Folks: Here are minutes of today's meeting: Best wishes, Michael
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Energy Frontier Conveners' meeting May 23, 2013
present: Michael P., Markus, Tom Le C., Heather, Ashutosh, Jianming, Andrei G., Ken H., Kaustubh, Meenakshi, Sanjay, Andy White, Soren, Yuri G.
I apologize for my difficulty in running the phone meeting. I did this away from SLAC, using my phone in what seemed to be a quiet corner of a mall in Palo Alto, in front of a cheese shop. At 11:30 PDT, more or less the entire senior class of Palo Alto High School descended on this shop to buy sandwiches.
1. Schedule for the Seattle meeting.
This seems to be almost settled. The speakers will be
Monday morning plenary: (45' each)
ATLAS - TBA
CMS - Jim Olsen
Linear Collider - Sachio Komamiya
Future Facilities - Mark Palmer
Frontiers Overlap session: (30' each)
Quark Flavor - Jure Zupan
Lepton Flavor violation - Kaladi Babu (remote)
Baryogenesis - Ann Nelson
Dark Matter - Manoj Kaplinghat
Panel Discussion:
Beate Heinemann
Christopher Hill
Jim Brau
Ron Lipton
Lian-Tao Wang
TBA
2. Status of the background simulations.
Sanjay Padhi reported on the background generation for hadron collider studies. Sanjay and Meenakshi, their team at CMS/LPC -- Marko Slyz, James Hirschauer, Aram Avestisyan, and John Stupak -- and a group of SLAC theorists -- Kiel Howe, Tim Cohen, and Jay Wacker -- have been working hard on providing a large sample of relevant background events with tails of distributions accurate enough for 3000 fb-1 studies. Sanjay has circulated a set of slides on the current status. Anyone who did not receive these slides should let Michael know.
The last complications are
(1) they would like to go to DELPHES 3.0.8 to improve the generation speed. This does not affect the detector parameters, so events already passed through DELPHES are OK. Sanjay gives links to the new cards on his slides.
(2) weighting of background events with correct K-factors. John Campbell is working with the SLAC group on this.
Sanjay promises samples of 14 TeV events substantial enough to begin studies by Thursday of next week (!!!). In the meantime, there are millions of simulated events in the repository at Nebraska, so people who are planning to use these backgrounds can begin testing their code. The URL of the Nebraska repository is given on Sanjay's last slide.
Chip and I send deep thanks to all involved.
Please keep us informed of any problems that you have with this repository. Chip and I would also appreciate ideas on how to keep this data repository alive after Snowmass. It will be useful in the future for additional hadron collider studies.
3. Limit-setting.
Ashutosh sent a question about limit-setting. At Brookhaven, we agreed that limits would be based on some form of a CLs estimate, but that we would leave the details to each individual author. However Ashutosh asks whether public-domain software is available as an alternative to the proprietary ATLAS and CMS limit-setting software. Meenakshi points to the ROOT package theta , available at
http://www-ekp.physik.uni-karlsruhe.de/~ott/theta/theta-auto/
An example is given as part of the package. It also has some nice output html pages which display the results.
4. Proposed sessions for the Minnesota meeting
The Frontier conveners are grappling with the problem of what to actually do at Snowmass, especially in the days between the first and last days of plenary talks. The intermediate days will be filled with plenary sessions, and these should be structured to promote discussions that cross the Frontier boundaries. Chip and Michael proposed a list of these. There was a strong consensus that a new item should be added, a session on the idea of "naturalness". This makes an interesting list of 10 sessions that we will propose.
Thanks to all!
Next week is the Snowmass at KITP meeting, May 29-31, which many of us will attend. So we will cancel next week's meeting. Our next meeting is on Thursday June 6 at the usual time, 11 am PDT, 2 pm EDT
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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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