Hi Tjeerd,

I had a look through. I think the comments are for the most part accepted. There are some small misunderstandings, but despite those the authors seem to do as we intended to ask, which is very nice to see.

The only point I think we should clarify a second time is point (1) on the motivation.

Although the proponents do want to include something more full for the paper, they should still say something in this conference note, however small, about the motivation of this study, and indicate at least that it is not currently known whether the 50% is new physics or not.

A simple sentence such as "At this time we are unaware of a precise Standard Model prediction of these asymmetries, which renders interpretation of the large observed asymmetries uncertain. As a result, to obtain the most information we form our analysis to measure also in bins of the Dalitz plane, similarly to the studies performed in Ref...."

This should be placed in both the introduction and conclusions if possible.

Thanks,

Rob

------------------------------------------ Robert Lambert FOM-VU-NIKHEF-Bfys LHCb Email: rob.lambert@cern.ch ------------------------------------------ CERN, 13-1-018 Tel: +41 22 767 4024 Fax: +41 22 766 8109 ------------------------------------------ Nikhef N241 Tel: +31 20 592 2131 Fax: +31 20 592 5155 ------------------------------------------

________________________________________ From: Tjeerd Ketel [tjeerd@nikhef.nl] Sent: 20 September 2012 13:40 To: bfys-physics@nikhef.nl Cc: Rob Lambert Subject: LHCB-CONF-2012-028-001-COMMENT-004 (a comment has been made on your comment) (fwd)

Dear all, The response on our long list of comments is available. Please, check you comment. Tjeerd

---------- Forwarded message ---------- Date: Tue, 18 Sep 2012 07:44:21 +0200 From: CERN Document Server Submission Engine cds.support@cern.ch To: tjeerd@nikhef.nl Subject: LHCB-CONF-2012-028-001-COMMENT-004 (a comment has been made on your comment)

Dear LHCb Colleague, The comment (LHCB-CONF-2012-028-001-COMMENT-001) that you made on LHCB-CONF-2012-028-001 (entitled: 'Evidence for $C!P$ violation in $B^{\pm} \rightarrow \pi^{\pm} \pi^{+} \pi^{-}$ and $B^{\pm} \rightarrow K^{+} K^{-} \pi^{\pm}$ decays') has itself been commented on by Alvaro Gomes Dos Santos Neto [CERN - PH/ULB] (alvaro.gomes.dos.santos.neto@cern.ch).

This new comment (LHCB-CONF-2012-028-001-COMMENT-004) may be seen at http://cdsweb.cern.ch/record/1478433

Best regards, The CERN Document Server Server support Team