Past ATLAS Support Center Events

3 months 1 week ago

This year's US ATLAS Hadronic Final State Forum (HFSF2017) takes place at Southern Methodist University. The workshop is open to all (US) ATLAS collaborators. The workshop organization follows previous meetings of this series. More program details will be announced as they become available.

4 months 4 weeks ago
SLAC / CERN and Vidyo
The workshop aims are to discuss and review the status of VBF/VBS analyses within US ATLAS, and to identify deliverables to optimize their physics reach. This workshop takes place at SLAC with Vidyo connection to CERN. The meeting is open to all (US) ATLAS collaborators. More program details will be announced as they become available.
Michigan: Bing Li, Matt Klein
Duke: Sourav Sen and Shu Li
BNL: Claire Lee, Lailin Xu, Viviana Cavaliere
Indiana: Sabine Lamiers and Christian Johnson 
Stanford: Zihao Jiang 
Chicago: Rui Zou 
Pittsburgh: Ben Carlson, Andy Aukerman, Tae Min Hong 
Stony Brook: Chris Hayes 
SLAC: Aviv Cukierman, Francesco Rubbo, Ariel Schwartzman 
Gottingen (not US ATLAS, but people outside were interested too, so that's good): Antonio de Maria  
Follow up and Impact (by Ben)
A number of points raised in the workshop have led to future work. My own focus has been on implementing a VBF trigger. I have spent the last few months implementing the VBF triggers we discussed at the workshop, and the support from the VBF/VBS working group has been critical in this effort. For example, as a result of the workshop, I can now point to a broad set of use cases for VBF triggers. This topic was also discussed at the December physics workshop (see a slide or two from David Strom [2]). 
In terms of offline, I think Matt can comment more, but my opinion is that the general survey information we received has been very useful in identifying areas where offline improvements will improve VBF analyses. Matt gave a nice summary talk, also in the December physics workshop, where much of the information was drawn from the USATLAS VBF/VBS meeting [1]. 


5 months 3 weeks ago
SLAC and Vidyo

Lennart Adam, a graduate student visiting from Mainz, attended the CTEQ Summer School earlier this summer, and he will tell us some of the things he learned there that are potentially useful for anyone doing an ATLAS analysis. Please see abstract below:

This talk will summarize a selection of topics covered by this year's CTEQ Summer School held in Pittsburgh, PA. The main focus will be on Parton Distribution Functions (PDFs), i.e. a brief introduction to the general properties of PDFs and how to retrieve these from different measurements. As an experimentalist, I will aim to present recent developments of PDF creation from the point of view of an ATLAS analyzer. The second topic of this talk will be a short comparison of the main MC generators (Pythia, Sherpa and Herwig), also seen from the experimentalist's perspective. 

It is anticipated that there will be no ATLAS internal material presented. 


10 months 3 days ago

This Machine Learning and b-tagging workshop targets improvements in b-jet identification, including its basic impact parameter and vertex reconstruction algorithms, which can be gained from ML tools such as deep learning, sequence learning and domain adaptation techniques. Within ATLAS, modern ML techniques have begun to be studied for b-tagging but have yet to be fully understood and exploited. 

The workshop will introduce modern ML and b-jet identification algorithms to participants through talks and tutorials, while most of the workshop time will be dedicated to working on projects proposed by participants or meeting organizers. The may include the use of Recurrent Neural Networks and sequence learning algorithms for impact-parameter or secondary/tertiary vertexing algorithms, integration of new ML techniques into high-level b-taggin algorithms like MV2 and DL1, mitigating systematics of the high-level tagger at training time, or the development of new double b-tagging algorithms. 


10 months 1 week ago

The 2017 MC4BSM meeting will be held at SLAC from Thursday, May 11, 2017 through Saturday, May 13, 2017. This is a satellite meeting afterwards for (US) ATLAS. 

This ASC event has been canceled. 

1 year 3 months ago

This meeting is focused on using Geant4 to understand the response of MicroMega chambers to low-energy neutrons and photons, which are the dominant background in the New Small Wheel. Interested participants should have some familiarity with standalone Geant4. They should apply for a SLAC computer account before arrival. 

1 year 3 months ago

The 2016 US ATLAS Hadronic Final State Forum (HFSF2016) takes place at SLAC National Accelerator Laboratory. The workshop is open to all (US) ATLAS collaborators. The workshop organization follows previous meetings of this series. More program details will be announced as they become available.

1 year 5 months ago

The 2016 Fall testbeam run tested three sets of devices:

  • FE65_P2 prototype
  • RTI bump-bonded CP6 planar sensors
  • Irradiated LUB1 and LUB2