Hi Rob, Let me just clarify: you question the claim of 0.5%, is that correct? just to make sure I understand which point you comment on. cheers, - Marcel
On 2 July 2013 10:06, Rob Lambert Rob.Lambert@cern.ch wrote:
Erm, just some statistical queries.. what about chebychev's inequality:
http://en.wikipedia.org/wiki/Chebyshev%27s_inequality
"No more than 1/k^{2} of the distribution's values can be more than k standard deviations away from the mean"
In this case it is 1/(3.7*3.7) which is 7%, and 24*7% is 1.75, so no more than 1.75 of the observables should be this far away. One deviation this large is perfectly expected from Chebychev's inequality.
Thanks,
Rob
Robert Lambert FOM-VU-NIKHEF-Bfys LHCb Email: rob.lambert@cern.ch
Nikhef N251 Tel: +31 20 592 2131 Fax: +31 20 592 5155
CERN, 13-1-018 Tel: +41 22 767 4024 Fax: +41 22 766 8109
*From:* bfys-physics-bounces@nikhef.nl [bfys-physics-bounces@nikhef.nl] on behalf of Marcel Merk [marcel.merk@nikhef.nl] *Sent:* 01 July 2013 18:01 *To:* bfys-physics@nikhef.nl *Subject:* [Bfys-physics] B->K*mumu paper
Dear bfys-physics friend, This is to let you know that I collect comments to the paper below. To stimulate you to read it: we claim that the probability that the measurement is consistent with the Standard Model is only 0.5%. A local discrepancy of 3.7 sigma is observed.
LHCb PAPER-2013-037: "Measurement of form factor independent observables in the decay $B^0\to K^{*0}\mu^+\mu^-$" Link : https://cds.cern.ch/record/**1557918https://cds.cern.ch/record/1557918 Deadline : 09-Jul-2013
best regards,
- Marcel
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