\newif\ifFundingTHANKS
\FundingTHANKSfalse
% use \FundingTHANKStrue to put funding in 	hanks{} statements.
% this does not work because of the limited number of symbols
% available for footnotes with the PRL style.
% Solution used here: add notes a1...a11 to the acknowledgements
\affiliation{I. Physikalisches Institut der RWTH, Aachen, Germany}
\affiliation{University of Michigan, Ann Arbor, USA}
\affiliation{LAPP, Université de Savoie, CNRS/IN2P3, Annecy-le-Vieux, France}
\affiliation{Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium\ifFundingTHANKS\relax\else\relax$^{a1}$\fi}
\ifFundingTHANKS\thanks{Supported by FNRS-FWO-Vlaanderen, IISN-IIKW and IWT and by Interuniversity Attraction Poles Programme, Belgian Science Policy}\fi
\affiliation{Lawrence Berkeley National Laboratory, Berkeley, USA}
\affiliation{School of Physics and Astronomy, University of Birmingham, Birmingham, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi}
\ifFundingTHANKS\thanks{Supported by the UK Science and Technology Facilities Council, and formerly by the UK Particle Physics and Astronomy Research Council}\fi
\affiliation{Horia Hulubei National Institute for R\&D in Physics and Nuclear Engineering (IFIN-HH) , Bucharest, Romania\ifFundingTHANKS\relax\else\relax$^{a3}$\fi}
\ifFundingTHANKS\thanks{Supported by the Romanian National Authority for Scientific Research under the contract PN 09370101}\fi
\affiliation{Institut für Physik, TU Dortmund, Dortmund, Germany\ifFundingTHANKS\relax\else\relax$^{a4}$\fi}
\ifFundingTHANKS\thanks{Supported by the Bundesministerium für Bildung und Forschung, FRG, under contract numbers 05H09GUF, 05H09VHC, 05H09VHF, 05H16PEA}\fi
\affiliation{Joint Institute for Nuclear Research, Dubna, Russia}
\affiliation{CERN, Geneva, Switzerland}
\affiliation{Irfu/SPP, CE Saclay, Gif-sur-Yvette, France}
\affiliation{II. Physikalisches Institut, Universität Göttingen, Göttingen, Germany}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany}
\affiliation{Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany\ifFundingTHANKS\relax\else\relax$^{a4}$\fi}
\ifFundingTHANKS\thanks{Supported by the Bundesministerium für Bildung und Forschung, FRG, under contract numbers 05H09GUF, 05H09VHC, 05H09VHF, 05H16PEA}\fi
\affiliation{Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany\ifFundingTHANKS\relax\else\relax$^{a4}$\fi}
\ifFundingTHANKS\thanks{Supported by the Bundesministerium für Bildung und Forschung, FRG, under contract numbers 05H09GUF, 05H09VHC, 05H09VHF, 05H16PEA}\fi
\affiliation{Rice University, Houston, USA}
\affiliation{Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland\ifFundingTHANKS\relax\else\relax$^{a5}$\fi}
\ifFundingTHANKS\thanks{Partially Supported by Polish Ministry of Science and Higher Education, grant DPN/N168/DESY/2009}\fi
\affiliation{Department of Physics, University of Lancaster, Lancaster, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi}
\ifFundingTHANKS\thanks{Supported by the UK Science and Technology Facilities Council, and formerly by the UK Particle Physics and Astronomy Research Council}\fi
\affiliation{Department of Physics, University of Liverpool, Liverpool, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi}
\ifFundingTHANKS\thanks{Supported by the UK Science and Technology Facilities Council, and formerly by the UK Particle Physics and Astronomy Research Council}\fi
\affiliation{School of Physics and Astronomy, Queen Mary, University of London, London, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi}
\ifFundingTHANKS\thanks{Supported by the UK Science and Technology Facilities Council, and formerly by the UK Particle Physics and Astronomy Research Council}\fi
\affiliation{Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, Marseille, France}
\affiliation{Institute for Theoretical and Experimental Physics, Moscow, Russia\ifFundingTHANKS\relax\else\relax$^{a6}$\fi}
\ifFundingTHANKS\thanks{Russian Foundation for Basic Research (RFBR), grant no 1329.2008.2 and Rosatom}\fi
\affiliation{Lebedev Physical Institute, Moscow, Russia}
\affiliation{Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia}
\affiliation{Institute for Information Transmission Problems RAS, Moscow, Russia\ifFundingTHANKS\relax\else\relax$^{a7}$\fi}
\ifFundingTHANKS\thanks{Russian Foundation for Sciences, project no 14-50-00150}\fi
\affiliation{Max-Planck-Institut für Physik, München, Germany}
\affiliation{Oak Ridge National Laboratory, Oak Ridge, USA}
\affiliation{Joint Laboratory of Optics, Palack\`y University, Olomouc, Czech Republic}
\affiliation{IJCLab, Université Paris-Saclay, CNRS/IN2P3, Orsay, France}
\affiliation{Department of Physics, Oxford University, Oxford, UK}
\affiliation{STFC, Rutherford Appleton Laboratory, Didcot, Oxfordshire, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi}
\ifFundingTHANKS\thanks{Supported by the UK Science and Technology Facilities Council, and formerly by the UK Particle Physics and Astronomy Research Council}\fi
\affiliation{LLR, Ecole Polytechnique, CNRS/IN2P3, Palaiseau, France}
\affiliation{Faculty of Science, University of Montenegro, Podgorica, Montenegro\ifFundingTHANKS\relax\else\relax$^{a8}$\fi}
\ifFundingTHANKS\thanks{Partially Supported by Ministry of Science of Montenegro, no. 05-1/3-3352}\fi
\affiliation{Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi}
\ifFundingTHANKS\thanks{Supported by the Ministry of Education of the Czech Republic under the project INGO-LG14033}\fi
\affiliation{Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi}
\ifFundingTHANKS\thanks{Supported by the Ministry of Education of the Czech Republic under the project INGO-LG14033}\fi
\affiliation{University of California, Riverside, USA}
\affiliation{Dipartimento di Fisica Università di Roma Tre and INFN Roma~3, Roma, Italy}
\affiliation{Shandong University, Shandong, P.R.China}
\affiliation{Stony Brook University, Stony Brook, USA}
\affiliation{Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia}
\affiliation{Ulaanbaatar University, Ulaanbaatar, Mongolia}
\affiliation{Brookhaven National Laboratory, Upton, USA}
\affiliation{Université Claude Bernard Lyon 1, CNRS/IN2P3, Villeurbanne, France}
\affiliation{Paul Scherrer Institut, Villigen, Switzerland}
\affiliation{Department of Physics and Astronomy, Purdue University, West Lafayette, USA}
\affiliation{Fachbereich C, Universität Wuppertal, Wuppertal, Germany}
\affiliation{Yerevan Physics Institute, Yerevan, Armenia}
\affiliation{Departamento de Fisica Aplicada, CINVESTAV, Mérida, Yucat\'an, México\ifFundingTHANKS\relax\else\relax$^{a10}$\fi}
\ifFundingTHANKS\thanks{Supported by CONACYT, México, grant 48778-F}\fi
\affiliation{Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany}
\affiliation{Institut für Teilchenphysik, ETH, Zürich, Switzerland\ifFundingTHANKS\relax\else\relax$^{a11}$\fi}
\ifFundingTHANKS\thanks{Supported by the Swiss National Science Foundation}\fi
\affiliation{Physik-Institut der Universität Zürich, Zürich, Switzerland\ifFundingTHANKS\relax\else\relax$^{a11}$\fi}
\ifFundingTHANKS\thanks{Supported by the Swiss National Science Foundation}\fi
\newcommand{\fundingack}{%
\ifFundingTHANKS
elax\else\par$^{a1}$ Supported by FNRS-FWO-Vlaanderen, IISN-IIKW and IWT and by Interuniversity Attraction Poles Programme, Belgian Science Policy\par$^{a2}$ Supported by the UK Science and Technology Facilities Council, and formerly by the UK Particle Physics and Astronomy Research Council\par$^{a3}$ Supported by the Romanian National Authority for Scientific Research under the contract PN 09370101\par$^{a4}$ Supported by the Bundesministerium für Bildung und Forschung, FRG, under contract numbers 05H09GUF, 05H09VHC, 05H09VHF, 05H16PEA\par$^{a5}$ Partially Supported by Polish Ministry of Science and Higher Education, grant DPN/N168/DESY/2009\par$^{a6}$ Russian Foundation for Basic Research (RFBR), grant no 1329.2008.2 and Rosatom\par$^{a7}$ Russian Foundation for Sciences, project no 14-50-00150\par$^{a8}$ Partially Supported by Ministry of Science of Montenegro, no. 05-1/3-3352\par$^{a9}$ Supported by the Ministry of Education of the Czech Republic under the project INGO-LG14033\par$^{a10}$ Supported by CONACYT, México, grant 48778-F\par$^{a11}$ Supported by the Swiss National Science Foundation\fi}
\author{V. Andreev}
\affiliation{Lebedev Physical Institute, Moscow, Russia} 
\author{M. Arratia}
\affiliation{University of California, Riverside, USA} 
\author{A. Baghdasaryan}
\affiliation{Yerevan Physics Institute, Yerevan, Armenia} 
\author{A. Baty}
\affiliation{Rice University, Houston, USA} 
\author{K. Begzsuren}
\affiliation{Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia} 
\author{A. Belousov}
\thanks{Deceased} \affiliation{Lebedev Physical Institute, Moscow, Russia}
\author{A. Bolz}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{V. Boudry}
\affiliation{LLR, Ecole Polytechnique, CNRS/IN2P3, Palaiseau, France} 
\author{G. Brandt}
\affiliation{II. Physikalisches Institut, Universität Göttingen, Göttingen, Germany} 
\author{D. Britzger}
\affiliation{Max-Planck-Institut für Physik, München, Germany} 
\author{A. Buniatyan}
\affiliation{School of Physics and Astronomy, University of Birmingham, Birmingham, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{L. Bystritskaya}
\affiliation{Institute for Theoretical and Experimental Physics, Moscow, Russia\ifFundingTHANKS\relax\else\relax$^{a6}$\fi} 
\author{A.J. Campbell}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{K.B. Cantun Avila}
\affiliation{Departamento de Fisica Aplicada, CINVESTAV, Mérida, Yucat\'an, México\ifFundingTHANKS\relax\else\relax$^{a10}$\fi} 
\author{K. Cerny}
\affiliation{Joint Laboratory of Optics, Palack\`y University, Olomouc, Czech Republic} 
\author{V. Chekelian}
\affiliation{Max-Planck-Institut für Physik, München, Germany} 
\author{Z. Chen}
\affiliation{Shandong University, Shandong, P.R.China} 
\author{J.G. Contreras}
\affiliation{Departamento de Fisica Aplicada, CINVESTAV, Mérida, Yucat\'an, México\ifFundingTHANKS\relax\else\relax$^{a10}$\fi} 
\author{L. Cunqueiro Mendez}
\affiliation{Oak Ridge National Laboratory, Oak Ridge, USA} 
\author{J. Cvach}
\affiliation{Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi} 
\author{J.B. Dainton}
\affiliation{Department of Physics, University of Liverpool, Liverpool, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{K. Daum}
\affiliation{Fachbereich C, Universität Wuppertal, Wuppertal, Germany} 
\author{A. Deshpande}
\affiliation{Stony Brook University, Stony Brook, USA} 
\author{C. Diaconu}
\affiliation{Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, Marseille, France} 
\author{G. Eckerlin}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{S. Egli}
\affiliation{Paul Scherrer Institut, Villigen, Switzerland} 
\author{E. Elsen}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{L. Favart}
\affiliation{Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium\ifFundingTHANKS\relax\else\relax$^{a1}$\fi} 
\author{A. Fedotov}
\affiliation{Institute for Theoretical and Experimental Physics, Moscow, Russia\ifFundingTHANKS\relax\else\relax$^{a6}$\fi} 
\author{J. Feltesse}
\affiliation{Irfu/SPP, CE Saclay, Gif-sur-Yvette, France} 
\author{M. Fleischer}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{A. Fomenko}
\affiliation{Lebedev Physical Institute, Moscow, Russia} 
\author{C. Gal}
\affiliation{Stony Brook University, Stony Brook, USA} 
\author{J. Gayler}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{L. Goerlich}
\affiliation{Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland\ifFundingTHANKS\relax\else\relax$^{a5}$\fi} 
\author{N. Gogitidze}
\affiliation{Lebedev Physical Institute, Moscow, Russia} 
\author{M. Gouzevitch}
\affiliation{Université Claude Bernard Lyon 1, CNRS/IN2P3, Villeurbanne, France} 
\author{C. Grab}
\affiliation{Institut für Teilchenphysik, ETH, Zürich, Switzerland\ifFundingTHANKS\relax\else\relax$^{a11}$\fi} 
\author{T. Greenshaw}
\affiliation{Department of Physics, University of Liverpool, Liverpool, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{G. Grindhammer}
\affiliation{Max-Planck-Institut für Physik, München, Germany} 
\author{D. Haidt}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{R.C.W. Henderson}
\affiliation{Department of Physics, University of Lancaster, Lancaster, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{J. Hessler}
\affiliation{Max-Planck-Institut für Physik, München, Germany} 
\author{J. Hladký}
\affiliation{Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi} 
\author{D. Hoffmann}
\affiliation{Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, Marseille, France} 
\author{R. Horisberger}
\affiliation{Paul Scherrer Institut, Villigen, Switzerland} 
\author{T. Hreus}
\affiliation{Physik-Institut der Universität Zürich, Zürich, Switzerland\ifFundingTHANKS\relax\else\relax$^{a11}$\fi} 
\author{F. Huber}
\affiliation{Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany\ifFundingTHANKS\relax\else\relax$^{a4}$\fi} 
\author{P.M. Jacobs}
\affiliation{Lawrence Berkeley National Laboratory, Berkeley, USA} 
\author{M. Jacquet}
\affiliation{IJCLab, Université Paris-Saclay, CNRS/IN2P3, Orsay, France} 
\author{T. Janssen}
\affiliation{Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium\ifFundingTHANKS\relax\else\relax$^{a1}$\fi} 
\author{A.W. Jung}
\affiliation{Department of Physics and Astronomy, Purdue University, West Lafayette, USA} 
\author{H. Jung}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{M. Kapichine}
\affiliation{Joint Institute for Nuclear Research, Dubna, Russia} 
\author{J. Katzy}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{C. Kiesling}
\affiliation{Max-Planck-Institut für Physik, München, Germany} 
\author{M. Klein}
\affiliation{Department of Physics, University of Liverpool, Liverpool, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{C. Kleinwort}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{H.T. Klest}
\affiliation{Stony Brook University, Stony Brook, USA} 
\author{R. Kogler}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} \affiliation{Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany\ifFundingTHANKS\relax\else\relax$^{a4}$\fi}
\author{P. Kostka}
\affiliation{Department of Physics, University of Liverpool, Liverpool, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{J. Kretzschmar}
\affiliation{Department of Physics, University of Liverpool, Liverpool, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{D. Krücker}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{K. Krüger}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{M.P.J. Landon}
\affiliation{School of Physics and Astronomy, Queen Mary, University of London, London, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{W. Lange}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany} 
\author{P. Laycock}
\affiliation{Brookhaven National Laboratory, Upton, USA} 
\author{S.H. Lee}
\affiliation{University of Michigan, Ann Arbor, USA} 
\author{S. Levonian}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{J. Lin}
\affiliation{Rice University, Houston, USA} 
\author{K. Lipka}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{B. List}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{J. List}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{W. Li}
\affiliation{Rice University, Houston, USA} 
\author{B. Lobodzinski}
\affiliation{Max-Planck-Institut für Physik, München, Germany} 
\author{E. Malinovski}
\affiliation{Lebedev Physical Institute, Moscow, Russia} 
\author{H.-U. Martyn}
\affiliation{I. Physikalisches Institut der RWTH, Aachen, Germany} 
\author{S.J. Maxfield}
\affiliation{Department of Physics, University of Liverpool, Liverpool, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{A. Mehta}
\affiliation{Department of Physics, University of Liverpool, Liverpool, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{A.B. Meyer}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{J. Meyer}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{S. Mikocki}
\affiliation{Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland\ifFundingTHANKS\relax\else\relax$^{a5}$\fi} 
\author{M.M. Mondal}
\affiliation{Stony Brook University, Stony Brook, USA} 
\author{A. Morozov}
\affiliation{Joint Institute for Nuclear Research, Dubna, Russia} 
\author{K. Müller}
\affiliation{Physik-Institut der Universität Zürich, Zürich, Switzerland\ifFundingTHANKS\relax\else\relax$^{a11}$\fi} 
\author{B. Nachman}
\affiliation{Lawrence Berkeley National Laboratory, Berkeley, USA} 
\author{Th. Naumann}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany} 
\author{P.R. Newman}
\affiliation{School of Physics and Astronomy, University of Birmingham, Birmingham, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{C. Niebuhr}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{G. Nowak}
\affiliation{Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland\ifFundingTHANKS\relax\else\relax$^{a5}$\fi} 
\author{J.E. Olsson}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{D. Ozerov}
\affiliation{Paul Scherrer Institut, Villigen, Switzerland} 
\author{S. Park}
\affiliation{Stony Brook University, Stony Brook, USA} 
\author{C. Pascaud}
\affiliation{IJCLab, Université Paris-Saclay, CNRS/IN2P3, Orsay, France} 
\author{G.D. Patel}
\affiliation{Department of Physics, University of Liverpool, Liverpool, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{E. Perez}
\affiliation{CERN, Geneva, Switzerland} 
\author{A. Petrukhin}
\affiliation{Université Claude Bernard Lyon 1, CNRS/IN2P3, Villeurbanne, France} 
\author{I. Picuric}
\affiliation{Faculty of Science, University of Montenegro, Podgorica, Montenegro\ifFundingTHANKS\relax\else\relax$^{a8}$\fi} 
\author{D. Pitzl}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{R. Polifka}
\affiliation{Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi} 
\author{S. Preins}
\affiliation{University of California, Riverside, USA} 
\author{V. Radescu}
\affiliation{Department of Physics, Oxford University, Oxford, UK} 
\author{N. Raicevic}
\affiliation{Faculty of Science, University of Montenegro, Podgorica, Montenegro\ifFundingTHANKS\relax\else\relax$^{a8}$\fi} 
\author{T. Ravdandorj}
\affiliation{Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia} 
\author{P. Reimer}
\affiliation{Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi} 
\author{E. Rizvi}
\affiliation{School of Physics and Astronomy, Queen Mary, University of London, London, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{P. Robmann}
\affiliation{Physik-Institut der Universität Zürich, Zürich, Switzerland\ifFundingTHANKS\relax\else\relax$^{a11}$\fi} 
\author{R. Roosen}
\affiliation{Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium\ifFundingTHANKS\relax\else\relax$^{a1}$\fi} 
\author{A. Rostovtsev}
\affiliation{Institute for Information Transmission Problems RAS, Moscow, Russia\ifFundingTHANKS\relax\else\relax$^{a7}$\fi} 
\author{M. Rotaru}
\affiliation{Horia Hulubei National Institute for R\&D in Physics and Nuclear Engineering (IFIN-HH) , Bucharest, Romania\ifFundingTHANKS\relax\else\relax$^{a3}$\fi} 
\author{D.P.C. Sankey}
\affiliation{STFC, Rutherford Appleton Laboratory, Didcot, Oxfordshire, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{M. Sauter}
\affiliation{Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany\ifFundingTHANKS\relax\else\relax$^{a4}$\fi} 
\author{E. Sauvan}
\affiliation{Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, Marseille, France} \affiliation{LAPP, Université de Savoie, CNRS/IN2P3, Annecy-le-Vieux, France}
\author{S. Schmitt}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{B.A. Schmookler}
\affiliation{Stony Brook University, Stony Brook, USA} 
\author{L. Schoeffel}
\affiliation{Irfu/SPP, CE Saclay, Gif-sur-Yvette, France} 
\author{A. Schöning}
\affiliation{Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany\ifFundingTHANKS\relax\else\relax$^{a4}$\fi} 
\author{F. Sefkow}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{S. Shushkevich}
\affiliation{Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia} 
\author{Y. Soloviev}
\affiliation{Lebedev Physical Institute, Moscow, Russia} 
\author{P. Sopicki}
\affiliation{Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland\ifFundingTHANKS\relax\else\relax$^{a5}$\fi} 
\author{D. South}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{V. Spaskov}
\affiliation{Joint Institute for Nuclear Research, Dubna, Russia} 
\author{A. Specka}
\affiliation{LLR, Ecole Polytechnique, CNRS/IN2P3, Palaiseau, France} 
\author{M. Steder}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{B. Stella}
\affiliation{Dipartimento di Fisica Università di Roma Tre and INFN Roma~3, Roma, Italy} 
\author{U. Straumann}
\affiliation{Physik-Institut der Universität Zürich, Zürich, Switzerland\ifFundingTHANKS\relax\else\relax$^{a11}$\fi} 
\author{C. Sun}
\affiliation{Shandong University, Shandong, P.R.China} 
\author{T. Sykora}
\affiliation{Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi} 
\author{P.D. Thompson}
\affiliation{School of Physics and Astronomy, University of Birmingham, Birmingham, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{D. Traynor}
\affiliation{School of Physics and Astronomy, Queen Mary, University of London, London, UK\ifFundingTHANKS\relax\else\relax$^{a2}$\fi} 
\author{B. Tseepeldorj}
\affiliation{Institute of Physics and Technology of the Mongolian Academy of Sciences, Ulaanbaatar, Mongolia} \affiliation{Ulaanbaatar University, Ulaanbaatar, Mongolia}
\author{Z. Tu}
\affiliation{Brookhaven National Laboratory, Upton, USA} 
\author{A. Valkárová}
\affiliation{Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi} 
\author{C. Vallée}
\affiliation{Aix Marseille Université, CNRS/IN2P3, CPPM UMR 7346, Marseille, France} 
\author{P. Van Mechelen}
\affiliation{Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerp, Belgium\ifFundingTHANKS\relax\else\relax$^{a1}$\fi} 
\author{D. Wegener}
\affiliation{Institut für Physik, TU Dortmund, Dortmund, Germany\ifFundingTHANKS\relax\else\relax$^{a4}$\fi} 
\author{E. Wünsch}
\affiliation{Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany} 
\author{J. Žáček}
\affiliation{Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi} 
\author{J. Zhang}
\affiliation{Shandong University, Shandong, P.R.China} 
\author{Z. Zhang}
\affiliation{IJCLab, Université Paris-Saclay, CNRS/IN2P3, Orsay, France} 
\author{R. Žlebčík}
\affiliation{Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic\ifFundingTHANKS\relax\else\relax$^{a9}$\fi} 
\author{H. Zohrabyan}
\affiliation{Yerevan Physics Institute, Yerevan, Armenia} 
\author{F. Zomer}
\affiliation{IJCLab, Université Paris-Saclay, CNRS/IN2P3, Orsay, France} 
\collaboration{The H1 Collaboration}\noaffiliation