MINOS Event Files

Where to find the files

At Fermilab the files have been placed in the directories: 
  /afs/fnal.gov/files/data/minos/d1/gminos/minos_events_rRRRRR.fz_gaf
  /afs/fnal.gov/files/data/minos/d2/gminos/minos_events_rRRRRR.fz_gaf
The d1 directory holds the files for 4cm Fe (RRRRR=1xxxx), while the d2 directory holds the 2cm Fe runs.

Background

At the Lutsen meeting a number of the working groups requested that a set of standardized files be generated to provide a base from which to study our options. This collection of gminos runs is an intial offering to meet that need.

Variations

There are many parameters to vary and combinatorics quickly get complex.

All events are generated in a "far" detector configuration. The MFLX=0 (histogram) flux method is used. There is a center coil that contributes to dead regions in the tracking, but the mass is not accounted for in the generation of neutrino interactions. In every case there are three supermodules (with 1m separation). A supermodule contains either 200 (4cm Fe) or 400 (2cm Fe) detector planes.

Iron "B"
  1. 4cm plates (8m octogon, old field)
  2. 2cm plates (8m octogon, old field)
  3. 6cm plates (8m octogon, old field)
  4. 8cm plates (8m octogon, old field)
Detector "D"
  1. LST 1cm x 1cm profile with aluminum comb and
    9.0% Ar, 70.0% CO2, 21.0% isobutane gas
    (currently no digitization - only hits available)
  2. FLS 2cm x 2cm cells
  3. FLS 1cm x 2cm cells (smaller transverse segmentation)
  4. FLS 4cm x 2cm cells (larger transverse segmentation)
Flavor "F"
  1. no oscillation
  2. (nu_e --> nu_mu) (nu_mu --> nu_tau) (nu_tau --> nu_e)
  3. (nu_e --> nu_tau) (nu_mu --> nu_e) (nu_tau --> nu_mu)
  4. single electrons
  5. single pi+ hadrons

The run number is constructed from the conditions: "BDFxx". The "xx" differentiates different runs of the similar conditions. The first pass through the neutrino runs used the default initial random numbers and generated 1000 events for each configuration. This data set occupies 1.15GB of disk space.

The second pass ("xx"=02) neutrino runs uses the previous run's ending random number seeds as input and is set to generate 4000 more events. For the FLS configurations the true hit information will be dropped after the digitization has been performed; this results in a extremely large reduction (~50x) in the size of the event data.

If people have a particular configuration that they'd like to see run before the others they should inform me (Robert Hatcher) and I'll push it up in the queue.

When processing the single particle files, the "xx" code is broken down further with the 10's place designating the energy and the 1's place for distinquishing similar runs. The default configuration was to generate 4000 events of each setup. The energies were:

  1. 2 GeV
  2. 5 GeV
  3. 7.5 GeV (skipped)
  4. 10 GeV
  5. 15 GeV (skipped)
  6. 20 GeV
  7. 25 GeV (skipped)

Run info

The output files are all FZ exchange format GAFs. They have the name minos_events_rrrrrr.fz_gaf, where rrrrr is the run number.

run conditions batch job info
run # evts particle det Fe input rndm output rndm file size (blk) job #
sec/evt		 clock time notes
11101 1000 (-1) nu_mu LST 1cm 4cm 0 0 505761209 108171419 28736 C-715 8.7868 96/08/01:02:14:14 96/08/01:07:09:40
11102 4000 nu_mu LST 1cm 4cm 505761209 108171419 997545807 1221459663 116528 C-760 8.5133 lost in the mail
11201 1000 (-7) nu_tau LST 1cm 4cm 0 0 1477554603 1738801942 18368 Z-1961 5.0382 96/08/01:10:22:52 96/08/01:13:20:57
11301 1000 (-0) nu_e LST 1cm 4cm 0 0 1821489844 125012494 28112 C-719 13.3921 96/08/01:10:22:11 96/08/01:18:35:23
11302 4000 nu_e LST 1cm 4cm 1821489844 125012494 273874057 1029890840 113600 C-762 13.3578 lost in the mail
12101 1000 (-1) nu_mu FLS 2cm 4cm 0 0 1873650841 1880142625 100560 C-680 10.1441 96/07/27:03:29:16 96/07/27:06:20:54
12102 4000 nu_mu FLS 2cm 4cm 1873650841 1880142625 798555227 458263697 71936 C-727 10.1044 96/08/01:22:18:46 96/08/02:19:57:42
12103 24000 nu_mu FLS 2cm 4cm 798555227 458263697 439611444 1022101063 430096 Z-2263 5.4921 96/09/16:18:32:54 96/09/19:20:42:47
12201 1000 (-13) nu_tau FLS 2cm 4cm 0 0 2145802253 1159415986 68960 C-700 10.2263 96/07/30:04:06:49 96/07/30:06:58:23
12301 1000 (-0) nu_e FLS 2cm 4cm 0 0 1747414696 1151210417 103440 Z-1845 8.4728 96/07/27:13:08:48 96/07/27:17:52:49
12302 3422 nu_e FLS 2cm 4cm 1747414696 1151210417 56440917
939817355		 37856 C-771 14.7695 ?
?
12303 6000 nu_e FLS 2cm 4cm 56440917
939817355		 424629397 607656888 66500 C-1175 15.0766 96/09/16:18:42:47 96/09/17:23:26:51
13101 1000 (-3) nu_mu FLS 1cm 4cm 0 0 960164409 1616833869 99280 C-686 10.2823 96/07/27:13:35:56 96/07/27:16:29:22
13102 4000 nu_mu FLS 1cm 4cm 960164409 1616833869 119216881 1808261617 78976 C-746 10.7262 96/08/07:07:52:25 96/08/08:06:53:21
13201 1000 (-7) nu_tau FLS 1cm 4cm 0 0 1417254644 1410783214 73456 C-701 11.0673 96/07/30:06:58:23 96/07/30:10:04:07
13301 1000 (-1) nu_e FLS 1cm 4cm 0 0 529912160 288826567 107872 Z-1898 8.0394 96/07/29:14:09:21 96/07/29:18:35:32
13302 3257 nu_e FLS 1cm 4cm 529912160 288826567 1180444325 822114741 42272 C-786
16.5268		 ??96/08/07:23:40:17 ??96/08/08:11:58:17 disk full
14101 1000 (-3) nu_mu FLS 4cm 4cm 0 0 1160839606 219951585 97600 C-683 10.0586 96/07/27:06:21:31 96/07/27:09:10:02
14102 4000 nu_mu FLS 4cm 4cm 1160839606 219951585 2016010730 1482832018 67104 Z-1979 5.1324 96/08/05:17:08:53 96/08/06:04:38:03
14201 1000 (-6) nu_tau FLS 4cm 4cm 0 0 1875535650 2072086006 73168 C-702 11.207 96/07/30:10:04:07 96/07/30:13:21:15
14301 1000 (-2) nu_e FLS 4cm 4cm 0 0 1238956535 1036520408 100896 Z-1906 7.4553 96/07/29:18:35:33 96/07/29:22:18:16
14302 4000 nu_e FLS 4cm 4cm 1238956535 1036520408 1252606032 2111210619 38144 C-737 14.5704 96/08/05:19:17:19 96/08/07:07:52:24
21101 1000 (-1) nu_mu LST 1cm 2cm 0 0 322068502 571294373 50848 Z-1931 7.0730 96/07/30:15:01:14 96/07/30:19:12:20
21201 1000 (-6) nu_tau LST 1cm 2cm 0 0 1470170779 2010958060 31312 C-714 16.9094 96/07/31:16:02:45 96/08/01:02:14:14
21301 1000 (-2) nu_e LST 1cm 2cm 0 0 1341888412 958987237 49792 Z-1910 11.0540 96/07/29:22:18:16 96/07/30:04:16:10
22101 1000 (-1) nu_mu FLS 2cm 2cm 0 0 1636175278 220881073 164672 Z-1842 9.2539 96/07/27:03:41:08 96/07/27:09:58:12
22102 4000 nu_mu FLS 2cm 2cm 1636175278 220881073 1136507724 1161067443 115296 C-729 17.2202 96/08/02:19:57:43 96/08/03:23:34:12
22201 1000 (-5) nu_tau FLS 2cm 2cm 0 0 1408784614 1463760636 120048 Z-1915 10.3200 96/07/30:04:16:11 96/07/30:09:39:04
22301 1000 (-1) nu_e FLS 2cm 2cm 0 0 1314546104 1054292770 177280 C-713 24.4044 96/07/30:22:23:09 96/07/31:16:02:09
22302 4000 nu_e FLS 2cm 2cm 1314546104 1054292770 1684776035 1969950694 66560 C-731 24.9116 96/08/03:23:34:12 96/08/05:19:17:18
22303 6000 nu_e FLS 2cm 2cm 1684776035 1969950694 ?
?		 ? C-? ? ?
?
22410 4000 e FLS 2cm 2cm ?
?		 ?
?		 18163 bigbang 3.5890 ?
?
22420 4000 e FLS 2cm 2cm ?
?		 ?
?		 25729 bigbang 9.0480 ?
?
22440 4000 e FLS 2cm 2cm ?
?		 ?
?		 33829 bigbang 17.9075 ?
?
22460 4000 e FLS 2cm 2cm ?
?		 ?
?		 45023 bigbang 35.6901 ?
?
22510 4000 pi+ FLS 2cm 2cm ?
?		 ?
?		 19787 bigbang 1.5971 ?
?
22520 4000 pi+ FLS 2cm 2cm ?
?		 ?
?		 36416 bigbang 4.8496 ?
?
22540 4000 pi+ FLS 2cm 2cm ?
?		 ?
?		 55584 bigbang 10.3275 ?
?
22560 4000 pi+ FLS 2cm 2cm ?
?		 ?
?		 87969 bigbang 22.4706 ?
?
23101 1000 (-2) nu_mu FLS 1cm 4cm 0 0 2139859562 181531138 171856 C-687 17.1036 96/07/27:16:29:22 96/07/27:21:15:49
23102 4000 nu_mu FLS 1cm 4cm 2139859562 181531138 915853409 582498109 126208 C-750 17.7367 96/08/08:06:53:22 96/08/09:17:06:06
23201 1000 (-15) nu_tau FLS 1cm 4cm 0 0 1324071231 381592356 119504 Z-1918 11.1249 96/07/30:09:39:05 96/07/30:15:01:13
23301 1000 (-4) nu_e FLS 1cm 2cm 0 0 1849929164 1666151792 186048 C-697 25.1502 96/07/29:14:10:23 96/07/29:21:27:45
23302 4000 nu_e FLS 1cm 2cm 1849929164 1666151792 751762543 300982503 79680 C-754 25.9547 96/08/09:17:06:06 96/08/11:04:20:xx
24101 1000 (-1) nu_mu FLS 4cm 2cm 0 0 1978049299 1174159469 161728 C-684 15.8703 96/07/27:09:10:01 96/07/27:13:35:56
24102 4000 nu_mu FLS 4cm 2cm 1978049299 1174159469 317526858 1851968727 104640 Z-1995 8.6346 96/08/06:04:38:04 96/08/07:00:22:28
24201 1000 (-4) nu_tau FLS 4cm 2cm 0 0 1975788389 352279126 112240 C-703 19.1223 96/07/30:13:21:15 96/07/30:22:23:08
24301 1000 (-7) nu_e FLS 4cm 2cm 0 0 396836390 1996804575 170640 C-699 22.8554 96/07/29:21:27:45 96/07/30:04:06:49
24302 4000 nu_e FLS 4cm 2cm 396836390 1996804575 32440590 468138136 54224 Z-2011 12.4791 96/08/07:00:22:29 96/08/07:23:40:14

Notes:

The number in parentheses under "events" is the number of events generated by neugen that somehow contained no particles. In early passes these were not caught and so they counted against the number to generate, but they contain no information.

The stated cell sizes are approximate to account for cell wall thicknesses.

Anti-neutrino "oscillations" follow the same pattern as the neutrinos. The flavor designated in the "nu" table column is the predominant type -- not exclusive! The original flux contains the appropriate amount of nu_e and anti-neutrino contamination. These get oscillated by the same fixed permutation. The original flavor is also available in the NeuKin Eset. Thus those runs with labelled mu still represent what would be seen if no oscillations occurred.

There is a small problem (affects < 5% of the events) with the selection of nuclei type in the LST configuration (run=x1x01). These have aluminum combs. Tracking was through the correct materials, but the interaction nuclei relative fractions is wrong for events in the LST detector itself (no aluminum interactions were generated). The Material ESet also has incorrect values for the plane average pseudo-material (wrong A, Z, abs_len, rad_len) and for its Mixture ESet entries. See the status page for more details.

The computers

Chrome ("C")
Zinc ("Z")
bigbang
Robert Hatcher <hatcher@astro.indiana.edu>
Last modified: Wed Apr 23 17:43:39 1997