Hi Michael-

It's OK with me.  There is some uncertainty about the LHC's ability to 
run at 25 ns (lower pileup), but we're not going to be the ones to 
settle it, and we're not the people in the best position to do detailed 
studies of expected detector response, but these are reasonable 
benchmarks (arguably the most reasonable ones), so I would not support 
doing anything about this.

Cheers,

Tom


On 3/7/2013 7:40 AM, Peskin, Michael E. wrote:
> Dear Colleagues,
>
> Finally, everyone concerned has gotten back to me, and we are ready to post the
> "Official Energy Frontier Facilities List".  The purpose of this list is to insure that
> all studies of a given machine are done with the same energy and luminosity
> assumptions, and that these assumptions are reasonable.
>
> You can find the list at:
>
> http://www.snowmass2013.org/tiki-index.php?page=EF+Facilities+List
>
> It is linked from the top Energy Frontier page.
>
> I would be grateful if all of you, and especially the Technical Group, would look
> at this list one more time before any errors in it become etched in stone.
>
> Chip and I strongly discourage the study of any machine option that is NOT
> on this list.   If you have a case for adding another option, please let us know.
>
> Thanks,
>
> Michael
>
>
> -------------------------------------------------------------------------------------------
>    Michael E. Peskin                           [log in to unmask]
>    HEP Theory Group, MS 81                       -------
>    SLAC National Accelerator Lab.        phone: 1-(650)-926-3250
>    2575 Sand Hill Road                       fax:     1-(650)-926-2525
>    Menlo Park, CA 94025 USA              www.slac.stanford.edu/~mpeskin/
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