[[PageOutline]] = GiBUU = The '''GiBUU project''' is aiming to provide an unified transport framework for * '''electron''', * '''photon''', * '''neutrino''', * and '''hadron''' (especially '''pion''') induced reactions on nuclei, * and for '''heavy-ion collisions'''. For those reactions, the flow of particles is modelled within a Boltzmann-Uehling-Uhlenbeck (BUU) framework. The relevant degrees of freedom are mesons and baryons which propagate in mean fields and scatter according to cross sections which are tuned to the energy range of 10 MeV to more than 10 GeV. The new numerical implementation, named '''GiBUU''', is written in modular [http://www.kcl.ac.uk/kis/support/cit/fortran Fortran2003] and based upon a [http://subversion.tigris.org/ Subversion] version control system, which allows for a concise control over the full development phase of the code. The [wiki:GiBUU_Code_history history of the code] is rather long and reports about several main development steps. The present inititiative accomplished a total rewrite of the source code in a present-day computing language. The main goals of this effort were ''modularization'' to allow for a more transparent multi-user development process, a strict ''reduction of global variables'' for a more transparent debugging procedure, an ''improved control over the development phase'' such that modifications can be backtracked and a ''unified standard version''. In the past, every member of the team had its own version of the code whereas in the present situation all members are programming in parallel on one single code. The technical overhead which comes with this is compensated by the benefit of a'' faster distribution of improvements and innovations'' and their ''enhanced sustainability''. GiBUU is being developed at the [http://theorie.physik.uni-giessen.de Institut für Theoretische Physik] of the [http://www.uni-giessen.de Justus-Liebig-Universität Giessen]. ---- == Physics Input == * [wiki:physicsInput Learn more about our model] ---- == Publications, Talks and Seminars == * [wiki:Paper Publications and theses of the GiBUU team] * Presentations at ''DPG Spring Meeting 2007'' (March 12-17): * O. Buss: '''Electron and pion scattering off nuclei''' [/GiBUU/chrome/site/talks/dpg07/buss_dpg07.pdf pdf] * T. Gaitanos: '''Hypernucleus formation in high-energy nuclear collisions''' [/GiBUU/chrome/site/talks/dpg07/gaitanos.ppt ppt] * K. Gallmeister: '''Time Dependent Hadronization via HERMES and EMC Data Consistency''' [/GiBUU/chrome/site/talks/dpg07/DPG07_gallmei.ppt ppt] * A. Larionov: '''Three-baryon collisions in BUU''' * T. Leitner: '''Neutrino induced pion production and nucleon knockout within the GiBUU transport model''' [/GiBUU/chrome/site/talks/dpg07/leitner_DPG2007.pdf pdf] * O. Buss: "Code development & pion DCX", Gießen, Seminar, July 2006. [/GiBUU/chrome/site/talks/bussFriday_July06.pdf pdf] == Visualisations == * '''pion induced reactions''' (low energy) ([wiki:movies movie #1], [wiki:movies2 movie #2]) ---- == The GiBUU Code == * '''[/GiBUU/chrome/site/Documentation/index.html GiBUU Documentation]'''[[BR]] === Used software and tools === * '''Compiling''' [[BR]] * [http://www.intel.de Intel Fortran Compiler], [http://g95.sourceforge.net/ g95] and [http://www.absoft.com/Products/Compilers/Fortran/Linux/fortran95 Absoft Version 10.0]: These compilers implement most features of the [http://www.kcl.ac.uk/kis/support/cit/fortran Fortran2003] standard.[[BR]] * The Build process is steared via GNU make.[[BR]] * Automated Makefile dependencies are generated using [http://personal.inet.fi/private/erikedelmann/makedepf90/ makedepf90] * '''Documentation''' [[BR]] [http://www.xs4all.nl/~rfsber/Robo/robodoc.html ROBODoc] is generating an automatic [/GiBUU/chrome/site/Documentation/index.html code documentation]. * '''Version Control''' [[BR]] Our code is based upon a [http://subversion.tigris.org/ Subversion] version control system. The code can therefore be restored to any time point of its development phase.[[BR]] GUI-Tool: [http://esvn.umputun.com eSvn] * '''Visualisation Tools:''' [[BR]] * povray * Qt * '''Numerical libraries''' [[BR]] * [http://cernlib.web.cern.ch/cernlib/ CERNLIB] * [http://people.scs.fsu.edu/~burkardt/f_src/quadpack/quadpack.html QUADPACK] * '''Physics libraries''' [[BR]] * [http://projects.hepforge.org/pythia6 Pythia and JetSet] * [http://www.kph.uni-mainz.de/MAID/ MAID] === Selected Links connected to (Fortran) Programming === * [http://www.kcl.ac.uk/kis/support/cit/fortran Fortran informations] [[BR]] * O.Buß: "Some short intro to modern Fortran", Gießen, Seminar, May 2005. [http://theorie.physik.uni-giessen.de/~oliver/talks/fortran.pdf pdf] (for f77 devotees) [[BR]] * [wiki:programmingLiterature Literature] === [wiki:wikiInternal Internal pages] === ---- == The GiBUU team == Academical supervisor * [wiki:mosel Prof. Dr. Ulrich Mosel] Current members * [wiki:oliver Dipl.-Phys. Oliver Buss] * [wiki:theo Dr. Theodoros Gaitanos] * [wiki:kai Dr. Kai Gallmeister] * [wiki:david Dipl.-Phys. David Kalok] * [wiki:murat Dr. Murat Kaskulov] * [wiki:alexei Dr. Alexei Larionov] * [wiki:tina Dipl.-Phys. Tina Leitner] * [wiki:birger Birger Steinmüller] * [wiki:janus Janus Weil] Collaborators * [wiki:luis Dr. Luis Alvarez-Ruso] * [wiki:pascal Dr. Pascal Mühlich] [wiki:formemb Former members] === Contact === [http://theorie.physik.uni-giessen.de/ Institut für Theoretische Physik ] [[BR]] Justus-Liebig-Universität Giessen[[BR]] Heinrich-Buff-Ring 16[[BR]] D-35392 Giessen[[BR]] Tel.: +49 (0)641 99-33322[[BR]] [mailto:oliver.buss@theo.physik.uni-giessen.de Email to webmaster] [[BR]] [mailto:GiBUU@theo.physik.uni-giessen.de Email to GiBUU group] ---- {{{ #!html Site Meter }}}