Abstract
We have measured the forward-backward asymmetry in Z0→bb decays using hadronic events containing muons and electrons. The data sample corresponds to 118 200 hadronic events at √s≈Mz. From a fit to the single and dilepton p and P⊥ spectra, we determine Abb=0.130-0.042 +0.044 including the correction for B0-B0 mixing.
| Original language | English |
|---|---|
| Pages (from-to) | 713-721 |
| Number of pages | 9 |
| Journal | Physics Letters B |
| Volume | 252 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 27 1990 |
| Externally published | Yes |
Funding
a European Laboratory for Particle Physics, CERN, CH-1211 Geneva 23, Switzerland b INFN-Sezione di Firenze and University of Florence, 1-50125 Florence, Italy Centro de lnvestigaciones Energeticas. Medioambientales y Tecnologicas. CIEMAT, E-28040 Madrid. Spain d Johns Hopkins University, Baltimore, MD 21218, USA INFN-Sezione di Napoli and University of Naples, 1-80125 Naples, Italy f Northeastern University, Boston, MA 02115, USA World Laboratory, FBLJA Project, CH-1211 Geneva, Switzerland h Eidgen6ssische Technische Hochschule, ETH Ziirich, CH-8093 Zurich, Switzerland i Massachusetts Institute of Technology, Cambridge, MA 02139, USA J Leningrad Nuclear Physics Institute, SU-188 350 Gatchina, USSR k Central Laboratory of Automation and Instrumentation, CLANP, Sofia, Bulgaria INFN - Sezione di Bologna, 1-40126 Bologna, Italy m Institute of Theoretical and Experimental Physics, ITEP, SU-117 259 Moscow, USSR " University of Michigan, Ann Arbor, M148109, USA ° Tata Institute of Fundamental Research, Bombay 400 005, India P INFN-Sezione di Roma and University of Rome "'La Sapienza", 1-00185 Rome, Italy q Princeton University, Princeton, NJ 08544, USA r Union College, Schenectady, NY 12308, USA University of Geneva, CH-1211 Geneva 4, Switzerland t Laboratoire de Physique des Particules, LAPP, F-74519 Annecy-le-Vieux, France u CentralResearch Institute for Physics of the Hungarian Academy of Sciences, H-1525 Budapest 114, Hungary L Physikalischeslnstitut, RWTH, W-51OOAachen, FRG and III. Physikalisches Institut, R WTH, W-5100 Aachen, FRG w National Institute for High Energy Physics, N1KHEF, NL-IO09 DB Amsterdam, The Netherlands and NIKHEF-H and University of Nijmegen, NL-6525 ED Nijmegen, The Netherlands x Paul Scherrer lnstitut (PS1), Wiirenlingen, Switzerland Y University of Lausanne, CH-1015 Lausanne, Switzerland z University of California, San Diego, CA 92182, USA an Carnegie MeUon University, Pittsburgh, PA 15213, USA ab lnstitut de Physique NuclOaire de Lyon, 1N2P3-CNRS/Universitk Claude Bernard, F-69622 Villeurbanne Cedex, France a~ Purdue University, West Lafayette, IN 47907, USA ~a University of Alabama, Tuscaloosa, AL 35486, USA ~ Lawrence Livermore National Laboratory, Livermore, CA 94550, USA ~f High Energy Physics Group, Taiwan, Rep. China ~g Institute of High Energy Physics, IHEP, Beijing, P.R. China ah Chinese University of Science and Technology, USTC, Hefei, Anhui 230 029, P.R. China ~i California Institute of Technology, Pasadena, CA 91125, USA aj Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA ak High Energy Physics Institute, 0-1615 Zeuthen-Berlin, FRG ~ Shanghai Institute of Ceramics, SIC, Shanghai, P.R. China am LOS Alamos National Laboratory, Los Alamos, NM 87544, USA an Harvard University, Cambridge, MA 02139, USA no University of Hamburg, W-2000 Hamburg, FRG