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1FastJet is released under the terms of the GNU General Public License
2v2 (GPLv2). FastJet includes a significant body of third-party code,
3for example for third party plugin algorithms and for computational
4geometry methods. These too are usually released under the GPL or
5permissive licenses. Details are given below on a case-by-case basis.
6
7A copy of the GPLv2 is to be found at the end of this file.
8
9While the GPL license grants you considerable freedom, please bear in
10mind that FastJet's use falls under guidelines similar to those that
11are standard for Monte Carlo event generators
12(http://www.montecarlonet.org/GUIDELINES). In particular, if you use
13this code as part of work towards a scientific publication, whether
14directly or contained within another program (e.g. Delphes, SpartyJet,
15Rivet, LHC collaboration software frameworks, etc.), you should
16include a citation to
17
18  arXiv:1111.6097 (FastJet User Manual)
19  and, optionally, Phys.Lett.B641 (2006) 57 [arXiv:hep-ph/0512210]
20
21A number of other citations may also be relevant, for example for jet
22areas and subtraction, boosted object taggers, plugins and the
23underlying computational geometry methods and codes. Plugins generally
24indicate the appropriate reference in a banner. References for other
25features are to be found in the FastJet manual.
26
27
28======================================================================
29Plugins
30======================================================================
31
32For the plugin jet finders, the licensing situation is as follows:
33
34----------------------------------------------------------------------
35. ATLAS Cone: the code was taken from SpartyJet v1.20. (GPLv2?)
36  Licensing situation currently undergoing confirmation.
37
38----------------------------------------------------------------------
39. CDF code: originally provided by J.Huston
40
41  See http://www.pa.msu.edu/~huston/Les_Houches_2005/JetClu+Midpoint-StandAlone.tgz
42  for the original code.
43
44  Informal agreement for distribution under the terms of the GPL was
45  obtained from Robert Roser on 13 April 2011. We are awaiting final
46  confirmation.
47 
48
49----------------------------------------------------------------------
50. CMS Iterative Cone:
51  Code taken from http://cmssw.cvs.cern.ch/cgi-bin/cmssw.cgi/CMSSW
52  GPL(v2) (permission granted by R.Harris)
53
54  From: Robert M Harris <rharris@fnal.gov>
55  To: Gregory Soyez <soyez@fastjet.fr>,
56      Matteo Cacciari <cacciari@lpthe.jussieu.fr>,
57      Gavin Salam <salam@lpthe.jussieu.fr>
58  Cc: Daniele.Del.Re@cern.ch,
59      Salvatore Rappoccio <rappoccio@gmail.com>,
60      Robert M Harris <rharris@fnal.gov>
61  Subject: Re: CMS Iterative Cone license
62  Date: Mon, 21 Nov 2011 14:05:55 -0600
63 
64  Dear Gregory, Matteo and Gavin,
65   
66     As a jet object coordinator for the CMS collaboration, and having
67  consulted and obtained the consent of the other authors, I hereby
68  grant you permission to distribute our code for the CMS Iterative
69  Cone jet algorithm under the terms of the GNU Public License (v2).
70 
71  Best Regards,
72  Robert Harris
73
74
75----------------------------------------------------------------------
76. D0 RunI and RunII cone plugins:
77  Standalone version provided by Lars Sonnenschein.
78  Permission to distribute it under the terms of the GPL(v2) granted
79  by Lars Sonnenschein on behalf of the D0 collaboration
80
81  From: Lars Sonnenschein <sonne@mail.cern.ch>
82  To: Gregory Soyez <soyez@fastjet.fr>
83  Cc: Matteo Cacciari <matteo.cacciari@cern.ch>,
84      Gavin Salam <salam@lpthe.jussieu.fr>
85  Subject: Re: D0 cone license
86  Date: Mon, 12 Dec 2011 18:17:05 +0100
87 
88  Dear Gregory, all,
89  after some iterations with the D0 spoke persons and other programmers who
90  have been involved in writing the C++ implementation within the D0
91  software framework, the conclusion is that D0 grants the permission:
92 
93  "As an author of the D0 Run I and D0 Run II cone code, and having
94  consulted and obtained the consent of the other authors (D0 collaboration),
95  I hereby grant you permission to distribute my/our code for the
96  D0 Run I and Run II cone jet algorithms under the terms of the GNU
97  General Public License (v2).".
98 
99  Citation and/or banner should then also give credit to the D0
100  collaboration.
101 
102  Kind regards
103  Lars
104
105
106----------------------------------------------------------------------
107. PxCone code: GPL(v2) (permission granted by M.H.Seymour)
108
109  From: Mike Seymour <Michael.Seymour@cern.ch>
110  To: Gavin Salam <gavin.salam@cern.ch>
111  Subject: Re: PxCone licence
112  Date: Wed, 9 Nov 2011 15:15:08 +0000
113 
114  Dear Gavin,
115
116  As an author of the PxCone code, and having checked that this is
117  acceptable with the other authors of PxCone (Luis Del Pozo and his
118  then PhD supervisor David Ward), I hereby grant you the right to
119  distribute PxCone together with FastJet under a GPL (v2) license.
120
121  Many thanks for dealing with this,
122  Mike.
123
124----------------------------------------------------------------------
125. SISCone code: GPL(v2)
126  see http://projects.hepforge.org/siscone/ for details
127
128----------------------------------------------------------------------
129. TrackJet: available under the GPL (v2) from Rivet (v1.1.2)
130  see http://projects.hepforge.org/rivet/
131
132----------------------------------------------------------------------
133. EECambridge, GridJet, Jade and NestedDefs have been written by the
134  FastJet authors and are thus distributed under the GNU Public
135  License (v2).
136
137----------------------------------------------------------------------
138The "interface" parts of the plugins are GPL (v2).
139
140======================================================================
141CGAL
142======================================================================
143
144CGAL is not distributed with FastJet. Some parts of CGAL are released
145under a QPL license. Given this license's compatibility issues with
146the GPL, and for the purpose of resolving any ambiguity on this point,
147we explicitly grant permission for FastJet to be linked with CGAL.
148
149======================================================================
150Fortune's Voronoi code
151======================================================================
152
153This code, Copyright(c)1994 by AT&T Bell Laboratories is distributed
154under a non-restrictive license that allows for copying, modification
155and distribution as long as the original copyright notice is left
156unchanged. Modifications made subsequently by Shane O'Sullivan and
157Gregory Soyez are distributed under similar conditions.
158
159======================================================================
160Chan's closest neighbour algorithm
161======================================================================
162
163The code for this has been written by the FastJet authors.
164
165
166======================================================================
167======================================================================
168======================================================================
169                    GNU GENERAL PUBLIC LICENSE
170                       Version 2, June 1991
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172 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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394This section is intended to make thoroughly clear what is believed to
395be a consequence of the rest of this License.
396
397  8. If the distribution and/or use of the Program is restricted in
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404
405  9. The Free Software Foundation may publish revised and/or new versions
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409
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416Foundation.
417
418  10. If you wish to incorporate parts of the Program into other free
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424of promoting the sharing and reuse of software generally.
425
426                            NO WARRANTY
427
428  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
429FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
430OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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436REPAIR OR CORRECTION.
437
438  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
439WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
440REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
441INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
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446POSSIBILITY OF SUCH DAMAGES.
447
448                     END OF TERMS AND CONDITIONS
449
450            How to Apply These Terms to Your New Programs
451
452  If you develop a new program, and you want it to be of the greatest
453possible use to the public, the best way to achieve this is to make it
454free software which everyone can redistribute and change under these terms.
455
456  To do so, attach the following notices to the program.  It is safest
457to attach them to the start of each source file to most effectively
458convey the exclusion of warranty; and each file should have at least
459the "copyright" line and a pointer to where the full notice is found.
460
461    <one line to give the program's name and a brief idea of what it does.>
462    Copyright (C) <year>  <name of author>
463
464    This program is free software; you can redistribute it and/or modify
465    it under the terms of the GNU General Public License as published by
466    the Free Software Foundation; either version 2 of the License, or
467    (at your option) any later version.
468
469    This program is distributed in the hope that it will be useful,
470    but WITHOUT ANY WARRANTY; without even the implied warranty of
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472    GNU General Public License for more details.
473
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475    along with this program; if not, write to the Free Software
476    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
477
478
479Also add information on how to contact you by electronic and paper mail.
480
481If the program is interactive, make it output a short notice like this
482when it starts in an interactive mode:
483
484    Gnomovision version 69, Copyright (C) year  name of author
485    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
486    This is free software, and you are welcome to redistribute it
487    under certain conditions; type `show c' for details.
488
489The hypothetical commands `show w' and `show c' should show the appropriate
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491be called something other than `show w' and `show c'; they could even be
492mouse-clicks or menu items--whatever suits your program.
493
494You should also get your employer (if you work as a programmer) or your
495school, if any, to sign a "copyright disclaimer" for the program, if
496necessary.  Here is a sample; alter the names:
497
498  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
499  `Gnomovision' (which makes passes at compilers) written by James Hacker.
500
501  <signature of Ty Coon>, 1 April 1989
502  Ty Coon, President of Vice
503
504This General Public License does not permit incorporating your program into
505proprietary programs.  If your program is a subroutine library, you may
506consider it more useful to permit linking proprietary applications with the
507library.  If this is what you want to do, use the GNU Library General
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