Skip to content

Tentative improvement of 3-body decay cov. matrix creation #15284

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
shahor02 wants to merge 1 commit into
base: dev
Choose a base branch
from
+4 −5
Open

Tentative improvement of 3-body decay cov. matrix creation #15284

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 4 additions & 5 deletions DataFormats/Reconstruction/src/Decay3Body.cxx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -16,15 +16,14 @@ using namespace o2::dataformats;
Decay3Body::Decay3Body(const std::array<float, 3>& xyz, const std::array<float, 3>& pxyz, const std::array<float, 6>& covxyz, const Track& tr0, const Track& tr1, const Track& tr2, o2::track::PID pid)
: mProngs{tr0, tr1, tr2}
{
std::array<float, 21> cov{}, cov1{}, cov2{};
tr0.getCovXYZPxPyPzGlo(cov);
std::array<float, 21> cov{}, cov0{}, cov1{}, cov2{};
tr0.getCovXYZPxPyPzGlo(cov0);
tr1.getCovXYZPxPyPzGlo(cov1);
tr2.getCovXYZPxPyPzGlo(cov2);
for (int i = 0; i < 21; i++) {
cov[i] += cov1[i] + cov2[i];
}
constexpr int MomInd[6] = {9, 13, 14, 18, 19, 20}; // cov matrix elements for momentum component
for (int i = 0; i < 6; i++) {
cov[i] = covxyz[i];
cov[MomInd[i]] = cov0[MomInd[i]] + cov1[MomInd[i]] + cov2[MomInd[i]];
}
this->set(xyz, pxyz, cov, tr0.getCharge() + tr1.getCharge() + tr2.getCharge(), true, pid);
}
Expand Down