Hi Wouter,

About 1. : They did not get the question. The GL is trained on background without phis. So it's useless to fight background with phis. Or their sentence is unclear.

I find the reply on the mass fit a bit short. "Therefore we are confident that our signal is well described by a combination of a Crystal Ball and a secondary gaussian that is a model also used in other LHCb analysis." The fact that it was used in analyses where it does not matter not relevant. In this analysis it matters a lot and we'd like to see a study of the mass shape in a sample without background. But looking at the analysis note (p.7) they have a quite good fit to MC with that model.

"The non-resonant part of the signal is not a background and is
indeed part of what we report. See the abstract:
"29.9±6.4  B0s→(K+K−)(K±π∓)
candidates are found in mass windows 746\mevcc<M(K±π∓)<1046\mevcc and 1012\mevcc<M(K+K−)<1026\mevcc" "

well, sure but the title says observation of phiK*.

Cheers,

Patrick





On 04/24/2013 09:17 AM, Wouter Hulsbergen wrote:
Dear all,

Please see this link

   http://cds.cern.ch/record/1543516

for answers to our comments on the B->phiK* paper.

Cheers,
Wouter


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Dear LHCb Colleague,
       The comment (LHCB-PAPER-2013-012-001-COMMENT-005) that you made 
on LHCB-PAPER-2013-012-001
(entitled: 'First observation of the decay $B_s^0 \to\phi\bar{K}^{*0}$') 
has itself been commented on by Cibran Santamarina Rios [CERN - PH/ULB] 
(cibran.santamarina.rios@cern.ch).

This new comment (LHCB-PAPER-2013-012-001-COMMENT-008) may be seen at
http://cds.cern.ch/record/1543516


Best regards,
        The CERN Document Server Server support Team


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