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Your life with CLEO + BTEV

Your life with CLEO + BTEV. GSAC: Mats Selen, February 24, 2001. The bottom line: We are a small, friendly, well supported group of particle physicists. We work on a variety of interesting physics topics.

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Your life with CLEO + BTEV

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  1. mats@uiuc.edu Your life with CLEO + BTEV GSAC: Mats Selen, February 24, 2001 The bottom line: • We are a small, friendly, well supported group of particle physicists. • We work on a variety of interesting physicstopics. • We contribute significantly to the design & construction of detectors and electronics. I am looking for (~2) enthusiastic students that like to roll up their sleeves & dive into some fascinating work.

  2. mats@uiuc.edu CLEO

  3. c e- e+ c Hadronization(QCD) D, DS, D*... mats@uiuc.edu DS* and DS Fragmentation and PV Johnson, Selen (graduated July/00) • Try to understand charm production • Momentum distributions • Spin states

  4. .50<x<.56 .44<x<.50 .56<x<.62 .62<x<.68 .74<x<.80 .68<x<.74 .86<x<.92 .80<x<.86 .92<x<.98 .92<x<1 mats@uiuc.edu DS* and DS Fragmentation and PV • Ds Yields as a function of x(Ds)

  5. mats@uiuc.edu DS* and DS Fragmentation and PV • Comparison with Andersson model using parameters found by previous measurement

  6. mats@uiuc.edu DS* and DS Fragmentation and PV Just counting spins we would expect PV = V / (V + P) = 3/4 + - V (J=1) P (J=0) PV = 0.45  0.05 Other experiments:

  7. mats@uiuc.edu D0  K-+0Resonant Substructure Bergfeld, Selen c Hadronization(QCD) (graduated May/00) • Try to understand charm decay • Resonant substructure • QM Interference p0 D0 g g p+ K-

  8. mats@uiuc.edu D0  K-+0 Locations of resonances in the Dalitz Plot and projections r+K*0K*- Non-Resonant

  9. M(p+p0)2 (GeV2) M(K-p+)2 (GeV2) D0  K-+0 mats@uiuc.edu Final Best Fit with Seven Resonances r+ K*0 K*- Non-Resonant K0(1430)- K0(1430)0 K*(1680)-r’+

  10. D*+ n D0 D0 mix e- mixed p+ K+ D*+ n D0 Un-mixed e+ p+ K- mats@uiuc.edu D0 mixing using D0K+e-n Sedlack, Selen Using “neural net” techniques

  11. l b B c D* n mats@uiuc.edu B0  D*ln and Vcb Plager, Selen Last CLEO result: PRD 51, 1014 (1995) q2max This is where the money is (q2max) !

  12. mats@uiuc.edu

  13. mats@uiuc.edu BTeV • B meson decays can tell us a lot about the Standard Model (and beyond), but we need more data. • For the next 5 years, B physics will be dominated by BaBar (SLAC), Belle (KEK) and CDF/D0 (FNAL). • BTEV is a new experiment (ready in 5 years) that will dominate B physics in the LHC era. • BTEV will collect more useable B data in a few days than the e+e- “B Factories” do in a year. • Motivation:

  14. mats@uiuc.edu BTeV • Present knowledge: : Angles Sides :

  15. Central BTEV BTEV mats@uiuc.edu BTeV Why forward? • Boost • B-B Correlation Boost: Key for triggering Key for large dataset!

  16. mats@uiuc.edu Your life with CLEO + BTEV If you work with me you will: • Do a physics analysis (of your choice) using CLEO data. (i.e. no waiting). • Work on BTEV trigger & Data Acquisition electronics. • Provide a significant contribution to both experiments (many people will know about you & your work). • You will be able to market yourself in both academics and industry.

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