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Merge pull request #1153 from JeffersonLab/bcal_shower_mems
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Thanks Will!
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markdalton authored Jun 25, 2018
2 parents b770062 + 3c75227 commit 837c19e
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Showing 4 changed files with 50 additions and 3 deletions.
26 changes: 25 additions & 1 deletion src/libraries/BCAL/DBCALCluster.cc
Original file line number Diff line number Diff line change
Expand Up @@ -190,6 +190,7 @@ DBCALCluster::makeFromPoints(){
double sum_sin_phi=0;
double sum_cos_phi=0;
charge = 0;
float t_mean = 0.;

for( vector< const DBCALPoint* >::const_iterator pt = m_points.begin();
pt != m_points.end();
Expand All @@ -203,6 +204,9 @@ DBCALCluster::makeFromPoints(){
if( E == m_E_points || ( (**pt).layer()==1 && charge == 0 ) ) charge = new_point_q;

if ((**pt).layer() == 1) m_E_preshower += E;
if ((**pt).layer() == 2) m_E_L2 += E;
if ((**pt).layer() == 3) m_E_L3 += E;
if ((**pt).layer() == 4) m_E_L4 += E;

double wt1, wt2;
if ( ( m_point_reatten_E_sum == 0 && ( (**pt).layer() != 4 || average_layer4 ) ) ) {
Expand All @@ -223,6 +227,7 @@ DBCALCluster::makeFromPoints(){

m_t += (**pt).tInnerRadius() * wt2;
m_sig_t += (**pt).tInnerRadius() * (**pt).tInnerRadius() * wt2;
t_mean += (**pt).t();

m_theta += (**pt).theta() * wt2;
m_sig_theta += (**pt).theta() * (**pt).theta() * wt2;
Expand All @@ -246,6 +251,9 @@ DBCALCluster::makeFromPoints(){
m_sig_t -= ( m_t * m_t );
m_sig_t = sqrt( m_sig_t );
m_sig_t /= sqrt(n_eff2);

t_mean /= n;

m_theta /= sum_wt2;
/*m_sig_theta /= sum_wt2;
m_sig_theta -= ( m_theta * m_theta );
Expand All @@ -263,6 +271,9 @@ DBCALCluster::makeFromPoints(){
if( m_phi < 0 ) m_phi += 2*TMath::Pi();
// calculate the RMS of phi
m_sig_phi=0;

float t_quad_sum = 0.;

for( vector< const DBCALPoint* >::const_iterator pt = m_points.begin();
pt != m_points.end();
++pt ){
Expand All @@ -283,7 +294,11 @@ DBCALCluster::makeFromPoints(){
deltaPhi = min( fabs( deltaPhi ), fabs( deltaPhiAlt ) );
m_sig_phi += deltaPhi * deltaPhi * wt1;

float t = (**pt).t();
t_quad_sum += (t-t_mean)*(t-t_mean);

}
m_t_rms = sqrt(t_quad_sum/(n+1.));
m_sig_phi /= sum_wt1;
m_sig_phi = sqrt( fabs(m_sig_phi) );
//this should be division, by sqrt(n_eff1), but this works better
Expand Down Expand Up @@ -359,8 +374,13 @@ DBCALCluster::toStrings( vector< pair < string, string > > &items) const {
AddString(items, "t", "%5.2f", m_t );
AddString(items, "E", "%5.2f", m_E );
AddString(items, "E_preshower", "%5.2f", m_E_preshower );
AddString(items, "E_L2", "%5.2f", m_E_L2 );
AddString(items, "E_L3", "%5.2f", m_E_L3 );
AddString(items, "E_L4", "%5.2f", m_E_L4 );
AddString(items, "N_cell", "%i", m_points.size() );
AddString(items, "charge", "%i", charge );
AddString(items, "t_rms", "%5.2f", m_t_rms );

}


Expand All @@ -369,9 +389,13 @@ DBCALCluster::clear(){

m_E = 0;
m_E_points = 0;
m_E_preshower = 0;
m_E_preshower = 0;
m_E_L2 = 0;
m_E_L3 = 0;
m_E_L4 = 0;
m_t = 0;
m_sig_t = 0;
m_t_rms = 0;

m_theta = 0;
m_sig_theta = 0;
Expand Down
12 changes: 10 additions & 2 deletions src/libraries/BCAL/DBCALCluster.h
Original file line number Diff line number Diff line change
Expand Up @@ -40,12 +40,16 @@ class DBCALCluster : public JObject {

float E() const { return m_E; }
float E_preshower() const { return m_E_preshower; }
float E_L2() const { return m_E_L2; }
float E_L3() const { return m_E_L3; }
float E_L4() const { return m_E_L4; }

// this is the time at the inner radius of BCAL assuming shower
// particles propagte into module at the speed of light
float t() const { return m_t; }
float sigT() const { return m_sig_t; }

float rmsTime() const { return m_t_rms; }

// assuming a photon leaving the target, this the estimate of t0
// (could be helpful for photon/pion discrimination)
float t0() const;
Expand Down Expand Up @@ -86,10 +90,14 @@ class DBCALCluster : public JObject {
float m_E_points;
float m_E;
float m_E_preshower;
float m_E_L2;
float m_E_L3;
float m_E_L4;

float m_t;
float m_sig_t;

float m_t_rms;

float m_rho;
float m_sig_rho;
float m_theta;
Expand Down
10 changes: 10 additions & 0 deletions src/libraries/BCAL/DBCALShower.h
Original file line number Diff line number Diff line change
Expand Up @@ -17,13 +17,18 @@ class DBCALShower:public JObject{
float E;
float E_raw;
float E_preshower;
float E_L2;
float E_L3;
float E_L4;
float x;
float y;
float z;
float t;
float sigLong;
float sigTrans;
float sigTheta;
// float sigTime;
float rmsTime;
int N_cell;
int Q;
TMatrixFSym ExyztCovariance;
Expand Down Expand Up @@ -83,6 +88,9 @@ class DBCALShower:public JObject{
AddString(items, "r", "%5.1f", sqrt(x*x+y*y));
AddString(items, "phi", "%5.3f",atan2(y,x));
AddString(items, "E_preshower", "%5.3f", E_preshower);
AddString(items, "E_L2", "%5.3f", E_L2);
AddString(items, "E_L3", "%5.3f", E_L3);
AddString(items, "E_L4", "%5.3f", E_L4);
AddString(items, "N_cell", "%d", N_cell);
AddString(items, "Q", "%d", Q);
AddString(items, "dE", "%5.3f", EErr());
Expand All @@ -103,6 +111,8 @@ class DBCALShower:public JObject{
AddString(items, "sigLong", "%5.3f", sigLong);
AddString(items, "sigTrans", "%5.3f", sigTrans);
AddString(items, "sigTheta", "%5.3f", sigTheta);
// AddString(items, "sigTime", "%5.3f", sigTime);
AddString(items, "rmsTime", "%5.3f", rmsTime);
}
};

Expand Down
5 changes: 5 additions & 0 deletions src/libraries/BCAL/DBCALShower_factory_IU.cc
Original file line number Diff line number Diff line change
Expand Up @@ -145,6 +145,9 @@ DBCALShower_factory_IU::evnt( JEventLoop *loop, uint64_t eventnumber ){

shower->E_raw = (**clItr).E();
shower->E_preshower = (**clItr).E_preshower();
shower->E_L2 = (**clItr).E_L2();
shower->E_L3 = (**clItr).E_L3();
shower->E_L4 = (**clItr).E_L4();
shower->x = rho * sinTh * cosPhi;
shower->y = rho * sinTh * sinPhi;
shower->z = rho * cosTh + m_zTarget;
Expand All @@ -163,6 +166,8 @@ DBCALShower_factory_IU::evnt( JEventLoop *loop, uint64_t eventnumber ){
shower->sigLong = (**clItr).sigRho();
shower->sigTrans = (**clItr).sigPhi();
shower->sigTheta = (**clItr).sigTheta();
// shower->sigTime = (**clItr).sigT();
shower->rmsTime = (**clItr).rmsTime();

shower->N_cell = (**clItr).nCells();

Expand Down

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