From 86e7b42591fc6870a11fde161e59a94ca42e4822 Mon Sep 17 00:00:00 2001 From: fchinu Date: Fri, 26 Sep 2025 15:35:38 +0200 Subject: [PATCH] PWGHF: Smoothen injection function vs impact parameter --- MC/config/PWGHF/external/generator/generator_pythia8_embed_hf.C | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MC/config/PWGHF/external/generator/generator_pythia8_embed_hf.C b/MC/config/PWGHF/external/generator/generator_pythia8_embed_hf.C index 1fd07e182..423c4509e 100644 --- a/MC/config/PWGHF/external/generator/generator_pythia8_embed_hf.C +++ b/MC/config/PWGHF/external/generator/generator_pythia8_embed_hf.C @@ -111,7 +111,7 @@ public: LOG(info) << "[notifyEmbedding] ----- Collision impact parameter: " << x; /// number of events to be embedded in a background event - mNumSigEvs = std::max(1.,120.*(x<5.)+80.*(1.-x/20.)*(x>5.)*(x<11.)+240.*(1.-x/13.)*(x>11.)); + mNumSigEvs = 5 + 0.886202881*std::pow(std::max(0.0f, 17.5f - x),1.7); LOG(info) << "[notifyEmbedding] ----- generating " << mNumSigEvs << " signal events " << std::endl; };