Published B Hadron Lifetimes from CDF

tex2html_wrap_inline123 and tex2html_wrap_inline125

From the analysis of the full Run 1 data set (integrated luminosity of tex2html_wrap_inline127 collected during 1992-1996) the exclusive signals from tex2html_wrap_inline129 and tex2html_wrap_inline131 yield


tabular10

The first error is the statistical error and the second error is the systematic error. This result has been published: The CDF Collaboration, F. Abe et al., Phys.Rev. D57, 5382 (1998).

From the analysis of partially reconstructed tex2html_wrap_inline143 decays, there is a published result from the analysis of Run 1a data (integrated luminosity of tex2html_wrap_inline145 collected during 1992-1993): The CDF Collaboration, F. Abe et al., Phys.Rev.Lett. 76 (1996) 4462. The analysis of the full Run 1 data set (integrated luminosity of tex2html_wrap_inline147 collected during 1992-1996) yields:


tabular25

This result has been published: The CDF Collaboration, F. Abe et al., Phys.Rev. D58, 092002 (1998).

The combination of the above two results using exclusive and partially reconstructed B decays yields


tabular39

The error is the sum of statistical and systematic errors, where the correlated systematic errors are taken into account.

tex2html_wrap_inline163

From the analysis of the full Run 1 data set (tex2html_wrap_inline165), the exclusive signal tex2html_wrap_inline167 yields: tex2html_wrap_inline169 (signal = tex2html_wrap_inline171). This result has been published: The CDF Collaboration, F. Abe et al., Phys.Rev.Lett. 77, 1945 (1996), and Phys.Rev. D57, 5382 (1998).

From the analysis of the partially reconstructed decay mode tex2html_wrap_inline173, with using the full Run 1 data set (tex2html_wrap_inline175), we have a result using four tex2html_wrap_inline177 decay modes, tex2html_wrap_inline179 (signal tex2html_wrap_inline181). This result has been published: The CDF Collaboration, F. Abe et al., Phys.Rev. D59, 032004 (1999).

No combination of the lifetime from the exclusive mode and partially reconstructed mode has been made. Using the average CDF tex2html_wrap_inline183 lifetime and the tex2html_wrap_inline185 lifetime from semileptonic decays, we determined the CDF average tex2html_wrap_inline187 lifetime ratio to be tex2html_wrap_inline189 The error is the sum of statistical and systematic errors, where the correlated systematic errors are taken into account.

tex2html_wrap_inline191 Baryons (tex2html_wrap_inline193)

From the analysis of partially reconstructed tex2html_wrap_inline195, with tex2html_wrap_inline197, using the full Run 1 data (tex2html_wrap_inline199), we obtain: tex2html_wrap_inline201 (signal = tex2html_wrap_inline203). This result has been published: The CDF Collaboration, F. Abe et al., Phys.Rev.Lett. 77 (1996) 1439.

tex2html_wrap_inline205

From the analysis of partially reconstructed tex2html_wrap_inline207, with tex2html_wrap_inline209, tex2html_wrap_inline211, using the full Run 1 data (tex2html_wrap_inline213), we obtain: tex2html_wrap_inline215 (signal tex2html_wrap_inline217).

This result has been published: The CDF Collaboration, F. Abe et al., Phys.Rev.Lett. 81, 2432 (1998), and F. Abe et al., Phys.Rev. D58, 112004 (1998).

tex2html_wrap_inline219 Inclusive B Hadron Lifetime

From the analysis of tex2html_wrap_inline223 using the Run 1 data set (tex2html_wrap_inline225), we have obtained: tex2html_wrap_inline227. This result has been published: The CDF Collaboration, F. Abe et al., Phys.Rev. D57, 5382 (1998).

tex2html_wrap_inline229 Summary

This Figure shows a compilation of CDF's B hadron lifetime measurements. The same Figure without the tex2html_wrap_inline233.

A postscript file of this summary can be obtained here.

(Last update June 24, 1999 )



CDF B Physics Group