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2019:groups:sm:start [2019/05/27 21:28]
ben.nachmann
2019:groups:sm:start [2019/06/18 12:25]
daniel.maitre
Line 4: Line 4:
        ​*[[2019:​participants:​nlm_s1|Present in Les Houches in session 1]]        ​*[[2019:​participants:​nlm_s1|Present in Les Houches in session 1]]
        ​*[[2019:​participants:​nlm_global|The Global List including all registered participants for the SM WG]]        ​*[[2019:​participants:​nlm_global|The Global List including all registered participants for the SM WG]]
- 
  
 ===TOPICS=== ===TOPICS===
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     *ntuples for NNLO     *ntuples for NNLO
  
-  ​* **Jets**We have made a special e-group for anyone who wants to join these discussions:​ [[https://​simba3.web.cern.ch/​simba3/​SelfSubscription.aspx?​groupName=houches-2019-topics-jets|houches-2019-topics-jets]]. ​ There is also a slack channel: [[https://​join.slack.com/​t/​jetsatleshouches2017/​shared_invite/​enQtNjQ5MTQxODc5MTExLWU2OGE3NzUyZWI0YWJlOWYzOTM1Yjc2YTNhYjQzOTJmZjNlYTQ4OTVmMTA2OTIyNWQ2N2Y4NWVlOTZlYjkwZTU|Invite Link]]. In terms of topics, this is what we have brainstormed so far:+=== Projects === 
 + 
 +Please add your projects/​names to this list 
 + 
 +  ​[[ NNLO nTuples ]] 
 +  ​[[ PDF benchmarking ]] 
 +  ​[[ Photon isolation ]] 
 +  ​[[ NNLO subtraction prospects for 2 --> 3]] 
 +  ​[[ Wishlist update ]] 
 +  * Log(R) study? 
 +  * analytical reconstruction?​ Stability of expressions?​ 
 + 
 +=== Jets === 
 + 
 +We have made a special e-group for anyone who wants to join these discussions:​ [[https://​simba3.web.cern.ch/​simba3/​SelfSubscription.aspx?​groupName=houches-2019-topics-jets|houches-2019-topics-jets]]. ​ There is also a slack channel: [[https://​join.slack.com/​t/​jetsatleshouches2017/​shared_invite/​enQtNjQ5MTQxODc5MTExLWU2OGE3NzUyZWI0YWJlOWYzOTM1Yjc2YTNhYjQzOTJmZjNlYTQ4OTVmMTA2OTIyNWQ2N2Y4NWVlOTZlYjkwZTU|Invite Link]]. In terms of topics, this is what we have brainstormed so far:
  
-  ​* **Where is quark/gluon discrimination actually useful?** Examples:  +    ​* **Where is quark/gluon discrimination actually useful?​** ​One complication is that many other analysis selections are already purifying the selection (e.g. requiring two forward jets with large mjj already suppresses gluon jets for VBF/​VBS). ​Examples:  
-    * PDFs +      * PDFs 
-    * VBF  +      * VBF  
-    * X->gg +      * X->gg 
-    * Susy cascades +      * Susy cascades 
-    * ISR tagging +      * ISR tagging 
-    * W tagging +      * W tagging 
-    * top tagging ​+      * top tagging ​
  
-  ​* **Extraction of the strong coupling constant** ​ This was a main focus of the last Les Houches and we plan on at least having a discussion about this one of the days.  As part of this, we may want to do a short study of the difference between inclusive jets (F. Ringer et al.) and dijets.+    ​* **Extraction of the strong coupling constant** ​ This was a main focus of the last Les Houches and we plan on at least having a discussion about this one of the days.  As part of this, we may want to do a short study of the difference between inclusive jets (F. Ringer et al.) and dijets.
  
-  ​* **Tuning with jet substructure** One motivation for performing measurements of jet structure is to improve MC tunes. ​ It would be good to understand which observables are actually sensitive to which parameters, taking note of what has already been measured. ​ IRC safe observables may not be so useful for tuning. ​ Another sub-topic: can we understand the ATLAS jet pull angle measurement from the point of view of parameter variations? ​ (quite significant tension between Pythia and data).+    ​* **Tuning with jet substructure** One motivation for performing measurements of jet structure is to improve MC tunes. ​ It would be good to understand which observables are actually sensitive to which parameters, taking note of what has already been measured. ​ IRC safe observables may not be so useful for tuning. ​ Another sub-topic: can we understand the ATLAS jet pull angle measurement from the point of view of parameter variations? ​ (quite significant tension between Pythia and data).
  
-  ​* **Can grooming reduce non-perturbative effects?** Idea in part suggested by Bogdan Malaescu (see also 1705.07135).+    ​* **Can grooming reduce non-perturbative effects?** Idea in part suggested by Bogdan Malaescu (see also 1705.07135).
  
-  ​* **Tagging** There was a big effort to understand light 2-prong tagging last Les Houches. ​ We could revisit this topic for Higgs and/or BSM (top is already quite well-covered with 1902.09914).+    ​* **Tagging** There was a big effort to understand light 2-prong tagging last Les Houches. ​ We could revisit this topic for Higgs and/or BSM (top is already quite well-covered with 1902.09914).
  
-  ​* **Various ML4Jets topics**+    ​* **Various ML4Jets topics**
2019/groups/sm/start.txt · Last modified: 2019/06/19 10:23 by daniel.maitre