Set GPU field to 0 if L3 current <= 77A

shahor02 · shahor02 · commit 9c8c644fb9e6 · 2026-03-27T01:54:43.000+01:00
diff --git a/GPU/GPUTracking/Interface/GPUO2InterfaceUtils.cxx b/GPU/GPUTracking/Interface/GPUO2InterfaceUtils.cxx
@@ -145,6 +145,7 @@ uint32_t GPUO2InterfaceUtils::getTpcMaxTimeBinFromNHbf(uint32_t nHbf)
 
 float GPUO2InterfaceUtils::getNominalGPUBzFromCurrent(float l3curr)
 {
+  // Field for the current below 77A is treated as 0.
   float al3curr = CAMath::Abs(l3curr);
-  return (CAMath::Abs(al3curr - 12000) < CAMath::Abs(al3curr - 30000) ? (2.04487f / 12000.f) : (5.00668f / 30000.f)) * l3curr;
+  return al3curr <= 77 ? 0 : ((CAMath::Abs(al3curr - 12000) < CAMath::Abs(al3curr - 30000) ? (2.04487f / 12000.f) : (5.00668f / 30000.f)) * l3curr);
 }

Original file line number	Diff line number	Diff line change
`@@ -145,6 +145,7 @@ uint32_t GPUO2InterfaceUtils::getTpcMaxTimeBinFromNHbf(uint32_t nHbf)`
`145`	`145`
`146`	`146`	`float GPUO2InterfaceUtils::getNominalGPUBzFromCurrent(float l3curr)`
`147`	`147`	`{`
	`148`	`+ // Field for the current below 77A is treated as 0.`
`148`	`149`	`float al3curr = CAMath::Abs(l3curr);`
`149`		`- return (CAMath::Abs(al3curr - 12000) < CAMath::Abs(al3curr - 30000) ? (2.04487f / 12000.f) : (5.00668f / 30000.f)) * l3curr;`
	`150`	`+ return al3curr <= 77 ? 0 : ((CAMath::Abs(al3curr - 12000) < CAMath::Abs(al3curr - 30000) ? (2.04487f / 12000.f) : (5.00668f / 30000.f)) * l3curr);`
`150`	`151`	`}`