bfys-physics

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520 discussions

[Bfys-physics] Fwd: LHCB-PAPER-2016-030-001-COMMENT-019 (a comment has been made on your comment)
by Patrick Koppenburg 05 Aug '16

05 Aug '16

Hi all, Here are the replies from the Lambda_b proponents. They addressed our comments. We also had one physics comment: > Physics: We are very surprised that the observation of P asymmetry in > Lb->Lcpi is only reported in the supplementary material. There has > never been P violation seen in Lb decays. Why not report it? Adding a > systematic uncertainty would take a bit of work, but is it that much? > > ---> For this paper we decided to focus on a couple of decay > channels which are the most interesting for CPV. In the coming months, > we will finalise the work on the other phhh decays. There we could > also add the observation of P asymmetry in Lb->Lcpi decays. > Generally it's fine that one comes back to that in a later publication, though I doubt it will be a "few" months. The risk that some theorist makes big claims is rather low in that case (P violation in weak baryon decays, so what? That was already seen in 1956). So I suggest not to follow up. Cheers, Patrick -------- Forwarded Message -------- Subject: LHCB-PAPER-2016-030-001-COMMENT-019 (a comment has been made on your comment) Date: Fri, 5 Aug 2016 13:15:22 +0200 From: CERN Document Server Submission Engine <cds.support(a)cern.ch> To: patrick.koppenburg(a)cern.ch Dear LHCb Colleague, The comment (LHCB-PAPER-2016-030-001-COMMENT-010) that you made on LHCB-PAPER-2016-030-001 (entitled: 'Probing matter-antimatter asymmetries in $\Lambda^0_b$-baryon decays') has itself been commented on by Maurizio Martinelli [CERN - EP/ULB] (maurizio.martinelli(a)cern.ch). This new comment (LHCB-PAPER-2016-030-001-COMMENT-019) may be seen at http://cds.cern.ch/record/2205729 Best regards, The CERN Document Server Server support Team -- ======================================================================== Patrick Koppenburg Nikhef, Amsterdam http://www.koppenburg.org/address.html

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[Bfys-physics] Fwd: Analysis approvals tomorrow (August 2)
by Patrick Koppenburg 02 Aug '16

02 Aug '16

Dear all, [Sorry for the potentially double post. mailman is playing games ] Today at 11 is Katya's approval presentation. Please join. Patrick -------- Forwarded Message -------- Subject: Analysis approvals tomorrow (August 2) Date: Mon, 1 Aug 2016 09:53:08 +0200 From: Vincenzo Vagnoni <vincenzo.vagnoni(a)cern.ch> To: lhcb-general (LHCb General mailing list) <lhcb-general(a)cern.ch> Dear colleagues, we will have one approval to go to PAPER tomorrow at 11:00 CERN time in room 2-R-030. Please see below for the details and note the reading Institute assignments. Details for connecting via vidyo are on the Indico agenda. Cheers, Vincenzo https://indico.cern.ch/event/560739/ * Tuesday, 2 August 2016 o 11:00 → 11:45 Approval to go to PAPER: First observation of B+→J/ψ3π+2π− and B+→ψ(2S)π+π+π− decays Twiki: https://twiki.cern.ch/twiki/bin/view/LHCbPhysics/B2psi5pi Institutes: Warwick, United Kingdom. Bristol, United Kingdom. Milano Bicocca, Italy. Cambridge, United Kingdom. Barcelona, Spain. LAPP, Annecy-Le-Vieux, France + 11:00 RC report5m Speakers: Peter Clarke (University of Edinburgh (GB)) , Ricardo Vazquez Gomez (Istituto Nazionale Fisica Nucleare (IT)) + 11:05 Analysis presentation20m Speakers: Katya Govorkova (Nikhef National institute for subatomic physics (NL)) , Vanya Belyaev (Institute for Theoretical and Experimental Physics (RU)) ======================================================= Vincenzo Vagnoni -- European Organisation for Nuclear Research (CERN) Address: EP/LBD 2-1-043, CH-1211 Geneva 23 - Switzerland Phone: +41-(0)22-76-73994 Mobile: +41-75-411-7920 (int. 167920) E-mail: Vincenzo.Vagnoni(a)cern.ch <mailto:Vincenzo.Vagnoni@cern.ch> -- Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Bologna Address: via Irnerio 46, I-40126 Bologna - Italy Phone: +39-051-20-91071 Mobile: +39-347-6056920 E-mail: Vincenzo.Vagnoni(a)bo.infn.it <mailto:Vincenzo.Vagnoni@bo.infn.it> ======================================================= -- ======================================================================== Patrick Koppenburg Nikhef, Amsterdam http://www.koppenburg.org/address.html

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[Bfys-physics] Re : Fwd: First circulation of publication draft for PAPER-2016-030, Probing matter-antimatter asymmetries in $\Lambda^0_b$-baryon decays
by patrick koppenburg 02 Aug '16

02 Aug '16

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[Bfys-physics] paper 2016-038
by Patrick Koppenburg 28 Jul '16

28 Jul '16

Hi all, This paper is assigned to us, with deadline tomorrow. https://cds.cern.ch/record/2200803 I paste here my comments. Please let me know if someone else was looking at it, so we can merge comments. Else I'll submit tomorrow. Dear Xabier, Cédric, Murilo, Here are my comments on the paper. L.2: say why it is interesting. L.3: spell out SM. events -> cross-sections (or production) L:5: large momentum fraction of what? L.8: suggest to add some space between + and bb (or cc) L.22-35: This is too detailed for an introduction. At this level the reader does not want to know which flavour of BDT you used. This section could be moved to a separate section 3 and shortened here. L.23: extract -> determine L.33: cross-sections L.44: (natural units are used with c=1) L.76: The same L.78: max in roman L.104: I fail to understand this sentence L.111: I suggest to apply my suggestion to the CONF of using \ell to mean e or mu L.135: Fig. 1 L.142: is is L.171: extraction -> determination L.172. Why binned? And a fit to what? L.175: considering -> assuming that L.178: to the expected yields assuming the SM L.184: Wilks' Table 1: just -> only Fig.2: remove "data" L.190-191: this is not a sentence L.193: "matched with a beauty/charm quark" sounds odd. Tagged as beauty or charm? L.195: in Table 2 L.196: in Figure 6. Fig.2 and 3: W+bb and tt are indistinguishable in BW. Use colorbrewer2.org to define your colour scheme. L.200: add lumi uncertainty. L.201: collaboration. L.205+ : use align environment. References: - Take all LHCb refs from template - Add collaboration wherever needed [9] Use correct title from paper Cheers, Patrick -- ======================================================================== Patrick Koppenburg Nikhef, Amsterdam http://www.koppenburg.org/address.html

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Re: [Bfys-physics] First circulation of publication draft for PAPER-2016-027, Measurement of the $C\!P$-violating phase and decay-width difference in $B^0_s \to \psi(2S)\phi$ decays
by Gerco Onderwater 05 Jul '16

05 Jul '16

Dear all, I submitted our comments, which can be found on https://cds.cern.ch/record/2196763 <https://cds.cern.ch/record/2196763> Greetings, Gerco > On 23 Jun 2016, at 20:34, Michael Schmelling <Michael.Schmelling(a)mpi-hd.mpg.de> wrote: > > 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! > > Title : Measurement of the $C\!P$-violating phase and decay-width difference in $B^0_s \to \psi(2S)\phi$ decays > > Journal : PLB > Contact authors : Dianne_Ferguson, Greig_Cowan > Reviewers : Marcel_Merk (chair), > Paul_Seyfert > EB reviewer : Jeroen_van_Tilburg > EB readers : Nicola_Serra, Michael_Schmelling > Analysis note : ANA-2013-015 > Deadline : 7-Jul-2016 > e-group : lhcb-paper-2016-027-reviewers > Link : https://cds.cern.ch/record/2164477 > Authors : LHCb > Twiki : https://twiki.cern.ch/twiki/bin/view/LHCbPhysics/Bs2psi2Sphi > > The following institutes are requested to make institutional comments: > NIKHEF_VU__Netherlands__University_of_Groningen__Netherlands > Ferrara__Italy > Frascati__Italy > MPIK__Heidelberg__Germany > Manchester__United_Kingdom > Cagliari__Italy__Aachen__Germany > > > 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, > Michael > > -- > Michael Schmelling, MPI for Nuclear Physics > Phone:+49-6221-516-511 Fax:+49-6221-516-603 > > > > - Gerco Dr. C.J.G. Onderwater Van Swinderen Institute University of Groningen Nijenborgh 4 NL-9747 AG Groningen the Netherlands Tel. +31(0)50-3633557 / 8774

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[Bfys-physics] 5th force
by Patrick Koppenburg 08 Jun '16

08 Jun '16

Hi all, Some criticism of the Hungarian experiment : https://www.quantamagazine.org/20160607-new-boson-claim-faces-scrutiny/ Cheers, Patrick -- ======================================================================== Patrick Koppenburg Nikhef, Amsterdam http://www.koppenburg.org/address.html

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[Bfys-physics] Double pare for us
by Patrick Koppenburg 03 Jun '16

03 Jun '16

Hi all, We have two papers on the same analysis assigned to us: Title : Observation of exotic $J/\psi \phi$ structures from amplitude analysis of $B^+ \to J/\psi K^+$ decays Journal : PRL Contact authors : Thomas_Britton, Tomasz_Skwarnicki Reviewers : Wenbin_Qian (chair), Tim_Gershon EB reviewer : Nicola_Serra EB readers : Brian_Meadows, Simon_Eidelman Analysis note : ANA-2015-042 Deadline : 30-May-2016 e-group : lhcb-paper-2016-018-reviewers Link :https://cds.cern.ch/record/2153866 Authors : LHCb Twiki :https://twiki.cern.ch/twiki/bin/view/LHCbPhysics/B2JPsiPhiK The following institutes are requested to make institutional comments: Moscow_State_University__Russia LPNHE__Paris__France Firenze__Italy UFRJ__Rio_de_Janeiro__Brazil EPFL__Lausanne__Switzerland NIKHEF__Netherlands and Title : Amplitude analysis of $B^+\to J/\psi\phi K^+$ decays Journal : PRD Contact authors : Thomas_Britton, Tomasz_Skwarnicki Reviewers : Wenbin_Qian (chair), Tim_Gershon EB reviewer : Nicola_Serra EB readers : Brian_Meadows, Simon_Eidelman Analysis note : ANA-2015-042 Deadline : 30-May-2016 e-group : lhcb-paper-2016-019-reviewers Link :https://cds.cern.ch/record/2153867 Authors : LHCb Twiki :https://twiki.cern.ch/twiki/bin/view/LHCbPhysics/B2JPsiPhiK The following institutes are requested to make institutional comments: Moscow_State_University__Russia LPNHE__Paris__France Firenze__Italy UFRJ__Rio_de_Janeiro__Brazil EPFL__Lausanne__Switzerland NIKHEF__Netherlands Cheers, Patrick -- ======================================================================== Patrick Koppenburg Nikhef, Amsterdam http://www.koppenburg.org/address.html

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[Bfys-physics] Fwd: First circulation of publication draft for PAPER-2016-013, Measurement of the $C\!P$ asymmetry in $B^0_s-\overline{B}^0_s$ mixing
by Patrick Koppenburg 15 Apr '16

15 Apr '16

Hi all, A paper for us, with the slight annoyance that some of us are involved (that was a mistake, but decided not to fix it). Cheers, Patrick -------- Forwarded Message -------- Subject: First circulation of publication draft for PAPER-2016-013, Measurement of the $C\!P$ asymmetry in $B^0_s-\overline{B}^0_s$ mixing Date: Thu, 14 Apr 2016 10:33:23 +0200 From: Michael Schmelling <Michael.Schmelling(a)mpi-hd.mpg.de> To: LHCb General mailing list <lhcb-general(a)cern.ch> Dear Colleagues, A draft paper is available for your comments: Title : Measurement of the $C\!P$ asymmetry in $B^0_s-\overline{B}^0_s$ mixing Journal : PRL Contact authors : Jacco_de_Vries, Mika_Vesterinen, Marina_Artuso Reviewers : Thomas_Ruf (chair), Olaf_Steinkamp EB reviewer : David_Ward EB readers : Vincent_Tisserand, Michael_Schmelling Analysis note : ANA-2016-004 Deadline : 28-Apr-2016 e-group : lhcb-paper-2016-013-reviewers Link : https://cds.cern.ch/record/2146010 Authors : LHCb Twiki : https://twiki.cern.ch/twiki/bin/view/LHCbPhysics/Asls3fbFullDsKKPi The following institutes are requested to make institutional comments: NIKHEF_VU__Netherlands Ferrara__Italy Padova__Italy Maryland__USA 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, Michael -- Michael Schmelling, MPI for Nuclear Physics Phone:+49-6221-516-511 Fax:+49-6221-516-603

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[Bfys-physics] cake at 15:00
by Jeroen van Tilburg 13 Apr '16

13 Apr '16

Dear all, To celebrate that the asls analysis is now approved to go to paper, there will be cake at 15:00 in the coffee corner. Groeten Jeroen & Jacco

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[Bfys-physics] Fwd: [Nikhef-theory-seminar] Thursday: Miguel Nebot Gómez
by Robert Fleischer 05 Apr '16

05 Apr '16

FYI Cheers, Robert Begin forwarded message: > From: Franz Herzog <fherzog(a)nikhef.nl> > Subject: [Nikhef-theory-seminar] Thursday: Miguel Nebot Gómez > Date: 5 Apr 2016 17:52:11 GMT+2 > To: nikhef-theory-seminar(a)nikhef.nl > > Dear all, > > This Thursday, the 7th of April at 14:00 in room H331, we will have a seminar by Miguel Nebot Gómez from IFIC Valencia. > > Please find title and abstract below. > > Cheers, > > Franz > > > * * * > > > Title: > "Controlled flavour changing Higgs couplings in a class of two Higgs > doublet models" > > Abstract: > Enlarged scalar sectors such as two Higgs doublet models are an > interesting class of extensions of the Standard Model. Flavour changing > couplings of neutral scalar fields, if not tamed, may constitute a > serious source of concern attending to the impressive body of existing > experimental constraints. In particular, mixing of the different neutral > scalar fields present in such scenarios can yield a would-be Standard > Model 125 GeV scalar with (1) modified flavour conserving couplings, (2) > flavour changing couplings to (a) quarks in the up or down sectors, and > (b) charged leptons. Considering constraints from the LHC run I and from > flavour data, an analysis of a class of two Higgs doublet models where > flavour changing interactions arise in a symmetry-controlled manner is > presented. In particular, attention is devoted to the prospects for > flavour changing processes such as lepton flavour changing Higgs decays > $h\to \mu\tau$ (as hinted by LHC run I data), to decays to down quarks > $h\to bs,bd$ and to top decays $t\to hq$ of interest for LHC run II and > future colliders. > _______________________________________________ > Nikhef-theory-seminar mailing list > Nikhef-theory-seminar(a)nikhef.nl > https://mailman.nikhef.nl/mailman/listinfo/nikhef-theory-seminar

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