2015:groups:sm:qg
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2015:groups:sm:qg [2015/06/04 17:18] jesse.thaler |
2015:groups:sm:qg [2015/07/14 08:27] philippe.gras Added instructions for CERN account |
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| a.k.a. Hunting the White Whale of Jet Substructure | a.k.a. Hunting the White Whale of Jet Substructure | ||
| - | * Andy Buckley | + | //If you are interested in contributing please subscribe to the [[https://e-groups.cern.ch/e-groups/EgroupsSearch.do?searchValue=houches-2015-topics-sm-qg-separation|mailing list]]. You will be asked to log in with your CERN account. If you don't have a CERN account, please fill [[https://account.cern.ch/account/Externals/RegisterAccount.aspx|this form]] to create a lightweight account.// |
| - | * Jon Butterworth | + | |
| - | * Mario Campanelli | + | * Andy Buckley <andy.buckley@cern.ch> |
| - | * Marat Freytsis | + | * Jon Butterworth <J.Butterworth@ucl.ac.uk> |
| + | * Mario Campanelli <mario.campanelli@cern.ch> | ||
| + | * Marat Freytsis <freytsis@physics.harvard.edu> | ||
| * Peter Loch <loch@physics.arizona.edu> | * Peter Loch <loch@physics.arizona.edu> | ||
| - | * Deepak Kar | + | * Philippe Gras <philippe.gras@cern.ch> |
| - | * Andrzej Siodmok | + | * Sam Bein <samuel.bein@gmail.com> |
| + | * Deepak Kar <deepak.kar@cern.ch> | ||
| + | * Simon Plätzer <simon.plaetzer@desy.de> | ||
| + | * Andrzej Siodmok <andrzej@cern.ch> | ||
| * Peter Skands <peter.skands@monash.edu> | * Peter Skands <peter.skands@monash.edu> | ||
| - | * Dave Soper | + | * Dave Soper <soper@uoregon.edu> |
| - | * Gregory Soyez | + | * Gregory Soyez <Gregory.Soyez@cern.ch> |
| - | * Frank Tackmann | + | * Frank Tackmann <frank.tackmann@desy.de> |
| * Jesse Thaler <jthaler@mit.edu> | * Jesse Thaler <jthaler@mit.edu> | ||
| * ... | * ... | ||
| Link to GitHub repository: https://github.com/gsoyez/lh2015-qg | Link to GitHub repository: https://github.com/gsoyez/lh2015-qg | ||
| + | ===== Slides from Saturday ===== | ||
| + | |||
| + | * {{:2015:groups:sm:qcdaware.pdf|Andy's upcoming paper on QCDAware jet algorithms}} | ||
| + | |||
| + | * {{|Peter's VBF Slides}} | ||
| + | |||
| + | * {{:2015:groups:sm:jetmass_ft.pdf|Frank's Hadronization Power Correction Slides}} | ||
| + | |||
| + | * {{:2015:groups:sm:jthaler_lh_saturday.pdf|Summary of MC Studies}} | ||
| + | |||
| + | * Quark as an noun vs. quark as an adjective (pseudo-quarks? uarks? quarky jets?) | ||
| + | |||
| + | ===== Plan of attack for Wednesday Les Houches Presentation ===== | ||
| + | |||
| + | * Write our quark/gluon manifesto/history. | ||
| + | * Catalog quark gluon discriminants and performance measures | ||
| + | * e+e- -> u uubar , gg | ||
| + | * Baseline: Q = 200 GeV, R = 0.6, all Monte Carlo programs optimal | ||
| + | * Quark distribution, gluon distribution, separation, integrated separation | ||
| + | * Pythia variations: noME, nogqq | ||
| + | * Herwig variations: ... | ||
| + | * Sherpa variations: ... | ||
| + | * Vincia variations: noME | ||
| + | * Q = 50, 100, 200, 400, 800 GeV (everything else baseline) | ||
| + | * R = 0.2, 0.4, 0.6, 0.8, 1.0 (everything else baseline) | ||
| + | * delta alphas / alphas = -0.2, -0.1, 0.0, +0.1, +0.2 (everything else baseline) | ||
| + | |||
| ===== Preliminaries ===== | ===== Preliminaries ===== | ||
| Line 409: | Line 441: | ||
| </code> | </code> | ||
| + | |||
| + | ===== Notes for Jesse for Preparing Summary Talk ===== | ||
| + | |||
| + | * Quark is more of an adjective than a noun. | ||
| + | * Pseudo-quark? (That language doesn't go over very well.) | ||
| + | |||
| + | ==== What is a Quark Jet? ==== | ||
| + | |||
| + | (From ill-defined to well-defined) | ||
| + | |||
| + | * A quark parton | ||
| + | * A Born-level quark parton | ||
| + | * The initiating quark parton in a final state shower | ||
| + | * An eikonal line with baryon number 1/3 and carrying triplet color charge | ||
| + | * A quark operator that appears in a hard matrix element in the context of a factorization theorem. | ||
| + | * A parton-level jet object that has been tagged as a quark using a soft-safe flavored jet algorithm (automatically collinear safe if you sum constituent flavors). | ||
| + | * A phase space region (as defined by an unambiguous hadronic fiducial cross section measurement) that yields an enriched sample of quarks (as interpreted by some suitable, though fundamentally ambiguous, criterion). | ||
| + | | ||
| + | (Sometimes people think we care about the top of the list while we are really focused entirely on the bottom.) | ||
2015/groups/sm/qg.txt · Last modified: 2015/07/14 08:27 by philippe.gras
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