Hi Greg,

Here are my comments on the RD* hadronic paper.

We discussed the general comments (paper state, publication strategy etc.) yesterday, so I leave it at specific physics or text comments.

Physics + presentational comments:

l. 211) Does your systematic not include an uncertainty on the hadronic decay of the tau to three pions, which should be mentioned here?
Figure 3) Is the bottom left fit so bad or is the template uncertainty large enough to make it consistent with data? In the second case, the template uncertainty should be plotted. In general, in the black and white figures it is not possible to separate some components by eye.
l. 216) I would propose we mention the pure experimental result (B->D* tau (-> 3pi nu) nu/ B->D* 3 pi ) as well, so it can be improved later with external input.
l. 259) This is the same central value as your result, could you check which is which?

Text comments:

l. 41) Dynamic, kinematic and topological -> remove 'dynamic'
l. 44) This sentence about the fit is long and confusing, split up into fit strategy and way to obtain fit templates.
l. 132) The structure of the selection steps is very unclear. For example in this sentence, do you use multiple BDTs or is the sentence about MVA's and BDT's just repeated?
l. 205) Is this correction related to a later correction factor? Maybe we should just mention which corrections are performed, not the exact numbers, and then show the systematic from corrections in the table with systematics? Also, this sentence is long and unstructured, so it should be rewritten.
l. 246) Just to check: for this 3% bias, the uncertainty is 1.3%, as included in the systematics table? It should be mentioned in that case as a single result, so people do not have to do this combination of information on their own.

Cheers,

Mick


Op 23/05/17 om 21:19 schreef Patrick Koppenburg:

Hi all,

So it seems we are getting all exciting papers. The hadronic R_D* paper is out and assigned to us. Please read it all. I'll volunteer someone to collect comments.

Cheers,

Patrick



-------- Forwarded Message --------
Subject: First circulation of publication draft for PAPER-2017-017, Measurement of $\mathcal{B}(B^0 \to D^{\ast-} \tau^+ \nu_{\tau})$ and the ratio of the branching fractions $\mathcal{B}(B^0 \to D^{\ast-} \tau^+ \nu_{\tau})$/$\mathcal{B}(B^0 \to D^{\ast-} \mu^...
Date: Tue, 23 May 2017 17:46:52 +0000
From: fergus.wilson@stfc.ac.uk
To: lhcb-general@cern.ch
CC: LHCb-PAPER-2017-017-reviewers@cern.ch 


Dear Colleagues,

A draft paper is available for your comments. The CWR 1 period has been shortened to end Friday 2nd June so please contribute comments as soon as possible.

Team leaders, verify the author list and check for reading obligations of your group!

Title           : Measurement of $\mathcal{B}(B^0 \to D^{\ast-} \tau^+ \nu_{\tau})$ and the ratio of the branching fractions $\mathcal{B}(B^0 \to D^{\ast-} \tau^+ \nu_{\tau})$/$\mathcal{B}(B^0 \to D^{\ast-} \mu^+ \nu_{\mu})$ with three-prong $\tau$ decays

Journal         : PRL
Contact authors : Guy_Wormser, Federico_Betti, Benedetto_Siddi, Antonio_Romero, Victor_Renaudin, Concezio_Bozzi
Reviewers       : Konstantinos_Petridis (chair), Michael_McCann, Marcello_Rotondo
EB reviewer     : Roberta_Santacesaria
EB readers      : Brian_Meadows, Simon_Eidelman
Analysis note   : ANA-2015-045
Deadline        : 2-Jun-2017
e-group         : lhcb-paper-2017-017-reviewers
Link            : https://cds.cern.ch/record/2265707
Authors         : LHCb
Twiki           : https://twiki.cern.ch/twiki/bin/view/LHCbPhysics/BToXTauNu3Prong

The following institutes are requested to make institutional comments:
EPFL__Lausanne__Switzerland
Zurich__Switzerland
Ruprecht-Karls-Universitaet_Heidelberg__Germany
NIKHEF__Amsterdam__The_Netherlands
Frascati__Italy
Manchester__United_Kingdom

Please send any comments via the CDS system. It is the responsibility of the contact authors to provide replies to all comments
made. Subsequent modifications to the draft will be made in consultation with the reviewers and during the EB reading. Following
this, there will be a final meeting of the editorial board, with contact authors and reviewers present, when final decisions will be
made. As the last step, the collaboration will be given a final opportunity to comment during a 'silent approval' period.

You can find all paper and conference report drafts open for comments via the EB web-page, by clicking on Current Drafts:

http://lhcb.web.cern.ch/lhcb/lhcb_page/collaboration/organization/editorial_board/default.html

Best regards,
  Fergus

------------------------------------------------------------------------------------
Fergus Wilson, PPD, Rutherford Appleton Laboratory, Harwell Campus, Didcot,
Oxon, OX11 0QX, UK. Tel: +44-(0)1235 445259  Fax: +44-(0)1235 445672
CERN Tel: +41-22 76 77379 Skype: ferguswilson5259



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