Coherent photoproduction of π + from 3

R. Nasseripour,1 B.L. Berman,1 K.P. Adhikari,30 D. Adikaram,30 M. Anghinolfi,19 J. Ball,9 M. Battaglieri,19 V. Batourine,36 I. Bedlinskiy,22 A.S. Biselli,13,31 D. Branford,12 W.J. Briscoe,1 W.K. Brooks,38,36 V.D. Burkert,36 D.S. Carman,36 L. Casey,8 P.L. Cole,17,36 P. Collins,8 V. Crede,15 A. D’Angelo,20,33 A. Daniel,29 N. Dashyan,42 R. De Vita,19 E. De Sanctis,18 A. Deur,36 B. Dey,7 R. Dickson,7 C. Djalali,35 D. Doughty,10 R. Dupre,2 H. Egiyan,36,41 A. El Alaoui,2 L. El Fassi,2 S. Fegan,39 A. Fradi,21 M.Y. Gabrielyan,14 G.P. Gilfoyle,32 K.L. Giovanetti,23 F.X. Girod,36 J.T. Goetz,4 W. Gohn,11 R.W. Gothe,35 L. Graham,35 K.A. Griffioen,41 B. Guegan,21 K. Hafidi,2 H. Hakobyan,38,42 C. Hanretty,15 D. Heddle,10,36 M. Holtrop,27 C.E. Hyde,30 Y. Ilieva,35 D.G. Ireland,39 E.L. Isupov,34 D. Keller,29 M. Khandaker,28 P. Khetarpal,14 A. Kim,24 W. Kim,24 A. Klein,30 F.J. Klein,8,36 P. Konczykowski,9 V. Kubarovsky,36 S.E. Kuhn,30 S.V. Kuleshov,38,22 V. Kuznetsov,24 N.D. Kvaltine,40 K. Livingston,39 H.Y. Lu,7 I.J.D. MacGregor,39 M. Mayer,30 J. McAndrew,12 B. McKinnon,39 A.M. Micherdzinska,1 M. Mirazita,18 K. Moriya,7 B. Moreno,9 B. Morrison,3 H. Moutarde,9 E. Munevar,1 P. Nadel-Turonski,36 A. Ni,24 S. Niccolai,21,1 G. Niculescu,23,29 I. Niculescu,23,1 M. Osipenko,19 A.I. Ostrovidov,15 M. Paolone,35 R. Paremuzyan,42 K. Park,36,24 S. Park,15 E. Pasyuk,36,3 S. Anefalos Pereira,18 Y. Perrin,25 S. Pisano,21 S. Pozdniakov,22 J.W. Price,5 S. Procureur,9 D. Protopopescu,39 M. Ripani,19 B.G. Ritchie,3 G. Rosner,39 P. Rossi,18 F. Sabatié,9,30 M.S. Saini,15 C. Salgado,28 D. Schott,14 R.A. Schumacher,7 H. Seraydaryan,30 Y.G. Sharabian,36,42 E.S. Smith,36 G.D. Smith,39 D.I. Sober,8 D. Sokhan,21 S.S. Stepanyan,24 S. Stepanyan,36,42 P. Stoler,31 S. Strauch,35 R. Suleiman,26 M. Taiuti,16,* W. Tang,29 C.E. Taylor,17 D.J. Tedeschi,35 S. Tkachenko,35 M. Ungaro,11,31 B. Vernarsky,7 M.F. Vineyard,37,32 E. Voutier,25 D.P. Watts,12 L.B. Weinstein,30 D.P. Weygand,36 M.H. Wood,6 B. Zhao,41 and Z.W. Zhao40 (The CLAS Collaboration) 1The George Washington University, Washington, DC 20052, USA 2Argonne National Laboratory, Argonne, Illinois 60441, USA 3Arizona State University, Tempe, Arizona 85287-1504, USA 4University of California at Los Angeles, Los Angeles, California 90095-1547, USA 5California State University, Dominguez Hills, Carson, California 90747, USA 6Canisius College, Buffalo, New York 14208, USA 7Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA 8Catholic University of America, Washington, DC 20064, USA 9CEA, Centre de Saclay, Irfu/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, France 10Christopher Newport University, Newport News, Virginia 23606, USA 11University of Connecticut, Storrs, Connecticut 06269, USA 12Edinburgh University, Edinburgh EH9 3JZ, United Kingdom 13Fairfield University, Fairfield, Connecticut 06824, USA 14Florida International University, Miami, Florida 33199, USA 15Florida State University, Tallahassee, Florida 32306, USA 16Università di Genova, I-16146 Genova, Italy 17Idaho State University, Pocatello, Idaho 83209, USA 18Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, I-00044 Frascati, Italy 19Istituto Nazionale di Fisica Nucleare, Sezione di Genova, I-16146 Genova, Italy 20Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tor Vergata, I-00133 Rome, Italy 21Institut de Physique Nucléaire Orsay, Orsay, France 22Institute of Theoretical and Experimental Physics, Moscow 117259, Russia 23James Madison University, Harrisonburg, Virginia 22807, USA 24Kyungpook National University, Daegu 702-701, Republic of Korea 25Laboratoire de Physique Subatomique et de Cosmologie de Grenoble, Universite Joseph Fourier, CNRS/IN2P3,