A study of charm production in beauty decays with the OPAL detector at LEP
The OPAL collaboration, G. Abbiendi, et al
TL;DR
This paper measures the branching ratio of beauty quarks decaying into charm pairs in Z^0 decays using the OPAL detector, providing insights into charm production mechanisms in heavy quark decays.
Contribution
It introduces an inclusive method to measure charm production in beauty decays and determines the average charm quark yield per beauty decay.
Findings
Measured BR(b -> Dar{D}X) in hadronic Z^0 decays.
Estimated the average number of charm quarks per beauty decay, n_c.
Demonstrated the effectiveness of impact parameter significance in decay differentiation.
Abstract
Using an inclusive method, BR(b -> D\bar{D}X) has been measured in hadronic Z^0 decays with the OPAL detector at LEP. The impact parameter significance of tracks opposite tagged b-jets is used to differentiate b -> D\bar{D}X decays from other decays. Using this result, the average number of charm and anti-charm quarks produced per beauty quark decay, n_c, is determined.
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