Scope: PWG
PWG-HF (Heavy Flavour)
Energy
7 TeV
System
p-p
Figure Group
Figure Image
Figure image (.eps)
Figure image (.pdf)
Figure Caption
Invariant-mass distributions of $\rm{D}^0 \to K^-\pi^+$ candidates (and charge conjugates) in pp collisions at $\sqrt{s}=7$ TeV for four spherocity intervals (0.00, 0.40, 0.55, 0.70, 1.00) for $2 < p_{\rm{T}} < 4$ GeV/$c$ and multiplicity interval of $20 < {\rm N}_{\rm tracklets} < 81$. The blue curve shows the total fit function (signal + background), while the grey dot-dashed curve shows the function for the background. The red dashed curve shows the fitting function for background + reflection.
Detail description
M[K,pi] invariant-mass distributions of $\rm{D}^0 \to K^-\pi^+$ candidates (and charge conjugates) in pp collisions at $\sqrt{s}=7$ TeV for four spherocity intervals (0.00, 0.40, 0.55, 0.70, 1.00) for $2 < p_{\rm{T}} < 4$ GeV/$c$ and multiplicity interval of $20 < {\rm N}_{\rm tracklets} < 81$. The data used is pass4 reconstruction (LHC10b, LHC10c, LHC10d, LHC10e) collected with the minimum bias kINT7 trigger in pp collisions during 2010. TOF and TPC PID are applied. Topological cuts are applied. The reflection is considered using MC simulation LHC15a2a (anchor run to pp 2010 pass4 data).