1 / 15

Backup Slides

Backup Slides. David Doll. Beyond SM theories. Mark Wise paper. BBU starting point and expansion. Look at 2.24 and 2.26 to see difference between kinetic and pole scheme in hep -ph/0607316. Former Analysis extended. Novosibirsk function: Argus function:. Source Babar doc. where:.

trapper
Download Presentation

Backup Slides

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Backup Slides David Doll

  2. Beyond SM theories

  3. Mark Wise paper

  4. BBU starting point and expansion • Look at 2.24 and 2.26 to see difference between kinetic and pole scheme in hep-ph/0607316

  5. Former Analysis extended • Novosibirsk function: • Argus function: Source Babar doc where: m0 is peak position, σ is width, τ is tail parameter Source Phys. Lett. B 241, 278 (1990) where a and b are parameters to be fit

  6. Y(3S) and Such Properties • Width = 20.5 +/- 2.5 MeV (hbar = 6.58 x 10^-16 eVs) • Liftime = 3.2 x 10 ^-23 s • BBbar decay > 96% of the time (PDG)

  7. SVT Extended • Best angular information comes from inner points, not subject to multiple scattering. • Particles with p_t less than 100MeV/c don’t make the drift chamber, and only with p_t > 120 MeV/c is the drift chamber reliable. • Goal of 70% eff. In tracking information for 50-120 MeV/c particles • Coverage is between 20.1 and 150.2 degrees. • 5 Layers, double sided, inside (junction side) measures z, outside measures phi for first 3 layers, opposite for last 2. • ~150,000 channels • Inner 3 layers for measuring impact parameters, outer two for pattern recognition and low p_t tracking.

  8. SVT Extended • dE/dx formula for charged particles (from infn): Bethe-Bloch formula MC simulation of SVT (source Babar doc).

  9. DCH Extended • AUVAUVAUVA arrangement of the superlayers (10), each consisting of 4 layers. • Axial (A) and stereo (U,V) • 1.08%X0 at normal incidence • dE/dx from ionization loss

  10. DIRC extended • Cherenkov Angle relation: • Forward end has a mirror to reflect forward propagating photons • Index of refraction for fused silica = 1.473

  11. EMC extended • 15.8 to 141.8o polar angle coverage (90% CM coverage) • Energy resolution described empirically by: • where a represents fluctuations in photon statistics and electronic noise, and b, constant term, comes from non-uniformity in light collection, influence of material in front, and calibration uncertainty • Ultimately, a = 2.32% and b = 1.85% Radiation length, corresponding to the length for an electron to drop to 1/e it’s energy, or 7/9 the mean free path for pair production of a photon.

  12. EMC Extended • Source photon for low energy calibration from the process: 19F + n →16N + α, 16N →16O* + β, 16O*→ 16O + γ

  13. IFR Extended • 21 active detector layers in the barrel, 18 in the endcaps • Bakelite sheet bulk resistivity is 10^11 – 10^12 ohm cm • Gas: 56.7% Argon, 38.8% Freon 134a, and 4.5% isobutane • Graphite surfaces connected to ~8kV and ground.

  14. IFR Extended • LST

  15. PunziFOM extended

More Related