OBSERVATION OF EXCLUSIVE B-DECAY TO FINAL-STATES CONTAINING A CHARMEDBARYON

Authors
FU X NEMATI B RICHICHI SJ ROSS WR SKUBIC P WOOD M BISHAI M FAST J GERNDT E HINSON JW MIAO T MILLER DH MODESITT M SHIBATA EI SHIPSEY IPJ WANG PN GIBBONS L JOHNSON SD KWON Y ROBERTS S THORNDIKE EH JESSOP CP LINGEL K MARSISKE H PERL ML SCHAFFNER SF WANG R COAN TE DOMINICK J FADEYEV V KOROLKOV I LAMBRECHT M SANGHERA S SHELKOV V STROYNOWSKI R VOLOBOUEV I WEI G ARTUSO M EFIMOV A GAO M GOLDBERG M HE D HORWITZ N KOPP S MONETI GC MOUNTAIN R MUKHIN Y PLAYFER S SKWARNICKI T STONE S XING X BARTELT J CSORNA SE JAIN V MARKA S FREYBERGER A GIBAUT D KINOSHITA K POMIANOWSKI P SCHRENK S CINABRO D BARISH B CHADHA M CHAN S EIGEN G MILLER JS OGRADY C SCHMIDTLER M URHEIM J WEINSTEIN AJ WURTHWEIN F ASNER DM ATHANAS M BLISS DW BROWER WS MASEK G PAAR HP GRONBERG J KORTE CM KUTSCHKE R MENARY S MORRISON RJ NAKANISHI S NELSON HN NELSON TK QIAO C RICHMAN JD ROBERTS D RYD A TAJIMA H WITHERELL MS BALEST R CHO K FORD WT LOHNER M PARK H RANKIN P ROY J SMITH JG ALEXANDER JP BEBEK C BERGER BE BERKELMAN K BLOOM K CASSEL DG CHO HA COFFMAN DM CROWCROFT DS DICKSON M DRELL PS DUMAS DJ EHRLICH R ELIA R GAIDAREV P GITTELMAN B GRAY SW HARTILL DL HELTSLEY BK JONES CD JONES SL KANDASWAMY J KATAYAMA N KIM PC KREINICK DL LEE T LIU Y LUDWIG GS MASUI J MEVISSEN J MISTRY NB NG CR NORDBERG E PATTERSON JR PETERSON D RILEY D SOFFER A WARD C AVERY P PRESCOTT C YANG S YELTON J BRANDENBURG G BRIERE RA LIU T SAULNIER M WILSON R YAMAMOTO H BROWDER TE LI F RODRIGUEZ JL BERGFELD T EISENSTEIN BI ERNST J GLADDING GE GOLLIN GD PALMER M SELEN M THALER JJ EDWARDS KW MCLEAN KW OGG M BELLERIVE A BRITTON DI JANICEK R MACFARLANE DB PATEL PM SPAAN B SADOFF AJ AMMAR R BARINGER P BEAN A BESSON D COPPAGE D COPTY N DAVIS R HANCOCK N KOTOV S KRAVCHENKO I KWAK N KUBOTA Y LATTERY M NELSON JK PATTON S POLING R RIEHLE T SAVINOV V ALAM MS KIM IJ LING Z MAHMOOD AH ONEILL JJ SEVERINI H SUN CR TIMM S WAPPLER F DUBOSCQ JE FULTON R FUJINO D GAN KK HONSCHEID K KAGAN H KASS R LEE J SUNG M UNDRUS A WHITE C WANKE R WOLF A ZOELLER MM
Citation
X. Fu et al., OBSERVATION OF EXCLUSIVE B-DECAY TO FINAL-STATES CONTAINING A CHARMEDBARYON, Physical review letters, 79(17), 1997, pp. 3125-3129
Citations number
11
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
79
Issue
17
Year of publication
1997
Pages
3125 - 3129
Database
ISI
SICI code
0031-9007(1997)79:17<3125:OOEBTF>2.0.ZU;2-8
Abstract
Using data collected in the region of the Upsilon(4S) resonance with t he CLEO-II detector, we report on the first observation of exclusive d ecays of the B meson to final states with a charmed baryon. We have me asured the branching fractions B(B- --> Lambda(c)(+)(p) over bar pi(-) ) = (0.62(-0.20)(+0.23) +/- 0.11 +/- 0.10) X 10(-3) and B((B) over bar (0) --> Lambda(c)(+)(p) over bar pi(+)pi(-)) = (1.33(-0.42)(+0.46) +/- 0.31 +/- 0.21) X 10(-3), where the first error is statistical, the se cond is systematic, and the third is due to uncertainty in the Lambda( c)(+) branching fractions. In addition, we report upper limits for fin al states of the form (B) over bar --> Lambda(c)(+)(p) over bar(n pi) and Lambda(c)(+)(p) over bar(n pi)pi(0), where (n pi) denotes up to fo ur charged pions. [S0031-9007(97)04176-8].