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Analysis report H.Yim (6/22/2006). 2 Table of contents 1. TC cut selection region 2. Spectrum comparison after bug fixing on 1/beta - At previous, was.

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Presentation on theme: "Analysis report H.Yim (6/22/2006). 2 Table of contents 1. TC cut selection region 2. Spectrum comparison after bug fixing on 1/beta - At previous, was."— Presentation transcript:

1 Analysis report H.Yim (6/22/2006)

2 2 Table of contents 1. TC cut selection region 2. Spectrum comparison after bug fixing on 1/beta - At previous, was used for 1/β. It just gave a worse resolution. - Now, is used. 3. E471 neutron momentum spectra for a comparison with present analysis. 4. neutron momentum spectra with 7 MeVee 5. neutron momentum spectra with 10 MeVee 6. neutron momentum spectra with 7 MeVee for L-arm -- L-arm have relatively good resolution than R-arm’s one as previously reported. 7. neutron momentum spectra with 7MeVee for R-arm 8. neutron momentum spectra with 10MeVee for L-arm 9. neutron momentum spectra with 10MeVee for R-arm 10. neutron momentum spectra with VcaVn cut -- VcaVn cut is applied with fast-π selection on TC. Two different region selection of VcaVn is compared on the same figure. 11. 1/β quality checking I --,, 12. 1/β quality checking II --,, 13. 1/β quality checking III --, 14. 1/β quality checking IV -- *In all neutron momentum spectra, the unit of Y-axis is counts/(10MeV/c) as same as reference figure.

3 3 1. TC cut selection region on dE/dx E471 α – proton selection δ – slow pion selection ζ – fast pion selection E549 Top

4 4 2. Spectrum comparison after bug fixing on 1/beta Top

5 5 3. E471 neutron momentum spectra for comparison (from Suzuki-san’s thesis) Semi-inclusive proton Fast-pion Slow pion Top

6 6 4. Neutron momentum spectra with 7 MeVee threshold Top

7 7 5. Neutron momentum spectra with 10 MeVee threshold Top

8 8 6. Neutron momentum spectra with 7 MeVee threshold (L-arm) Top

9 9 7. Neutron momentum spectra with 7 MeVee threshold (R-arm) Top

10 10 8. Neutron momentum spectra with 10 MeVee threshold (L-arm) Top

11 11 9. Neutron momentum spectra with 10 MeVee threshold (R-arm) Top

12 12 10. Neutron momentum spectra with VcaVn cut ( black line is for -25<VcaVn<-5 ) ( red line is for -60<VcaVn<-25 or -5<VcaVn<-2 ) 10 MeVee threshold 7 MeVee threshold 10 MeVee threshold Top

13 13 11. 1/β quality checking I Top

14 14 12. 1/β quality checking II Top Typical one in L-armTypical one in R-arm All counters show bending structure.

15 15 13. 1/β quality checking III Top L-armR-arm Later part of layers should have better resolution, but left figure doesn’t show that tendency. So, performance of each layer has checked. The result is following two figures.

16 16 14. 1/β quality checking IV Top


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