Hi Urs,

 I calculated the fractions for the B+ on the DECAY.DEC
 I got

 mode        BR *10-6  relative BF in kaons   total BF in kaons*10-6

pi0           90             0                   0
eta           30             0                   0
rho0         130             0                   0
omega        130             0                   0
eta'          60             0                   0

a_10          82             0                   0
a_20           7             5%                  0.35
b_10          48             0                   0
a_00           7             10%                 0.7
f_0            4             22%                 0.8
f'_0           4             7%                  0.3
f_1           41             11%                 4
f'_1          41             100%               41
h_1           24             0%                  0
h'_1          24             100%               24
f_2            4             4.6%                0.2
f'_2           4             87%                 0.3

total        730                                 71

fraction in kaons = 9.7%

that is bit lower than what you get.

>From your numbers it looks like you are not fitting mes. Since modes with
kaons have higher masses, they have higher combinatorics too. Then it is
mandatory to subtract the combinatoric background by fitting mes.
I think that your BF will go down a bit.


 Daniele


On Fri, 7 Mar 2003, Urs Langenegger wrote:

>
> Hoi Daniele,
>
> you are right and I am right and both are wrong -- to some extent.
>
> There  is a  big  difference between  B0  and B+  (some  of the  heavy
> resonances decay exclusively into KKbar states).
>
> I had  forgotten that eta' does  contain an admixture of  ssbar, so my
> strangeness counting (based  on the quark content) was  wrong on the K
> level. I  changed this to count  kaons (charged, K0S,  K0L).  We might
> argue about whether or not to include acceptance cuts and remove KL.
>
>  http://www.slac.stanford.edu/~ursl/talks/030603/bnu.eps.gz
>  http://www.slac.stanford.edu/~ursl/talks/030603/bch.eps.gz
>
> contain the distributions for neutral and charged B. The events with
> kaons are composed of the following Xh states:
>
> B+                                     B0
> ID     #events          pdt.table      ID     #events          pdt.table
> ====================================   ====================================
> 41   : 778 +/- 27.8927  non-resonant   42   : 690 +/- 26.2679  non-resonant
> 115  : 3 +/- 1.73205    a_20	       215  : 3 +/- 1.73205    a_2
> 225  : 2 +/- 1.41421    f_2	       10211: 2 +/- 1.41421    a_0
> 335  : 16 +/- 4         f'_2
> 10111: 2 +/- 1.41421    a_00
> 10221: 4 +/- 2          f_0
> 10333: 143 +/- 11.9583  h'_1
> 20223: 34 +/- 5.83095   f_1
> 20333: 265 +/- 16.2788  f'_1
>
> The fractions I get now are
>
> Mode           B0      B+
> ----------------------------
> resonant        0.2%   14.0%
> non resonant   12.1%   13.4%
>
> These  numbers are  on the  generic hybrid,  i.e. they  have  not been
> reweighted to increase the non-resonant b2u component.
>
> Maybe someone can calculate the B+ on DECAY.DEC?
>
>
> While checking my absolute normalization, I found a rather interesting
> effect  I  would  not  have  expected:  In both  the  hybrid  and  the
> nonresonant b->ulnu  MC we have b->clnu decays  (not b->ccbarlnu). You
> can look at the dump of the  generator block of the hybrid and nonr MC
> at
>
>  ~ursl/d/hybrid.log.gz
>  ~ursl/d/nonresonant.log.gz
>
> This  is dumped directly  from recoilNtp.cc  with dumpOneB()  which is
> normally commented out... The chains for these files are in
>
>   ~/macros/fsx/vub/VubAnalysis/chains/hybrid
>   ~/macros/fsx/vub/VubAnalysis/chains/nonresonant
>
> This is  a 0.5% effect  for B+  and 1.5% for  B0. I suspect  that this
> might come more easily from the non-resonant generator than ISGW2.
>
> Cheers,
> --U.
>