SEARCH FOR EXCLUSIVE B-]U SEMILEPTONIC DECAYS OF B-MESONS

Authors
BEAN A GRONBERG J KUTSCHKE R MENARY S MORRISON RJ NELSON HN RICHMAN JD TAJIMA H SCHMIDT D SPERKA D WITHERELL MS PROCARIO M YANG S BALLEST R DAOUDI M FORD WT JOHNSON DR LINGEL K LOHNER M RANKIN P SMITH JG ALEXANDER JP BEBEK C BERKELMAN K BESSON D BROWDER TE CASSEL DG CHO HA COFFMAN DM DRELL PS EHRLICH R GALIK RS GARCIASCIVERES M GEISER B GITTELMAN B GRAY SW HARTILL DL HELTSLEY BK HONSCHEID K JONES CD KANDASWAMY J KATAYAMA N KIM PC KREINICK DL LUDWIG GS MASUI J MEVISSEN J MISTRY NB NG CR NORDBERG E OGG M OGRADY C PATTERSON JR PETERSON D RILEY D SAPPER M SELEN M WORDEN H WORRIS M WURTHWEIN F AVERY P FREYBERGER A RODRIGUEZ J STEPHENS R YELTON J CINABRO D HENDERSON S KINOSHITA K LIU T SAULNIER M WILSON R YAMAMOTO H SADOFF AJ AMMAR R BALL S BARINGER P COPPAGE D COPTY N DAVIS R HANCOCK N KELLY M KWAK N LAM H KUBOTA Y LATTERY M NELSON JK PATTON S PERTICONE D POLING R SAVINOV V SCHRENK S WANG R ALAM MS KIM IJ NEMATI B ONEILL JJ ROMERO V SEVERINI H SUN CR ZOELLER MM CRAWFORD G FULTON R GAN KK KAGAN H KASS R LEE J MALCHOW R MORROW F SKOVPEN Y SUNG M WHITE C WHITMORE J WILSON P BUTLER F FU X KALBFLEISCH G LAMBRECHT M ROSS WR SKUBIC P SNOW J WANG PL WOOD M BORTOLETTO D BROWN DN DOMINICK J MCILWAIN RL MIAO T MILLER DH MODESITT M SCHAFFNER SF SHIBATA EI SHIPSEY IPJ WANG PN BATTLE M ERNST J KROHA H ROBERTS S SPARKS K THORNDIKE EH WANG CH SANGHERA S SKWARNICKI T STROYNOWSKI R ARTUSO M GOLDBERG M HORWITZ N KENNETT R MONETI GC MUHEIM F PLAYFER S ROZEN Y RUBIN P STONE S THULASIDAS M ZHU G BARNES AV BARTELT J CSORNA SE EGYED Z JAIN V SHELDON P AKERIB DS BARISH B CHADHA M CHAN S COWEN DF EIGEN G MILLER JS URHEIM J WEINSTEIN AJ ACOSTA D ATHANAS M MASEK G ONG B PAAR H SIVERTZ M
Citation
A. Bean et al., SEARCH FOR EXCLUSIVE B-]U SEMILEPTONIC DECAYS OF B-MESONS, Physical review letters, 70(18), 1993, pp. 2681-2685
Citations number
11
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
70
Issue
18
Year of publication
1993
Pages
2681 - 2685
Database
ISI
SICI code
0031-9007(1993)70:18<2681:SFEBSD>2.0.ZU;2-3
Abstract
Using a sample of 935 000 BBBAR pairs collected with the CLEO-II detec tor at the Cornell Storage Ring, we have obtained upper limits on the branching ratios for the b --> ul- nuBAR processes B- --> omegal- nuBA R, B- --> rho0l- nuBAR, and B0BAR --> rho+l- nuBAR. The combined resul t using the relationships among the widths for these three modes is B( B- --> rho0l- nuBAR) < (1.6-2.7) x 10(-4) at 90% C.L., where the range of values is due to model dependence of the detection efficiencies. T hese measurements yield the limits \V(ub)/V(cb)\ < 0.08-0.13.