, Mirko Boezio, C. De Santis, G. Zampa, Beatrice Panico, Maria Teresa Ricci, V. Bonvicini, Ritabrata Sarkar, C. De Donato, L. Marcelli, A. Vacchi, S. Y. Krutkov, Matteo Martucci, A. Bruno, Y. I. Stozhkov, V. Formato, A. M. Galper, A. Leonov, A. V. Karelin, S. V. Koldashov, André Monaco, S. A. Voronov, Nicola Mori, F. Palma, V. V. Malakhov, E. A. Bogomolov, V. Di Felice, M. Simon, P. Picozza, F. Cafagna, Etienne Vos, P. Spillantini, G. Osteria, Riccardo Munini, D. Campana, G. I. Vasilyev, N. De Simone, Marco Casolino, Valentina Scotti, R. Sparvoli, Per Carlson, Y. T. Yurkin, Roberto Bellotti, O. Adriani, W. Menn, M. Bongi, Mark Pearce, S. B. Ricciarini, P. Papini, E. Vannuccini, and A. N. Kvashnin

Subjects
Solar minimum, Physics, Positron, PAMELA detector, Modulation, law, Astronomy, Cosmic ray, Electron, Astrophysics, law.invention
Abstract

The satellite-borne PAMELA experiment has been continuously collecting data since 15th June 2006, when it was launched from the Baikonur cosmodrome to detect the charged component of cosmic rays ov ...

Published
2016

6. Latest results from the Pamela experiment

Author

S. A. Voronov, S. V. Borisov, Petter Hofverberg, S. Y. Krutkov, S. B. Ricciarini, E. A. Bogomolov, E. Mocchiutti, L. Consiglio, V. Malvezzi, A. M. Galper, Mark Pearce, S. Bottai, P. Picozza, V. G. Zverev, Nicola Mori, P. Papini, E. Vannuccini, P. Spillantini, S. V. Koldashov, V. Bonvicini, C. De Santis, A. Bruno, Maria Teresa Ricci, Y. I. Stozhkov, G. A. Bazilevskaya, N. De Simone, Roberta Sparvoli, M. P. De Pascale, F. Cafagna, A. N. Kvashnin, O. Adriani, R. Carbone, V. Di Felice, Lorenzo Bonechi, G. C. Barbarino, G. Zampa, G. Castellini, G. I. Vasilyev, W. Menn, D. Campana, V. V. Mikhailov, M. Simon, A. A. Leonov, William Gillard, Marco Casolino, N. Zampa, Y. T. Yurkin, Mirko Boezio, L. Marcelli, M. Bongi, G. Osteria, A. Vacchi, Roberto Bellotti, L. A. Grishantseva, Giovanna Jerse, Per Carlson, and N. N. Nikonov

Subjects
Nuclear physics, Physics, Satellite
Abstract

In this paper we present the latest results of the Pamela satellite experiment, focusing in particular on the p/p and the e +/(e+ +e-) ratios.

Published
2010

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