Hi Patrick,
Thanks for reminding me to read this historical paper.
Please find my comments below.
Cheers, Niels
----------------------------------------------------------------------------
General
--------
* Instead of "-CP-", I would write out "CP violation".
* Example diagrams of the interfering b->udu and b->duu amplitudes are
indispensable, for a Nature Physics paper aiming at a wider circle than
flavour physicists.
Other
--------
L.7 "virtual W boson with couplings whose phases can" ->
"virtual W boson where the phases of the couplings can"
L.20-21 "CPV could arise from the interference of two amplitudes mainly due to the large phase of the CKM element Vub ..."
[Strictly speaking this is not true. Other phase conventions have
a vanishing phase for Vub. How about this: ]
"CPV could arise from the interference of two amplitudes mainly
due to the large phase difference if one of the amplitudes involves the CKM element Vub ..."
L.31 [Why does the T-operator get a hat, and the P-operator not?]
L.32 [Please could you insert the phrase time-reversal somewhere?
Maybe here:]
"where T is the operator... three-vectors [16,17]." ->
"where T is the operator... three-vectors, also known as the time-reversal operator [16,17]."
L.45 ["localised CPV" sounds jargon. How about: ]
"... to enhance sensitivity to CPV in specific parts of the phase space."
L.50 [Could you add a reference to the LHCb measurement of BR(Lb->Lcpi), \cite{LHCb-PAPER-2014-004}, which shows that these are indeed the most abundant decays? (And the reference gives also more details on the relative Lb production.)]
L.121 [The phrasing of the bins of scheme B, using the n,(n-1) interval, is complicated. How about simply: ]
"Scheme B has 10 equidistant bins in |Phi|."
Fig.2 [The legend and Chi2 of Figs.c) and d) are smaller than the ones in a) and b).]
L.147. [My Chi2 calculator shows that Chi2/ndf=30.5/10 corresponds to a p-value of 7.1 x 10^-4 ? (and 21.1/12 becomes p=4.89 x 10^-2 ?]
----------------------------------------------------------------------------
On Thu, 21 Jul 2016, Patrick Koppenburg wrote:
Hi all,
I was expecting no replies. Please read the paper and send me your comments. There's likely to be some noise about it, so you may get asked questions by your non-LHCb colleagues. The best way to be informed about (and influence) the content is to read it now.
The next paper assigned to us will be that to be approved today https://indico.cern.ch/event/558480/ . It's tt, W+bb and W+cc cross-sections (to go to paper) but it will be followed by a CONF on Higgs->bb and Higgs->cc. I understand this will also be assigned to us.
Cheers,
Patrick
On 07/18/2016 04:03 PM, Patrick Koppenburg wrote:
Dear all,
There's an important paper for us: The first evidence of CP violation in baryons. It would also be our 2nd paper going to Nature Physics.
Anyone volunteering to collect comments?
Thanks
Patrick
-------- Forwarded Message --------
Subject:
First circulation of publication draft for PAPER-2016-030, Probing matter-antimatter asymmetries in $\Lambda^0_b$-baryon decays
Date:
Mon, 18 Jul 2016 15:32:41 +0200
From:
Michael Schmelling <Michael.Schmelling@mpi-hd.mpg.de>
To:
LHCb General mailing list <lhcb-general@cern.ch>
Dear Colleagues,
A draft paper is available for your comments:
Team leaders, please verify the author list and check for reading obligations of your group!
Note that in view of ICHEP the circulation has been shortened from 2 weeks to 10 working days.
Title : Probing matter-antimatter asymmetries in $\Lambda^0_b$-baryon decays
Journal : Nature Physics
Contact authors : Jinlin_Fu, Nicola_Neri, Maurizio_Martinelli, Andrea_Merli
Reviewers : Steve_Playfer (chair),
Mike_Sokoloff
EB reviewer : Mat_Charles
EB readers : Michael_Schmelling, Simon_Eidelman
Analysis note : ANA-2014-077
Deadline : 29-Jul-2016
e-group : lhcb-paper-2016-030-reviewers
Link : https://cds.cern.ch/record/2199884
Authors : LHCb Twiki : https://twiki.cern.ch/twiki/bin/viewauth/LHCbPhysics/LambdabTophhh
The following institutes are requested to make institutional comments:
NIKHEF__Amsterdam__The_Netherlands
Edinburgh__United_Kingdom
UFRJ__Rio_de_Janeiro__Brazil
Bucharest-Magurele__Romania
Padova__Italy
PNPI__Gatchina__Russia
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,
Michael
--
Michael Schmelling, MPI for Nuclear Physics
Phone:+49-6221-516-511 Fax:+49-6221-516-603
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