Acknowledgments We would like to thank the authors of FEWZ for the fruitful discussions, cooperation, and crosschecks in performing the theoretical calculations for our analysis. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at  CERN  and at other  CMS institutes  for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: the  Austrian Federal Ministry of Science and Research and the Austrian Science Fund ; the  Belgian Fonds de la Recherche Scientifique , and  Fonds voor Wetenschappelijk Onderzoek ; the  Brazilian Funding Agencies (CNPq, CAPES ,  FAPERJ , and  FAPESP) ; the  Bulgarian Ministry of Education and Science ; CERN; the  Chinese Academy of Sciences, Ministry of Science and Technology , and  National Natural Science Foundation of China ; the  Colombian Funding Agency (COLCIENCIAS) ; the  Croatian Ministry of Science, Education and Sport ; the  Research Promotion Foundation , Cyprus; the  Ministry of Education and Research, Recurrent  financing contract  SF0690030s09  and  European Regional Development Fund , Estonia; the  Academy of Finland ,  Finnish Ministry of Education and Culture , and  Helsinki Institute of Physics ; the  Institut National de Physique Nucléaire et de Physique des Particules / CNRS , and  Commissariat à l' Énergie Atomique et aux Énergies Alternatives / CEA , France; the  Bundesministerium f ür Bildung und Forschung, Deutsche Forschungsgemeinschaft , and  Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany ; the  General Secretariat for Research and Technology, Greece ; the  National Scientific Research Foundation , and  National Innovation Office, Hungary ; the  Department of Atomic Energy  and the  Department of Science and Technology, India ; the  Institute for Studies in Theoretical Physics and Mathematics, Iran ; the  Science Foundation, Ireland ; the  Istituto Nazionale di Fisica Nucleare, Italy ; the  Korean Ministry of Education, Science and Technology  and the  World Class University program of NRF, Republic of Korea ; the  Lithuanian Academy of Sciences ; the  Mexican Funding Agencies (CINVESTAV, CONACYT ,  SEP , and  UASLP-FAI) ; the  Ministry of Business, Innovation and Employment, New Zealand ; the  Pakistan Atomic Energy Commission ; the  Ministry of Science and Higher Education  and the  National Science Centre, Poland ; the Fundacão para a Ciência e a Tecnologia, Portugal; JINR, Dubna; the  Ministry of Education and Science of the Russian Federation , the  Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences , and the  Russian Foundation for Basic Research ; the  Ministry of Education, Science and Technological Development of Serbia ; the  Secretaría de Estado de Investigaci ón, Desarrollo e Innovaci ón and Programa  Consolider-Ingenio 2010, Spain; the  Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH ,  Canton Zurich , and SER); the  National Science Council, Taipei ; the  Thailand Center of Excellence in Physics , the  Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research and the National Science and Technology Development Agency of Thailand ; the  Scientific and Technical Research Council of Turkey , and  Turkish Atomic Energy Authority ; the  Science and Technology Facilities Council , UK; the  US Department of Energy , and the  US National Science Foundation.