--- /dev/null
+//--------------------------------------------------------------------------
+//
+// Environment:
+// This software is part of the EvtGen package developed jointly
+// for the BaBar and CLEO collaborations. If you use all or part
+// of it, please give an appropriate acknowledgement.
+//
+// Copyright Information: See EvtGen/COPYRIGHT
+// Copyright (C) 1998 Caltech, UCSB
+//
+// Module: EvtGen/EvtVVpipiMoxhay.hh
+//
+// Description: This model is based on the proposal by Tuan and Lipkin
+// (Phys.Lett.B206:349-353,1988) and the subsequent model
+// by Moxhay (Phys.Rev.D39:3497,1989) for the dipion spectrum
+// in Y(3S) -> pi+ pi- Y(1S). Please Note: in Moxhay's paper,
+// he wrote the fitted value of the parameter Im(B)/A as
+// -0.2983. However, using his quoted value leads to the wrong
+// spectrum. Changing the sign of his quoted Im(B)/A fixes the
+// shape and reproduces his result. Therefore, please pass
+// Im(B)/A = 0.2983 and Re(B)/A = 0.2196 to get the correct shape
+// based on his fit to the CLEO data.
+//
+// Example:
+//
+// Decay Upsilon(3S)
+// 1.0000 Upsilon pi+ pi- Y3STOY1SPIPIMOXHAY 0.2196 0.2983;
+// Enddecay
+//
+// --> the order of parameters is: Re(B)/A Im(B)/A
+//
+//
+// Modification history:
+//
+// SEKULA November 02, 2007 Module created
+//
+//------------------------------------------------------------------------
+
+#ifndef EVTY3STOY1SPIPIMOXHAY_HH
+#define EVTY3STOY1SPIPIMOXHAY_HH
+
+#include "EvtGenBase/EvtDecayProb.hh"
+
+class EvtParticle;
+
+class EvtY3SToY1SpipiMoxhay:public EvtDecayProb {
+
+public:
+
+ EvtY3SToY1SpipiMoxhay() {}
+ virtual ~EvtY3SToY1SpipiMoxhay();
+
+ std::string getName();
+ EvtDecayBase* clone();
+
+ void decay(EvtParticle *p);
+ void init();
+ void initProbMax();
+
+};
+
+#endif
+