GEMC Software License

Version 1.0, August 25, 2025

This software includes voluntary contributions made to the GEMC project. Additional information about GEMC may be provided in the accompanying documentation or repository.

Installation, use, reproduction, display, modification, and redistribution of this software, with or without modification, in source and binary forms, are permitted on a non-exclusive basis. Any exercise of rights by you under this license is subject to the following conditions:

1. Redistributions

Redistributions of this software, in whole or in part, with or without modification, must reproduce the above copyright notice and these license conditions in (a) the source code, (b) the user documentation, and (c) any other materials provided with the redistributed software.

2. User Documentation

The user documentation, if any, included with a redistribution, must include the following notice:

This product includes the GEMC software developed by Maurizio Ungaro
at Thomas Jefferson National Accelerator Facility (Jefferson Lab).

If that is where third-party acknowledgments normally appear, this acknowledgment must also be reproduced in any modified version of this software itself.

3. Scientific Citation

Publications or presentations that use this software or results produced with it must include the following citation:

M. Ungaro, Geant4 Monte-Carlo (GEMC): A database-driven simulation program, 
EPJ Web of Conferences 295, 05005 (2024),
https://doi.org/10.1051/epjconf/202429505005

\bibitem{2024EPJWC.29505005U}
{Ungaro}, M.: Geant4 Monte-Carlo (GEMC) A database-driven simulation program.
\newblock European Physical Journal Web of Conferences \textbf{295}, 05005 (2024).
\newblock \doi{10.1051/epjconf/202429505005}

@INPROCEEDINGS{2024EPJWC.29505005U,
       author = { {Ungaro}, Maurizio,
        title = "{Geant4 Monte-Carlo (GEMC) A database-driven simulation program}",
    booktitle = {European Physical Journal Web of Conferences},
         year = 2024,
       series = {European Physical Journal Web of Conferences},
       volume = {295},
        month = may,
          eid = {05005},
        pages = {05005},
          doi = {10.1051/epjconf/202429505005},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2024EPJWC.29505005U},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

4. Names and Endorsement

The names GEMC and GEMC: Geant4 Monte-Carlo may not be used to endorse or promote software or products derived from this software except with prior written permission from the copyright holders. For permissions, contact: gemc@jlab.org. If this software is redistributed in a modified form, the name and reference of the modified version must be clearly distinguishable from that of this software.

5. Modifications

You are under no obligation to provide anyone with any modifications of this software that you may develop, including but not limited to bug fixes, patches, upgrades, or other enhancements or derivatives of features, functionality, or performance. However, if you publish or distribute your modifications without contemporaneously requiring users to enter into a separate written license agreement, then you are deemed to have granted Maurizio Ungaro, Jefferson Lab, and all contributors to GEMC a license to your modifications, including modifications protected by any patent owned or controlled by you, under the conditions of this license.

6. Patents

You may not include this software, in whole or in part, in any patent o r patent application in respect of any modification of this software developed by you.

7. Third-Party Software

This software may be distributed with or may require third-party components (including, without limitation, Geant4, CLHEP, Qt, ROOT, SQLite, Assimp, and others) that are separately licensed. Such components are provided under their respective licenses, and you must comply with those licenses in addition to this one. Where required (for example, by the Geant4 license), you must reproduce the applicable notices and acknowledgments in your redistribution.

8. DISCLAIMER

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY, AND FITNESS FOR A PARTICULAR PURPOSE OR USE ARE DISCLAIMED. THE COPYRIGHT HOLDERS AND CONTRIBUTORS MAKE NO REPRESENTATION THAT THE SOFTWARE, OR MODIFICATIONS THEREOF, WILL NOT INFRINGE ANY PATENT, COPYRIGHT, TRADE SECRET, OR OTHER PROPRIETARY RIGHT.

9. LIMITATION OF LIABILITY

IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF USE, DATA, OR PROFITS, OR BUSINESS INTERRUPTION, HOWEVER CAUSED AND ON ANY THEORY OF CONTRACT, WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY, OR OTHERWISE, ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

10. Termination

This license shall terminate with immediate effect and without notice if you fail to comply with any of its terms, or if you institute litigation against any copyright holder or contributor with regard to this software.