U.S. ATLAS HL-LHC Upgrade Level 2 and Deputies-NSF only Management Mailing List

[Elliot Lipeles <lipeles AT hep.upenn.edu>]

Hi all,

I think it would be worth mentioning hear and in the other non-trigger WBS items and physics overview that the 1 MHz readout is key to keeping low trigger thresholds enabling a lot of physics. I.e. 1 MHz is a key specification for Tile, LAr, and Muons (and ITK but not relevant for NSF), which enables all the triggers. There would be major degradation to all triggers if not included. I have a quantitive example in my failure to meet specs slide last line of table below...

Elliot

On Thu, Aug 8, 2019 at 2:34 PM Gustaaf Brooijmans <gusbroo AT nevis.columbia.edu> wrote:

Hello all,

Here's the example from Tile.  I think it's pretty good.  (Sl 6 should
probably say "Impact of not meeting specs")

If you have ideas/comments to further improve, please do send.  We want
to make the strongest possible case.

Best,

Gustaaf

-------- Forwarded Message --------
Subject:        Tile Flowdown slides Fwd: Re:
[Usatlas-hllhc-l2deputymgmt-nsf-l] FDR Flow-down help
Date:   Tue, 6 Aug 2019 09:20:22 -0500
From:   Mark Oreglia <oreglia AT uchicago.edu>
To:     Gustaaf Brooijmans <gusbroo AT nevis.columbia.edu>



This is what we came up with so far.



  > On Aug 5, 2019, at 4:37 PM, Gustaaf Brooijmans
<gusbroo AT nevis.columbia.edu> wrote:
  >
  >
  > Hello all,
  >
  > Apologies for sending so many emails.  Could you, to help address
the flow-down question, prepare a few slides per deliverable on
  >
  > -how do the specs related to physics gains, and why are those spec
numbers good?  (Usually a balance between physics gain and
feasibility/cost.)
  > -if the spec performance is different than planned, how does that
impact physics?  (For LAr there is the Higgs mass peak plot for
example.  For trigger, I would imagine we're talking trigger
acceptance.  In muons there's the eta-phi coverage map Sarah showed,
...  I'm guessing each TDR has a few useful plots.)
  >
  > This request is already in the todo sheet sent earlier, but I wanted
to add some more information.
  >
  > Thanks,
  >
  > Gustaaf
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