2 MEASUREMENTS OF B(0)(B)OVER-BAR-0 MIXING

Authors
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 GALIK RS 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 WORRIS M WURTHWEIN F AVERY P FREYBERGER A RODRIGUEZ J STEPHENS R YELTON J CINABRO D HENDERSON S KINOSHITA K LIU T SAULNIER M WILSON R YAMAMOTO H SELEN M SADOFF AJ 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 ROMERO V 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
Citation
J. Bartelt et al., 2 MEASUREMENTS OF B(0)(B)OVER-BAR-0 MIXING, Physical review letters, 71(11), 1993, pp. 1680-1684
Citations number
15
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
71
Issue
11
Year of publication
1993
Pages
1680 - 1684
Database
ISI
SICI code
0031-9007(1993)71:11<1680:2MOBM>2.0.ZU;2-M
Abstract
We have measured the B0B0BAR mixing probability, chi(d), using a sampl e of 965000 BBBAR pairs from UPSILON(4S) decays. Counting dilepton eve nts, we find chi(d) = 0.157 +/- 0.016 +/- 0.018(-0.021)+0.028. Using t agged B0 events, we find chi(d) = 0.149 +/- 0.023 +/- 0.019 +/- 0.010. The first (second) error is statistical (systematic). The third error reflects a +/- 15% uncertainty in the assumption, made in both cases, that charged and neutral B pairs contribute equally to dilepton event s. We also obtain a limit on the CP impurity in the B(d)0 system, \Re( epsilon(B)0)\ < 0.045 at 90% C.L.