Constraints on particle acceleration in SS433/W50 from MAGIC and H.E.S.S. observations

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Ziegler (70) N. \.Zywucka (72) ((1) ETH Zurich CH-8093 Zurich Switzerland (2) Universit\'a di Udine INFN Trieste I-33100 Udine Italy (3) INAF National Institute for Astrophysics I-00136 Rome Italy (4) Universit\'a di Padova INFN I-35131 Padova (5) Croatian MAGIC Consortium Rudjer Boskovic Institute University of Rijeka University of Split - FESB University of Zagreb - FER University of Osijek Croatia (6) Saha Institute of Nuclear Physics 1/AF Bidhannagar Salt Lake Sector-1 Kolkata 700064 India (7) Max-Planck-Institut f\"ur Physik D-80805 M\"unchen Germany (8) Universidad Complutense E-28040 Madrid Spain (9) Inst. de Astrof\'isica de Canarias E-38200 La Laguna Tenerife (10) Universidad de La Laguna Dpto. Astrof\'isica E-38206 La Laguna (11) University of L\'od\'z PL-90236 Lodz Poland (12) Deutsches Elektronen-Synchrotron (DESY) D-15738 Zeuthen Germany (13) Institut de Fisica d'Altes Energies (IFAE) The Barcelona Institute of Science Technology Campus UAB 08193 Bellaterra (Barcelona) (14) Universit\'a di Siena INFN Pisa I-53100 Siena (15) Institute for Space Sciences (CSIC/IEEC) E-08193 Barcelona (16) Technische Universit\"at Dortmund D-44221 Dortmund (17) Universit\"at W\"urzburg D-97074 W\"urzburg (18) Finnish MAGIC Consortium Tuorla Observatory University of Turku Astronomy Division University of Oulu Finland (19) Unitat de F\'isica de les Radiacions Departament de F\'isica CERES-IEEC Universitat Aut\'onoma de Barcelona E-08193 Bellaterra (20) Universitat de Barcelona ICC IEEC-UB E-08028 Barcelona (21) Japanese MAGIC Consortium ICRR The University of Tokyo Department of Physics Hakubi Center Kyoto University Tokai University The University of Tokushima Japan (22) Inst. for Nucl. Research Nucl. Energy BG-1784 Sofia Bulgaria (23) Universit\'a di Pisa I-56126 Pisa (24) ICREA Institute for Space Sciences (CSIC/IEEC) E-08193 Barcelona (25) also at the Department of Physics of Kyoto University (26) now at Centro Brasileiro de Pesquisas F\'isicas (CBPF/MCTI) R. Dr.Xavier Sigaud 150 - Urca Rio de Janeiro - RJ 22290-180 Brazil (27) now at NASA Goddard Space Flight Center Greenbelt MD 20771 USA (28) Department of Physics Department of Astronomy University of Maryland College Park MD 20742 (29) Institut f\"ur Physik Humboldt-Universit\"at zu Berlin Newtonstr. 15 D 12489 Berlin (30) also at University of Trieste (31) also at Japanese MAGIC Consortium (32) now at Finnish Centre for Astronomy with ESO (FINCA) Turku (33) also at INAF-Trieste Dept. of Physics \& Astronomy University of Bologna (34) now at Laboratoire AIM (UMR 7158 CEA/DSM CNRS Universit\'e Paris Diderot) Irfu / Service d'Astrophysique CEA-Saclay 91191 Gif-sur-Yvette Cedex France (35) now at INAF/IAPS-Roma I-00133 Roma Italy Centre for Space Research North-West University Potchefstroom 2520 South Africa (36) Universit\"at Hamburg Institut f\"ur Experimentalphysik Luruper Chaussee 149 D 22761 Hamburg (37) Max-Planck-Institut f\"ur Kernphysik P.O. 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