I just received this message from Tom Kirk. I will let you ponder on this,
but since this is done with very short notice, and have send Tom a reply
this evening, particular since I will not be at BNL until ~ 3pm (if at all)
tomorrow.
The reply will be forwarded to you in the subsequent mail.
If you have additional comments please reply to me and Dana who will be
present at the meeting tomorrow.
regards
Flemming
------------------------------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory
tlf: 631-344-4106
fax 631-344-1334
e-mail: videbaek@bnl.gov
----- Original Message -----
From: "tom kirk" <tkirk@bnl.gov>
To: "Busza, Wit" <busza@mit.edu>; "Harris, John" <John.Harris@yale.edu>;
"Videbaek, Flemming" <videbaek@bnl.gov>; "Zajc, Bill" <zajc@columbia.edu>
Cc: "Lowenstein, Derek" <lowenstein@bnl.gov>; "Roser, Thomas"
<roser1@bnl.gov>; "Pile, Phil" <Pile@bnl.gov>; "Aronson, Sam"
<aronson2@bnl.gov>; "Kirk, Tom" <tkirk@bnl.gov>; "Drees, Angelika"
<drees@bnl.gov>; "Kirk, Tom" <tkirk@bnl.gov>
Sent: Tuesday, November 13, 2001 5:47 PM
Subject: RHIC Au x Au Running at 22 GeV
> . November 13, 2001
>
> Dear Wit, John, Flemming and Bill:
>
> As I believe all of you know (by conversation with me
> or by the grapevine), PHOBOS has proposed to have a
> 24-hour run of RHIC at 22 GeV to establish a low-
> energy point for RHIC Au x Au data. This point would
> be free of the systematic errors heretofore used to
> compare low energy data from SPS and other sources
> with RHIC data. So far, there is only an official
> letter proposal from PHOBOS, but if we go ahead with
> the proposed 22 GeV run, I would sincerely hope that
> the other RHIC experiments would also take data.
>
> After having had my interaction about 22 GeV running
> with Wit Busza, I was visited by Dmitri Kharzeev, who
> also strongly advocated the physics value of this run.
> Dmitri also sent me a letter with his physics arguments
> which I supply to you here as an attachment (actually,
> it is only a fair copy that my secretary keyed in from
> the original). I found Dima's arguments pursuasive.
>
> Thus, I would like to discuss with representatives of
> the four RHIC experiments tomorrow at the 1:30PM RHIC
> Meeting at C-AD, the feasibility and consequences of
> adding this run to the Au x Au run schedule. Since we
> are on very short funding rations, this run would NOT
> extend the total Au run. I hope each of the RHIC
> experiments will be represented for a discussion of
> the PHOBOS letter proposal tomorrow. To start off the
> discussion, Thomas Roser has agreed to summarize the
> machine aspects of a 22 GeV run. They will include
> beta* of 10 Meters (injection value) at all interaction
> points and may have very short luminosity lifetimes.
> Thomas will go over these and other germane accelerator
> considerations.
>
> I am biased in favor of approving this run for 22 GeV
> for 24 hours. Still, I want to hear the views of all
> four RHIC groups and, if the run takes place, whether
> all four groups could and would take data.
>
> See you tomorrow!
>
> Sincerely, Tom Kirk
>
> Cc: D. Lowenstein
> T. Roser
> P. Pile
> A. Drees
> S. Aronson
This archive was generated by hypermail 2b30 : Tue Nov 13 2001 - 21:19:34 EST