bfys-physics January 2014

bfys-physics@nikhef.nl

4 participants
8 discussions

[Bfys-physics] Bfys Meeting Friday 18 january at 9:30 in N328 and on EVO
by Tjeerd Ketel 09 Jun '14

09 Jun '14

Bfys Meeting Friday 18 january at 9:30 in N328 and on EVO* Paper introduction and discussion: 9:30 "A search for D+(s) to pi+mu+mu- and D+(s) to pi-mu+mu+ decays" by Francesco Dettori http://cds.cern.ch/record/1504407 Veldhoven rehearsals: 10:30 "A new window for new physics in Bs decays to two muons" by Rob Knegjens 11:00 "The Bs meson decay in two muons: a search for rare beauty" by Serena Oggero 11:30 "Measurement of the angle gamma in the unitary triangle in time-dependent Bs to DsK decays at the LHCb experiment" by Manuel Schiller The presentations will be available (protected under lhcb, etc.) on the Nikhef agenda page and comments can be directly mailed to the speakers. Best regards, Tjeerd *)Today Vidyo could not provide the same service as EVO in our meeting room at Nikhef, therefore I decided to book this meeting again on EVO. Universe is the community, as LHCb has been removed. As a test we can open a room in Vidyo on Friday at 12:00. ========================================================= http://agenda.nikhef.nl/conferenceDisplay.py?confId=2361 ========================================================= You have BOOKED a meeting in SeeVogh Research Network (http://research.seevogh.com). Title: Nikhef Description: Bfys Meeting 9:30-12:00 Community: Universe Password: n328 Meeting Access Information: - Meeting URL SeeVogh R.N. http://research.seevogh.com/join?meeting=MsMiMI2u2IDnDe999aDt9s EVO International http://evo.caltech.edu/evoNext/koala.jnlp?meeting=MsMiMI2u2IDnDe999aDt9s - Password: n328 - Phone Bridge ID: 627 7875 Password: 6287 =========================================================

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[Bfys-physics] New PAPER-2014-002 for Nikhef, Study of beauty hadron decays into pairs of charm hadrons and observation of $\Lambda_b^0\to\Lambda_c^+D_{(s)}^-$
by Tjeerd Ketel 10 Feb '14

10 Feb '14

Dear all, We just received a new paper for Nikhef. I propose to discuss it at Friday 7 February. Please, let me know if you are willing to introduce the paper. Best regards, Tjeerd

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[Bfys-physics] Bfys Meeting Friday 31 January at 9:30 in !!! N328 !!!
by Tjeerd Ketel 04 Feb '14

04 Feb '14

Dear colleagues, Bfys Meeting Friday 31 January at 9:30 in !!! N328 !!! and Vidyo 9:30 - 10:15 Introduction and discussion by Diego of PAPER-2014-003: Precision measurement of the $\Lambda_b^0/\overline{B}^0$ lifetime ratio https://cds.cern.ch/record/1643936 10:15 - 11:00 Introduction and discussion by Maurizio of PAPER-2014-001: Observation of photon polarization in $B^\pm\to K^\pm\pi^\mp\pi^\pm\gamma$ decays https://cds.cern.ch/record/1644210 We succeeded to get N328 and we can continue until 12:00, if needed. The material can be found at http://agenda.nikhef.nl/conferenceDisplay.py?confId=2799 and will be protected by lhcb, etc. Vidyo link in Nikhef Bfys Meeting (at Institutes->Nikhef of Friday 21 June 2013) https://indico.cern.ch/conferenceDisplay.py?confId=255991 protected by PIN 1328. Best regards, Tjeerd

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[Bfys-physics] Bfys Meeting Friday 31 January in H331 and Vidyo
by Tjeerd Ketel 24 Jan '14

24 Jan '14

Dear colleagues, Bfys Meeting Friday 31 January in H331 and Vidyo 9:15 - 9:40 Staff meeting (only permanent staff) 9:45 - 10:45 Discussion of two LHCb papers: PAPER-2014-003: Precision measurement of the $\Lambda_b^0/\overline{B}^0$ lifetime ratio https://cds.cern.ch/record/1643936 PAPER-2014-001: Observation of photon polarization in $B^\pm\to K^\pm\pi^\mp\pi^\pm\gamma$ decays https://cds.cern.ch/record/1644210 We need a person per paper to take care of the collection of comments and to communicate them to the contact authors before the deadline. Please, let me know if you are willing to do so. There will be little time for discussion, therefore, also give comments by e-mail in advance. If I succeeed to change to N328 we may continue until 12:00. The material can be found at http://agenda.nikhef.nl/conferenceDisplay.py?confId=2799 and will be protected by lhcb, etc. Vidyo link in Nikhef Bfys Meeting (at Institutes->Nikhef of Friday 21 June 2013) https://indico.cern.ch/conferenceDisplay.py?confId=255991 protected by PIN 1328. Best regards, Tjeerd

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[Bfys-physics] Fwd: no SL5 on stoomboot. final reminder.
by Gerhard Raven 23 Jan '14

23 Jan '14

WARNING: last change to object! Unless you object before the weekend, this _will_ happen. — Gerhard Begin forwarded message: > From: Jeff Templon <templon(a)nikhef.nl> > Subject: [Stbc-users] preliminary conclusion : no SL5 on stoomboot. final reminder. > Date: 23 Jan 2014 11:00:18 GMT+1 > To: "stbc-users(a)nikhef.nl Stomboot MailList" <stbc-users(a)nikhef.nl> > Cc: "stbc-admin(a)nikhef.nl" <stbc-admin(a)nikhef.nl>, programmaleiders(a)nikhef.nl > > Beste Users and Program Leaders, > > So far, nobody told us that they will need SL5 on the upgraded stoomboot. > Furthermore, we've received information from both ATLAS and LHCb that their > "official" code is guaranteed to be compatible with SL6. Our conclusion is > that SL5 is *unnecessary* on the upgraded stoomboot; we plan to upgrade the > entire cluster to SL6 (including all interactive nodes). > > If you disagree with this statement you have until tomorrow afternoon (Friday > 24th) to let us know! > > Original message below. > > Jeff and Ronald > > As announced at the jamboree, the stoomboot cluster will be upgraded. Most > of the installation is finished; before we can proceed in enabling the > expanded cluster, we need to decide how to partition the cluster. The > problem is illustrated in the figure below. > > > > Some of the nodes will have no glusterFS access because the glusterFS service is > not being expanded at this time; it would not be able to handle simultaneous > file accesses from all nodes of the expanded cluster. > > When upgrading the cluster we would prefer, for maintenance reasons, to > upgrade the operating system to SL6 at the same time. We understand that > some users may still require access to SL5; indications are that these same > users will also need access to the GlusterFS service, which is why the > picture is drawn as it is (no SL5 partition without GlusterFS access). We > would like to hear from the following users: > > - users who need glusterFS and who can work either on SL5 OR SL6 > - users who need glusterFS access and who would prefer or even require SL6 > - users who need glusterFS access and who absolutely cannot run on SL6 > - users who do not need glusterFS access and who cannot run their code on SL6 > > With this information we can determine where to draw the boundaries. > > *Please send your replies before Friday, January 24th per email to > stbc-admin(a)nikhef.nl* > > We remind you that an interactive node running SL6 is available for testing: > stbc-isl6.nikhef.nl > > Note our current plans are to upgrade two of the existing interactive > stoomboot nodes to SL6, leaving the other two on SL5. > > Providing legacy support for SL5 is a temporary situation; new developments > should not rely on SL5 support! > > We will organise a short presentation / Q&A session sometime in the coming > weeks to introduce the new features of the system. > > JT and RonaldS > > _______________________________________________ > Stbc-users mailing list > Stbc-users(a)nikhef.nl > https://mailman.nikhef.nl/mailman/listinfo/stbc-users

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[Bfys-physics] Nikhef discussion of LHCb PAPER-2014-003, Precision measurement of the $\Lambda_b^0/\overline{B}^0$ lifetime ratio
by Tjeerd Ketel 21 Jan '14

21 Jan '14

Dear all, If somebody can prepare an introduction before this week Friday 24 January we can discuss it this Friday. Otherwise we will arrange for a discussion on 31 January short before the deadline of 3 February. Please, let me know. Best regards, Tjeerd

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[Bfys-physics] Fwd: SL5, SL6, glusterfs & stoomboot : request for user information
by Gerhard Raven 21 Jan '14

21 Jan '14

Dear bfys-physics members, please see below for the plan to upgrade stoomboot to SL6 — you are probably either not interested (if so, apologies for the spam), or getting this now for (at t least) the 2nd time (because if you’re interested, you’d be on the sbc-users mailing list). If you have reasons to think that the proposal below would have an unreasonable impact on your work, please respond ASAP, as no reply will be taken as (implied) consent to the proposal! Note that there already is (has been for some time already) an interactive node, stbc-isl6, which serves as a ‘preview’ of what to expect, so you can use it to verify that your workflow works (or can be adapted to) SL6. Cheers, — Gerhard Begin forwarded message: > From: Jeff Templon <templon(a)nikhef.nl> > Subject: [Stbc-users] SL5, SL6, glusterfs & stoomboot : request for user information > Date: January 21, 2014 at 12:47:21 GMT+1 > To: "stbc-users(a)nikhef.nl Stomboot MailList" <stbc-users(a)nikhef.nl> > Cc: "stbc-admin(a)nikhef.nl" <stbc-admin(a)nikhef.nl>, programmaleiders(a)nikhef.nl > > Beste Users and Program Leaders, > > [ This is a reminder to stbc-users ; programmaleiders, this was sent already on 17 january but I did not have permission to send mail to the programmaleiders list. Also note : we have yet to hear from anyone who has a requirement for SL5 plus glusterFS access, nor from anyone who needs SL5 at all. Based on current input, we could upgrade the entire cluster to SL6. So if you need SL5 please read below and then answer before Friday! ] > > As announced at the jamboree, the stoomboot cluster will be upgraded. Most > of the installation is finished; before we can proceed in enabling the > expanded cluster, we need to decide how to partition the cluster. The > problem is illustrated in the figure below. > > > > Some of the nodes will have no glusterFS access because the glusterFS service is > not being expanded at this time; it would not be able to handle simultaneous > file accesses from all nodes of the expanded cluster. > > When upgrading the cluster we would prefer, for maintenance reasons, to > upgrade the operating system to SL6 at the same time. We understand that > some users may still require access to SL5; indications are that these same > users will also need access to the GlusterFS service, which is why the > picture is drawn as it is (no SL5 partition without GlusterFS access). We > would like to hear from the following users: > > - users who need glusterFS and who can work either on SL5 OR SL6 > - users who need glusterFS access and who would prefer or even require SL6 > - users who need glusterFS access and who absolutely cannot run on SL6 > - users who do not need glusterFS access and who cannot run their code on SL6 > > With this information we can determine where to draw the boundaries. > > *Please send your replies before Friday, January 24th per email to > stbc-admin(a)nikhef.nl* > > We remind you that an interactive node running SL6 is available for testing: > stbc-isl6.nikhef.nl > > Note our current plans are to upgrade two of the existing interactive > stoomboot nodes to SL6, leaving the other two on SL5. > > Providing legacy support for SL5 is a temporary situation; new developments > should not rely on SL5 support! > > We will organise a short presentation / Q&A session sometime in the coming > weeks to introduce the new features of the system. > > JT and RonaldS > > _______________________________________________ > Stbc-users mailing list > Stbc-users(a)nikhef.nl > https://mailman.nikhef.nl/mailman/listinfo/stbc-users

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[Bfys-physics] Bfys Meeting Friday 17 january 9:15 in H331 and Vidyo
by Tjeerd Ketel 14 Jan '14

14 Jan '14

Dear colleagues, Bfys Meeting Friday 17 january in H331 and Vidyo 9:15 - 9:40 Staff meeting (only permanent staff) 9:45 - 10:45 Rehearsal presentation for Veldhoven "Beauty and charm at the LHC: searches for TeV scale phenomena in flavour transitions" by Jeroen van Tilburg The presentation can be found at http://agenda.nikhef.nl/conferenceDisplay.py?confId=2783 and will be protected by lhcb, etc. Vidyo link in Nikhef Bfys Meeting (at Institutes->Nikhef of Friday 21 June 2013) https://indico.cern.ch/conferenceDisplay.py?confId=255991 protected by PIN 1328. Best regards, Tjeerd

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bfys-physics January 2014