[PWGDQ] fix swapped covariance values#15792
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mcoquet642 merged 1 commit intoAliceO2Group:masterfrom Apr 22, 2026
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this fixes swapped covariances in mftMchMatcher.cxx
fwdmatchcandidates::CXYMCH, // X - Y,
fwdmatchcandidates::CPhiYMCH, // Phi - Y
fwdmatchcandidates::CPhiXMCH, // Phi - X
link
muonpropCov(1, 0), // Cov(Y, X), correct, equivalent to Cov(X, Y)
muonpropCov(2, 0), // Cov(Phi, X), should be Cov(Phi, Y) or muonpropCov(2, 1)
muonpropCov(2, 1), // Cov(Phi, Y), should be Cov(Phi, X) or muonpropCov(2, 0)
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