|
|
|
#include <FastMuPropagator.h>
Definition at line 18 of file FastMuPropagator.h.
| cms::FastMuPropagator::FastMuPropagator | ( | const MagneticField * | mf, |
| PropagationDirection | dir = alongMomentum |
||
| ) | [inline] |
Definition at line 20 of file FastMuPropagator.h.
References field, and theFmpConst.
Referenced by clone().
{theFmpConst=new FmpConst(); field = mf;}
| cms::FastMuPropagator::FastMuPropagator | ( | const MagneticField * | mf, |
| FmpConst * | fmp, | ||
| PropagationDirection | dir = alongMomentum |
||
| ) | [inline] |
Definition at line 23 of file FastMuPropagator.h.
References field, and theFmpConst.
{theFmpConst=fmp; field = mf;}
| virtual cms::FastMuPropagator::~FastMuPropagator | ( | ) | [inline, virtual] |
Definition at line 28 of file FastMuPropagator.h.
{
// delete theFmpConst;
}
| bool cms::FastMuPropagator::checkfts | ( | const FreeTrajectoryState & | fts | ) | const [private] |
Definition at line 283 of file FastMuPropagator.cc.
References abs, CastorDataFrameFilter_impl::check(), gather_cfg::cout, FreeTrajectoryState::parameters(), PV3DBase< T, PVType, FrameType >::perp(), GlobalTrajectoryParameters::position(), alignCSCRings::r, PV3DBase< T, PVType, FrameType >::z(), and z.
{
bool check=true;
double z=fts.parameters().position().z();
double r=fts.parameters().position().perp();
float mubarrelrad=theFmpConst->mubarrelrad;
float muforwardrad=theFmpConst->muforwardrad;
float muoffset=theFmpConst->muoffset;
mubarrelrad=350.; muforwardrad=400.;
#ifdef PROPAGATOR_DB
cout<<"checkfts::r,z="<<r<<" "<<z<<" "<<check<<endl;
#endif
if(r<mubarrelrad-muoffset&&abs(z)<muforwardrad-muoffset){
check=false;
#ifdef PROPAGATOR_DB
cout<<"checkfts::false="<<check<<endl;
#endif
}
return check;
}
| virtual FastMuPropagator* cms::FastMuPropagator::clone | ( | void | ) | const [inline, virtual] |
Implements Propagator.
Definition at line 38 of file FastMuPropagator.h.
References alongMomentum, dir, FastMuPropagator(), and field.
{
PropagationDirection dir = alongMomentum;
return new FastMuPropagator(field,dir);
}
| virtual const MagneticField* cms::FastMuPropagator::magneticField | ( | ) | const [inline, virtual] |
Implements Propagator.
Definition at line 60 of file FastMuPropagator.h.
References field.
{return field;}
| TrajectoryStateOnSurface cms::FastMuPropagator::propagate | ( | const FreeTrajectoryState & | state, |
| const Surface & | sur | ||
| ) | const [inline, virtual] |
Propagate from a free state (e.g. position and momentum in in global cartesian coordinates) to a surface. Only use the generic method if the surface type (plane or cylinder) is not known at the calling point.
Reimplemented from Propagator.
Definition at line 44 of file FastMuPropagator.h.
References propagate().
{
return Propagator::propagate( fts, surface);
}
| TrajectoryStateOnSurface cms::FastMuPropagator::propagate | ( | const FreeTrajectoryState & | fts, |
| const Plane & | boundplane | ||
| ) | const [virtual] |
Implements Propagator.
Definition at line 173 of file FastMuPropagator.cc.
References abs, GlobalTrajectoryParameters::charge(), DeDxDiscriminatorTools::charge(), funct::cos(), gather_cfg::cout, FreeTrajectoryState::curvilinearError(), m, CurvilinearTrajectoryError::matrix(), GlobalTrajectoryParameters::momentum(), FreeTrajectoryState::parameters(), PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), phi, GloballyPositioned< T >::position(), GlobalTrajectoryParameters::position(), ptmin, alignCSCRings::r, funct::sin(), launcher::step, funct::tan(), theta(), PV3DBase< T, PVType, FrameType >::theta(), PV3DBase< T, PVType, FrameType >::z(), and z.
{
TrajectoryStateOnSurface badtsos;
#ifdef PROPAGATOR_DB
cout<<"FastMuPropagator::propagate::Start propagation in forward::zvert "<<theFmpConst->zvert<<endl;
#endif
if(!checkfts(fts)) return badtsos;
// Extract information from muchambers
int imin0, imax0;
double ptmax,ptmin,pt,phi,theta,z,r,pl,plmin,plmax;
double dfcalc,phnext;
TrackCharge charge;
float ptboun=theFmpConst->ptboun;
float step=theFmpConst->step;
GlobalVector moment=fts.parameters().momentum();
GlobalPoint posit=fts.parameters().position();
pt=moment.perp();
// Correct theta
double zfts=fts.parameters().position().z()-theFmpConst->zvert;
double rfts=fts.parameters().position().perp();
theta = atan2(rfts,zfts);
#ifdef PROPAGATOR_DB
cout<<"FastMuPropagator::propagate::Start propagation in forward::theta old, new "<<moment.theta()<<" "<<theta<<endl;
#endif
phi=posit.phi();
ptmax=pt+fts.curvilinearError().matrix()(1,1);
ptmin=pt-fts.curvilinearError().matrix()(1,1);
pl=pt/tan(theta);
plmin=ptmin/tan(theta);
plmax=ptmax/tan(theta);
imax0=(int)((ptmax-ptboun)/step)+1;
imin0=(int)((ptmin-ptboun)/step)+1;
#ifdef PROPAGATOR_DB
cout<<"FastMuPropagator::Look ptboun,step,imin0,imax0="<<ptboun<<" "<<step<<
" "<<imin0<<" "<<imax0<<endl;
cout<<"FastMuPropagator::Parameters (pt,theta,phi,ptmax,ptmin)="<<pt<<" "
<<theta<<" "<<phi<<" "<<ptmax<<" "<<ptmin<<endl;
#endif
if(imax0 > 1){
if(imin0<1) imin0=1;
z=boundplane.position().z();
r=(z-theFmpConst->zvert)*tan(theta);
charge=fts.parameters().charge();
// pl evaluation
dfcalc=theFmpConst->forwparam[0]+
charge*theFmpConst->forwparam[1]/abs(pl);
phnext=dfcalc+phi;
if(phnext>=twopi) phnext=phnext-twopi;
if(phnext <0.) phnext=twopi+phnext;
#ifdef PROPAGATOR_DB
cout<<"FastMuPropagator::Phi in Muon Chamb="<<phi<<endl;
cout<<"FastMuPropagator::Phnext determined="<<phnext<<" dfcalc="<<dfcalc<<endl;
#endif
int iwin;
float awin,bwin,phbound;
AlgebraicSymMatrix55 m;
if(pt>40.) {
phbound=theFmpConst->phiwinf[7];
}else{ // r < bound
iwin=(int)(pt/theFmpConst->ptstep);
awin=(theFmpConst->phiwinf[iwin+1]-theFmpConst->phiwinf[iwin])
/(theFmpConst->ptwmax[iwin]-theFmpConst->ptwmin[iwin]);
bwin=theFmpConst->phiwinf[iwin]-awin*theFmpConst->ptwmin[iwin];
phbound=awin*pt+bwin;
}
#ifdef PROPAGATOR_DB
cout<<"Forward::Size of window in phi="<<phbound<<endl;
#endif
m(0,0)=abs(plmax-plmin)/6.; m(1,1)=phbound/theFmpConst->sigf;
m(2,2)=theFmpConst->zwin/theFmpConst->sigz;
m(3,3)=phbound/(2.*theFmpConst->sigf);m(4,4)=theFmpConst->zwin/(2.*theFmpConst->sigz);
GlobalPoint aX(r*cos(phnext),r*sin(phnext),z);
// Recalculate momentum with some trick...
double dfcalcmom=charge*theFmpConst->partrack*abs(z)/abs(pl);
GlobalVector aP(pt*cos(phnext-dfcalcmom),pt*sin(phnext-dfcalcmom),pl);
#ifdef PROPAGATOR_DB
cout<<"dfcalcmom="<<charge<<" "<<theFmpConst->partrack<<" "<<z<<" "<<pl<<" "<<phnext<<endl;
cout<<"phnextmom="<<phnext-dfcalcmom<<endl;
cout<<"Plane aP="<<aP<<endl;
cout<<"Before propagation="<<pt*cos(phi)<< " "<<pt*sin(phi)<<" "<<pl<<endl;
#endif
GlobalTrajectoryParameters gtp(aX,aP,charge,field);
CurvilinearTrajectoryError cte(m);
TrajectoryStateOnSurface tsos(gtp, CurvilinearTrajectoryError(m), boundplane);
return tsos;
}
return badtsos;
}
| TrajectoryStateOnSurface cms::FastMuPropagator::propagate | ( | const FreeTrajectoryState & | fts, |
| const Cylinder & | bound | ||
| ) | const [virtual] |
Implements Propagator.
Definition at line 22 of file FastMuPropagator.cc.
References abs, GlobalTrajectoryParameters::charge(), DeDxDiscriminatorTools::charge(), funct::cos(), gather_cfg::cout, FreeTrajectoryState::curvilinearError(), m, CurvilinearTrajectoryError::matrix(), GlobalTrajectoryParameters::momentum(), FreeTrajectoryState::parameters(), PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), phi, pi, GlobalTrajectoryParameters::position(), ptmin, Cylinder::radius(), funct::sin(), launcher::step, funct::tan(), theta(), PV3DBase< T, PVType, FrameType >::theta(), PV3DBase< T, PVType, FrameType >::z(), and z.
Referenced by propagate().
{
TrajectoryStateOnSurface badtsos;
if(!checkfts(fts)) return badtsos;
#ifdef PROPAGATOR_DB
cout<<"FastMuPropagator::propagate::Start propagation in barrel::zvert "<<theFmpConst->zvert<<endl;
#endif
// Extract information from muchambers
int charge;
int imin0, imax0;
double ptmax,ptmin,pt,phi,theta,z,pl;
double dfcalc,phnext,bound;
float ptboun=theFmpConst->ptboun;
float step=theFmpConst->step;
GlobalVector moment=fts.parameters().momentum();
GlobalPoint posit=fts.parameters().position();
pt=moment.perp();
// Correct theta
double zfts=fts.parameters().position().z()-theFmpConst->zvert;
double rfts=fts.parameters().position().perp();
theta = atan2(rfts,zfts);
#ifdef PROPAGATOR_DB
cout<<"FastMuPropagator::propagate::Start propagation in barrel::theta old, new "<<moment.theta()<<" "<<theta<<endl;
#endif
phi=posit.phi();
ptmax=pt+fts.curvilinearError().matrix()(1,1);
ptmin=pt-fts.curvilinearError().matrix()(1,1);
bound=boundcyl.radius();
charge=fts.parameters().charge();
imax0=(int)((ptmax-ptboun)/step)+1;
imin0=(int)((ptmin-ptboun)/step)+1;
#ifdef PROPAGATOR_DB
cout<<"FastMuPropagator::Look ptboun,step,imin0,imax0="<<ptboun<<" "<<step<<
" "<<imin0<<" "<<imax0<<endl;
cout<<"FastMuPropagator::Parameters (pt,theta,phi,ptmax,ptmin,bound)="<<pt<<" "
<<theta<<" "<<phi<<" "<<ptmax<<" "<<ptmin<<" "<<bound<<endl;
#endif
if(imax0 > 1){
if(imin0<1) imin0=1;
// ========================== phi ========================================
// new parametrisation (because of second mu-station)
//
#ifdef PROPAGATOR_DB
cout<<"FastMuPropagator::New parameters="<<theFmpConst->newparam[0]<<endl;
cout<<"FastMuPropagator::New parameters for pt>40="<<
theFmpConst->newparamgt40[0]<<endl;
#endif
if(pt<40.) {
dfcalc=charge/(theFmpConst->newparam[0]+theFmpConst->newparam[1]*pt
+theFmpConst->newparam[2]*pt*pt);
}else{
dfcalc=charge/(theFmpConst->newparamgt40[0]+
theFmpConst->newparamgt40[1]*pt+theFmpConst->newparamgt40[2]*pt*pt);
}
//
// !!!! temporarily decision till new parametrization appears.
//
if (abs(dfcalc) > 0.6 ) dfcalc = charge*0.6;
phnext=dfcalc+phi;
if(phnext>=twopi) phnext=phnext-twopi;
if(phnext <0.) phnext=twopi+phnext;
#ifdef PROPAGATOR_DB
cout<<"FastMuPropagator::Phi in Muon Chamb="<<phi<<endl;
cout<<"FastMuPropagator::Phnext determined="<<phnext<<" dfcalc="<<dfcalc<<endl;
#endif
// ========================== Z ========================================
if(abs(theta-pi/2.)>0.00001){
z=bound/tan(theta)+theFmpConst->zvert;
if(fabs(z)>140) {
// Temporary implementation =====
// if(z>0.) z = z-45.;
// if(z<0.) z = z+45.;
// ==============================
}
}else{
z=0.;
}
#ifdef PROPAGATOR_DB
cout<<"FastMuPropgator::Z coordinate="<<z<<"bound="<<bound<<"theta="<<theta<<" "<<
abs(theta-pi/2.)<<endl;
#endif
// ====================== fill global point/vector =======================
GlobalPoint aX(bound*cos(phnext),bound*sin(phnext),z);
if(abs(theta-pi/2.)<0.00001){
pl=0.;
}else{
pl=pt/tan(theta);
}
// Recalculate momentum with some trick...
double dfcalcmom=charge*theFmpConst->partrack*bound/pt;
GlobalVector aP(pt*cos(phnext-dfcalcmom),pt*sin(phnext-dfcalcmom),pl);
#ifdef PROPAGATOR_DB
cout<<"phnextmom="<<phnext-dfcalcmom<<endl;
cout<<"Cylinder aP="<<aP<<endl;
cout<<"Before propagation="<<pt*cos(phi)<< " "<<pt*sin(phi)<<" "<<pl<<endl;
#endif
// =======================================================================
GlobalTrajectoryParameters gtp(aX,aP,charge,field);
AlgebraicSymMatrix55 m;
int iwin;
float awin,bwin,phbound;
if(pt>40.) {
iwin=8;
phbound=theFmpConst->phiwinb[7];
}else{
iwin=(int)(pt/theFmpConst->ptstep);
awin=(theFmpConst->phiwinb[iwin+1]-theFmpConst->phiwinb[iwin])
/(theFmpConst->ptwmax[iwin]-theFmpConst->ptwmin[iwin]);
bwin=theFmpConst->phiwinb[iwin]-awin*theFmpConst->ptwmin[iwin];
phbound=awin*pt+bwin;
}
#ifdef PROPAGATOR_DB
cout<<"Size of window in phi="<<phbound<<" "<<iwin<<endl;
cout<<theFmpConst->phiwinb[iwin+1]<<" "<<theFmpConst->phiwinb[iwin]
<<" "<<theFmpConst->ptwmin[iwin]<<
" "<<theFmpConst->ptwmax[iwin]<<" awin="<<awin<<" bwin="<<bwin<<endl;
#endif
m(0,0)=(ptmax-ptmin)/6.; m(1,1)=phbound/theFmpConst->sigf;
m(2,2)=theFmpConst->zwin/theFmpConst->sigz;
m(3,3)=phbound/(2.*theFmpConst->sigf);m(4,4)=theFmpConst->zwin/(2.*theFmpConst->sigz);
CurvilinearTrajectoryError cte(m);
FreeTrajectoryState fts(gtp,cte);
TrajectoryStateOnSurface tsos(gtp, CurvilinearTrajectoryError(m), boundcyl);
return tsos;
}
return badtsos;
}
| virtual std::pair< TrajectoryStateOnSurface, double> cms::FastMuPropagator::propagateWithPath | ( | const FreeTrajectoryState & | state, |
| const Cylinder & | bc | ||
| ) | const [inline, virtual] |
Implements Propagator.
Definition at line 55 of file FastMuPropagator.h.
{
std::pair<TrajectoryStateOnSurface,double> tp;
return tp;
}
| virtual std::pair< TrajectoryStateOnSurface, double> cms::FastMuPropagator::propagateWithPath | ( | const FreeTrajectoryState & | state, |
| const Plane & | bc | ||
| ) | const [inline, virtual] |
Implements Propagator.
Definition at line 50 of file FastMuPropagator.h.
{
std::pair<TrajectoryStateOnSurface,double> tp;
return tp;
}
const MagneticField* cms::FastMuPropagator::field [private] |
Definition at line 65 of file FastMuPropagator.h.
Referenced by clone(), FastMuPropagator(), and magneticField().
FmpConst* cms::FastMuPropagator::theFmpConst [private] |
Definition at line 64 of file FastMuPropagator.h.
Referenced by FastMuPropagator().
1.7.3