use named constexpr for minimum guard

IgorPtak · IgorPtak · commit 0d484a192538 · 2026-05-26T00:02:54.000+02:00
diff --git a/PWGCF/Femto/Core/pairHistManager.h b/PWGCF/Femto/Core/pairHistManager.h
@@ -968,7 +968,8 @@ class PairHistManager
     const double tPt = std::sqrt(tPx * tPx + tPy * tPy);
     const double tMt = std::sqrt(tE * tE - tPz * tPz);
 
-    if (tPt < 1e-9 || tMt < 1e-9) {
+    static constexpr double kMinTransverseMomentum = 1e-9;
+    if (tPt < kMinTransverseMomentum || tMt < kMinTransverseMomentum) {
       mQout = mQside = mQlong = 0.f;
       return;
     }

Original file line number	Diff line number	Diff line change
`@@ -968,7 +968,8 @@ class PairHistManager`
`968`	`968`	`const double tPt = std::sqrt(tPx * tPx + tPy * tPy);`
`969`	`969`	`const double tMt = std::sqrt(tE * tE - tPz * tPz);`
`970`	`970`
`971`		`- if (tPt < 1e-9 \|\| tMt < 1e-9) {`
	`971`	`+ static constexpr double kMinTransverseMomentum = 1e-9;`
	`972`	`+ if (tPt < kMinTransverseMomentum \|\| tMt < kMinTransverseMomentum) {`
`972`	`973`	`mQout = mQside = mQlong = 0.f;`
`973`	`974`	`return;`
`974`	`975`	`}`