Revert "[PWGCF] FemtoUniverse: Fixing the bug in phi calculation at R (#12315)"

prchakra · web-flow · commit 57da36ad2cd0 · 2025-08-09T23:46:34.000+02:00
This reverts commit febce25.
diff --git a/PWGCF/FemtoUniverse/Core/FemtoUniverseDetaDphiStar.h b/PWGCF/FemtoUniverse/Core/FemtoUniverseDetaDphiStar.h
@@ -621,7 +621,7 @@ class FemtoUniverseDetaDphiStar
     for (size_t i = 0; i < 9; i++) {
       double arg = 0.3 * charge * magfield * TmpRadiiTPC[i] * 0.01 / (2. * pt);
       if (std::abs(arg) < 1.0) {
-        tmpVec.push_back(phi0 + std::asin(arg));
+        tmpVec.push_back(phi0 - std::asin(arg));
       } else {
         tmpVec.push_back(999.0);
       }

Original file line number	Diff line number	Diff line change
`@@ -621,7 +621,7 @@ class FemtoUniverseDetaDphiStar`
`621`	`621`	`for (size_t i = 0; i < 9; i++) {`
`622`	`622`	`double arg = 0.3 * charge * magfield * TmpRadiiTPC[i] * 0.01 / (2. * pt);`
`623`	`623`	`if (std::abs(arg) < 1.0) {`
`624`		`- tmpVec.push_back(phi0 + std::asin(arg));`
	`624`	`+ tmpVec.push_back(phi0 - std::asin(arg));`
`625`	`625`	`} else {`
`626`	`626`	`tmpVec.push_back(999.0);`
`627`	`627`	`}`