Two measurements of B0 B-0 mixing

We have measured the B0B¯0 mixing probability, χd, using a sample of 965 000 BB¯ pairs from Υ(4S) decays. Counting dilepton events, we find χd=0.157±0.016±0.018+0.028−0.021. Using tagged B0 events, we find χd=0.149±0.023±0.019±0.010. The first (second) error is statistical (systematic). The third er...

Full description

Saved in:
Bibliographic Details
Main Authors: BARTELT, J., THULASIDAS, Manoj
Format: text
Language:English
Published: Institutional Knowledge at Singapore Management University 1993
Subjects:
Online Access:https://ink.library.smu.edu.sg/sis_research/3669
https://ink.library.smu.edu.sg/context/sis_research/article/4671/viewcontent/p1680_1.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Singapore Management University
Language: English
Description
Summary:We have measured the B0B¯0 mixing probability, χd, using a sample of 965 000 BB¯ pairs from Υ(4S) decays. Counting dilepton events, we find χd=0.157±0.016±0.018+0.028−0.021. Using tagged B0 events, we find χd=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 events. We also obtain a limit on the CP impurity in the B0d system, ‖Re(ε0B)‖