In this work we will describe the search for particles with anomalous Charge / Mass (Z/A) ratio with Pamela experiment. Pamela is a multipurpose device composed of a permanent magnet spectrometer to provide particle charge, rigidity (with 10% resolution) and incoming angle information. A series of six segmented scintillator counters arranged at its extremities provides redundant Timeof- Flight and charge information. Lepton/hadron identification is performed by a Silicon-Tungsten calorimeter and a Neutron detector placed at the bottom of the device. The redundant nature of the detector makes it particularly suited to search for heavy mass, light charge particles. These kind of events would look as a slow particle (with low speed from the Time of Flight) and high rigidity in the tracker. We will discuss the analysis technique and future perspectives.
Search for anomalous Z/A particles in cosmic radiation with Pamela experiment / Casolino, M.; De Santis, C.; De Simone, N.; Guescini, F.; Nikonov, N.; Picozza, P.; Adriani, O.; Barbarino, G.C.; Bazilevskaya, G.A.; Bellottik, R.; Boezio, M.; Bogomolov, E.A.; Bonechi, L.; Bongi, M.; Bonvicini, V.; Bottai, S.; Bruno, A.; Cafagna, F.; Campana, D.; Carlson, P.; Castellini, G.; De Pascale, N.; De Rosa, G.; Di Felice, V.; Galper, A.M.; Grishantseva, L.; Hofverberg, P.; Koldashov, S.V.; Krutkov, S.Y.; Kvashnin, A.N.; Leonov, A.; Marcelli, L.; Menn, W.; Mikhailov, V.V.; Mocchiutti, E.; Osteria, G.; Papini, P.; Peroni, M.; Pearce, M.; 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.. - ELETTRONICO. - (2009), pp. 1-4. (Intervento presentato al convegno 31st International Cosmic Ray Conference, ICRC 2009 tenutosi a Lodz, pol nel 2009).
Search for anomalous Z/A particles in cosmic radiation with Pamela experiment
ADRIANI, OSCAR;BONGI, MASSIMO;
2009
Abstract
In this work we will describe the search for particles with anomalous Charge / Mass (Z/A) ratio with Pamela experiment. Pamela is a multipurpose device composed of a permanent magnet spectrometer to provide particle charge, rigidity (with 10% resolution) and incoming angle information. A series of six segmented scintillator counters arranged at its extremities provides redundant Timeof- Flight and charge information. Lepton/hadron identification is performed by a Silicon-Tungsten calorimeter and a Neutron detector placed at the bottom of the device. The redundant nature of the detector makes it particularly suited to search for heavy mass, light charge particles. These kind of events would look as a slow particle (with low speed from the Time of Flight) and high rigidity in the tracker. We will discuss the analysis technique and future perspectives.
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