Hi all,
I've recomputed the % sys for B & D reweighting for B0 and B+.
In the calculation I've used the default result corresponding to when the
sys were evaluated:
All B = 0.0203; B+ == 0.0174; B0 == 0.0252
The sys that are coming out are:
All B B+ B0
B & D togh. 4.9% 8.0% 2.8%
D only 3.4% 4.0% 2.0%
B only 3.0% 5.7% 1.6%
I do not understand the small discrepancies with results quoted in the
webpage
(http://www.slac.stanford.edu/~asarti/recoil/sys/Newtheor_sys1202.html)
and used by Daniele in the calculation. The reason can be the 'default'
values used to calculate the % error: it's not easy for me to find out
what was the 'default' in those days :)....
However the results are consistent with what quoted in the webpage and
used for the sys tables. I hope that this information can be useful in
order to quote any result on B0, B+ separately.
The reason for the large difference btw B0 and B+ comes out to be the B
sys: the error on D*lnu decays for B+ is 4 times larger than that for
B0...(0.8vs 0.21) this is reflected in the sys (dominated by the D*lnu
modellization).
Let me know comment-questions.
ciao,
Alessio
______________________________________________________
Alessio Sarti Universita' & I.N.F.N. Ferrara
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"... e a un Dio 'fatti il culo' non credere mai..."
(F. De Andre')
"He was turning over in his mind an intresting new concept in
Thau-dimensional physics which unified time, space, magnetism, gravity
and, for some reason, broccoli". (T. Pratchett: "Pyramids")
