EVIDENCE FOR PENGUIN-DIAGRAM DECAYS - 1ST OBSERVATION OF B -] K-ASTERISK(892)GAMMA

Authors
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 SEVERINI H SUN CR ZOELLER MM CRAWFORD G DAUBENMEIR M FULTON R FUJINO D GAN KK HONSCHEID K 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 FAST 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 DOMINICK J SANGHERA S SKWARNICKI T STROYNOWSKI R ARTUSO M HE D GOLDBERG M HORWITZ N KENNETT 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 SHELDON P 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 ONG B PAAR H SIVERTZ M BEAN A GRONBERG J KUTSCHKE R MENARY S MORRISON RJ NAKANISHI S NELSON HN NELSON TK RICHMAN JD RYD A TAJIMA H SCHMIDT D SPERKA D WITHERELL MS PROCARIO M YANG S BALEST R CHO K 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 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 OGG M PATTERSON JR PETERSON D RILEY D SALMAN S SAPPER M WORDEN H WURTHWEIN F AVERY P FREYBERGER A RODRIGUEZ J STEPHENS R YELTON J CINABRO D HENDERSON S KINOSHITA K LIU T SAULNIER M SHEN F WILSON R YAMAMOTO H SELEN M SADOFF AJ
Citation
R. Ammar et al., EVIDENCE FOR PENGUIN-DIAGRAM DECAYS - 1ST OBSERVATION OF B -] K-ASTERISK(892)GAMMA, Physical review letters, 71(5), 1993, pp. 674-678
Citations number
28
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
71
Issue
5
Year of publication
1993
Pages
674 - 678
Database
ISI
SICI code
0031-9007(1993)71:5<674:EFPD-1>2.0.ZU;2-I
Abstract
We have observed the decays B0 --> K(892)0gamma and B- --> K*(892)-ga mma, which are evidence for the quark-level process b --> sgamma. The average branching fraction is (4.5 +/- 1.5 +/- 0.9) x 10(-5). This val ue is consistent with standard model predictions from electromagnetic penguin diagrams.