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[MUON] fix computation of delta phi in MFT-MCH matching #15796

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Merged
shahor02 merged 1 commit into from
Sep 21, 2026
+7 −0
Merged

[MUON] fix computation of delta phi in MFT-MCH matching #15796

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7 changes: 7 additions & 0 deletions Detectors/GlobalTracking/src/MatchGlobalFwd.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@
// or submit itself to any jurisdiction.

#include "GlobalTracking/MatchGlobalFwd.h"
#include "MathUtils/Utils.h"
#include <queue>

using namespace o2::globaltracking;
Expand Down Expand Up @@ -926,6 +927,9 @@ MatchGlobalFwd::MatchGlobalFwd()
// Update Parameters
r_k_kminus1 = m_k - H_k * GlobalMuonTrackParameters; // Residuals of prediction

// Restrict the phi residual to the [-pi, pi] range
o2::math_utils::bringToPMPiGend(r_k_kminus1[2]);

auto matchChi2Track = ROOT::Math::Similarity(r_k_kminus1, invResCov);

return matchChi2Track;
Expand Down Expand Up @@ -963,6 +967,9 @@ MatchGlobalFwd::MatchGlobalFwd()
// Residuals of prediction
r_k_kminus1 = m_k - H_k * GlobalMuonTrackParameters;

// Restrict the phi residual to the [-pi, pi] range
o2::math_utils::bringToPMPiGend(r_k_kminus1[2]);

auto matchChi2Track = ROOT::Math::Similarity(r_k_kminus1, invResCov);

return matchChi2Track; };
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