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Last checks of pp 62 FS A.Qviller. Settings 2A/B1723 and 3A/B 1723 are analysed with: No CC vtx. Normalisation towards total CC yield within -60+40 times.

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Presentation on theme: "Last checks of pp 62 FS A.Qviller. Settings 2A/B1723 and 3A/B 1723 are analysed with: No CC vtx. Normalisation towards total CC yield within -60+40 times."— Presentation transcript:

1 Last checks of pp 62 FS A.Qviller

2 Settings 2A/B1723 and 3A/B 1723 are analysed with: No CC vtx. Normalisation towards total CC yield within -60+40 times a factor of 3. Vtx bins 5 cm, 2% accmaps RICH cut X=+-20 Y=+-15. Back of T5 cut (Y=+- 14) Fixed 6 sigma cut on back projected y-vertex. Require trigger 2 Bins with less than 0.6 factor of average acceptance are removed

3 Settings 2A/B1723 and 3A/B 1723 are analysed with: Flat RICH eff (97%) (not using parametrised eff) p, pbar are corrected for RICH contamination (3%) nkv2 file for tracking eff. Using XA. Newest geant files with cut factor 4 for FS. Chi square cut that removes a small fraction of tracks on Const*(A+B/p) form

4 Status of analysis MRS analysis is within 5% with FV, considered ok. FS spectra in the interval ~6-8% below FV analysis dated 2007-10-29 Seems to be species independant (k- and p have also been inspected)

5 Pi plus

6 Pi minus

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13 Slat 24 is poor in all settings

14 PID seems ok (2B1723)

15 Inefficient (blue) area in front T5


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