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Dear Joe,<br>
<br>
On my side I will be available anytime for the experiment.<br>
I think that we should push to have option a) or c). As you said we
are a small collaboration and we can not lost expertise on what ever
side of<br>
the experiment (I'm thinking about Erica, and may be other
students). Option b), due to smaller number of people, will be
challenging<br>
concerning commissioning/staffing the experiment and we may spend
more time to reach our goal.<br>
Having a successful experiment with 14 days in may is (almost)
obvious, having a successful experiment with 14 days in fall is
feasible but very hard.<br>
<br>
Between a) and c), I miss information to give my feeling. Are we
expecting some beam time (during MD) to commission the beam line and
possibly<br>
have some electrons in the polarimeter (at least for few minutes)?<br>
If yes option a) is better, if no we need option c) with at least 9
days in may to make everything working,<br>
polarisation measurement on electron and few (2 or 3) positron
measurements.<br>
Then Fall run for 5 days will only be to increase statistic and to
do remaining positron measurements.<br>
<br>
Best regards,<br>
<br>
Jean-sebastien.<br>
<br>
On 12/14/11 23:34 , Joe Grames wrote:
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Dear PEPPo Collaborator,<br>
<br>
Scheduling the PEPPo experiment during the 12MSD is a hot topic,
in both the good and bad sense. It is a positive thing in the
sense that the hard work to install PEPPo and successfully defend
the PAC proposal has put a legitimate foot in the door to request
this time. It is bad, I believe, only in the sense that
scheduling the experiment during 12MSD is logistically
difficult. A short time ago I presented to the 12MSD team our
beam and clock hour requirements, and now they are seeking to
understand the pros and cons of when (not if!) our experiment is
scheduled.<br>
<br>
There are likely three options that will be weighed against one
another; a) delaying 12MSD activities at the INJ/NL by 2-3 weeks
to allow the full experiment to occur beginning mid-May, b)
postponing the experiment into the Fall (September/October?) time
frame w/ potentially less constraint on the total number of
days/shifts we can run, and c) a compromise of these two,
providing for a short commissioning run (days to a week) in
mid-May, with the balance of the run occurring later in the
shutdown.<br>
<br>
Although we are described as a hard working collaboration, we are
indeed small and staffing the experiment is a factor. I realize
this is short notice, but can you please take a moment to send me
a brief note detailing your <i>unavailability </i>to participate
in the experiment from May thru December of 2012. This can be
teaching conflicts, unchangeable plans, terms of service/contact
that expire, etc. Effectively, your availability to travel to
JLAB for extended period of time and perform the experiment. In
addition, please comment on any other pros/cons which you believe
impact when the experiment might be performed.<br>
<br>
You may reply to the entire collaboration list, but at a minimum
please send e-mail to myself and Eric.<br>
<br>
Best,<br>
Joe<br>
<br>
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PEPPo mailing list
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</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
Jean-Sébastien Réal
Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
53 avenue des martyrs, 38026 GRENOBLE cedex, France
tel: (33)(0)4.76.28.41.75, fax: (33)(0)4.76.28.40.04
<a class="moz-txt-link-freetext" href="http://lpscwww.in2p3.fr/hadrons/hadrons.html">http://lpscwww.in2p3.fr/hadrons/hadrons.html</a>
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