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COPYING
1 FastJet is released under the terms of the GNU General Public License
2 v2 (GPLv2). FastJet includes a significant body of third-party code,
3 for example for third party plugin algorithms and for computational
4 geometry methods. These too are usually released under the GPL or
5 permissive licenses. Details are given below on a case-by-case basis.
6 
7 A copy of the GPLv2 is to be found at the end of this file.
8 
9 While the GPL license grants you considerable freedom, please bear in
10 mind that FastJet's use falls under guidelines similar to those that
11 are standard for Monte Carlo event generators
12 (http://www.montecarlonet.org/GUIDELINES). In particular, if you use
13 this code as part of work towards a scientific publication, whether
14 directly or contained within another program (e.g. Delphes, SpartyJet,
15 Rivet, LHC collaboration software frameworks, etc.), you should
16 include a citation to
17 
18  arXiv:1111.6097 (FastJet User Manual)
19  and, optionally, Phys.Lett.B641 (2006) 57 [arXiv:hep-ph/0512210]
20 
21 A number of other citations may also be relevant, for example for jet
22 areas and subtraction, boosted object taggers, plugins and the
23 underlying computational geometry methods and codes. Plugins generally
24 indicate the appropriate reference in a banner. References for other
25 features are to be found in the FastJet manual.
26 
27 
28 ======================================================================
29 Plugins
30 ======================================================================
31 
32 For 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 ----------------------------------------------------------------------
138 The "interface" parts of the plugins are GPL (v2).
139 
140 ======================================================================
141 CGAL
142 ======================================================================
143 
144 CGAL is not distributed with FastJet. Some parts of CGAL are released
145 under a QPL license. Given this license's compatibility issues with
146 the GPL, and for the purpose of resolving any ambiguity on this point,
147 we explicitly grant permission for FastJet to be linked with CGAL.
148 
149 ======================================================================
150 Fortune's Voronoi code
151 ======================================================================
152 
153 This code, Copyright(c)1994 by AT&T Bell Laboratories is distributed
154 under a non-restrictive license that allows for copying, modification
155 and distribution as long as the original copyright notice is left
156 unchanged. Modifications made subsequently by Shane O'Sullivan and
157 Gregory Soyez are distributed under similar conditions.
158 
159 ======================================================================
160 Chan's closest neighbour algorithm
161 ======================================================================
162 
163 The code for this has been written by the FastJet authors.
164 
165 
166 ======================================================================
167 ======================================================================
168 ======================================================================
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