Study of the Decay B0(B¯0)→ρ+ρ-, and Constraints on the Cabibbo-Kobayashi-Maskawa Angle α

B. Aubert;R. Barate;D. Boutigny;F. Couderc;J.-M. Gaillard;A. Hicheur;Y. Karyotakis;J. Lees;V. Tisserand;A. Zghiche;A. Palano;A. Pompili;J. Chen;N. Qi;G. Rong;P. Wang;Y. Zhu;G. Eigen;I. Ofte;B. Stugu;G. Abrams;A. Borgland;A. Breon;D. Brown;J. Button-Shafer;R. Cahn;E. Charles;C. Day;M. Gill;A. Gritsan;Y. Groysman;R. Jacobsen;R. Kadel;J. Kadyk;L. Kerth;Yu. Kolomensky;G. Kukartsev;C. LeClerc;G. Lynch;A. Merchant;L. Mir;P. Oddone;T. Orimoto;M. Pripstein;N. Roe;M. Ronan;V. Shelkov;W. Wenzel;K. Ford;T. Harrison;C. Hawkes;S. Morgan;A. Watson;M. Fritsch;K. Goetzen;T. Held;H. Koch;B. Lewandowski;M. Pelizaeus;M. Steinke;J. Boyd;N. Chevalier;W. Cottingham;M. Kelly;T. Latham;F. Wilson;T. Cuhadar-Donszelmann;C. Hearty;N. Knecht;T. Mattison;J. McKenna;D. Thiessen;A. Khan;P. Kyberd;L. Teodorescu;V. Blinov;A. Bukin;V. Druzhinin;V. Golubev;V. Ivanchenko;E. Kravchenko;A. Onuchin;S. Serednyakov;Yu. Skovpen;E. Solodov;A. Yushkov;D. Best;M. Bruinsma;M. Chao;I. Eschrich;D. Kirkby;A. Lankford;M. Mandelkern;R. Mommsen;W. Roethel;D. Stoker;C. Buchanan;B. Hartfiel;J. Gary;B. Shen;K. Wang;D. del Re;H. Hadavand;E. Hill;D. MacFarlane;H. Paar;Sh. Rahatlou;V. Sharma;J. Berryhill;C. Campagnari;B. Dahmes;S. Levy;O. Long;A. Lu;M. Mazur;J. Richman;W. Verkerke;T. Beck;A. Eisner;C. Heusch;W. Lockman;T. Schalk;R. Schmitz;B. Schumm;A. Seiden;P. Spradlin;D. Williams;M. Wilson;J. Albert;E. Chen;G. Dubois-Felsmann;A. Dvoretskii;D. Hitlin;I. Narsky;T. Piatenko;F. Porter;A. Ryd;A. Samuel;S. Yang;S. Jayatilleke;G. Mancinelli;B. Meadows;M. Sokoloff;T. Abe;F. Blanc;P. Bloom;S. Chen;W. Ford;U. Nauenberg;A. Olivas;P. Rankin;J. Smith;J. Zhang;L. Zhang;A. Chen;J. Harton;A. Soffer;W. Toki;R. Wilson;Q. Zeng;D. Altenburg;T. Brandt;J. Brose;T. Colberg;M. Dickopp;E. Feltresi;A. Hauke;H. Lacker;E. Maly;R. Müller-Pfefferkorn;R. Nogowski;S. Otto;A. Petzold;J. Schubert;K. Schubert;R. Schwierz;B. Spaan;J. Sundermann;D. Bernard;G. Bonneaud;F. Brochard;P. Grenier;S. Schrenk;Ch. Thiebaux;G. Vasileiadis;M. Verderi;D. Bard;P. Clark;D. Lavin;F. Muheim;S. Playfer;Y. Xie;M. Andreotti;V. Azzolini;D. Bettoni;C. Bozzi;R. Calabrese;G. Cibinetto;E. Luppi;M. Negrini;L. Piemontese;A. Sarti;E. Treadwell;R. Baldini-Ferroli;A. Calcaterra;R. de Sangro;G. Finocchiaro;P. Patteri;M. Piccolo;A. Zallo;A. Buzzo;R. Capra;R. Contri;G. Crosetti;M. Lo Vetere;M. Macri;M. Monge;S. Passaggio;C. Patrignani;E. Robutti;A. Santroni;S. Tosi;S. Bailey;G. Brandenburg;M. Morii;E. Won;R. Dubitzky;U. Langenegger;W. Bhimji;D. Bowerman;P. Dauncey;U. Egede;J. Gaillard;G. Morton;J. Nash;G. Taylor;G. Grenier;U. Mallik;J. Cochran;H. Crawley;J. Lamsa;W. Meyer;S. Prell;E. Rosenberg;J. Yi;M. Davier;G. Grosdidier;A. Höcker;S. Laplace;F. Le Diberder;V. Lepeltier;A. Lutz;T. Petersen;S. Plaszczynski;M. Schune;L. Tantot;G. Wormser;C. Cheng;D. Lange;M. Simani;D. Wright;A. Bevan;J. Coleman;J. Fry;E. Gabathuler;R. Gamet;R. Parry;D. Payne;R. Sloane;C. Touramanis;J. Back;C. Cormack;P. Harrison;G. Mohanty;C. Brown;G. Cowan;R. Flack;H. Flaecher;M. Green;C. Marker;T. McMahon;S. Ricciardi;F. Salvatore;G. Vaitsas;M. Winter;D. Brown;C. Davis;J. Allison;N. Barlow;R. Barlow;P. Hart;M. Hodgkinson;G. Lafferty;A. Lyon;J. Williams;A. Farbin;W. Hulsbergen;A. Jawahery;D. Kovalskyi;C. Lae;V. Lillard;D. Roberts;G. Blaylock;C. Dallapiccola;K. Flood;S. Hertzbach;R. Kofler;V. Koptchev;T. Moore;S. Saremi;H. Staengle;S. Willocq;R. Cowan;G. Sciolla;F. Taylor;R. Yamamoto;D. Mangeol;P. Patel;S. Robertson;A. Lazzaro;F. Palombo;J. Bauer;L. Cremaldi;V. Eschenburg;R. Godang;R. Kroeger;J. Reidy;D. Sanders;D. Summers;H. Zhao;S. Brunet;D. Côté;P. Taras;H. Nicholson;N. Cavallo;F. Fabozzi;C. Gatto;L.