1. Inclusive charm cross-section and charm hadrons production fractions F. Di Capua

2. Charged charm summary candidatesbckgr NC1 NC3 NC5 452 491 22 43.3±2.4 3.8±0.2 1.5±0.1 Total CC neutrino events 93807 c+c+  1p D+D+ Ds+Ds+ 17.7±1.3 23.1±0.9 25.3±1.2  3p 40.8±1.3 51.9±0.9 62.9±1.2  5p 46.2±4.3 61.1±5.1 74.6±3.9 R=  loc ch /  loc CC 1.02±0.02 0.92±0.01 0.88±0.03  3p /  1p 2.30±0.18 2.25±0.10 2.49±0.13

3. [( N 1 -Nbg 1 )/  1p + (N 3 -Nbg 3 ) /  3p + … ] [ Ncc×R av ]  ch /  CC = Inclusive cross-section f i 1p = f i × BR( C i  1 p)f i 3p = f i × BR( C i  3 p)  i f i 1p  i 1p  1p =  i f i 1p  i f i 3p  i 3p  3p =  i f i 3p

4.  ch /  CC (%) variation of charged charm cross-section as function of charmed fractions random generation of fractions f  c+

5. Charmed charm fraction determination: Likelihood method Event by event probability

6. N cc =93807 Fit Results 1p c+c+ D+D+ Ds+Ds+ 580.2 1041.5 371.2 3p 328.5 558.7 150.8 1p+3p 908.7 1600.2 522.0 +139.1 -140.2 +139.3 -135.5 +213.2 -209.6 +66.5 -65.5 +78.9 -75.4 +101.1 -102.4 +154.2 -102.4 +160.1 -155.1 +235.7 -233.3  (1prong)/  CC = (2.11  0.15  0.07)%  (3prong)/  CC = (1.10  0.09  0.02)%

7. Inclusive cross-section  (1p+3p)/  CC = (3.2  0.17)% for effect of 5 prong: 3.253 ÷ 3.265  ch /  CC = (3.26  0.17 (fit)  0.12 (efficiency)  ….)% BR(C +  1 prong) =(65.1  6.4)% BR(C +  3 prong) =(33.9  3.5)% BR(C +  5 prong) =(1.0  0.2(stat)  0.2) %

8. charged charm production fractions f D+ = 0.528  005 f Ds+ = 0.172  0.077 f  c+ = 0.300  0.005 Topological BR BR(  c+  3 prong) =36.1  9.5 BR(D+  3 prong) =34.9  5.9

9. Energy dependence of charged charm cross-section only errors from fit

10. Energy dependence of total charm cross-section E531 Energy (GeV)

11. neutrino and anti-neutrino charm cross-section

12. Outlook other systematic effects under calculation draft in preparation Results inclusive charm cross-section charmed hadron production fractions topological branching ratios energy dependence of cross section

13. Energy dependence of neutral charm cross-section

14. selection efficiency as a function of charm momentum 3 prong 1 prong

15. 1p c+c+ D+D+ Ds+Ds+ 104.7 221.3 82.7 3p 136.8 266.6 83.5 +25.1 -25.3 +29.6 -28.8 +47.5 -46.7 +27.7 -27.3 +.37.7 -36.0 +56.0 -56.7 Fit Results in terms of observed events

16. As error test fitted different 500 MC samples with 137 Lc, 267 D+, 84 Ds

17. D0 events: MC/Data checks Charm momentum Flight length

18. Analysis input Flight length (measured in emulsion) Charm momentum (estimation with daughter’s opening angle) Momentum resolution

19. MC test: some example input fraction output result f  c + fD+fD+ fD+fD+ f D s + =0.2 f D s + =0.3

20. D0 events: MC/Data checks on the variable FL/P

21. Background

22. Topological BR BR(  c +  1 prong) =21.4% BR(  c +  3 prong) =26.6% BR(D +  1 prong) =29.8% BR(D +  3 prong) =32.4% BR(D s +  1 prong) =24.7% BR(D s +  3 prong) =28.2% 36.8 % 44.6 % 51.7 % preCHORUS status unknown part

23. Energy dependence of total charm cross-section