source: HiSusy/trunk/Delphes/Delphes-3.0.9/doc/RootTreeDescription.html @ 5

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1<html>
2<head>
3  <meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
4  <meta NAME="keywords" CONTENT="root, tree, ntuple, format, description">
5  <title>root tree description</title>
6</head>
7<body>
8<H1>root tree description</H1>
9<hr>
10<H2>Classes</H2>
11<hr>
12<table style="border: 1px dotted;" align="center" border="0" cellpadding="7" cellspacing="3" widt="95%">
13<tr><td><b>Parameter</b></td>
14<td><b>Definition</b></td>
15<td><b>How it was calculated</b></td></tr>
16<tr bgcolor="#ffffff"><td colspan=3><hr><a name="Event"><H3>Event</H3><hr></td></tr>
17<tr bgcolor="#eeeeee">
18  <td>Number</td>
19  <td>event number</td>
20  <td></td>
21</tr>
22<tr bgcolor="#ffffff"><td colspan=3><hr><a name="LHCOEvent"><H3>LHCOEvent</H3><hr></td></tr>
23<tr bgcolor="#ffffff">
24  <td><a href="#Event">Event</a></td>
25  <td>LHCOEvent inherits all Event parameters</td>
26  <td></td>
27</tr>
28<tr bgcolor="#eeeeee">
29  <td>Trigger</td>
30  <td>trigger word</td>
31  <td></td>
32</tr>
33<tr bgcolor="#ffffff"><td colspan=3><hr><a name="LHEFEvent"><H3>LHEFEvent</H3><hr></td></tr>
34<tr bgcolor="#ffffff">
35  <td><a href="#Event">Event</a></td>
36  <td>LHEFEvent inherits all Event parameters</td>
37  <td></td>
38</tr>
39<tr bgcolor="#eeeeee">
40  <td>ProcessID</td>
41  <td>subprocess code for the event </td>
42  <td> hepup.IDPRUP</td>
43</tr>
44<tr bgcolor="#ffffff">
45  <td>Weight</td>
46  <td>weight for the event </td>
47  <td> hepup.XWGTUP</td>
48</tr>
49<tr bgcolor="#eeeeee">
50  <td>ScalePDF</td>
51  <td>scale in GeV used in the calculation of the PDFs in the event </td>
52  <td> hepup.SCALUP</td>
53</tr>
54<tr bgcolor="#ffffff">
55  <td>AlphaQED</td>
56  <td>value of the QED coupling used in the event </td>
57  <td> hepup.AQEDUP</td>
58</tr>
59<tr bgcolor="#eeeeee">
60  <td>AlphaQCD</td>
61  <td>value of the QCD coupling used in the event </td>
62  <td> hepup.AQCDUP</td>
63</tr>
64<tr bgcolor="#ffffff"><td colspan=3><hr><a name="HepMCEvent"><H3>HepMCEvent</H3><hr></td></tr>
65<tr bgcolor="#ffffff">
66  <td><a href="#Event">Event</a></td>
67  <td>HepMCEvent inherits all Event parameters</td>
68  <td></td>
69</tr>
70<tr bgcolor="#eeeeee">
71  <td>ProcessID</td>
72  <td>unique signal process id </td>
73  <td> signal_process_id()</td>
74</tr>
75<tr bgcolor="#ffffff">
76  <td>MPI</td>
77  <td>number of multi parton interactions </td>
78  <td> mpi () </td>
79</tr>
80<tr bgcolor="#eeeeee">
81  <td>Weight</td>
82  <td>weight for the event</td>
83  <td></td>
84</tr>
85<tr bgcolor="#ffffff">
86  <td>Scale</td>
87  <td>energy scale, see hep-ph/0109068 </td>
88  <td> event_scale()</td>
89</tr>
90<tr bgcolor="#eeeeee">
91  <td>AlphaQED</td>
92  <td>QED coupling, see hep-ph/0109068 </td>
93  <td> alphaQED()</td>
94</tr>
95<tr bgcolor="#ffffff">
96  <td>AlphaQCD</td>
97  <td>QCD coupling, see hep-ph/0109068 </td>
98  <td> alphaQCD()</td>
99</tr>
100<tr bgcolor="#eeeeee">
101  <td>ID1</td>
102  <td>flavour code of first parton </td>
103  <td> pdf_info()->id1()</td>
104</tr>
105<tr bgcolor="#ffffff">
106  <td>ID2</td>
107  <td>flavour code of second parton </td>
108  <td> pdf_info()->id2()     </td>
109</tr>
110<tr bgcolor="#eeeeee">
111  <td>X1</td>
112  <td>fraction of beam momentum carried by first parton ("beam side") </td>
113  <td> pdf_info()->x1()</td>
114</tr>
115<tr bgcolor="#ffffff">
116  <td>X2</td>
117  <td>fraction of beam momentum carried by second parton ("target side") </td>
118  <td> pdf_info()->x2()</td>
119</tr>
120<tr bgcolor="#eeeeee">
121  <td>ScalePDF</td>
122  <td>Q-scale used in evaluation of PDF's (in GeV) </td>
123  <td> pdf_info()->scalePDF()</td>
124</tr>
125<tr bgcolor="#ffffff">
126  <td>PDF1</td>
127  <td>PDF (id1, x1, Q) </td>
128  <td> pdf_info()->pdf1()</td>
129</tr>
130<tr bgcolor="#eeeeee">
131  <td>PDF2</td>
132  <td>PDF (id2, x2, Q) </td>
133  <td> pdf_info()->pdf2()</td>
134</tr>
135<tr bgcolor="#ffffff"><td colspan=3><hr><a name="GenParticle"><H3>GenParticle</H3><hr></td></tr>
136<tr bgcolor="#eeeeee">
137  <td>PID</td>
138  <td>particle HEP ID number </td>
139  <td> hepevt.idhep[number]</td>
140</tr>
141<tr bgcolor="#ffffff">
142  <td>Status</td>
143  <td>particle status </td>
144  <td> hepevt.isthep[number]</td>
145</tr>
146<tr bgcolor="#eeeeee">
147  <td>IsPU</td>
148  <td>0 or 1 for particles from pile-up interactions</td>
149  <td></td>
150</tr>
151<tr bgcolor="#ffffff">
152  <td>M1</td>
153  <td>particle 1st mother </td>
154  <td> hepevt.jmohep[number][0] - 1</td>
155</tr>
156<tr bgcolor="#eeeeee">
157  <td>M2</td>
158  <td>particle 2nd mother </td>
159  <td> hepevt.jmohep[number][1] - 1</td>
160</tr>
161<tr bgcolor="#ffffff">
162  <td>D1</td>
163  <td>particle 1st daughter </td>
164  <td> hepevt.jdahep[number][0] - 1</td>
165</tr>
166<tr bgcolor="#eeeeee">
167  <td>D2</td>
168  <td>particle last daughter </td>
169  <td> hepevt.jdahep[number][1] - 1</td>
170</tr>
171<tr bgcolor="#ffffff">
172  <td>Charge</td>
173  <td>particle charge</td>
174  <td></td>
175</tr>
176<tr bgcolor="#eeeeee">
177  <td>Mass</td>
178  <td>particle mass</td>
179  <td></td>
180</tr>
181<tr bgcolor="#ffffff">
182  <td>E</td>
183  <td>particle energy </td>
184  <td> hepevt.phep[number][3]</td>
185</tr>
186<tr bgcolor="#eeeeee">
187  <td>Px</td>
188  <td>particle momentum vector (x component) </td>
189  <td> hepevt.phep[number][0]</td>
190</tr>
191<tr bgcolor="#ffffff">
192  <td>Py</td>
193  <td>particle momentum vector (y component) </td>
194  <td> hepevt.phep[number][1]</td>
195</tr>
196<tr bgcolor="#eeeeee">
197  <td>Pz</td>
198  <td>particle momentum vector (z component) </td>
199  <td> hepevt.phep[number][2]</td>
200</tr>
201<tr bgcolor="#ffffff">
202  <td>PT</td>
203  <td>particle transverse momentum</td>
204  <td></td>
205</tr>
206<tr bgcolor="#eeeeee">
207  <td>Eta</td>
208  <td>particle pseudorapidity</td>
209  <td></td>
210</tr>
211<tr bgcolor="#ffffff">
212  <td>Phi</td>
213  <td>particle azimuthal angle</td>
214  <td></td>
215</tr>
216<tr bgcolor="#eeeeee">
217  <td>Rapidity</td>
218  <td>particle rapidity</td>
219  <td></td>
220</tr>
221<tr bgcolor="#ffffff">
222  <td>T</td>
223  <td>particle vertex position (t component) </td>
224  <td> hepevt.vhep[number][3]</td>
225</tr>
226<tr bgcolor="#eeeeee">
227  <td>X</td>
228  <td>particle vertex position (x component) </td>
229  <td> hepevt.vhep[number][0]</td>
230</tr>
231<tr bgcolor="#ffffff">
232  <td>Y</td>
233  <td>particle vertex position (y component) </td>
234  <td> hepevt.vhep[number][1]</td>
235</tr>
236<tr bgcolor="#eeeeee">
237  <td>Z</td>
238  <td>particle vertex position (z component) </td>
239  <td> hepevt.vhep[number][2]</td>
240</tr>
241<tr bgcolor="#ffffff"><td colspan=3><hr><a name="MissingET"><H3>MissingET</H3><hr></td></tr>
242<tr bgcolor="#eeeeee">
243  <td>MET</td>
244  <td>mising transverse energy</td>
245  <td></td>
246</tr>
247<tr bgcolor="#ffffff">
248  <td>Phi</td>
249  <td>mising energy azimuthal angle</td>
250  <td></td>
251</tr>
252<tr bgcolor="#ffffff"><td colspan=3><hr><a name="ScalarHT"><H3>ScalarHT</H3><hr></td></tr>
253<tr bgcolor="#eeeeee">
254  <td>HT</td>
255  <td>scalar sum of transverse momenta</td>
256  <td></td>
257</tr>
258<tr bgcolor="#ffffff"><td colspan=3><hr><a name="Rho"><H3>Rho</H3><hr></td></tr>
259<tr bgcolor="#eeeeee">
260  <td>Rho</td>
261  <td>rho energy density</td>
262  <td></td>
263</tr>
264<tr bgcolor="#ffffff"><td colspan=3><hr><a name="Photon"><H3>Photon</H3><hr></td></tr>
265<tr bgcolor="#eeeeee">
266  <td>PT</td>
267  <td>photon transverse momentum</td>
268  <td></td>
269</tr>
270<tr bgcolor="#ffffff">
271  <td>Eta</td>
272  <td>photon pseudorapidity</td>
273  <td></td>
274</tr>
275<tr bgcolor="#eeeeee">
276  <td>Phi</td>
277  <td>photon azimuthal angle</td>
278  <td></td>
279</tr>
280<tr bgcolor="#ffffff">
281  <td>E</td>
282  <td>photon energy</td>
283  <td></td>
284</tr>
285<tr bgcolor="#eeeeee">
286  <td>EhadOverEem</td>
287  <td>ratio of the hadronic versus electromagnetic energy deposited in the calorimeter</td>
288  <td></td>
289</tr>
290<tr bgcolor="#ffffff">
291  <td>Particles</td>
292  <td>references to generated particles</td>
293  <td></td>
294</tr>
295<tr bgcolor="#ffffff"><td colspan=3><hr><a name="Electron"><H3>Electron</H3><hr></td></tr>
296<tr bgcolor="#eeeeee">
297  <td>PT</td>
298  <td>electron transverse momentum</td>
299  <td></td>
300</tr>
301<tr bgcolor="#ffffff">
302  <td>Eta</td>
303  <td>electron pseudorapidity</td>
304  <td></td>
305</tr>
306<tr bgcolor="#eeeeee">
307  <td>Phi</td>
308  <td>electron azimuthal angle</td>
309  <td></td>
310</tr>
311<tr bgcolor="#ffffff">
312  <td>Charge</td>
313  <td>electron charge</td>
314  <td></td>
315</tr>
316<tr bgcolor="#eeeeee">
317  <td>EhadOverEem</td>
318  <td>ratio of the hadronic versus electromagnetic energy deposited in the calorimeter</td>
319  <td></td>
320</tr>
321<tr bgcolor="#ffffff">
322  <td>Particle</td>
323  <td>reference to generated particle</td>
324  <td></td>
325</tr>
326<tr bgcolor="#ffffff"><td colspan=3><hr><a name="Muon"><H3>Muon</H3><hr></td></tr>
327<tr bgcolor="#eeeeee">
328  <td>PT</td>
329  <td>muon transverse momentum</td>
330  <td></td>
331</tr>
332<tr bgcolor="#ffffff">
333  <td>Eta</td>
334  <td>muon pseudorapidity</td>
335  <td></td>
336</tr>
337<tr bgcolor="#eeeeee">
338  <td>Phi</td>
339  <td>muon azimuthal angle</td>
340  <td></td>
341</tr>
342<tr bgcolor="#ffffff">
343  <td>Charge</td>
344  <td>muon charge</td>
345  <td></td>
346</tr>
347<tr bgcolor="#eeeeee">
348  <td>Particle</td>
349  <td>reference to generated particle</td>
350  <td></td>
351</tr>
352<tr bgcolor="#ffffff"><td colspan=3><hr><a name="Jet"><H3>Jet</H3><hr></td></tr>
353<tr bgcolor="#eeeeee">
354  <td>PT</td>
355  <td>jet transverse momentum</td>
356  <td></td>
357</tr>
358<tr bgcolor="#ffffff">
359  <td>Eta</td>
360  <td>jet pseudorapidity</td>
361  <td></td>
362</tr>
363<tr bgcolor="#eeeeee">
364  <td>Phi</td>
365  <td>jet azimuthal angle</td>
366  <td></td>
367</tr>
368<tr bgcolor="#ffffff">
369  <td>Mass</td>
370  <td>jet invariant mass</td>
371  <td></td>
372</tr>
373<tr bgcolor="#eeeeee">
374  <td>BTag</td>
375  <td>0 or 1 for a jet that has been tagged as containing a heavy quark</td>
376  <td></td>
377</tr>
378<tr bgcolor="#ffffff">
379  <td>TauTag</td>
380  <td>0 or 1 for a jet that has been tagged as a tau</td>
381  <td></td>
382</tr>
383<tr bgcolor="#eeeeee">
384  <td>Charge</td>
385  <td>tau charge</td>
386  <td></td>
387</tr>
388<tr bgcolor="#ffffff">
389  <td>EhadOverEem</td>
390  <td>ratio of the hadronic versus electromagnetic energy deposited in the calorimeter</td>
391  <td></td>
392</tr>
393<tr bgcolor="#eeeeee">
394  <td>Constituents</td>
395  <td>references to constituents</td>
396  <td></td>
397</tr>
398<tr bgcolor="#ffffff">
399  <td>Particles</td>
400  <td>references to generated particles</td>
401  <td></td>
402</tr>
403<tr bgcolor="#ffffff"><td colspan=3><hr><a name="Track"><H3>Track</H3><hr></td></tr>
404<tr bgcolor="#eeeeee">
405  <td>PID</td>
406  <td>HEP ID number</td>
407  <td></td>
408</tr>
409<tr bgcolor="#ffffff">
410  <td>Charge</td>
411  <td>track charge</td>
412  <td></td>
413</tr>
414<tr bgcolor="#eeeeee">
415  <td>PT</td>
416  <td>track transverse momentum</td>
417  <td></td>
418</tr>
419<tr bgcolor="#ffffff">
420  <td>Eta</td>
421  <td>track pseudorapidity</td>
422  <td></td>
423</tr>
424<tr bgcolor="#eeeeee">
425  <td>Phi</td>
426  <td>track azimuthal angle</td>
427  <td></td>
428</tr>
429<tr bgcolor="#ffffff">
430  <td>EtaOuter</td>
431  <td>track pseudorapidity at the tracker edge</td>
432  <td></td>
433</tr>
434<tr bgcolor="#eeeeee">
435  <td>PhiOuter</td>
436  <td>track azimuthal angle at the tracker edge</td>
437  <td></td>
438</tr>
439<tr bgcolor="#ffffff">
440  <td>X</td>
441  <td>track vertex position (x component)</td>
442  <td></td>
443</tr>
444<tr bgcolor="#eeeeee">
445  <td>Y</td>
446  <td>track vertex position (y component)</td>
447  <td></td>
448</tr>
449<tr bgcolor="#ffffff">
450  <td>Z</td>
451  <td>track vertex position (z component)</td>
452  <td></td>
453</tr>
454<tr bgcolor="#eeeeee">
455  <td>XOuter</td>
456  <td>track position (x component) at the tracker edge</td>
457  <td></td>
458</tr>
459<tr bgcolor="#ffffff">
460  <td>YOuter</td>
461  <td>track position (y component) at the tracker edge</td>
462  <td></td>
463</tr>
464<tr bgcolor="#eeeeee">
465  <td>ZOuter</td>
466  <td>track position (z component) at the tracker edge</td>
467  <td></td>
468</tr>
469<tr bgcolor="#ffffff">
470  <td>Particle</td>
471  <td>reference to generated particle</td>
472  <td></td>
473</tr>
474<tr bgcolor="#ffffff"><td colspan=3><hr><a name="Tower"><H3>Tower</H3><hr></td></tr>
475<tr bgcolor="#eeeeee">
476  <td>ET</td>
477  <td>calorimeter tower transverse energy</td>
478  <td></td>
479</tr>
480<tr bgcolor="#ffffff">
481  <td>Eta</td>
482  <td>calorimeter tower pseudorapidity</td>
483  <td></td>
484</tr>
485<tr bgcolor="#eeeeee">
486  <td>Phi</td>
487  <td>calorimeter tower azimuthal angle</td>
488  <td></td>
489</tr>
490<tr bgcolor="#ffffff">
491  <td>E</td>
492  <td>calorimeter tower energy</td>
493  <td></td>
494</tr>
495<tr bgcolor="#eeeeee">
496  <td>Eem</td>
497  <td>calorimeter tower electromagnetic energy</td>
498  <td></td>
499</tr>
500<tr bgcolor="#ffffff">
501  <td>Ehad</td>
502  <td>calorimeter tower hadronic energy</td>
503  <td></td>
504</tr>
505<tr bgcolor="#eeeeee">
506  <td>Edges[4]</td>
507  <td>calorimeter tower edges</td>
508  <td></td>
509</tr>
510<tr bgcolor="#ffffff">
511  <td>Particles</td>
512  <td>references to generated particles</td>
513  <td></td>
514</tr>
515</table>
516</body></html>
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