1. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos1 HERA and the LHC K. Goulianos The Rockefeller University CERN 17-19 January 2005 (talk delivered by video)

2. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos2 Thanks! Many thanks to Michele Gallinaro

3. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos3 Run-I,0 (1988-89) Elastic, single diffractive, and total cross sections @ 546 and 1800 GeV Roman Pot Spectrometers Roman Pot Detectors  Scintillation trigger counters  Wire chamber  Double-sided silicon strip detector Results PRD 50 (2004) 5518; 5535; 5550  Total cross section  tot ~ s   Elastic cross section d  /dt ~ exp[2  ’ ln s ]  shrinking forward peak  Single diffraction Breakdown of Regge factorization Additional Detectors Trackers up to |  | = 7

4. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos4 CDF-I Run-ICRun-IA,B Forward Detectors BBC 3.2<  <5.9 FCAL 2.4<  <4.2 1992-1996

5. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos5 CDF-I Roman Pot Spectrometer 3 trigger counters 3x[2X(20+20)]=240 channels Hosai Nakada – thesis http://hep-www.px.tsukuba.ac.jp/research/thesis_d.html Fiber width: 800 

6. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos6 CDF Run I results 93(2004)141601

7. February 23, 2004CDF Internal Review7 Run-II Diffraction @ CDF CDF Forward Detectors MiniPlug calorimeters (3.5<  <5.5) Beam Shower Counters (5.5<  <7.5) Antiproton Roman Pot Spectrometer 2001-

8. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos8 M. Gallinaro @ http ://arxiv.org/abs/hep-ph/0407255 Run-II Forward Detectors

9. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos9 MiniPlug Run -II Data ADC counts in MiniPlug towers in a pbar-p event at 1960 GeV. “jet” indicates an energy cluster and may be just a hadron. Approximately 1000 counts = 1 GeV Multiplicity distribution in SD and ND events MiniPlug tower structure

10. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos10 Diffractive Dijets ND+SD & SD+MB overlap events  ~ 1 SD events Flat region

11. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos11 Run II Roman Pot Tracking

12. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos12 Calibration of RP position t=0 t=-0.5 fixed  x pbar z xx Method Adjust  x to get the steepest t distribution

13. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos13 Roman Pot Distributions edge effect

14. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos14 Determining  x from data Method: maximize the t=0 value of d  /dt

15. CERN 17-19 Jan 2005Alignment of CDF Run II Roman Pots K. Goulianos15 HERA &Tevatron->LHC p IP