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2019:topics [2018/11/09 11:36]
bill.murray
2019:topics [2018/12/10 11:23]
fawzi.boudjema
Line 1: Line 1:
-====== ​ Topics for Consideration ======+======  ​LH 2019: Topics for Consideration ======
 //(Editing this page requires special privileges: Conveners, organisers)//​ //(Editing this page requires special privileges: Conveners, organisers)//​
  
-**To come**+**session 1**
  
   * **Loops,​Multilegs,​Jets **   * **Loops,​Multilegs,​Jets **
 +
 +  *  **PDFs:**
 +    *dealing with scale uncertainties in PDF fits
 +    *benchmark studies for current generation of PDFs, e.g. top distributions
 +    *dealing with tensions in LHC data, i.e. ATLAS jets vs CMS jets, top distributions
 +       *does each group have the same reaction to the tensions? ​
 +       *how to get the greatest knowledge from distributions with tensions? ​
 +    *dealing with NNLO grids (NNLOJET)
 +
 +  * **Parton Showers:**
 +    *LH17 showed that PS predictions agree well with each other when input parameters are synchronized;​ reasonable physics choices then lead to differences;​ can we establish the limit of what these reasonable physics choices are?
 +
 +  * **ME+PS:**
 +    *better understanding of limits of precision for ME/ME+PS calculations
 +    *uncertainties in matching PS with ME
 +    *better understanding of '​reasonable'​ scale uncertainties at NNLO
 +    *precision predictions in the high pT frontier
 +
 +  * **Progress with higher order calculations:​**
 +    *any benchmarking,​ for example DY at NNLO?
 +    *improvements for evaluation of 2->2 at NNLO
 +    *loopedia
 +    *outlook for 2->3 NNLO
 +    *3-loop, e.g. Higgs rapidity
 +    *compact expressions at the amplitude level
 +    *ntuples for NNLO
 +
 +  * **Jets: Where is quark/gluon discrimination useful? How does it perform? Examples: **
 +    * PDFs
 +    * VBF 
 +    * X->gg
 +    * Susy cascades
 +    * ISR tagging
 +    * W tagging
 +    * top tagging ​
     ​     ​
   * **Higgs**   * **Higgs**
-    *SM Issues +    * SM Issues 
-    *New Physics ​and Higgs +        Parton shower ​and underlying event related systematics in Higgs measurements for signal and background (together with Loops,​Multilegs,​Jets) 
-      Higgs pairs: lambda_HHH from single & double; ​ +        Prospect of quark/gluon jet tagging for VBF (synergy with Jets session) 
-      VBF Higgs pairsC2vCv relation ​ +        Predictions+uncertainty models for backgrounds to ttH productiontt+HFggH+HF, tt+V 
-      Rare decays: benchmark ​for H->aa->gamgamgamgam+        Background function choice ​for H->gamgam and H->mumu: how to evaluate the functional choice systematics 
 +        * STXS: 
 +            * Brainstorming on "STXS for Higgs decays"​ or something similar for decay propery measurements 
 +            * Updates on STXS for production 
 +        * Probing Higgs Width and Top Quark Yukawa Coupling from ttH and tttt 
 +        * Higgs pair production and self-coupling observables,​ top quark mass-scheme uncertainties 
 +        * EFT description of Higgs production
  
 +  * **MC and Tools**
 +    * ttbar: mismodeling of top pt and an angular distributions
 +    * W-mass and precise EW measurements:​ where are the bottlenecks?​
 +    * ...more to come...
 +
 +**session 2**
 +
 +  * **Higgs: new physics**
 +    * Higgs pairs: lambda_HHH from single & double; ​
 +    * VBF Higgs pairs: C2v, Cv relation ​
 +    * Rare decays: benchmark for H->​aa->​gamgamgamgam
 +    * Rare and exotic Higgs decays: further channels not searched for? motivation in specific BSM scenarios?
 +    * CP violation and Higgs: (HL-)LHC sensitivity,​ complementarity with other probes (e.g. EDMs)
 +    * Lighter than 125 GeV scalars: how well are they covered by LHC and LEP?  ​
 +    * Interpretation of SM coupling/​STXS constraints in BSM benchmarks
 +    * MSSM: how to close the gap in the high mA (>= 500 GeV), intermediate tan(beta) range?
 +    * Precision measurements to sharpen interpretation of Higgs results (W mass, TGCs, W/Z coupling to quarks, CKM ...)
 +    * New physics at the high-energy tail of Higgs distributions
 +
 +  * **Precision physics at the LHC**
 +    * Precision measurements of Z and W couplings to quarks
 +    * Lepton flavor violation in W decays ​  
 +    * Measurement of CKM elements
 +    * High-energy tail of Drell-Yan production
  
   * **New Physics**   * **New Physics**
 +    * VLQs beyond V/Hq decays
 +    * Unconventional signatures
 +    * Complex DM and colliders
 +
 +  * **Flavour anomalies**
 +    * High pT searches connected with the flavour anomalies
 +    * Optimized leptoquark and Z' searches ​
 +    * Tail of the di-leptons distributions ​
 +    * ...
 +
 +  * **BSM and Machine Learning**
 +    * Determination of model parameters
 +    * 2d/3d/4d Image analysis for HEP e.g. jets
 +    * New Searches with ML (search algorithms, generic searches, automatisation,​ density estimation, deep networks / auto-encoders etc.)
 +    * Learning Phenomenally predictions (limits, likelihoods,​ cross sections)
 +    * Generative models for HEP
 +
  
   * **Tools&​MC**   * **Tools&​MC**
-    *SM Implementations +    * Global fits / recasting / scanning spaces  
-    *BSM Approaches+    * Analysis preservation  
 +    * LLP and resonance searches  
 +    * Simplified likelihoods and EFT explorations  
 +    * Beyond EFT: unitarity, exploring the continuum between EFT→full models ​ 
 +    * BSM modelling with MC  
 +    * Future colliders ​
2019/topics.txt · Last modified: 2019/04/22 15:55 by joey.huston