Diego Tonelli Fermilab - for the CDF and DØ collaborations

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Presentation transcript:

Diego Tonelli Fermilab - for the CDF and DØ collaborations Tevatron THE RUN II Diego Tonelli Fermilab - for the CDF and DØ collaborations Ferrara - March 20, 2009 Diego Tonelli, CDF

When Run II will be terminated? Tevatron reach in key flavor measurement assuming to run through 2011. Not even 2010 is officially approved. 2011 probably being discussed with funding agencies. My take: very unlikely NOT to have 2010 running. Too early for any statement on 2011. Also: note that funding comes in “fiscal years”, (FY) - October to September - and so are projected sample sizes. Ferrara - March 20, 2009 Diego Tonelli, CDF

Data extrapolations 6/fb by Oct09 8/fb Oct10 10/fb Oct11 Plot shows “delivered” data. Multiply by 80% to know size of physics-quality samples. Allow 1-2 years after collection for results of analysis Actual performance is following the red curve: 2/fb of quality-data per year: 6/fb by Oct09 8/fb Oct10 10/fb Oct11 Ferrara - March 20, 2009 Diego Tonelli, CDF

Total (CDF+D0) integrated luminosity B0s+- No improvements assumed <210-8 (5SM) at 10/fb per experiment. Combined: 3-4SM. Near to closing up the SUSY-allowed space. Remaining range promising for observation Improvements in progress CDF: recover +20% acceptance. DØ working on adding single-muon trigger Integrated Lumi/experiment (fb-1) 2011 here Total (CDF+D0) integrated luminosity Ferrara - March 20, 2009 Diego Tonelli, CDF

bs+- Extrapolate to 10/fb yields observed in 1/fb. 150-200 B0K* in 10/fb (CDF only) 50-100 B0s in 10/fb - first observation already at 5/fb (CDF only) Ferrara - March 20, 2009 Diego Tonelli, CDF

Relative uncertainty on ACP(B0sK-+) B0(s)h+h’- R = (1/fb) = 1 in the SM R~15% (stat) in 2011 10% on direct ACP in B0sK-+ <1% on direct ACP in B0K+- Will extract  at loop-level from time-dependent analysis of B0sK+K- Relative uncertainty on ACP(B0sK-+) Ferrara - March 20, 2009 Diego Tonelli, CDF

Probability of 5 observation B0s mixing-phase % of CDF+DØ ‘clones’ that would observe a 5-effect, as a function of s Assumptions s = 0.1 ps-1 Constant data-taking efficiency No analysis improvements. No external constraints (ASL, lifetimes) used. Probability of 5 observation Current observed value --- 8/fb (2010) s Future will be better than that. --- 6/fb (2009) Ferrara - March 20, 2009 Diego Tonelli, CDF

Charm mixing CDF 10-20M. World’s largest samples. Longer level-arm in lifetime than B-factor. - no experiment has yet obtained a 5 observation; may observe CPV in charm sector for 1st time; sensitivity to the quadratic term (x’2) thanks to long lever-arm; - may provide best determinations of D0 mix parameters for years to come. Ferrara - March 20, 2009 Diego Tonelli, CDF

Discussion Ferrara - March 20, 2009 Diego Tonelli, CDF