%X We report the results of a search for T and CP violation in B-0-(B) over bar (0) mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II B Factory. The asymmetry between .(+).(+) and .(-).(-) events allows us to compare the probabilities for (B) over bar (0)-->B (0) and B-0-->(B) over bar (0) oscillations and thus probe T and CP invariance. Using a sample of 23x10(6) B (B) over bar pairs, we measure a same-sign dilepton asymmetry of A(T/CP)=[0.5+/-1.2(stat) +/-1.4(syst)]% . For the modulus of the ratio of complex mixing parameters p and q , we obtain parallel toq/pparallel to=0.998+/-0.006(stat) +/-0.007(syst) . %A B Aubert %A D Boutigny %A JM Gaillard %A A Hicheur %A Y Karyotakis %A JP Lees %A P Robbe %A V Tisserand %A A Zghiche %A A Palano %A A Pompili %A GP Chen %A JC Chen %A ND Qi %A G Rong %A P Wang %A YS Zhu %A G Eigen %A B Stugu %A GS Abrams %A AW Borgland %A AB Breon %A DN Brown %A J Button-Shafer %A RN Cahn %A MS Gill %A AV Gritsan %A Y Groysman %A RG Jacobsen %A RW Kadel %A J Kadyk %A LT Kerth %A YG Kolomensky %A JF Kral %A C LeClerc %A ME Levi %A G Lynch %A PJ Oddone %A M Pripstein %A NA Roe %A A Romosan %A MT Ronan %A VG Shelkov %A AV Telnov %A WA Wenzel %A TJ Harrison %A CM Hawkes %A DJ Knowles %A SW O'Neale %A RC Penny %A AT Watson %A NK Watson %A T Deppermann %A K Goetzen %A H Koch %A M Kunze %A B Lewandowski %A K Peters %A H Schmuecker %A M Steinke %A NR Barlow %A W Bhimji %A N Chevalier %A PJ Clark %A WN Cottingham %A B Foster %A C Mackay %A FF Wilson %A K Abe %A C Hearty %A TS Mattison %A JA McKenna %A D Thiessen %A S Jolly %A AK McKemey %A VE Blinov %A AD Bukin %A DA Bukin %A AR Buzykaev %A VB Golubev %A VN Ivanchenko %A AA Korol %A EA Kravchenko %A AP Onuchin %A SI Serednyakov %A YI Skovpen %A VI Telnov %A AN Yushkov %A D Best %A M Chao %A D Kirkby %A AJ Lankford %A M Mandelkern %A S McMahon %A DP Stoker %A K Arisaka %A C Buchanan %A S Chun %A DB MacFarlane %A S Prell %A S Rahatlou %A G Raven %A V Sharma %A C Campagnari %A B Dahmes %A PA Hart %A N Kuznetsova %A SL Levy %A O Long %A A Lu %A MA Mazur %A JD Richman %A W Verkerke %A J Beringer %A AM Eisner %A M Grothe %A CA Heusch %A WS Lockman %A T Pulliam %A T Schalk %A RE Schmitz %A BA Schumm %A A Seiden %A M Turri %A W Walkowiak %A DC Williams %A MG Wilson %A E Chen %A GP Dubois-Felsmann %A A Dvoretskii %A DG Hitlin %A S Metzler %A J Oyang %A FC Porter %A A Ryd %A S Yang %A RY Zhu %A S Devmal %A S Jayatilleke %A G Mancinelli %A BT Meadows %A MD Sokoloff %A T Barillari %A P Bloom %A WT Ford %A U Nauenberg %A A Olivas %A P Rankin %A J Roy %A JG Smith %A WC van Hoek %A L Zhang %A J Blouw %A JL Harton %A M Krishnamurthy %A A Soffer %A WH Toki %A RJ Wilson %A J Zhang %A T Brandt %A J Brose %A T Colberg %A M Dickopp %A RS Dubitzky %A A Hauke %A E Maly %A R Muller-Pfefferkorn %A S Otto %A KR Schubert %A R Schwierz %A B Spaan %A L Wilden %A D Bernard %A GR Bonneaud %A F Brochard %A J Cohen-Tanugi %A S Ferrag %A S T'Jampens %A C Thiebaux %A G Vasileiadis %A M Verderi %A A Anjomshoaa %A R Bernet %A A Khan %A D Lavin %A F Muheim %A S Playfer %A JE Swain %A J Tinslay %A M Falbo %A C Borean %A C Bozzi %A L Piemontese %A E Treadwell %A F Anulli %A R Baldini-Ferroli %A A Calcaterra %A R de Sangro %A D Falciai %A G Finocchiaro %A P Patteri %A IM Peruzzi %A M Piccolo %A Y Xie %A A Zallo %A S Bagnasco %A A Buzzo %A R Contri %A G Crosetti %A M Lo Vetere %A M Macri %A MR Monge %A S Passaggio %A FC Pastore %A C Patrignani %A E Robutti %A A Santroni %A S Tosi %A M Morii %A R Bartoldus %A R Hamilton %A U Mallik %A J Cochran %A HB Crawley %A PA Fischer %A J Lamsa %A WT Meyer %A EI Rosenberg %A J Yi %A G Grosdidier %A A Hocker %A HM Lacker %A S Laplace %A F Le Diberder %A V Lepeltier %A AM Lutz %A S Plaszczynski %A MH Schune %A S Trincaz-Duvoid %A G Wormser %A RM Bionta %A V Brigljevic %A DJ Lange %A M Mugge %A K van Bibber %A DM Wright %A AJ Bevan %A JR Fry %A E Gabathuler %A R Gamet %A M George %A M Kay %A DJ Payne %A RJ Sloane %A C Touramanis %A ML Aspinwall %A DA Bowerman %A PD Dauncey %A U Egede %A I Eschrich %A GW Morton %A JA Nash %A P Sanders %A D Smith %A JJ Back %A G Bellodi %A P Dixon %A PF Harrison %A RJL Potter %A HW Shorthouse %A P Strother %A PB Vidal %A G Cowan %A S George %A MG Green %A A Kurup %A CE Marker %A TR McMahon %A S Ricciardi %A F Salvatore %A G Vaitsas %A D Brown %A CL Davis %A J Allison %A RJ Barlow %A JT Boyd %A AC Forti %A F Jackson %A GD Lafferty %A N Savvas %A JH Weatherall %A JC Williams %A A Farbin %A A Jawahery %A V Lillard %A J Olsen %A DA Roberts %A JR Schieck %A G Blaylock %A C Dallapiccola %A KT Flood %A SS Hertzbach %A R Kofler %A VB Koptchev %A TB Moore %A H Staengle %A S Willocq %A B Brau %A R Cowan %A G Sciolla %A F Taylor %A RK Yamamoto %A M Milek %A PM Patel %A F Palombo %A JM Bauer %A L Cremaldi %A V Eschenburg %A R Kroeger %A J Reidy %A DA Sanders %A DJ Summers %A C Hast %A JY Nief %A P Taras %A H Nicholson %A C Cartaro %A N Cavallo %A G De Nardo %A F Fabozzi %A C Gatto %A L Lista %A P Paolucci %A D Piccolo %A C Sciacca %A JM LoSecco %A JRG Alsmiller %A TA Gabriel %A J Brau %A R Frey %A E Grauges %A M Iwasaki %A NB Sinev %A D Strom %A F Colecchia %A F Dal Corso %A A Dorigo %A F Galeazzi %A M Margoni %A G Michelon %A M Morandin %A M Posocco %A M Rotondo %A F Simonetto %A R Stroili %A E Torassa %A C Voci %A M Benayoun %A H Briand %A J Chauveau %A P David %A C de la Vaissiere %A L Del Buono %A O Hamon %A P Leruste %A J Ocariz %A M Pivk %A L Roos %A J Stark %A PF Manfredi %A V Re %A V Speziali %A ED Frank %A L Gladney %A QH Guo %A J Panetta %A C Angelini %A G Batignani %A S Bettarini %A M Bondioli %A F Bucci %A E Campagna %A M Carpinelli %A F Forti %A MA Giorgi %A A Lusiani %A G Marchiori %A F Martinez-Vidal %A M Morganti %A N Neri %A E Paoloni %A M Rama %A G Rizzo %A F Sandrelli %A G Simi %A G Triggiani %A J Walsh %A M Haire %A D Judd %A K Paick %A L Turnbull %A DE Wagoner %A J Albert %A C Lu %A V Miftakov %A SF Schaffner %A AJS Smith %A A Tumanov %A EW Varnes %A G Cavoto %A D del Re %A R Faccini %A F Ferrarotto %A F Ferroni %A MA Mazzoni %A S Morganti %A G Piredda %A M Serra %A C Voena %A S Christ %A R Waldi %A T Adye %A N De Groot %A B Franek %A NI Geddes %A GP Gopal %A SM Xella %A R Aleksan %A S Emery %A A Gaidot %A SF Ganzhur %A PF Giraud %A GH de Monchenault %A W Kozanecki %A M Langer %A GW London %A B Mayer %A B Serfass %A G Vasseur %A C Yeche %A M Zito %A MV Purohit %A H Singh %A AW Weidemann %A FX Yumiceva %A I Adam %A D Aston %A N Berger %A AM Boyarski %A G Calderini %A MR Convery %A DP Coupal %A D Dong %A J Dorfan %A W Dunwoodie %A RC Field %A T Glanzman %A SJ Gowdy %A T Haas %A V Halyo %A T Himel %A T Hryn'ova %A ME Huffer %A WR Innes %A CP Jessop %A MH Kelsey %A P Kim %A ML Kocian %A U Langenegger %A DWGS Leith %A S Luitz %A V Luth %A HL Lynch %A H Marsiske %A S Menke %A R Messner %A DR Muller %A CP O'Grady %A VE Ozcan %A A Perazzo %A M Perl %A S Petrak %A H Quinn %A BN Ratcliff %A SH Robertson %A A Roodman %A AA Salnikov %A T Schietinger %A RH Schindler %A J Schwiening %A A Snyder %A A Soha %A SM Spanier %A J Stelzer %A D Su %A MK Sullivan %A HA Tanaka %A J Va'vra %A SR Wagner %A M Weaver %A AJR Weinstein %A WJ Wisniewski %A DH Wright %A CC Young %A PR Burchat %A CH Cheng %A TI Meyer %A C Roat %A R Henderson %A W Bugg %A H Cohn %A JM Izen %A I Kitayama %A XC Lou %A F Bianchi %A M Bona %A D Gamba %A L Bosisio %A G Della Ricca %A S Dittongo %A L Lanceri %A P Poropat %A G Vuagnin %A RS Panvini %A CM Brown %A PD Jackson %A R Kowalewski %A JM Roney %A HR Band %A E Charles %A S Dasu %A M Datta %A AM Eichenbaum %A H Hu %A JR Johnson %A R Liu %A F Di Lodovico %A Y Pan %A R Prepost %A IJ Scott %A SJ Sekula %A JH von Wimmersperg-Toeller %A SL Wu %A Z Yu %A TMB Kordich %A H Neal %A . BABAR Collaboration %J PHYS REV LETT %L discovery1303608 %I AMERICAN PHYSICAL SOC %V 88 %K DECAYS, PARAMETERS %N 23 %T Search for T and CP violation in B-0-(B)over-bar(0) mixing with inclusive dilepton events %D 2002