Diffractive Photoproduction of J / ψ Mesons with Large Momentum Transfer at HERA H 1 Collaboration

  title={Diffractive Photoproduction of J / ψ Mesons with Large Momentum Transfer at HERA H 1 Collaboration},
  author={Arda Aktaş and Viatcheslav Andreev and T. Anthonis and A. Astvatsatourov and A. Babaev and Stephanie T Backovic and J. W. B{\"a}hr and P Iu Baranov and Etienne Barrelet and Warren A. Bartel and Stefan Baumgartner and Juliette Becker and Matthew Beckingham and Armen Beglarian and Olaf Behnke and O. Behrendt and Alexander Belousov and Ch. Berger and Torsten Berndt and Jean Charles Bizot and J{\"o}rg B{\"o}hme and M.-O. Boenig and Vincent Boudry and Juraj Bracinik and W. Braunschweig and V. Brisson and H. M. Br{\"o}ker and David P. Brown and D. Bruncko and F. W. B{\"u}sser and Armen Bunyatyan and Andrew M. Burrage and Gerd W. Buschhorn and L. Bystritskaya and Andrew J. Campbell and S. Caron and F. Cassol-Brunner and Vladimir Chekelian and Dave Clarke and Caroline Collard and Jes{\'u}s Guillermo Contreras and Y. R. Coppens and Justin Coughlan and M.-C. Cousinou and Barbara E. Cox and G. Cozzika and Jaroslav Cvach and J. B. Dainton and Wolfgang Dau and K. Daum and Mattias Davidsson and Bruno Delcourt and Nicolas Delerue and R A Demirchyan and Albert de Roeck and Erick D. De Wolf and Cristinel Diaconu and Jochen Dingfelder and Paul Dixon and Vitaliy Dodonov and Jayce Dowell and Ana Dubak and Carlo Duprel and Geofrey E. Eckerlin and V A Efremenko and Simon Egli and R{\"u}diger Eichler and F. -L. Eisele and Malte Ellerbrock and Eckhard Elsen and Martin Erdmann and Wilhelm Erdmann and P. J. W. F. Faulkner and Laurent Favart and Alexei Fedotov and R. Felst and Jozef Ferencei and Sara Ferr{\'o}n and Manfred Fleischer and P H Fleischmann and Yuedi Fleming and Gero Flucke and G. Fl{\"u}gge and Anton Fomenko and Ida Foresti and J. Form{\'a}nek and Guenter Franke and G. Frising and Erwin Gabathuler and K. Gabathuler and John Garvey and Jana Gassner and J. Gayler and R. Gerhards and Christian Gerlich and S. Ghazaryan and Lars G{\"o}rlich and N M Gogitidze and S. Gorbounov and Christoph Grab and Varlen Grabski and H. Gr{\"a}ssler and Tim Greenshaw and G. Grindhammer and D. Haidt and Leszek Hajduk and Julian Haller and Bernhard Heinemann and G{\"o}tz Heinzelmann and Roger William Henderson and Henning Henschel and O. Henshaw and Roel Heremans and G. V. Herrera and I. Herynek and Marcus Hildebrandt and Micha Hilgers and K. H. Hiller and Jan Hladk{\'y} and P. H{\"o}ting and Dominikus Hoffmann and Roland Horisberger and Artyom Hovhannisyan and Mary Ibbotson and Marie Elise Jacquet and L. Janauschek and Xavier Janssen and V. Jemanov and L. -E. J{\"o}nsson and Catherine L. Johnson and Daniel P. Johnson and M. A. S. Jones and Hojoong Jung and David Kant and M. Kapichine and Martin K Karlsson and Judith Katzy and Frerich J. Keil and Nathan Keller and J Woodfin Kennedy and I. R. Kenyon and Christian Kiesling and Max C Klein and Claus Kleinwort and Thomas Kluge and Gundi Knies and Birger Koblitz and S. D. Kolya and V. Korbel and Pal Kostka and R. Koutouev and A. Koutov and J{\"u}rgen Kroseberg and Kirstin Kr{\"u}ger and J. Kueckens and T. Kuhr and M. P. J. Landon and Wulfhard Lange and T. La{\vs}tovǐcka and P. Laycock and A. Lebedev and B. Lei\ssner and R. Lemrani and Victor Lendermann and S. Levonian and B. List and Ewelina Maria Lobodzinska and Natalia Loktionova and Ricardo Lopez-Fernandez and V. Lubimov and H. L{\"u}ders and Stephan Lueders and Dr. J. L{\"u}ke and L. Lytkin and A. Makankine and Nicholas J Malden and E. I. Malinovski and Salvatore Mangano and Pierre Marage and J{\"o}rg Marks and Richard Marshall and H Martyn and Janusz Martyniak and Steve Maxfield and David W. Meer and Andrew Mehta and Karlheinz Meier and Andreas B. Meyer and H. -W. Meyer and J. -M. Meyer and S. Michine and S. Mikocki and David Milstead and S. Mohrdieck and Fr{\'e}d{\'e}rique Moreau and Alexei Morozov and Jenny V. Morris and K. T. Mueller and P. Murı́n and V. Nagovizin and B. Naroska and Jakob Naumann and Th. Naumann and Peter R. Newman and Florian Niebergall and Carsten Niebuhr and Daniil Nikitin and Grazyna Nowak and M. No{\vz}i{\vc}ka and B. E. Olivier and J. E. Olsson and Dmitry Ozerov and V. Panassik and C. Pascaud and G. D. Patel and M. Peez and Enrique Perez and Alexey Petrukhin and Julian Paul Phillips and Daniel Pitzl and Roman P{\"o}schl and Bogdan Povh and N. Raicevic and Jens Rauschenberger and Peter Reimer and Burkard Reisert and Chr Risler and Eram Rizvi and Peter Robmann and Robert G. Roosen and Andrey Rostovtsev and S. Rusakov and Krzysztof A. Rybicki and D. P. C. Sankey and E. Sauvan and Sebastian Sch{\"a}tzel and J{\"u}rgen Scheins and F. P. Schilling and P. Schleper and David B Schmidt and Sarah Schmidt and S. O. Schmitt and Matthias Schneider and laurent. schoeffel and A. Schoening and Vicki Schroeder and H.-C. Schultz-Coulon and Christian Schwanenberger and Kamil Sedlak and Felix Sefkow and I. Sheviakov and L. N. Shtarkov and Y. Sirois and Terry Sloan and Polina Smirnov and Yu. V. Soloviev and David. South and V. Spaskov and Arnd E. Specka and Hedva Spitzer and Rainer Stamen and Barbara Stella and J. Stiewe and Ingrid Strauch and Ulrich Straumann and Gilbert Thompson and Paul Daniel Thompson and Ferenc Tomasz and D. J. Traynor and Peter Tru{\"o}l and Georgios Tsipolitis and I. Tsurin and Jacek Turnau and J. E. Turney and Ekaterini Tzamariudaki and Ali I. Uraev and Miguel {\'A}ngel Sicilia Urb{\'a}n and A. Usik and S. Valk{\'a}r and A. Valk{\'a}rov{\'a}},
The diffractive photoproduction of J/ψ mesons is measured with the H1 detector at the ep collider HERA using an integrated luminosity of 78 pb −1. The differential cross section dσ(γp → J/ψY )/dt is studied in the range 2 < |t| < 30 GeV2, wheret is the square of the four-momentum transferred at the proton vertex. The cro ss section is also presented as a function of the photon-proton centre-of-mass energy Wγp in threet intervals, spanning the range50 < Wγp < 200 GeV. A fast rise of the cross… CONTINUE READING