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STUDY OF THE DECAY LAMBDA(C+)-]LAMBDA-L+NU(L)

Authors

BERGFELD T EISENSTEIN BI GOLLIN G ONG B PALMER M SELEN M THALER JJ SADOFF AJ AMMAR R BALL S BARINGER P BEAN A BESSON D 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 SEVERINI H SUN CR ZOELLER MM CRAWFORD G DAUBENMIER CM FULTON R FUJINO D GAN KK HONSCHEID K KAGAN H KASS R LEE J MALCHOW R MORROW F SKOVPEN Y SUNG M WHITE C BUTLER F FU X KALBFLEISCH G ROSS WR SKUBIC P SNOW J WANG PL WOOD M BROWN DN FAST J MCILWAIN RL MIAO T MILLER DH MODESITT M PAYNE D SHIBATA EI SHIPSEY IPJ WANG PN BATTLE M ERNST J KWON Y ROBERTS S THORNDIKE EH WANG CH DOMINICK J LAMBRECHT M SANGHERA S SHELKOV V SKWARNICKI T STROYNOWSKI R VOLOBOUEV I WEI G ZADOROZHNY P ARTUSO M GOLDBERG M HE D HORWITZ N KENNETT R MOUNTAIN R MONETI GC MUHEIM F MUKHIN Y PLAYFER S ROZEN Y STONE S THULASIDAS M VASSEUR G ZHU G BARTELT J CSORNA SE EGYED Z JAIN V KINOSHITA K EDWARDS KW OGG M BRITTON DI HYATT ERF MACFARLANE DB PATEL PM AKERIB DS BARISH B CHADHA M CHAN S COWEN DF EIGEN G MILLER JS OGRADY C URHEIM J WEINSTEIN AJ ACOSTA D ATHANAS M MASEK G PAAR HP GRONBERG J KUTSCHKE R MENARY S MORRISON RJ NAKANISHI S NELSON HN NELSON TK QIAO C RICHMAN JD RYD A TAJIMA H SCHMIDT D SPERKA D WITHERELL MS PROCARIO M BALEST R CHO K DAOUDI M FORD WT JOHNSON DR LINGEL K LOHNER M RANKIN P SMITH JG ALEXANDER JP BEBEK C BERKELMAN K BLOOM K BROWDER TE CASSEL DG CHO HA COFFMAN DM DRELL PS EHRLICH R GARCIASCIVERES M GEISER B GITTELMAN B GRAY SW HARTILL DL HELTSLEY BK JONES CD JONES SL KANDASWAMY J KATAYAMA N KIM PC KREINICK DL LUDWIG GS MASUI J MEVISSEN J MISTRY NB NG CR NORDBERG E PATTERSON JR PETERSON D RILEY D SALMAN S SAPPER M WURTHWEIN F AVERY P FREYBERGER A RODRIGUEZ J STEPHENS R YANG S YELTON J CINABRO D HENDERSON S LIU T SAULNIER M WILSON R YAMAMOTO H

Citation

T. Bergfeld et al., STUDY OF THE DECAY LAMBDA(C+)-]LAMBDA-L+NU(L), Physics letters. Section B, 323(2), 1994, pp. 219-226

Citations number

Categorie Soggetti

Physics

Journal title

Physics letters. Section B → ACNP

ISSN journal

03702693

Volume

323

Issue

Year of publication

1994

Pages

219 - 226

Database

ISI

SICI code

0370-2693(1994)323:2<219:SOTDL>2.0.ZU;2-S

Abstract

Using the CLEO II detector at CESR we observe 500 LAMBDAl+ pairs consi stent with the semileptonic decay LAMBDA(c)+ --> LAMBDAl+ nu(l). We me asure sigma (e+e- --> LAMBDA(c)+ X) . B (LAMBDA(c)+ --> LAMBDAl+nu(l)) = 4.77 +/- 0.25 +/- 0.66 pb. Combining with the charm semileptonic wi dth and the lifetime of the LAMBDA(c) we also obtain B (LAMBDA(c)+ --> pK- pi+). We find no evidence for LAMBDAl + nu(l) final states in whi ch there are additional LAMBDA(c)+ decay products. We measure the deca y asymmetry parameter of LAMBDA(c)+ --> LAMBDAe+nu(e) to be alpha(LAMB DAc) = -0.89(+0.17/-0.11) +0.09/-0.05.