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STARLIGHT code and interface
[u/mrichter/AliRoot.git] / STARLIGHT / starlight / include / .svn / text-base / beam.h.svn-base
diff --git a/STARLIGHT/starlight/include/.svn/text-base/beam.h.svn-base b/STARLIGHT/starlight/include/.svn/text-base/beam.h.svn-base
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+///////////////////////////////////////////////////////////////////////////
+//
+//    Copyright 2010
+//
+//    This file is part of starlight.
+//
+//    starlight is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    starlight is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+//    GNU General Public License for more details.
+//
+//    You should have received a copy of the GNU General Public License
+//    along with starlight. If not, see <http://www.gnu.org/licenses/>.
+//
+///////////////////////////////////////////////////////////////////////////
+//
+// File and Version Information:
+// $Rev::                             $: revision of last commit
+// $Author::                          $: author of last commit
+// $Date::                            $: date of last commit
+//
+// Description:
+//
+//
+//
+///////////////////////////////////////////////////////////////////////////
+
+
+#ifndef BEAM_H
+#define BEAM_H
+
+
+//This calls inclues a single beam of nucleons
+#include "nucleus.h"
+#include "inputParameters.h"
+
+
+class beam : public nucleus
+{
+
+public:
+
+       beam(const int              Z,
+            const int              A,
+            const double           bdeuteron,
+            const bool             dAuCoherentProduction);
+       
+       ~beam();
+
+       double photonFlux(const double impactparameter,
+                         const double photonEnergy) const;  ///< calculates photon density (number of photons / (energy * area))
+
+       double rapidity() const { return acosh(_beamLorentzGamma); }
+       
+       void setBeamLorentzGamma(double gamma) {_beamLorentzGamma = gamma;}
+protected:
+
+       //inputParameters inputbeam;
+       double _beamLorentzGamma;  ///< Lorentz gamma factor of beams in collider frame (from inputParameters)
+
+};
+
+
+#endif  // BEAM_H