OBSERVATION OF 2 EXCITED CHARMED BARYONS DECAYING INTO LAMBDA(+)(C)PI(+ -)/

Authors
BRANDENBURG G BRIERE RA KIM DYJ LIU T SAULNIER M WILSON R YAMAMOTO H BROWDER TE LI F LI Y RODRIGUEZ JL BERGFELD T EISENSTEIN BI ERNST J GLADDING GE GOLLIN GD JOHNSON E KARLINER I PALMER M SELEN M THALER JJ EDWARDS KW BELLERIVE A BRITTON DI JANICEK R MACFARLANE DB MCLEAN KW PATEL PM SADOFF AJ AMMAR R BARINGER P BEAN A BESSON D COPPAGE D DARLING C DAVIS R HANCOCK N KOTOV S KRAVCHENKO I KWAK N ANDERSON S KUBOTA Y LATTERY M ONEILL JJ PATTON S POLING R RIEHLE T SMITH A SAVINOV V ALAM MS ATHAR SB LING Z MAHMOOD AH SEVERINI H TIMM S WAPPLER F ANASTASSOV A BLINOV S DUBOSCQ JE FULTON R FUJINO D GAN KK HART T HONSCHEID K KAGAN H KASS R LEE J SUNG M UNDRUS A WANKE R WOLF A ZOELLER MM NEMATI B RICHICHI SJ ROSS WR SKUBIC P WOOD M BISHAI M FAST J GERNDT E HINSON JW MILLER DH SHIBATA EI SHIPSEY IPJ YURKO M GIBBONS L JOHNSON SD KWON Y ROBERTS S THORNDIKE EH JESSOP CP LINGEL K MARSISKE H PERL ML SCHAFFNER SF UGOLINI D WANG R ZHOU X COAN TE FADEYEV V KOROLKOV I MARAVIN Y NARSKY I SHELKOV V STROYNOWSKI R STAECK J VOLOBOUEV I YE J ARTUSO M EFIMOV A GAO M GOLDBERG M GREENE R FRASCONI F HE D KOPP S MONETI GC MOUNTAIN R MUKHIN Y SCHUH S SKWARNICKI T STONE S XING X BARTELT J CSORNA SE JAIN V MARKA S FREYBERGER A GODANG R GIBAUT D KINOSHITA K LAI IC POMIANOWSKI P SCHRENK S BONVICINI G CINABRO D PERERA L BARISH B CHADHA M CHAN S EIGEN G MILLER JS OGRADY C SCHMIDTLER M URHEIM J WEINSTEIN AJ WURTHWEIN F ASNER DM BLISS DW BROWER WS MASEK G PAAR HP GRONBERG J KORTE CM LANGE DJ 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 BEHRENS BH CHO K FORD WT 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 EHRLICH R ELIA R FOLAND AD GAIDAREV P GITTELMAN B GRAY SW HARTILL DL HELTSLEY BK HOPMAN PI 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 OGG M PATTERSON JR PETERSON D RILEY D SOFFER A WARD C AVERY P ATHANAS M JONES CD LOHNER M PRESCOTT C YANG S YELTON J ZHENG J
Citation
G. Brandenburg et al., OBSERVATION OF 2 EXCITED CHARMED BARYONS DECAYING INTO LAMBDA(+)(C)PI(+ -)/, Physical review letters, 78(12), 1997, pp. 2304-2308
Citations number
29
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
12
Year of publication
1997
Pages
2304 - 2308
Database
ISI
SICI code
0031-9007(1997)78:12<2304:OO2ECB>2.0.ZU;2-R
Abstract
Using data recorded by the CLEO-II detector at CESR, we report evidenc e of a pair of excited charmed baryons, one decaying into Lambda(c)(+) pi(+)2 and the other into Lambda(c)(+)pi(-). The doubly charged state has a measured mass difference M(Lambda(c)(+)pi(+)) - M(Lambda(c)(+)) of 234.5 +/- 1.1 +/- 0.8 MeV/c(2) and a width of 17.9(-3.2)(+3.8) +/- 4.0 MeV/c(2), and the neutral state has a measured mass difference M(L ambda(c)(+)pi(-)) - M(Lambda(c)(+)) of 232.6 +/- 1.0 +/- 0.8 MeV/c(2) and a width of 13.0(-3.0)(+3.7) +/- 4.0 MeV/c(2). We interpret these d ata as evidence of the Sigma(c)8(++) and Sigma c(0), the spin 3/2(+) excitations of the Sigma(c) baryons.