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LHCf Run status at 7TeV collisions

LHCf Run status at 7TeV collisions. Takashi Sako (Plots: K.Taki , H.Menjo ). LPC meeting 12-Apr-2010 . Arm1 Arm2. (x100). Shower. 6,300 2,200. Pi-zero (x100). Statistics during stable beams. (Always first 10min is lost for the detector movement). B1 trimmed - 0.076mm.

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LHCf Run status at 7TeV collisions

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  1. LHCf Run status at 7TeV collisions Takashi Sako (Plots: K.Taki, H.Menjo) LPC meeting 12-Apr-2010

  2. Arm1Arm2 (x100) Shower 6,300 2,200 Pi-zero (x100)

  3. Statistics during stable beams (Always first 10min is lost for the detector movement)

  4. B1 trimmed - 0.076mm B1/B2 trimmed +/- 0.037mm Blue: X Horizontal Red: Y Vertical

  5. 7TeV preliminary results Data only during the stable beam on 31 March 0 degree off center (neutral center)

  6. 900GeV results • ~70% analyzed • Corrected bunch intensity to be included • More (x2, x3) statistics appreciated

  7. Run plan for a next month • Finish configuration (gain, threshold, latency) survey soon • Accumulate 104 pi-zero with the default setup (200 hours with the current luminosity) • Accumulate 104 pi-zero at 2-3 different detector positions for PT survey (procedure to be discussed with ATLAS) • Hope double/triple the 900GeV statistics • Start Xing angle run to enlarge the PT coverage • Studying intermediate beam energy 1.5-2.0 TeV

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