2013:groups:tools:eventformats
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2013:groups:tools:eventformats [2013/06/19 07:46] eric.conte [Some ideas to discuss] |
2013:groups:tools:eventformats [2013/06/19 12:04] eric.conte [Some ideas to discuss] |
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| ===== Motivations ===== | ===== Motivations ===== | ||
| - | * defining a format sample for jet-clustering output (without fast-simulation detector). | + | * defining a format for jet-clustering output (without fast-simulation detector). |
| - | * LHCO contains too few information for performing sophisticated analysis. Need to add more variables. | + | * defining a format which extends the LHCO content (too few information for performing sophisticated analysis). |
| - | * LHCO does not take into account all Delphes3 potential. | + | * the new format will take into account all Delphes 3 potential. |
| ===== Some ideas to discuss ===== | ===== Some ideas to discuss ===== | ||
| - | * Using text format (theorist-friendly format :-D). ROOT is rejected. | + | * Using text format (theorist-friendly format :-D). ROOT is rejected ; STDHEP seems to be obsolete. |
| - | * Keeping the structure of the existing LHE Format and its XML tags. Name of the format extension: eLHE (e for 'extended') ? | + | * Prefering extending an existing format to defining a totally new one (avoiding developers from coding writer and reader functions from scratch). Our choice is to extend the LHE Format (arXiv:hep-ph/0609017) and its structure based on XML tags. Reminder about the LHE structure: |
| - | * Possibility to store hard-process states and reco objects in a same file. | + | <LesHouchesEvents version="X"> |
| + | <header> | ||
| + | ... | ||
| + | </header> | ||
| + | <init> | ||
| + | 2212 2212 0.40000000000E+04 0.40000000000E+04 0 0 10042 10042 3 1 | ||
| + | 0.47468358499E+01 0.15068796356E-01 0.47469000000E-03 0 | ||
| + | ... | ||
| + | </init> | ||
| + | <event> | ||
| + | 12 0 0.4746900E-03 0.2312331E+03 0.7957747E-01 0.1132798E+00 | ||
| + | 21 -1 0 0 501 502 0.00000000000E+00 0.00000000000E+00 0.74064204368E+02 0.74064204368E+02 0.00000000000E+00 0. 1. | ||
| + | 21 -1 0 0 502 503 0.00000000000E+00 0.00000000000E+00 -0.74552086368E+03 0.74552086368E+03 0.00000000000E+00 0. 1. | ||
| + | -6 2 1 2 0 503 0.14952840473E+03 -0.23999735524E+02 -0.41424800778E+03 0.47441561784E+03 0.17473990778E+03 0. 0. | ||
| + | -24 2 3 3 0 0 0.56722398399E+02 -0.36860071438E+02 -0.33540004381E+03 0.35186997544E+03 0.82116958530E+02 0. 0. | ||
| + | 6 2 1 2 501 0 -0.14952840473E+03 0.23999735524E+02 -0.25720865153E+03 0.34516945021E+03 0.17335203433E+03 0. 0. | ||
| + | 24 2 5 5 0 0 -0.16699616992E+03 0.38357854935E+02 -0.25987491067E+03 0.32192128147E+03 0.82093218139E+02 0. 0. | ||
| + | -13 1 6 6 0 0 -0.76026472087E+02 0.53922169130E+02 -0.95737952146E+02 0.13361654188E+03 0.00000000000E+00 0. 1. | ||
| + | 14 1 6 6 0 0 -0.90969697833E+02 -0.15564314195E+02 -0.16413695853E+03 0.18830473960E+03 0.00000000000E+00 0. -1. | ||
| + | 5 1 5 5 501 0 0.17467765185E+02 -0.14358119410E+02 0.26662591415E+01 0.23248168736E+02 0.46999998093E+01 0. -1. | ||
| + | 11 1 4 4 0 0 0.50813684997E+02 -0.61274565657E+02 -0.22556131392E+03 0.23919554619E+03 0.00000000000E+00 0. -1. | ||
| + | -12 1 4 4 0 0 0.59087134026E+01 0.24414494219E+02 -0.10983872989E+03 0.11267442925E+03 0.00000000000E+00 0. 1. | ||
| + | -5 1 3 3 0 503 0.92806006335E+02 0.12860335914E+02 -0.78847963972E+02 0.12254564240E+03 0.46999998093E+01 0. 1. | ||
| + | </event> | ||
| + | <event> | ||
| + | ... | ||
| + | </LesHouchesEvents> | ||
| - | * The generation step (hard-process, shower, reco) will be specified by the status code. | + | * Possibility to store hard-process states, hadrons and reco objects in a same file. |
| - | * Optional substructure: defining a XML for each collection of objects. Several collections of a same objects (jets in the example) can be defined and used. | + | * The generation step (hard-process, shower, reco) will be specified by the status-code. Question: how to manage the hundred possible status-code values in Pythia 8 ? Potentiel solution: adding an ID-code to vertices (see Les Houches session 1). |
| + | |||
| + | * Optional substructure in <event> block: defining a XML tag for each collection of objects. Several collections of a same object kind (jets in the example) can be defined and used. | ||
| <hardprocess> | <hardprocess> | ||
| + | ... | ||
| </hardprocess> | </hardprocess> | ||
| <jets> | <jets> | ||
| + | ... | ||
| </jets> | </jets> | ||
| <jets name="substructure John Hopkins algo"> | <jets name="substructure John Hopkins algo"> | ||
| + | ... | ||
| </jets> | </jets> | ||
| <electrons> | <electrons> | ||
| + | ... | ||
| </electrons> | </electrons> | ||
| <muons> | <muons> | ||
| + | ... | ||
| </muons> | </muons> | ||
| ... | ... | ||
| - | | ||
| + | * List of relevant observables for each object collection must be defined. | ||
| + | |||
| + | * Name of the format extension: eLHE (e for 'extended') ? | ||
2013/groups/tools/eventformats.txt · Last modified: 2013/06/20 12:15 by eric.conte
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