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OLD- just experimental NEW- just experimental. OLD- just experimental NEW- just experimental.

Published byBernard Eaglin Modified over 9 years ago

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Presentation on theme: "OLD- just experimental NEW- just experimental. OLD- just experimental NEW- just experimental."— Presentation transcript:

1 OLD- just experimental NEW- just experimental

2 OLD- just experimental NEW- just experimental

3 PDF set σ W+ B W →lν (nb) σ W- B W →lν (nb) σ z B z →ll (nb) HERA-I12.13±0.13 12.14±0.13 9.13±0.15 9.08±0.15 2.01±0.025 1.99±0.025 fs=0.2512.12 9.09 9.072.00 fs=0.412.15 12.149.16 9.142.02 fc=0.10/fc=0.12 12.26 12.189.23 9.112.04 2.01 fc=0.20/fc=0.18 12.00 12.069.03 9.111.99 2.00 Q 2 min =2.512.13 12.129.12 9.092.01 2.00 Q 2 min =5.012.17 9.17 9.142.01 Q 2 0 =211.77 12.048.85 9.041.95 1.99 Q 2 0 =612.37 12.209.29 9.132.06 2.02 α s =0.115612.02 12.009.01 1.98 1.99 α s =0.119612.26 12.259.19 2.04 2.03 Humpy param11.95 9.00 8.991.98 1.97 Zeus param12.459.362.07 Model dependences The blue values are NEW with fc=0.15 again Broad picture of model dependence is not quite the same.. No one overwhelming source, but a build up of lots of changes of ½ to 1 sigma. Mc matters now~same as fc Mb is ½ sigma Different parametrizations are outside one sigma Alpha_s is about one sigma

4 OLD plus 6 model errors NEW plus 6 model errors-quite a bit smaller..the charm did make a big difference

5 OLD plus 6 model errors NEW plus 6 model errors-quite a bit smaller..the charm did make a big difference

6 NEW Q20=2 its really this isnt it-there is nothing like the size of effect OLD Q20=2

7 NEW Q20=2 its really this isnt it-there is nothing like the size of effect

8 OLD Q20=6 NEW Q20=6 – this is also smaller but not so strikingly so

9 NEW Q20=6- this is also smaller but not so strikingly so OLD Q20=6

10 OLD humpy NEW humpy- doesn’t look the same and it should?- trouble?

11 OLD humpy NEW humpy doesn’t look the same and it should?- trouble? Humpy doesn’t look as different as it did.

12 NEW ZJ- again its different could the k- factors explain it? OLD ZJ

13 NEW ZJ -again its different could the k- factors explain it? But was never that large

14 OLD alphas=0.1156NEW alphas=0.1156- different

15 OLD alphas=0.1156 NEW alphas=0.1156

16 NEW alphas=0.1196- different OLD alphas=0.1196 Is within error bars..but always was within other model errors

17 NEW alphas=0.1196 OLD alphas=0.1196 Fact is alphas was never large and still isnt

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