Hi all,

Here are my comments:

Dear Patrick and Matt,

Congratulations for that nice new result. It shows the potential of conversions for such studies.

Physics: L.108: why S/sqrt(S+B) while you aim for a limit? Punzi or something similar would have been much more appropriate. Eq.1: You don't say how you treat the factor 2 of B0/B0bar you have wrt to B+. General: Its unclear where the uncertainty on the BF of the normalisation modes enters the computation of the limit. It's not mentioned. Generally, you could give fitted yields?

L.3: the computation (?) of many observables require ... (observables do not require anything) L.22: Please put charges on DD L.25: Is this a Letter? L.31: Please explain better how the converted photons can broaden the mass (?) shape of background. L.33: Say \B=\bd,\Bs here L.34: "fall within the ... signal" sounds like jargon and is not very clear. Which are they? L.39 and many more: CL should be in roman L.61: did you really only use pythia 6? L.78: I presume it's the tracks and not the vertex that is associated to a cluster. Maybe a comma will fix that. L.89: why [] in [jpsigamma] while in L.75 you have (mu)? L.97: You did not say if the largest value is a good or a bad value. L.108: signal events -> signal decays L.112: K*0->K+pi- and not K-pi+. You need to say cc is included. L.120: sig and norm should be roman L.132: which effect? These are statements. I don't see how you turn that into a systematic. L.134: the B mass resolution Fig.2: Bs->J/psigamma should be B->J/psigamma L.146: B+ -> ... L.172: space missing after \piz L.163: kinematics is jargon. Please say what you exactly mean. L.167: systematic uncertainty. L.178: events -> candidates (that's a very nice example of why event should be avoided. All our events are downstream). L.227: You should compare the Bd limit with Babar's here. Fig.4: MC -> simulated. events -> decays [1,6] fix the math to the actual paper title [4] collaboration

Cheers,

Patrick

On 01/09/15 12:03, Tjeerd Ketel wrote:

Dear all,

We have a new paper assigned to comment on. It would be nice if there is a volunteer for Friday 4 September to lead the discussion on this paper. Friday 11 September is "sportdag" and rather close before the deadline on Monday 14.

Best regards, Tjeerd ---------- Forwarded message ---------- Date: Mon, 31 Aug 2015 07:25:39 +0000 From: George Lafferty george.lafferty@manchester.ac.uk To: LHCb General mailing list lhcb-general@cern.ch Subject: First circulation of publication draft for PAPER-2015-044, Search for the rare decays $B^0 \to J/\psi \gamma$ and $B^0_s \to J/\psi \gamma$ Resent-Date: Mon, 31 Aug 2015 09:26:56 +0200 Resent-From: lhcb-general-dynamic@cern.ch

Dear Colleagues,

A draft paper is available for your comments:

Title : Search for the rare decays $B^0 \to J/\psi \gamma$ and $B^0_s \to J/\psi \gamma$

Journal : PRD Contact authors : Matthew_Kenzie, Patrick_Owen Reviewers : Paolo_Gandini (chair), Vanya_Belyaev EB reviewer : Claudia_Patrignani EB readers : Nicola_Serra, Ronan_McNulty Analysis note : ANA-2014-096 Deadline : 14-Sep-2015 e-group : lhcb-paper-2015-044-reviewers Link : https://cds.cern.ch/record/2048029 Authors : LHCb Twiki : https://twiki.cern.ch/twiki/bin/viewauth/LHCbPhysics/Bs2JpsiGamma

The following institutes are requested to make institutional comments: NIKHEF_VU__Netherlands Ferrara__Italy Dublin__Ireland__MIT__USA LPC__Clermont-Ferrand__France Santiago_de_Compostela__Spain Oxford__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_...

Best regards, George

---

Bfys-physics mailing list Bfys-physics@nikhef.nl https://mailman.nikhef.nl/mailman/listinfo/bfys-physics

Dear all,

We did not succeed to find a volunteer and to have a Bfys meeting on this paper. I suggest that you read the paper and send your comments as CC. I will collect the comments before Sunday 18h and circulate the combined result on Monday for your approval. Upload to VCS will then be Monday 18h.

Best regards, Tjeerd

On Tue, 1 Sep 2015, Tjeerd Ketel wrote:

Dear all,

We have a new paper assigned to comment on. It would be nice if there is a volunteer for Friday 4 September to lead the discussion on this paper. Friday 11 September is "sportdag" and rather close before the deadline on Monday 14.

Best regards, Tjeerd ---------- Forwarded message ---------- Date: Mon, 31 Aug 2015 07:25:39 +0000 From: George Lafferty george.lafferty@manchester.ac.uk To: LHCb General mailing list lhcb-general@cern.ch Subject: First circulation of publication draft for PAPER-2015-044, Search for the rare decays $B^0 \to J/\psi \gamma$ and $B^0_s \to J/\psi \gamma$ Resent-Date: Mon, 31 Aug 2015 09:26:56 +0200 Resent-From: lhcb-general-dynamic@cern.ch

Dear Colleagues,

A draft paper is available for your comments:

Title           : Search for the rare decays $B^0 \to J/\psi \gamma$ and $B^0_s \to J/\psi \gamma$

Journal         : PRD Contact authors : Matthew_Kenzie, Patrick_Owen Reviewers       : Paolo_Gandini (chair),                    Vanya_Belyaev EB reviewer     : Claudia_Patrignani EB readers      : Nicola_Serra, Ronan_McNulty Analysis note   : ANA-2014-096 Deadline        : 14-Sep-2015 e-group         : lhcb-paper-2015-044-reviewers Link            : https://cds.cern.ch/record/2048029 Authors         : LHCb  Twiki           : https://twiki.cern.ch/twiki/bin/viewauth/LHCbPhysics/Bs2JpsiGamma

The following institutes are requested to make institutional comments: NIKHEF_VU__Netherlands Ferrara__Italy Dublin__Ireland__MIT__USA LPC__Clermont-Ferrand__France Santiago_de_Compostela__Spain Oxford__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_...

Best regards, George