Remove the kPSTnctnBnctl phase space since it is unique to

QELEventGenerator and DMELEventGenerator and is never actually used for
sampling kinematics. Also remove DMELEventGenerator for now, as it appears
to have never been fully implemented. After fixes to QELEventGenerator have
been applied, DMELEventGenerator can be rewritten from a better
starting point.

config/master_config.xml

@@ -17,7 +17,6 @@
    <config alg="genie::VertexGenerator">             VertexGenerator.xml             </config>
    <config alg="genie::QELEventGenerator">           QELEventGenerator.xml           </config>
    <config alg="genie::QELEventGeneratorSM">         QELEventGeneratorSM.xml         </config>
-   <config alg="genie::DMELEventGenerator">          DMELEventGenerator.xml          </config>
    <config alg="genie::QELPrimaryLeptonGenerator">   QELPrimaryLeptonGenerator.xml   </config>
    <config alg="genie::DISPrimaryLeptonGenerator">   DISPrimaryLeptonGenerator.xml   </config>
    <config alg="genie::RESPrimaryLeptonGenerator">   RESPrimaryLeptonGenerator.xml   </config>

src/Framework/Conventions/KinePhaseSpace.h

@@ -63,7 +63,6 @@ typedef enum EKinePhaseSpace {
   kPSElOlOpifE,
   kPSElOlTpifE,
   kPSTkTlctl,
-  kPSTnctnBnctl, // Nucleon momentum, angle, binding energy, lepton com angle
   kPSQ2vfE,
   kPSQELEvGen // Phase space used by genie::QELEventGenerator for sampling kinematic variables
               // TODO: rename this value when the correct variables are identified
@@ -116,7 +115,6 @@ class KinePhaseSpace
       case(kPSElOlOpifE)  : return "<{El,Omega_l,Omega_pi}|E>"; break;
       case(kPSElOlTpifE)  : return "<{El,Omega_l,Theta_pi}|E>"; break;
       case(kPSTkTlctl)    : return "<{Tk,Tl,cos(theta_l)}|E>";  break;
-      case(kPSTnctnBnctl) : return "<centre-of-mass plep,Omega_lep, p_p, omega_p|E>"; break;
       case(kPSQ2vfE)      : return "<{Q2,v}|E>"; break;
       // TODO: update this string when the appropriate kinematic variables are known
       case(kPSQELEvGen)   : return "<QELEvGen>"; break;

src/Framework/Utils/KineUtils.cxx

@@ -251,46 +251,6 @@ double genie::utils::kinematics::Jacobian(
     J = 2*constants::kPi;
   }
 
-  // Transformation: centre-of-mass plep,Omega_lep, p_p, omega_p|E
-  // -> QELEvGen
-  // TODO: update this comment when kPSQELEvGen has been renamed
-  else if ( TransformMatched(fromps, tops, kPSTnctnBnctl, kPSQELEvGen, forward) )
-  {
-    // Get the final-state lepton and struck nucleon 4-momenta in the lab frame
-    const TLorentzVector& lepton = i->Kine().FSLeptonP4();
-    const TLorentzVector& outNucleon = i->Kine().HadSystP4();
-
-    // Get beta for a Lorentz boost from the lab frame to the COM frame and
-    // vice-versa
-    TLorentzVector* probe = i->InitStatePtr()->GetProbeP4(kRfLab);
-    const TLorentzVector& target = i->InitStatePtr()->TgtPtr()
-      ->HitNucP4();
-    TLorentzVector total_p4 = (*probe) + target;
-    TVector3 beta_COM_to_lab = total_p4.BoostVector();
-    TVector3 beta_lab_to_COM = -beta_COM_to_lab;
-
-    // Square of the Lorentz gamma factor for the boosts
-    double gamma2 = std::pow(total_p4.Gamma(), 2);
-
-    // Get the final-state lepton 4-momentum in the COM frame
-    TLorentzVector leptonCOM = TLorentzVector( lepton );
-    leptonCOM.Boost( beta_lab_to_COM );
-
-    // Angle between lab-frame muon velocity and velocity of COM frame
-    // as measured in lab frame
-    double theta_J = lepton.Angle( beta_COM_to_lab );
-    double cos_theta_J2 = std::pow(std::cos( theta_J ), 2);
-
-    // Difference in lab frame velocities between lepton and outgoing nucleon
-    TVector3 lepton_vel = ( lepton.Vect() * (1. / lepton.E()) );
-    TVector3 outNucleon_vel = ( outNucleon.Vect() * (1. / outNucleon.E()) );
-    double vel_diff = ( lepton_vel - outNucleon_vel ).Mag();
-
-    // Compute the Jacobian
-    J = 4. * kPi * leptonCOM.P() * leptonCOM.P()
-      * std::sqrt( 1. + (1. - cos_theta_J2)*(gamma2 - 1) ) / vel_diff;
-  }
-
   else {
      SLOG("KineLimits", pFATAL)
        << "*** Can not compute Jacobian for transforming: "