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LQS-L  July 2009

LQS-L July 2009

Subject:

Re: LQS meeting, **2 PM** Eastern, Thursday, July 16, 2009

From:

Frank Taylor <[log in to unmask]>

Date:

16 Jul 2009 10:50:05 -0400 (EDT)Thu, 16 Jul 2009 10:50:05 -0400 (EDT)

Content-Type:

TEXT/PLAIN

Parts/Attachments:

Parts/Attachments

TEXT/PLAIN (74 lines)

Dear All,

Since the meeting will be at 8:00 PM Geneva time I'll try to connect by 
Skype from home (France) but may have limited bandwidth. 

In case the connection is bad my LHC report is that vacuum leaks have been 
found in 2 cold sectors which will necessitate a partial warmup. The note 
from the DG is at this URL:

http://user.web.cern.ch/user/news/2009/090716.html

The bottom line is that the LHC will be closed up and ready for beam
around mid-November if no more problems are found. On that front the 80K
resistance measurements still have to be done on 3 sectors. If a high
resistance is found in the copper buss then the whole sector will have to
be warmed up to 300K.  That would make for an even longer shutdown.

All indications are that the startup will be a long and difficult 
campaign so such reports as this one are not unexpected. 

Ellen and I just had a long weekend when we visited the battle fields of
Verdun and went inside the largest installation of the Maginot Line. I'm
trying hard to not associate the battle of attrition at Verdun in 1916 and
Maginot's strategy of 1940 with the LHC.

For those interested: http://en.wikipedia.org/wiki/Battle_of_Verdun

Best regards,

        Frank

	Frank E. Taylor

        CERN                                      MIT 
        ATLAS Collaboration                       Bldg. 26 - Rm 569
        188-3-015                                 77 Mass. Ave.
        Route de Meyrin 385, CH-1211 Geneva 23    Cambridge, MA 02139
        Switzerland                               USA
        Office: +41-22-767-6373                   Office: 617-253-7249
        FAX: +41-22-767-8350                      FAX: 617-258-6923

        CELL:  857-891-8579 (USA & Europe) CERN CELL +41 76 487 3563
        email: [log in to unmask]
        web:   http://www2.lns.mit.edu/~fet/atlas_mit.html

On Wed, 15 Jul 2009, Ray F. Cowan wrote:

> Hi Everyone,
> 
> This week we meet at **2 PM Eastern** on Thursday, July 16, for
> our weekly LQS meeting.  Dial-in is 510-665-5437, passcode 7336.
> 
> After round-table reports, we'll start our MIT review of BAD 2222, v6,
> on "Analysis of the decays tau --> Ks pi nu and tau --> Ks pi pi0 nu using 
> the BaBar detector".  The paper is a "physics note", which means it will
> be used by BaBar speakers preparing conference talks, but will not be 
> published nor released to the public--so we only need to comment on the
> physics and not at all on the grammar or style.
> 
> Our review is due July 22, so we'll start it this week and if needed 
> finish up next week.
> 
> The meeting website is:
> http://dmtpc.mit.edu/MaKaC/conferenceDisplay.py?confId=187
> The paper is available on the meeting page and is also attached.
> 
> Hope you can join us.
> 
> Thanks much,
> --Ray
> 


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