CERN Accelerating science

Article
Report number arXiv:0812.2373
Title Energy reconstruction of electromagnetic showers from $\pi^0$ decays with the ICARUS T600 Liquid Argon TPC
Author(s)

Ankowski, A. (Wroclaw U.) ; Antonello, M. (Gran Sasso) ; Aprili, P.G. (Gran Sasso) ; Arneodo, F. (Gran Sasso) ; Badertscher, A. (Zurich, ETH) ; Baibussinov, B. (INFN, Padua) ; Baldo-Ceolin, M. (Padua U. ; INFN, Padua) ; Battistoni, G. (INFN, Milan) ; Benetti, P. (Pavia U. ; INFN, Pavia) ; Brunetti, R. (INFN, Pavia) ; Bueno, A. (Granada U. ; CAFPE, Granada) ; Calligarich, E. (INFN, Pavia) ; Cambiaghi, M. (Pavia U. ; INFN, Pavia) ; Canci, N. (L'Aquila U. ; Gran Sasso) ; Carbonara, F. (INFN, Naples ; Naples U.) ; Carmona, M.C. (Granada U. ; CAFPE, Granada) ; Cavanna, F. (L'Aquila U. ; Gran Sasso) ; Cennini, P. (CERN) ; Centro, S. (Padua U. ; INFN, Padua) ; Cesana, A. (Milan Polytechnic ; INFN, Milan) ; Cieslik, K. (Cracow, INP ; INFN, Padua) ; Cline, D. (UCLA) ; Cocco, A.G. (Naples U.) ; Dabrowska, A. (Cracow, INP) ; Dolfini, R. (Pavia U. ; INFN, Pavia) ; Farnese, C. (Padua U. ; INFN, Padua) ; Fava, A. (Padua U. ; INFN, Padua) ; Ferrari, A. (CERN) ; Fiorillo, G. (INFN, Naples ; Naples U.) ; Galli, S. (L'Aquila U. ; Gran Sasso) ; Gallo, V. (Naples U.) ; Garcia-Gamez, D. (Granada U. ; CAFPE, Granada) ; Gibin, D. (Padua U. ; INFN, Padua) ; Gigli Berzolari, A. (Pavia U. ; INFN, Pavia) ; Graczyk, K. (Wroclaw U.) ; Guglielmi, A. (INFN, Padua) ; Holeczek, J. (Silesia U.) ; Kielczewska, D. (Warsaw U.) ; Kisiel, J. (Silesia U.) ; Kozlowski, T. (Warsaw, Inst. Nucl. Studies) ; Lagoda, J. (Warsaw, Inst. Nucl. Studies) ; Lantz, M. (INFN, Milan) ; Lozano, J. (Granada U. ; CAFPE, Granada) ; Mannocchi, G. (Frascati) ; Markiewicz, M. (Cracow, INP) ; Martinez de la Ossa, A. (Granada U. ; CAFPE, Granada) ; Mauri, F. (INFN, Pavia) ; Melgarejo, A.J. (Granada U. ; CAFPE, Granada) ; Menegolli, A. (INFN, Pavia) ; Meng, G. (INFN, Padua) ; Mijakowski, P. (Warsaw, Inst. Nucl. Studies) ; Montanari, C. (INFN, Pavia) ; Mortari, G.Piano (L'Aquila U. ; Gran Sasso) ; Muraro, S. (INFN, Milan) ; Navas, Sergio (Granada U. ; CAFPE, Granada) ; Otwinowski, S. (UCLA) ; Palamara, O. (Gran Sasso) ; Palczewski, T.J. (Warsaw, Inst. Nucl. Studies) ; Periale, L. (Frascati) ; Piazzoli, A. (Pavia U. ; INFN, Pavia) ; Picchi, P. (Frascati) ; Pietropaolo, F. (INFN, Padua) ; Polchlopek, W. (AGH-UST, Cracow) ; Posiadala, M. (Warsaw U.) ; Prata, M. (INFN, Pavia) ; Przewlocki, P. (Warsaw, Inst. Nucl. Studies) ; Rappoldi, A. (INFN, Pavia) ; Raselli, G.L. (INFN, Pavia) ; Rondio, E. (Warsaw, Inst. Nucl. Studies) ; Rossella, M. (INFN, Pavia) ; Rubbia, A. (Zurich, ETH) ; Rubbia, C. (Gran Sasso) ; Sala, P. (INFN, Milan) ; Scannicchio, N. (Pavia U. ; INFN, Pavia) ; Scaramelli, A. (INFN, Milan) ; Segreto, E. (Gran Sasso) ; Sergiampietri, F. (INFN, Pisa) ; Sobczyk, J. (Wroclaw U.) ; Stefan, D. (Cracow, INP) ; Stepaniak, J. (Warsaw, Inst. Nucl. Studies) ; Sulej, R. (Warsaw U. of Tech.) ; Szarska, M. (Cracow, INP) ; Szeglowski, T. (Silesia U.) ; Szeptycka, M. (Warsaw, Inst. Nucl. Studies) ; Terrani, M. (Milan Polytechnic ; INFN, Milan) ; Varanini, F. (Padua U.) ; Ventura, S. (INFN, Padua) ; Vignoli, C. (INFN, Pavia) ; Wachala, T. (Cracow, INP) ; Wang, H. (UCLA) ; Zalewska, A. (Cracow, INP)

Publication 2010
Imprint 15 Dec 2008
Number of pages 24
Note Comments: 24 pages, 16 figures
24 pages, 16 figures
In: Acta Phys. Pol. B 41 (2010) pp.103-125
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; ICARUS CNGS2
Abstract We discuss the ICARUS T600 detector capabilities in electromagnetic shower reconstruction through the analysis of a sample of 212 events, coming from the 2001 Pavia surface test run, of hadronic interactions leading to the production of $\pi^{0}$ mesons. Methods of shower energy and shower direction measurements were developed and the invariant mass of the photon pairs was reconstructed. The ($\gamma$,$\gamma$) invariant mass was found to be consistent with the value of the $\pi^0$ mass. The resolution of the reconstructed $\pi^0$ mass was found to be equal to 27.3%. An improved analysis, carried out in order to clean the full event sample from the events measured in the crowded environment, mostly due to the trigger conditions, gave a $\pi^0$ mass resolution of 16.1%, significantly better than the one evaluated for the full event sample. The trigger requirement of the coincidence of at least four photomultiplier signals favored the selection of events with a strong pile up of cosmic ray tracks and interactions. Hence a number of candidate $\pi^0$ events were heavily contaminated by other tracks and had to be rejected. Monte Carlo simulations of events with $\pi^0$ production in hadronic and neutrino interactions confirmed the validity of the shower energy and shower direction reconstruction methods applied to the real data.
Copyright/License arXiv nonexclusive-distrib. 1.0

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 记录创建於2008-12-15,最後更新在2024-04-09


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