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- W1601433458 abstract "Based on an 87-fb{sup -1} dataset collected by the Babar detector at the PEP-II asymmetric-energy B-Factory, a search for D{sup 0}-{bar D}{sup 0} mixing has been made using the semileptonic decay modes D*{sup +} {yields} {pi}{sup +}D{sup 0}, D{sup 0} {yields} Ke{nu} (+c.c.). The use of these modes allows unambiguous flavor tagging and a combined fit of the D{sup 0} decay time and D*{sup +}-D{sup 0} mass difference ({Delta}M) distributions. The high-statistics sample of unmixed semileptonic D{sup 0} decays is used to model the {Delta}M distribution and time-dependence of mixed events directly from the data. Neural networks are used to select events and reconstruct the D{sup 0}. A result consistent with no charm mixing has been obtained, R{sub mix} = 0.0023 {+-} 0.0012 {+-} 0.0004. This corresponds to an upper limit of R{sub mix} < 0.0042 (90% CL)." @default.
- W1601433458 created "2016-06-24" @default.
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- W1601433458 date "2005-11-02" @default.
- W1601433458 modified "2023-09-23" @default.
- W1601433458 title "A Search for the Decay B+ ---> Tau+ Nu/Tau at BaBar" @default.
- W1601433458 hasPublicationYear "2005" @default.
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