Fix bug in Data Model for FemtoDream (#10095)

Co-authored-by: Laura Serksnyte <laura.serksnyte@cern.ch>

Author: lauraser

PWGCF/DataModel/FemtoDerived.h

@@ -140,11 +140,11 @@ DECLARE_SOA_DYNAMIC_COLUMN(Theta, theta, //! Compute the theta of the track
                            });
 DECLARE_SOA_DYNAMIC_COLUMN(Px, px, //! Compute the momentum in x in GeV/c
                            [](float pt, float phi) -> float {
-                             return pt * std::sin(phi);
+                             return pt * std::cos(phi);
                            });
 DECLARE_SOA_DYNAMIC_COLUMN(Py, py, //! Compute the momentum in y in GeV/c
                            [](float pt, float phi) -> float {
-                             return pt * std::cos(phi);
+                             return pt * std::sin(phi);
                            });
 DECLARE_SOA_DYNAMIC_COLUMN(Pz, pz, //! Compute the momentum in z in GeV/c
                            [](float pt, float eta) -> float {