ABOUT SEPARATION OF HADRON AND ELECTROMAGNETIC CASCADES IN THE PAMELA CALORIMETER

Author:

,STOZHKOV YURI I.1,BASILI A.2,BENCARDINO R.2,CASOLINO M.2,DE PASCALE M. P.2,FURANO G.2,MENICUCCI A.2,MINORI M.2,MORSELLI A.2,PICOZZA P.2,SPARVOLI R.2,WISCHNEWSKI R.2,BAKALDIN A.3,GALPER A. M.3,KOLDASHOV S. V.3,KOROTKOV M. G.3,MIKHAILOV V. V.3,VORONOV S. A.3,YURKIN Y. T.3,ADRIANI O.4,BONECHI L.4,BONGI M.4,PAPINI P.4,RICCIARINI S. B.4,SPILLANTINI P.4,STRAULINO S.4,TACCETTI F.4,VANNUCCINI E.4,CASTELLINI G.5,BOEZIO M.6,BONVICINI M.6,MOCCHIUTTI E.6,SCHIAVON P.6,VACCHI A.6,ZAMPA G.6,ZAMPA N.6,CARLSON P.7,LUND J.7,LUNDQUIST J.7,ORSI S.7,PEARCE M.7,BARBARINO G. C.8,CAMPANA D.8,OSTERIA G.8,ROSSI G.8,RUSSO S.8,BOSCHERINI M.9,MENNH W.9,SIMONH M.9,BONGIORNO L.10,RICCI M.10,AMBRIOLA M.11,BELLOTTI R.11,CAFAGNA F.11,CIRCELLA M.11,DE MARZO C.11,GIGLIETTO N.11,MIRIZZI N.11,ROMITA M.11,SPINELLI P.11,BOGOMOLOV E.12,KRUTKOV S.12,VASILJEV G.12,BAZILEVSKAYA G. A.13,KVASHNIN A. N.13,LOGACHEV V. I.13,MAKHMUTOV V. S.13,MAKSUMOV O. S.13,STOZHKOV YU. I.13,MITCHELL J. W.14,STREITMATTER R. E.14,STOCHAJ S. J.15

Affiliation:

1. P. N. Lebedev Physical Institute, RAS, Leninsky Prospekt 53, Moscow, RU-119991, Russia

2. INFN, Structure of Rome II and Physics Department of University of Rome "Tor Vergata", Via della Ricerca Scientica 1, Rome, I-00133, Italy

3. Moscow Engineering and Physics Institute, Kashirskoe Shosse 31, Moscow, RU-115409, Russia

4. INFN, Structure of Florence and Physics Department of University of Florence, Viale Sansone 1, Sesto Fiorentino, Florence, I-50019, Italy

5. Istituto di Fisica Applicata "Nello Carrara", Via Panciatichi 64, Florence, I-50127, Italy

6. INFN, Structure of Trieste and Physics Department of University of Trieste, Via A. Valerio 2, Trieste, I-34147, Italy

7. Royal Institute of Technology (KTH), Albanova University Centre, Stockholm, SE-10691, Sweden

8. INFN, Structure of Naples and Physics Department of University of Naples "Federico II", Via Cintia, Naples, I-80126, Italy

9. Universitat Siegen, Siegen, D-57068, Germany

10. INFN, Laboratori Nazionali di Frascati, Via Enrico Fermi 40, Frascati, I-00044, Italy

11. INFN, Structure of Bari and Physics Department of University of Bari, Via Amendola 173, Bari, I-70126, Italy

12. A. F. Ioffe Physical-Technical Institute, Polytekhnicheskaya 26, St. Petersburg, RU-194021, Russia

13. P. N. Lebedev Physical Institute, Leninsky Prospekt 53, Moscow, RU-119991, Russia

14. NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA

15. New Mexico State University, Las Cruces, NM 88003-8001, USA

Abstract

Results of calibration of the PAMELA instrument at the CERN facilities are discussed. In September, 2003, the calibration of the Neutron Detector together with the Calorimeter was performed with the CERN beams of electrons and protons with energies of 20 – 180 GeV. The implementation of the Neutron Detector increases a rejection factor of hadrons from electrons about ten times. The results of calibration are in agreement with calculations.

Publisher

World Scientific Pub Co Pte Lt

Subject

Astronomy and Astrophysics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics

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