Measurement of the ratio of branching fractions B(B-+/- -> J/psi pi(+/-))/B(B-+/- -> J/psi K-+/-)

ABULENCIA A;ADELMAN J;AFFOLDER T;AKIMOTO T;ALBROW MG;AMBROSE D;AMERIO S;AMIDEI D;ANASTASSOV A;ANIKEEV K;ANNOVI A;ANTOS J;AOKI M;APOLLINARI G;ARGUIN JF;ARISAWA T;ARTIKOV A;ASHMANSKAS W;ATTAL A;AZFAR F;AZZI BACCHETTA P;AZZURRI P;BACCHETTA N;BADGETT W;BARBARO GALTIERI A;BARNES VE;BARNETT BA;BAROIANT S;BARTSCH V;BAUER G;BEDESCHI F;BEHARI S;BELFORTE S;BELLETTINI G;BELLINGER J;BELLONI A;BENJAMIN D;BERETVAS A;BERINGER J;BERRY T;BHATTI A;BINKLEY M;BISELLO, DARIO;BLAIR RE;BLOCKER C;BLUMENFELD B;BOCCI A;BODEK A;BOISVERT V;BOLLA G;BOLSHOV A;BORTOLETTO D;BOUDREAU J;BOVEIA A;BRAU B;BRIGLIADORI L;BROMBERG C;BRUBAKER E;BUDAGOV J;BUDD HS;BUDD S;BUDRONI S;BURKETT K;BUSETTO, GIOVANNI;BUSSEY P;BYRUM KL;CABRERA S;CAMPANELLI M;CAMPBELL M;CANELLI F;CANEPA A;CARILLO S;CARLSMITH D;CAROSI R;CARRON S;CASARSA M;CASTRO A;CATASTINI P;CAUZ D;CAVALLI SFORZA M;CERRI A;CERRITO L;CHANG SH;CHEN YC;CHERTOK M;CHIARELLI G;CHLACHIDZE G;CHLEBANA F;CHO I;CHO K;CHOKHELI D;CHOU JP;CHOUDALAKIS G;CHUANG SH;CHUNG K;CHUNG WH;CHUNG YS;CILJAK M;CIOBANU CI;CIOCCI MA;CLARK A;CLARK D;COCA M;COMPOSTELLA, GABRIELE;CONVERY ME;CONWAY J;COOPER B;COPIC K;CORDELLI M;CORTIANA G;CRESCIOLI F;ALMENAR CC;CUEVAS J;CULBERTSON R;CULLY JC;CYR D;DARONCO S;DATTA M;D'AURIA S;DAVIES T;D'ONOFRIO M;DAGENHART D;DE BARBARO P;DE CECCO S;DEISHER A;DE LENTDECKER G;DELL'ORSO M;DELLI PAOLI F;DEMORTIER L;DENG J;DENINNO M;DE PEDIS D;DERWENT PF;DI GIOVANNI GP;DIONISI C;DI RUZZA B;DITTMANN JR;DITURO P;DORR C;DONATI S;DONEGA M;DONG P;DONINI J;DORIGO T;DUBE S;EFRON J;ERBACHER R;ERREDE D;ERREDE S;EUSEBI R;FANG HC;FARRINGTON S;FEDORKO I;FEDORKO WT;FEILD RG;FEINDT M;FERNANDEZ JP;FIELD R;FLANAGAN G;FOLAND A;FORRESTER S;FOSTER GW;FRANKLIN M;FREEMAN JC;FURIC I;GALLINARO M;GALYARDT J;GARCIA JE;GARBERSON F;GARFINKEL AF;GAY C;GERBERICH H;GERDES D;GIAGU S;GIANNETTI P;GIBSON A;GIBSON K;GIMMELL JL;GINSBURG C;GIOKARIS N;GIORDANI M;GIROMINI P;GIUNTA M;GIURGIU G;GLAGOLEV V;GLENZINSKI D;GOLD M;GOLDSCHMIDT N;GOLDSTEIN J;GOLOSSANOV A;GOMEZ G;GOMEZ CEBALLOS G;GONCHAROV M;GONZALEZ O;GORELOV I;GOSHAW AT;GOULIANOS K;GRESELE A;GRIFFITHS M;GRINSTEIN S;GROSSO PILCHER C;GROUP RC;GRUNDLER U;DA COSTA JG;GUNAY UNALAN Z;HABER C;HAHN K;HAHN SR;HALKIADAKIS E;HAMILTON A;HAN BY;HAN JY;HANDLER R;HAPPACHER F;HARA K;HARE M;HARPER S;HARR RF;HARRIS RM;HARTZ M;HATAKEYAMA K;HAUSER J;HEIJBOER A;HEINEMANN B;HEINRICH J;HENDERSON C;HERNDON M;HEUSER J;HIDAS D;HILL CS;HIRSCHBUEHL D;HOCKER A;HOLLOWAY A;HOU S;HOULDEN M;HSU SC;HUFFMAN BT;HUGHES RE;HUSEMANN U;HUSTON J;INCANDELA J;INTROZZI G;IORI M;ISHIZAWA Y;IVANOV A;IYUTIN B;JAMES E;JANG D;JAYATILAKA B;JEANS D;JENSEN H;JEON EJ;JINDARIANI S;JONES M;JOO KK;JUN SY;JUNG JE;JUNK TR;KAMON T;KARCHIN PE;KATO Y;KEMP Y;KEPHART R;KERZEL U;KHOTILOVICH V;KILMINSTER B;KIM DH;KIM HS;KIM JE;KIM MJ;KIM SB;KIM SH;KIM YK;KIMURA N;KIRSCH L;KLIMENKO S;KLUTE M;KNUTESON B;KO BR;KONDO K;KONG DJ;KONIGSBERG J;KORYTOV A;KOTWAL AV;KOVALEV A;KRAAN AC;KRAUS J;KRAVCHENKO I;KREPS M;KROLL J;KRUMNACK N;KRUSE M;KRUTELYOV V;KUBO T;KUHLMANN SE;KUHR T;KUSAKABE Y;KWANG S;LAASANEN AT;LAI S;LAMI S;LAMMEL S;LANCASTER M;LANDER RL;LANNON K;LATH A;LATINO G;LAZZIZZERA I;LECOMPTE T;LEE J;LEE J;LEE YJ;LEE SW;LEFEVRE R;LEONARDO N;LEONE S;LEVY S;LEWIS JD;LIN C;LIN CS;LINDGREN M;LIPELES E;LISTER A;LITVINTSEV DO;LIU T;LOCKYER NS;LOGINOV A;LORETI M;LOVERRE P;LU RS;LUCCHESI, DONATELLA;LUJAN P;LUKENS P;LUNGU G;LYONS L;LYS J;LYSAK R;LYTKEN E;MACK P;MACQUEEN D;MADRAK R;MAESHIMA K;MAKHOUL K;MAKI T;MAKSIMOVIC P;MALDE S;MANCA G;MARGAROLI F;MARGINEAN R;MARINO C;MARINO CP;MARTIN A;MARTIN M;MARTIN V;MARTINEZ M;MARUYAMA T;MASTRANDREA P;MASUBUCHI T;MATSUNAGA H;MATTSON ME;MAZINI R;MAZZANTI P;MCFARLAND KS;MCINTYRE P;MCNULTY R;MEHTA A;MEHTALA P;MENZEMER S;MENZIONE A;MERKEL P;MESROPIAN C;MESSINA A;MIAO T;MILADINOVIC N;MILES J;MILLER R;MILLS C;MILNIK M;MITRA A;MITSELMAKHER G;MIYAMOTO A;MOED S;MOGGI N;MOHR B;MOORE R;MORELLO M;FERNANDEZ PM;MULMENSTADT J;MUKHERJEE A;MULLER T;MUMFORD R;MURAT P;NACHTMAN J;NAGANO A;NAGANOMA J;NAKANO I;NAPIER A;NECULA V;NEU C;NEUBAUER MS;NIELSEN J;NIGMANOV T;NODULMAN L;NORNIELLA O;NURSE E;OH SH;OH YD;OKSUZIAN I;OKUSAWA T;OLDEMAN R;ORAVA R;OSTERBERG K;PAGLIARONE C;PALENCIA E;PAPADIMITRIOU V;PARAMONOV AA;PARKS B;PASHAPOUR S;PATRICK J;PAULETTA G;PAULINI M;PAUS C;PELLETT DE;PENZO A;PHILLIPS TJ;PIACENTINO G;PIEDRA J;PINERA L;PITTS K;PLAGER C;PONDROM L;PORTELL X;POUKHOV O;POUNDER N;PRAKOSHYN F;PRONKO A;PROUDFOOT J;PTOHOS F;PUNZI G;PURSLEY J;RADEMACKER J;RAHAMAN A;RANJAN N;RAPPOCCIO S;REISERT B;REKOVIC V;RENTON P;RESCIGNO M;RICHTER S;RIMONDI F;RISTORI L;ROBSON A;RODRIGO T;ROGERS E;ROLLI S;ROSER R;ROSSI M;ROSSIN, ROBERTO;RUIZ A;RUSS J;RUSU V;SAARIKKO H;SABIK S;SAFONOV A;SAKUMOTO WK;SALAMANNA G;SALTO O;SALTZBERG D;SANCHEZ C;SANTI L;SARKAR S;SARTORI L;SATO K;SAVARD P;SAVOY NAVARRO A;SCHEIDLE T;SCHLABACH P;SCHMIDT EE;SCHMIDT MP;SCHMITT M;SCHWARZ T;SCODELLARO L;SCOTT AL;SCRIBANO A;SCURI F;SEDOV A;SEIDEL S;SEIYA Y;SEMENOV A;SEXTON KENNEDY L;SFYRLA A;SHAPIRO MD;SHEARS T;SHEPARD PF;SHERMAN D;SHIMOJIMA M;SHOCHET M;SHON Y;SHREYBER I;SIDOTI A;SINERVO P;SISAKYAN A;SJOLIN J;SLAUGHTER AJ;SLAUNWHITE J;SLIWA K;SMITH JR;SNIDER FD;SNIHUR R;SODERBERG M;SOHA A;SOMALWAR S;SORIN V;SPALDING J;SPINELLA F;SPREITZER T;SQUILLACIOTI P;STANITZKI M;STAVERIS POLYKALAS A;ST DENIS R;STELZER B;STELZER CHILTON O;STENTZ D;STROLOGAS J;STUART D;SUH JS;SUKHANOV A;SUN H;SUZUKI T;TAFFARD A;TAKASHIMA R;TAKEUCHI Y;TAKIKAWA K;TANAKA M;TANAKA R;TECCHIO M;TENG PK;TERASHI K;THOM J;THOMPSON AS;THOMSON E;TIPTON P;TIWARI V;TKACZYK S;TOBACK D;TOKAR S;TOLLEFSON K;TOMURA T;TONELLI D;TORRE S;TORRETTA D;TOURNEUR S;TRISCHUK W;TSUCHIYA R;TSUNO S;TURINI N;UKEGAWA F;UNVERHAU T;UOZUMI S;USYNIN D;VALLECORSA S;VAN REMORTEL N;VARGANOV A;VATAGA E;VAZQUEZ F;VELEV G;VERAMENDI G;VESZPREMI V;VIDAL R;VILA I;VILAR R;VINE T;VOLLRATH I;VOLOBOUEV I;VOLPI G;WURTHWEIN F;WAGNER P;WAGNER RG;WAGNER RL;WAGNER J;WAGNER W;WALLNY R;WANG SM;WARBURTON A;WASCHKE S;WATERS D;WEINBERGER M;WESTER WC;WHITEHOUSE B;WHITESON D;WICKLUND AB;WICKLUND E;WILLIAMS G;WILLIAMS HH;WILSON P;WINER BL;WITTICH P;WOLBERS S;WOLFE C;WRIGHT T;WU X;WYNNE SM;YAGIL A;YAMAMOTO K;YAMAOKA J;YAMASHITA T;YANG C;YANG UK;YANG YC;YAO WM;YEH GP;YOH J;YORITA K;YOSHIDA T;YU GB;YU I;YU SS;YUN JC;ZANELLO L;ZANETTI A;ZAW I;ZHANG X;ZHOU J;ZUCCHELLI S.

2009