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Re: [Sphenix-hcal-l] jet simulations with minimal frame
- From: John Lajoie <lajoie AT iastate.edu>
- To: pinkenburg <pinkenburg AT bnl.gov>
- Cc: Rosi Reed <rosijreed AT gmail.com>, "sphenix-jet-structure-l AT lists.bnl.gov" <sphenix-jet-structure-l AT lists.bnl.gov>, raghav AT physics.rutgers.edu, Songkyo Lee <songkyo.lee AT cern.ch>, "sphenix-hcal-l AT lists.bnl.gov" <sphenix-hcal-l AT lists.bnl.gov>
- Subject: Re: [Sphenix-hcal-l] jet simulations with minimal frame
- Date: Thu, 21 Sep 2017 20:12:11 -0500
Hi Chris, Can you point me to the macros? I have been running a
different analysis code from what Dennis uses to produce his
ntuples, and I would like to run that over the same Pythia8 events
he used to get a comparison. John On 9/21/2017 6:56 PM, pinkenburg wrote:
Hi John,I kicked those jobs off. condor is fairly busy right now but by tomorrow a bunch should be finished already. The output will be under: /sphenix/data/data02/rescope-2017-09-08/inner_hcal_support_ring/sHijing/<fm range> Chris On 9/20/2017 5:29 PM, John Lajoie
wrote:
Hi Chris P. (cc'd to hcal-l and jet-structure-l): In the HCAL meeting today we heard an estimate from the
engineers that a "minimal" frame to hold up the EMCal would be
a cylinder of SS310 stainless steel about 2"=5.08 cm in
thickness. This would be a little less than 1/3 of an
interaction length of material, which would be much less than
the full inner HCAL (at one interaction length) or an Al inner
HCAL (at about half an interaction length). We'd like to try something like this in the simulations
to see the effect on jet observables. Could you whip up a
macro to replace the inner HCAL with a cylinder of stainless
steel 5 cm in thickness? I think the most realistic would be
to have the cylinder inner radius so that it is at the inner
radius of the existing HCAL (snug up against the EMCal). It's
not clear to me what would be the most realistic, but this
would allow us to examine the effect of allowing the showers
to "open up" in the magnetic field in a region free from
absorber between the EMCal and the magnet cryostat. Depending
in what we find, we could adjust this to study other
implementations. I don't think we need to worry about storing
any G4hits, etc., in the material - we just need the material
there in place of the inner HCAL. Since a lot of study has already been done with the 10k
Pythia8 jets already produced by Dennis to study the SS310 and
Al inner HCAL, my goal would be to run these same events
through the modified simulations so we can make comparisons
between the studies that have already been done. Depending on
what we find we can go from there. Regards, --
John Lajoie Professor of Physics Iowa State University
(515) 294-6952 lajoie AT iastate.edu Contact me: john.lajoie -- ************************************************************* Christopher H. Pinkenburg ; pinkenburg AT bnl.gov ; http://www.phenix.bnl.gov/~pinkenbu Brookhaven National Laboratory ; phone: (631) 344-5692 Physics Department Bldg 510 C ; fax: (631) 344-3253 Upton, NY 11973-5000 ************************************************************* Contact me: john.lajoie |
-
[Sphenix-hcal-l] jet simulations with minimal frame,
John Lajoie, 09/20/2017
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Re: [Sphenix-hcal-l] jet simulations with minimal frame,
pinkenburg, 09/21/2017
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Re: [Sphenix-hcal-l] jet simulations with minimal frame,
John Lajoie, 09/21/2017
- Re: [Sphenix-hcal-l] jet simulations with minimal frame, pinkenburg, 09/21/2017
-
Re: [Sphenix-hcal-l] jet simulations with minimal frame,
John Lajoie, 09/21/2017
-
Re: [Sphenix-hcal-l] jet simulations with minimal frame,
pinkenburg, 09/21/2017
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