bfys-physics April 2016

bfys-physics@nikhef.nl

6 participants
5 discussions

[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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[Bfys-physics] Rehearsal talk Keri & Maarten for CCT
by Jeroen van Tilburg 05 Apr '16

05 Apr '16

Dear all, On Tuesday 5 April at 15:00 in H220, Keri and Maarten will rehearse their (combined) talk on CPT and Lorentz violation in B mixing for the Collider-Cross-talk seminar at CERN. These kind of talks are given on a white-board and are (mostly) without slides. Please come and help Keri and Maarten improve their talk. Groeten Jeroen

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[Bfys-physics] asls unblinded
by Jacco de Vries 01 Apr '16

01 Apr '16

Dear all, We are proud to present you the highly anticipated unblinded value of asls. Please keep it within the group for now, as we are yet to present the official LHCb result. In the attached plot you can see the new world average for asls (y-axis) as a green band, as well as the combined result for asld (x-axis) and the D0 dimuon anomaly (yellow ellips). We confirm the D0 result, and are in agreement with the SM prediction within 4.1 standard deviations. The deviation can most likely be attributed to an anomalous branching ratio of the Bs -> tau tau intermediate state, or processes involving the Z’ in the mixing. Cheers, on behalf of the asls crew, Jacco

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bfys-physics April 2016