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2015:groups:sm:qg [2015/06/04 17:29] andrzej.siodmok |
2015:groups:sm:qg [2015/06/06 16:13] deepak.kar [Quark/Gluon Enrichment Studies] |
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* Marat Freytsis | * Marat Freytsis | ||
* Peter Loch <loch@physics.arizona.edu> | * Peter Loch <loch@physics.arizona.edu> | ||
- | * Deepak Kar | + | * Deepak Kar <deepak.kar@cern.ch> |
+ | * Simon Plätzer | ||
* Andrzej Siodmok <andrzej@cern.ch> | * Andrzej Siodmok <andrzej@cern.ch> | ||
* Peter Skands <peter.skands@monash.edu> | * Peter Skands <peter.skands@monash.edu> | ||
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</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.) |