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Particle Physics Research Opportunities with Mats Selen

Join our friendly particle physics group, work on interesting topics, and contribute to detector design. Seeking enthusiastic students to dive into fascinating work. Analyze CLEO data and work on BTEV electronics. Market yourself in academia and industry.

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Particle Physics Research Opportunities with Mats Selen

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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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