bfys-physics

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[Bfys-physics] Fwd: [Nikhef-wide] Uitreiking Jan Kluyver-prijs donderdag 28 februari om 15.00 uur, Spectrum - Presentation Jan Kluyver Award Thursday February 28th, 15.00 at Spectrum
by Marcel Merk 28 Feb '13

28 Feb '13

Dear bfys friends, Daan has won this prize below. If you are at Nikhef on Thursday it might be nice to have a drink with Daan for his prize. cheers, - Marcel ---------- Forwarded message ---------- From: Joan Berger <jberger(a)nikhef.nl> Date: 2013/2/26 Subject: [Nikhef-wide] Uitreiking Jan Kluyver-prijs donderdag 28 februari om 15.00 uur, Spectrum - Presentation Jan Kluyver Award Thursday February 28th, 15.00 at Spectrum To: nikhef-wide(a)nikhef.nl Beste collega's, De Jan Kluyver-prijs is in 2010 ingesteld door de onderwijscommissie van de Onderzoekschool Subatomaire Fysica. De prijs wordt jaarlijks toegekend voor de beste Engelstalige samenvatting van een Nikhef proefschrift. Zonder de inzet van prof. dr. Jan Kluyver zou de Nikhef samenwerkingsovereenkomst in 1975 nooit tot stand gekomen zijn. Omdat de belangrijkste output van het Nikhef ongetwijfeld onze excellent opgeleide zojuist gepromoveerde fysici zijn die de toekomst van Nikhef's onderzoeksveld mede zullen bepalen, draagt deze prijs de naam van Jan Kluyver. De jury bestaat uit voormalige directeuren van het Nikhef. De voorzitter van de jury, prof. dr. Karel Gaemers zal de prijs voor 2012, onder het genot van een hapje en een drankje, op 28 februari 2013 om ca. 15.00 uur in het Spectrum uitreiken. U bent allen van harte uitgenodigd. Dear Colleagues, The Jan Kluyver Award was set in 2010 by the education committee of the Research School for Subatomic Physics. The prize is awarded for the best English-language summary of a Nikhef thesis. Without the efforts of Prof. Jan Kluyver the Nikhef Cooperation Agreement in 1975 would never have been materialized. Because, without a doubt, the most important output of Nikhef are our excellent Nikhef newly trained PhD physicists, who are the future of Nikhef's research, the prize bears the name of Jan Kluyver. The jury consists of former directors of Nikhef. The President of the jury, Prof. Karel Gaemers will award the prize for 2012, while everybody is enjoying a snack and a drink, on February 28th 2013 at 15.00 pm in the Spectrum. You are all cordially invited. -- Secretariaat Nikhef Science Park 105 (v/h Kruislaan 409), 1098 XG Amsterdam Postbus 41882, 1009 DB Amsterdam T 0031 - 20 - 592 5169 F 0031 - 20 - 592 5054 E jberger(a)nikhef.nl (aanwezig di t/m do) _______________________________________________ Nikhef-wide mailing list Nikhef-wide(a)nikhef.nl https://mailman.nikhef.nl/mailman/listinfo/nikhef-wide

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[Bfys-physics] Fwd: First circulation of publication draft for PAPER-2013-003, Search for direct $CP$ violation in $D^0 \to K^- K^+$, $\pi^- \pi^+$ using semileptonic $B$ decays
by Marcel Merk 25 Feb '13

25 Feb '13

Dear Friends, We have been assigned to review the following interesting paper: Search for direct CP violation in D0->K-K+, pi^-pi^+ using semileptonic B decays. For details, please see below. If there is a volunteer to collect the comments for this paper, please contact me. The bfys meeting to discuss it will be Friday 22 Feb, at 9h30 in N328. best regards, - Marcel ---------- Forwarded message ---------- From: Ulrik Egede <U.Egede(a)imperial.ac.uk> Date: 12 February 2013 23:12 Subject: First circulation of publication draft for PAPER-2013-003, Search for direct $CP$ violation in $D^0 \to K^- K^+$, $\pi^- \pi^+$ using semileptonic $B$ decays To: LHCb General mailing list <lhcb-general(a)cern.ch> Dear Colleagues, A paper is available for your comments: Title : Search for direct $CP$ violation in $D^0 \to K^- K^+$, $\pi^- \pi^+$ using semileptonic $B$ decays Journal : PLB Contact authors : Jeroen van Tilburg, Thomas Ruf Reviewers : Tim Gershon (chair), Sheldon Stone, Tom Blake EB reviewer : Jaap Panman Analysis note : ANA-2012-012 Deadline : 26-Feb-2013 e-group : lhcb-paper-2013-003-reviewers Link : http://cds.cern.ch/record/1514660 Extra authors : Twiki : https://twiki.cern.ch/twiki/bin/view/LHCbPhysics/D2hhFromB The following institutes are requested to make institutional comments: LAPP, Annecy-Le-Vieux, France Tsinghua University, China Faculty of Physics and Applied Computer Science, Cracow, Poland Birmingham, United Kingdom EPFL, Lausanne, Switzerland NIKHEF, Netherlands Please send any comments via the CDS system. It is the responsibility of the contact authors to provide replies on all comments made. Subsequent modification to the publication are made in consultation with the referees and during the EB reading. Following this, there will be a final meeting of the editorial board with contact authors and reviewers present where final decisions are made. As the last step a short presentation is given to the collaboration and the paper is sent for publication. 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… Regards, Ulrik Egede -- ===================================================================== Latest news from Editorial Board: - Update front page of PAPERs and CONFs to include license. See template. - Use new reference for trigger. See template - Instructions for submitting to PLB and JHEP updated in FAQ, http://cern.ch/go/Xz7d - Acknowledgements and detector section updated in template. Make sure to update your template. - When the arXiv and journal bibliographic data disagree (e.g author initials or titles), the journal information should always be used. - Remember to check out new template from SVN each time you start editing a new document. ===================================================================== Prof. Ulrik Egede, Tel : +44 20 759 47688 Department of Physics, Fax : +44 20 782 38830 Blackett Laboratory, E-mail : U.Egede(a)imperial.ac.uk Imperial College London, London SW7 2AZ, UK.

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[Bfys-physics] Comments on D-> pi mu mu
by Francesco Dettori 08 Feb '13

08 Feb '13

Dear all, in attachment you can find a summary of the comments on the paper on D-> pi mu mu. So far it includes Patrick and Kristof's comments, beside mine. If anybody else wants to add other comments I'll integrate them. If not Tjeerd would you upload them on behalf of the group? cheers, Francesco -------------------- Francesco Dettori NIKHEF +31 20 592 2230 (Nikhef) +41 22 76 76284 (CERN) fdettori(a)nikhef.nl francesco.dettori(a)cern.ch --------------------

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[Bfys-physics] Group comments on LHCB-PAPER-2012-053
by Tjeerd Ketel 07 Feb '13

07 Feb '13

Dear all, I just submitted our comments. Submission Complete! Your document has the following reference: LHCB-PAPER-2012-053-001-COMMENT-005 Tjeerd

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[Bfys-physics] Bfys Meeting Friday 8 Februaty at 9:45 in H331
by Tjeerd Ketel 07 Feb '13

07 Feb '13

Bfys Meeting Friday 8 Februaty at 9:45 in H331 9:45 "Beam and background in the Belle-2 experiment". by Hiroyuki Nakayama Best regards, Tjeerd Note the different room. Please, let me know if you would like to join by Vidyo. ========================================================= http://agenda.nikhef.nl/conferenceDisplay.py?confId=2395 =========================================================

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[Bfys-physics] Fwd: [Theory-wide] Nikhef theory seminar -- Thursday 7 Feb. @ 2pm
by Robert Fleischer 06 Feb '13

06 Feb '13

Dear Bfys Colleagues, this theory seminar may be interesting for (some of) you. Best regards, Robert Begin forwarded message: > From: Pierre Artoisenet <partois(a)nikhef.nl> > Date: February 6, 2013 1:36:16 PM GMT+01:00 > To: theory-wide(a)nikhef.nl > Subject: [Theory-wide] Nikhef theory seminar -- Thursday 7 Feb. @ 2pm > > Dear all, > > Tomorrow we have a theory seminar at 2 pm in room H331. > The speaker is Martin Gorbahn from Liverpool. > See the details below. > > Regards, > Pierre > > ---- > > Date/place: Thursday 7 Feb., 2pm, H331 > Speaker: Martin Gorbahn (Liverpool) > Title: Ornithology: The Z-Penguin > > > _______________________________________________ > Theory-wide mailing list > Theory-wide(a)nikhef.nl > https://mailman.nikhef.nl/mailman/listinfo/theory-wide

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[Bfys-physics] Reminder Bfys Meeting Friday 1 Februaty at 9:45
by Tjeerd Ketel 05 Feb '13

05 Feb '13

Bfys Meeting Friday 1 Februaty at 9:45 in N328 and on Vidyo Paper introduction and discussion: 9:45 "Observation of the B0s to psi(2S) eta and B0(s) to psi(2S) pi+ pi- decays" http://cds.cern.ch/record/1508049 Best regards, Tjeerd As no volunteer showed up we will go throught the pages and collect comments. We received already comments by Patrick. ========================================================= http://agenda.nikhef.nl/conferenceDisplay.py?confId=2375 ========================================================= You can join the Vidyo from https://indico.cern.ch/conferenceDisplay.py?confId=232076 or from Vidyo: Name of the room: Nikhef_Bfys_Meeting Extension: 9232076 PIN: The room has been protected by a pin number: 1328 Description: 9:45-10:45 h =========================================================

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[Bfys-physics] Tuesday meeting at Nikhef in N328
by Tjeerd Ketel 05 Feb '13

05 Feb '13

Dear all, For 14h I have reserved N328 to follow the Thuesday meeting at Nikhef with Vydio. Best regards, Tjeerd ---------- Forwarded message ---------- Date: Mon, 4 Feb 2013 16:06:33 +0000 From: Roger Forty <Roger.Forty(a)cern.ch> To: "lhcb-general (LHCb General mailing list)" <lhcb-general(a)cern.ch> Subject: Tuesday meeting tomorrow: note unusual room 40/SSC Dear Colleagues, After last week’s packed agenda we will have a shortish Tuesday meeting tomorrow, in the unusual room 40/S2-C01, at the usual time (14:00 CET), Vidyo available: https://indico.cern.ch/conferenceDisplay.py?confId=229852 After a Run Chief report from Massi, we will hear the approval presentation to go to paper for Bs -> phi phi, including further checks that have been made since last week’s talk at the A&S week. Finally there are two more papers to be approved for submission. Hope to see you there, Roger

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[Bfys-physics] Bfys Meeting Friday 1 Februaty at 9:45 in N328 and on Vidyo
by Tjeerd Ketel 01 Feb '13

01 Feb '13

Bfys Meeting Friday 1 Februaty at 9:45 in N328 and on Vidyo I am looking for a volunteer to introduce this paper Paper introduction and discussion: 9:45 "Observation of the B0s to psi(2S) eta and B0(s) to psi(2S) pi+ pi- decays" http://cds.cern.ch/record/1508049 Best regards, Tjeerd ========================================================= http://agenda.nikhef.nl/conferenceDisplay.py?confId=2375 ========================================================= You can join the Vidyo from https://indico.cern.ch/conferenceDisplay.py?confId=232076 Name of the room: Nikhef_Bfys_Meeting Extension: 9232076 PIN: The room has been protected by a pin number: 1328 Description: 9:45-10:45 h =========================================================

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[Bfys-physics] Comments to the paper
by Patrick Koppenburg 18 Jan '13

18 Jan '13

Dear all, Here are my comments to the D->mumupi paper. General comments: How was the binning chosen? The fact that you see leakage from the resonances into your central bin seems to defeat the point of binning. Couldn't you rebin in a more appropriate way. More generally, if you do a search without any apriori knowledge, why do you bin at all? Cannot you publish a background-subtracted dimuon spectrum or Dalitz plane? The usual question about multiple candidates : Can you prove that your choice of best candidate does not bias the result. i.e. are BDT and vertex chi2 uncorrelated? See LHCb-INT-2011-009. Line 99: is there any kinematic requirement that aligns the momentum distribution of D->3pi to D->pimumu? The muon-ID strongly biases momenta. That affects your statement in line 132 that the shape is "well defined" Writing: I find it could be improved a lot. Line 7: remove the spaces inu mu- mu+. Line 9: why "see Fig 1" here? The figure doesn't illustrate the sentence. Line 12: best -> most stringent (?) Line 15: "Throughout... implied": why this sentence here? Line 23: "subject of great interest at LHCb". That may be true but is of no interest to the outside world. What about a sentence saying LHCb is very competitive in RD charm? Line 25: add a comma at end of line. Line 26: samples -> bins. Remove the 2nd for. Line 47: The L0 _trigger_ Line 48: I have nothing a priori against ">" in text, but here some of the operators could easily be replaced by words, like > 1.68 -> exceeds. Why the parenthesis around GeV/c? You could write "exceeds (1.3 GeV/c)^2". Line 49: have _a_ momentum ... and _an_ impact Line 52: "be," -> is Line 55-56: The last sentence is obvious. Remove. Line 60: $\chi^2_{NDF}$ -> $\chi^2/{\rm NDF}$. $\chi^2<30$ of what? Is that a chi^2 or a chi^2/dof? Line 62, 75, 78: Please do not use Loki functors in publications. You could replace DIRA by some angle (e.g. $\theta_d$) or just repeat the definition in line 75. ("and known as the DIRA" would be "known as DIRA" anyway). Line 69: so -> and thus (?) Line 72: the BDT trains -> the BDT is trained Line 78: MAXDOCA is undefined. Line 80: "The variable" ... and then the equation Line 93: are forbidden -> must not Line 98: rewrite as "... except for the requirement that two of the tracks have hits in the muon system." Line 106: as the -> in the (?) Line 108: in the m(...) -> in m(...) Line 113: know -> known Line 129: Please say how the tails are fixed. MC? Line 142: _the_ large width. Rewrite as "The statistical significance of the two observed peaks are 6.1 and 6.2 for D->eta(pi) and Ds->eta(pi), respectively." (assuming that's what it means). Line 147: As no ... windows upper limits. Line 165: "a number" what number? Line 196: "imperfect emulation". The online reconstruction is not emulated but re-run. What do you mean? Table 3: Effect -> Systematic error Cheers, Patrick -- ======================================================================== Patrick Koppenburg Nikhef, Amsterdam http://www.koppenburg.org/address.html

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