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modified: TrackRecon.C

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This commit is contained in:
Vignesh Sitaraman 2026-09-09 10:49:17 -04:00
parent 9b2c20daca
commit 83114262db
1 changed files with 67 additions and 117 deletions
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TrackRecon.C
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@ -43,8 +43,8 @@ Int_t colors[40] = {
bool process_alpha_proton_scattering = false,
doMiscHistograms = true,
doRawHistos = false,
doPCSX3ClusterAnalysis = true,
doPCQQQClusterAnalysis = true,
doPCSX3ClusterAnalysis = false,
doPCQQQClusterAnalysis = false,
doOldAnalysis = false,
BenchMark = false,
onewire_analysis = true,
@ -61,12 +61,8 @@ bool process_alpha_proton_scattering = false,
// 1175mm instead of 1105, plus some part of the window actually lies outside the chamber
double source_vertex = 53.0,
z_entrance = -174.3 - 9.7 - 270.0,
dither_sigma = 8.0, // single pcz dither width; A1C0/A1C1/A1C2 all use this.
// dither_sigma_c0 (=16.0, always consumed as /2.0) was
// removed -- numerically identical at the default but it
// desynced from dither_sigma the moment DITHER_SIGMA was
// set, giving the QQQ and SX3 twins a silent 2x difference.
cathode_gain = 1.0,
dither_sigma = 8.0,
cathode_gain = 1.0,
a1c1_cfrac_split = 0.0,
a1c1_missing_fmax = 2.0,
a1c1_lowband_rfactor = 0.0,
@ -179,60 +175,60 @@ inline double beamPerp(const TVector3 &p)
return perp.Mag();
}
inline void fillBeamProfile(HistPlotter *plotter, const TVector3 &vertex,
const TVector3 &si, const TVector3 &dir, const std::string &tag,
bool axisSafe)
{
const std::string folder = "BeamAxis";
const std::string all = "beamAxis_all_";
const std::string one = "beamAxis_" + tag + "_";
double vx = vertex.X(), vy = vertex.Y(), vz = vertex.Z();
double pocaDist = beamPerp(vertex);
plotter->Fill2D(all + "vertexX_vs_Z", 250, -450, 50, 200, -50, 50, vz, vx, folder);
plotter->Fill2D(all + "vertexY_vs_Z", 250, -450, 50, 200, -50, 50, vz, vy, folder);
plotter->Fill1D(all + "pocaDist", 400, 0, 100, pocaDist, folder);
// Per-branch copy so anomalies can be traced to a specific reconstruction path.
plotter->Fill2D(one + "vertexX_vs_Z", 250, -450, 50, 200, -50, 50, vz, vx, folder);
plotter->Fill2D(one + "vertexY_vs_Z", 250, -450, 50, 200, -50, 50, vz, vy, folder);
plotter->Fill1D(one + "pocaDist", 400, 0, 100, pocaDist, folder);
const double zLo = -440.0, zHi = 40.0;
const int nSlice = 16;
const double sliceW = (zHi - zLo) / nSlice; // 30 mm
// inline void fillBeamProfile(HistPlotter *plotter, const TVector3 &vertex,
// const TVector3 &si, const TVector3 &dir, const std::string &tag,
// bool axisSafe)
// {
// const std::string folder = "BeamAxis";
// const std::string all = "beamAxis_all_";
// const std::string one = "beamAxis_" + tag + "_";
// double vx = vertex.X(), vy = vertex.Y(), vz = vertex.Z();
// double pocaDist = beamPerp(vertex);
// plotter->Fill2D(all + "vertexX_vs_Z", 250, -450, 50, 200, -50, 50, vz, vx, folder);
// plotter->Fill2D(all + "vertexY_vs_Z", 250, -450, 50, 200, -50, 50, vz, vy, folder);
// plotter->Fill1D(all + "pocaDist", 400, 0, 100, pocaDist, folder);
// // Per-branch copy so anomalies can be traced to a specific reconstruction path.
// plotter->Fill2D(one + "vertexX_vs_Z", 250, -450, 50, 200, -50, 50, vz, vx, folder);
// plotter->Fill2D(one + "vertexY_vs_Z", 250, -450, 50, 200, -50, 50, vz, vy, folder);
// plotter->Fill1D(one + "pocaDist", 400, 0, 100, pocaDist, folder);
// const double zLo = -440.0, zHi = 40.0;
// const int nSlice = 16;
// const double sliceW = (zHi - zLo) / nSlice; // 30 mm
if (vz >= zLo && vz < zHi)
{
int is = static_cast<int>((vz - zLo) / sliceW);
if (is >= 0 && is < nSlice)
{
char buf[8];
snprintf(buf, sizeof(buf), "%02d", is);
plotter->Fill2D(all + "vertexXY_z" + buf, 200, -50, 50, 200, -50, 50, vx, vy, folder);
}
}
// if (vz >= zLo && vz < zHi)
// {
// int is = static_cast<int>((vz - zLo) / sliceW);
// if (is >= 0 && is < nSlice)
// {
// char buf[8];
// snprintf(buf, sizeof(buf), "%03d", is);
// plotter->Fill2D(all + "vertexXY_z" + buf, 200, -50, 50, 200, -50, 50, vx, vy, folder);
// }
// }
double dz = dir.Z();
double vzBin = beamVertexNominal(si, dir).Z();
if (axisSafe && TMath::Abs(dz) > 1e-6 && vzBin >= zLo && vzBin < zHi)
{
int k = static_cast<int>((vzBin - zLo) / sliceW);
if (k >= 0 && k < nSlice)
{
double zPlane = zLo + (k + 0.5) * sliceW;
double s = (zPlane - si.Z()) / dz;
double cx = si.X() + s * dir.X();
double cy = si.Y() + s * dir.Y();
if (TMath::Abs(cx) < 100.0 && TMath::Abs(cy) < 100.0)
{
char kbuf[8];
snprintf(kbuf, sizeof(kbuf), "%02d", k);
plotter->Fill1D(all + "crossX_z" + kbuf, 800, -100, 100, cx, folder);
plotter->Fill1D(all + "crossY_z" + kbuf, 800, -100, 100, cy, folder);
plotter->Fill1D(one + "crossX_z" + kbuf, 800, -100, 100, cx, folder);
plotter->Fill1D(one + "crossY_z" + kbuf, 800, -100, 100, cy, folder);
}
}
}
}
// double dz = dir.Z();
// double vzBin = beamVertexNominal(si, dir).Z();
// if (axisSafe && TMath::Abs(dz) > 1e-6 && vzBin >= zLo && vzBin < zHi)
// {
// int k = static_cast<int>((vzBin - zLo) / sliceW);
// if (k >= 0 && k < nSlice)
// {
// double zPlane = zLo + (k + 0.5) * sliceW;
// double s = (zPlane - si.Z()) / dz;
// double cx = si.X() + s * dir.X();
// double cy = si.Y() + s * dir.Y();
// if (TMath::Abs(cx) < 100.0 && TMath::Abs(cy) < 100.0)
// {
// char kbuf[8];
// snprintf(kbuf, sizeof(kbuf), "%03d", k);
// plotter->Fill1D(all + "crossX_z" + kbuf, 800, -100, 100, cx, folder);
// plotter->Fill1D(all + "crossY_z" + kbuf, 800, -100, 100, cy, folder);
// plotter->Fill1D(one + "crossX_z" + kbuf, 800, -100, 100, cx, folder);
// plotter->Fill1D(one + "crossY_z" + kbuf, 800, -100, 100, cy, folder);
// }
// }
// }
// }
struct PCPath
{
@ -505,27 +501,6 @@ inline std::string pad2(int n)
return (n < 10 ? "0" : "") + std::to_string(n);
}
// Vertex-z slicing for detector-angle maps: 10 cm wide, covering the physical
// vertex acceptance. Labels carry the slice edges in mm ('m' = minus), so
// histogram names stay unique per slice -- HistPlotter keys oMap by name only.
static const double kVertexZSliceWidth = 20.0; // mm (10 cm)
static const double kVertexZSliceMax = 400.0; // mm, symmetric about z = 0
// Returns e.g. "z_m200_m100" for z = -137 mm, or "" when z falls outside
// +-kVertexZSliceMax (callers skip the fill).
inline std::string vertexZSliceTag(double z)
{
if (!(std::fabs(z) < kVertexZSliceMax))
return "";
const double lo = std::floor(z / kVertexZSliceWidth) * kVertexZSliceWidth;
auto fmt = [](double v)
{
const int i = static_cast<int>(std::lround(v));
return i < 0 ? "m" + std::to_string(-i) : std::to_string(i);
};
return "z_" + fmt(lo) + "_" + fmt(lo + kVertexZSliceWidth);
}
HistPlotter *plotter;
TCutG *siMcpRfGate1Cut = nullptr;
@ -2007,7 +1982,7 @@ Bool_t TrackRecon::Process(Long64_t entry)
plotter->Fill2D("dt(sx3,rf)_vs_(rf,mcp)", 1600, -2000, 2000, 1280, -2000, 2000, dt_sx3_rf, dt_rf_mcp, "misc");
plotter->Fill2D("dt_(sx3,mcp)_vs_(sx3,rf)", 1600, -1400, 2000, 1280, -2000, 2000, dt_sx3_mcp, dt_sx3_rf, "misc");
plotter->Fill2D("dt_(sx3,mcp)_vs_(rf,mcp)", 2000, -1400, 1000, 1280, -2000, 2000, dt_sx3_mcp, dt_rf_mcp, "misc");
plotter->Fill2D("dt_(si,mcp)_vs_(rf,mcp)", 2000, -1400, 1000, 1280, -2000, 2000, dt_qqq_mcp, dt_rf_mcp, "misc");
plotter->Fill2D("dt_(si,mcp)_vs_(rf,mcp)", 2000, -1400, 1000, 1280, -2000, 2000, dt_sx3_mcp, dt_rf_mcp, "misc");
}
ctr += 1;
}
@ -2178,8 +2153,7 @@ void protonAlphaHistograms(HistPlotter *plotter, const std::vector<Event> &QQQ_E
// purely longitudinal direction.
TVector3 r_rhoMin_fix = beamVertex(x1, v);
double vertex_z = r_rhoMin_fix.Z();
fillBeamProfile(plotter, r_rhoMin_fix, x1, v, "apCoinc",
pcevent.multi1 == 1 && pcevent.multi2 == 2);
// fillBeamProfile(plotter, r_rhoMin_fix, x1, v, "apCoinc", pcevent.multi1 == 1 && pcevent.multi2 == 2);
double theta_q = (qqqevent.pos - beamAxisPoint(vertex_z)).Theta();
// double theta_q = (qqqevent.pos - r_rhoMin_fix).Theta();
double sinTheta_customV = TMath::Sin(theta_q);
@ -2620,7 +2594,7 @@ void PCSX3ClusterAnalysis(HistPlotter *plotter, const std::vector<Event> &QQQ_Ev
// beam axis at (0,0), silently ignoring BEAM_AXIS_X/Y, and had no guard for a
// purely longitudinal direction.
TVector3 r_rhoMin_fix = beamVertex(x1, v);
fillBeamProfile(plotter, r_rhoMin_fix, x1, v, "sx3a1c2", true); // a1c2 only, gated above
// fillBeamProfile(plotter, r_rhoMin_fix, x1, v, "sx3a1c2", true); // a1c2 only, gated above
plotter->Fill1D("VertexRecon_pczfix_sx3", 800, -300, 300, r_rhoMin_fix.Z(), "Vertex_Reconstruction");
plotter->Fill1D("VertexRecon_pczfix", 800, -300, 300, r_rhoMin_fix.Z(), "Vertex_Reconstruction");
plotter->Fill1D("pczfix_A1C2_1d_sx3", 600, -200, 200, pcz_fix, "PCZ_Recon");
@ -2634,20 +2608,6 @@ void PCSX3ClusterAnalysis(HistPlotter *plotter, const std::vector<Event> &QQQ_Ev
plotter->Fill1D("pczfix-sx3pczguess_A1C2", 200, -100, 100, pcz_fix - pczguess, "Residuals");
plotter->Fill2D("pczfix_vs_sx3pczguess_A1C2_strip" + std::to_string(sx3event.ch2), 300, -200, 200, 600, -200, 200, pczguess, pcevent.pos.Z(), "PCZ_Recon");
// Si theta vs phi, sliced in 10 cm of reconstructed vertex z. theta is
// measured from the beam axis at the vertex z (same convention as the
// kinematics plots); phi is the detector-frame azimuth.
{
const double si_theta_deg = (sx3event.pos - beamAxisPoint(r_rhoMin_fix.Z())).Theta() * 180.0 / M_PI;
const double si_phi_deg = sx3event.pos.Phi() * 180.0 / M_PI;
plotter->Fill2D("siTheta_vs_siPhi_SX3_A1C2_all", 180, 0, 180, 180, -180, 180,
si_theta_deg, si_phi_deg, "theta_v_phi_sx3");
const std::string zslice = vertexZSliceTag(r_rhoMin_fix.Z());
if (!zslice.empty())
plotter->Fill2D("siTheta_vs_siPhi_SX3_A1C2_" + zslice, 180, 0, 180, 180, -180, 180,
si_theta_deg, si_phi_deg, "theta_v_phi_sx3");
}
double sinTheta_customV = TMath::Sin((sx3event.pos - beamAxisPoint(r_rhoMin_fix.Z())).Theta());
plotter->Fill2D("dE3_E_CathodeSX3_A1C2_TC" + std::to_string(PCSX3TimeCut) + "_PC" + std::to_string(phicut), 400, 0, 30, 800, 0, 10000, sx3event.Energy1, pcevent.Energy2 * sinTheta_customV, "PID_dE_E");
plotter->Fill2D("dE3_E_AnodeSX3_A1C2_TC" + std::to_string(PCSX3TimeCut) + "_PC" + std::to_string(phicut), 400, 0, 30, 800, 0, 40000, sx3event.Energy1, pcevent.Energy1 * sinTheta_customV, "PID_dE_E");
@ -3186,21 +3146,7 @@ void PCQQQClusterAnalysis(HistPlotter *plotter, const std::vector<Event> &QQQ_Ev
// beam axis at (0,0), silently ignoring BEAM_AXIS_X/Y, and had no guard for a
// purely longitudinal direction.
TVector3 r_rhoMin_fix = beamVertex(x1, v);
fillBeamProfile(plotter, r_rhoMin_fix, x1, v, "qqqa1c2", true); // a1c2 only, gated above
// Si theta vs phi, sliced in 10 cm of reconstructed vertex z. theta is
// measured from the beam axis at the vertex z (same convention as the
// kinematics plots); phi is the detector-frame azimuth.
{
const double si_theta_deg = (qqqevent.pos - beamAxisPoint(r_rhoMin_fix.Z())).Theta() * 180.0 / M_PI;
const double si_phi_deg = qqqevent.pos.Phi() * 180.0 / M_PI;
plotter->Fill2D("siTheta_vs_siPhi_QQQ_A1C2_all", 180, 0, 180, 180, -180, 180,
si_theta_deg, si_phi_deg, "theta_v_phi_qqq");
const std::string zslice = vertexZSliceTag(r_rhoMin_fix.Z());
if (!zslice.empty())
plotter->Fill2D("siTheta_vs_siPhi_QQQ_A1C2_" + zslice, 180, 0, 180, 180, -180, 180,
si_theta_deg, si_phi_deg, "theta_v_phi_qqq");
}
// fillBeamProfile(plotter, r_rhoMin_fix, x1, v, "qqqa1c2", true); // a1c2 only, gated above
double sinTheta_customV = TMath::Sin((qqqevent.pos - beamAxisPoint(r_rhoMin_fix.Z())).Theta());
plotter->Fill2D("dE3_E_CathodeQQQR_A1C2_TC1_PC" + std::to_string(phicut), 400, 0, 30, 800, 0, 10000, qqqevent.Energy1, pcevent.Energy2 * sinTheta_customV, "PID_dE_E");
@ -3759,7 +3705,7 @@ void protonAlphaElastic_core(HistPlotter *plotter, const std::vector<Event> &Si_
TVector3 r_rhoMin_fix = beamVertex(sievent.pos, x2f - sievent.pos);
double vertex_z = r_rhoMin_fix.Z();
const bool axisSafe = (multi2 == 2) || (multi1 == 2 && multi2 == 0);
fillBeamProfile(plotter, r_rhoMin_fix, sievent.pos, x2f - sievent.pos, "elastic_" + det, axisSafe);
// fillBeamProfile(plotter, r_rhoMin_fix, sievent.pos, x2f - sievent.pos, "elastic_" + det, axisSafe);
if (vertex_z < z_entrance)
return;
double theta = (sievent.pos - r_rhoMin_fix).Theta();
@ -3798,6 +3744,8 @@ void protonAlphaElastic_core(HistPlotter *plotter, const std::vector<Event> &Si_
plotter->Fill2D(rx + "_Ef_vs_theta" + ejtag + sfx, 100, 0, 180, 800, 0, 10, theta * 180 / M_PI, Efix, pmlabel);
plotter->Fill2D(rx + "_Ex_vs_theta" + ejtag + sfx, 720, 0, 180, 800, -10, 10, theta * 180 / M_PI, Ex, pmlabel);
plotter->Fill2D(rx + "_Ex_vs_phi" + ejtag + sfx, 180, -180, 180, 800, -10, 10, sievent.pos.Phi() * 180 / M_PI, Ex, pmlabel);
plotter->Fill2D(rx + "_Ex_vs_X" + ejtag + sfx, 800, -200, 200, 800, -10, 10, sievent.pos.X(), Ex, pmlabel);
plotter->Fill2D(rx + "_Ex_vs_Y" + ejtag + sfx, 800, -200, 200, 800, -10, 10, sievent.pos.Y(), Ex, pmlabel);
for (const auto &pcevent : PC_Events)
{
@ -4138,8 +4086,7 @@ static void reaction_ax_core(HistPlotter *plotter, const std::vector<Event> &Si_
TVector3 r_rhoMin_fix = beamVertex(sievent.pos, x2f - sievent.pos);
double vertex_z = r_rhoMin_fix.Z();
const bool axisSafe = (topo1 == "a1c2fix") || (topo1 == "a2c0") || (topo2 == "a1c1_inband");
fillBeamProfile(plotter, r_rhoMin_fix, sievent.pos, x2f - sievent.pos,
"reaction_" + rx + "_" + det, axisSafe);
// fillBeamProfile(plotter, r_rhoMin_fix, sievent.pos, x2f - sievent.pos, "reaction_" + rx + "_" + det, axisSafe);
if (beamPerp(r_rhoMin_fix) > perp_cut || vertex_z < z_entrance || vertex_z > 30.0)
return;
@ -4198,6 +4145,7 @@ static void reaction_ax_core(HistPlotter *plotter, const std::vector<Event> &Si_
std::string t = topo.empty() ? "" : ("_" + topo);
plotter->Fill1D(rx + "_Ex_from" + ejtag + t + sfx, 600, -10, 20, Ex, pmlabel);
plotter->Fill2D(rx + "_VertexReconZ_vs_Ef" + ejtag + t + sfx, 800, -400, 400, 800, 0, ef_max, vertex_z, Efix, pmlabel);
plotter->Fill2D(rx + "_VertexReconZ_vs_E" + ejtag + sfx, 800, -400, 400, 800, 0, ef_max, vertex_z, sievent.Energy1, pmlabel);
plotter->Fill2D(rx + "_VertexReconZ_vs_Ex" + ejtag + t + sfx, 800, -400, 400, 600, -10, 20, vertex_z, Ex, pmlabel);
plotter->Fill2D(rx + "_Ex_vs_theta" + ejtag + t + sfx, 720, 0, 180, 600, -10, 20, theta * 180 / M_PI, Ex, pmlabel);
@ -4241,6 +4189,8 @@ static void reaction_ax_core(HistPlotter *plotter, const std::vector<Event> &Si_
plotter->Fill2D(rx + "_Ef_vs_theta" + ejtag + sfx, 100, 0, 180, 800, 0, ef_max, theta * 180 / M_PI, Efix, pmlabel);
plotter->Fill2D(rx + "_Ex_vs_theta" + ejtag + sfx, 720, 0, 180, 800, -20, 20, theta * 180 / M_PI, Ex, pmlabel);
plotter->Fill2D(rx + "_Ex_vs_phi" + ejtag + sfx, 45, -180, 180, 600, -10, 20, phi * 180 / M_PI, Ex, pmlabel);
plotter->Fill2D(rx + "_Ex_vs_X" + ejtag + sfx, 100, -100, 120, 800, -6, 15, sievent.pos.X(), Ex, pmlabel);
plotter->Fill2D(rx + "_Ex_vs_Y" + ejtag + sfx, 100, -100, 120, 800, -6, 15, sievent.pos.Y(), Ex, pmlabel);
for (const auto &pcevent : PC_Events)
{