Beste collega's,

Today our preprint is available. For a nice example of Sardinian-Bavarian collaboration, please have a look here! http://arxiv.org/abs/1004.3982

Cheers, Nicola, Niels & Robert

---------- Forwarded message ---------- Date: Fri, 23 Apr 2010 09:44:46 +0200 From: Nicola nicola.serra@cern.ch To: "lhcb-phys-bsmumu (E-mail list of the people involved in the analysis of t he...)" lhcb-phys-bsmumu@cern.ch Cc: Frederic Teubert Frederic.Teubert@cern.ch, Gaia Lanfranchi Gaia.Lanfranchi@lnf.infn.it, Ulrik Egede u.egede@imperial.ac.uk, Guy Wilkinson Guy.Wilkinson@cern.ch, Robert Fleischer Robert.Fleischer@nikhef.nl, Niels Tuning h71@nikhef.nl Subject: New method for improving on fd/fs

Dear all,

We have been thinking how we could improve our major limitation in the Bs->mumu analysis, namely the knowledge on fd/fs. We looked for theoretically clean Bd and Bs decays, so that by measuring the number of events, and by knowing the branching ratios we can accurately determine fd/fs.

For more details, we would like to bring the preprint to your attention, http://arxiv.org/abs/1004.3982

Cheers, Nicola, Niels and Robert