OBSERVATION OF AN EXCITED CHARMED BARYON DECAYING INTO XI(C)(0)PI(+)

Authors
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 K 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 LJ 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 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
Citation
L. Gibbons et al., OBSERVATION OF AN EXCITED CHARMED BARYON DECAYING INTO XI(C)(0)PI(+), Physical review letters, 77(5), 1996, pp. 810-813
Citations number
13
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
77
Issue
5
Year of publication
1996
Pages
810 - 813
Database
ISI
SICI code
0031-9007(1996)77:5<810:OOAECB>2.0.ZU;2-T
Abstract
Using data recorded by the CLEO II detector at the Cornell Electron St orage Ring, we report the first observation of an excited charmed bary on decaying into Xi c(0) pi(+). The state has mass difference M(Xi(c)( 0) pi(+)) - M(Xi(c)(0)) of 174.3 +/- 0.5 +/- 1.0 MeV/c(2), and a width of <3.1 MeV/c(2) (90% confidence level limit). We identify the new st ate as the Xi(c)(+), the isospin partner of the recently discovered X i(c)(0).