Elsevier

Physics Letters B

Volume 240, Issues 1–2, 19 April 1990, Pages 289-296
Physics Letters B

A reanalysis of B0-B̄0 mixing in e+e annihilation at 29 GeV

https://doi.org/10.1016/0370-2693(90)90447-EGet rights and content

Abstract

Data taken by the Mark II detector at the PEP storage ring was used to measure the rate of dilepton production in multihadronic events produced by e+e annihilation at √s=29 GeV. We determine the probability that a hadron initially containing a b (b̄) quark decays to a positive (negative) lepton to be 0.17−0.08+0.15, with 90% confidence level limits of 0.06 and 0.38.

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1

Present address: Cornell University, Ithaca, NY 14853, USA.

2

Present address: Universidad Autónoma de Barcelona, Bellaterra, Spain.

3

Present address: University od Chicago, Chicago, IL 60637, USA.

4

Present address: Harvard University, Cambridge, MA 02138, USA.

5

Present address: Centre de Recherches Nucléaires, F-67037 Strasbourg, France.

6

Present address: University of Oklahoma, Norman, OK 73019, USA.

7

Present address: Universitat Politecnica de Catalunya, ETSEIB-DEN Barcelona, Spain.

8

Present address: University of Pennsylvania, Philadelphia, PA 19104, USA.

9

Present address: O'Conner and Associates, Chicago, IL 60604, USA.

10

Present address: CERN, CH-1211 Geneva 23, Switzerland.

11

Present address: Brookhaven National Laboratory, Upton, NY 11973, USA.

12

Present address: Fermilab, Batavia, IL 60510, USA.

13

Present address: Laboratoire de l'Accélérateur, Linéaire, F-91405 Orsay, France.

14

Present address: Columbia University, New York, NY 10027, USA.

15

Present address: Carleton University, Ottawa, Ontario, Canada K1S 5B6.

16

Boston University, Boston, MA 02215, USA.

17

Present address: University of Wisconsin, Madison, WI 53706, USA.

18

Present address: Laboratorium für Hochenergie Physik Bern, CH-3012 Bern, Switzerland.

19

Present address. SCS, Hamburg, FRG.

20

Present address: SLAC, Stanford, CA 94309, USA.

21

Present address: Max-Planck Institut, D-8000 Munich, FRG.

22

Present address: University of Illinois, Urbana, UL 61801, USA.

23

Present address: Princeton University, Princeton, NJ 08544, USA.

24

Present address: University of California, Berkeley, CA 94720, USA.

25

Present address: University of Tennessee, Knoxville, TN 37996, USA.

26

Present address: University of Florida, Gainesville, FL 32611, USA.

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