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Flow extraction using the template fit in high-multiplicity(0--0.1%) pp collisions at 13 TeV for 1$~<p_{\rm{T}}<~$2 GeV/$c$

Figure Information
Scope: PWG
PWG-CF (Flow and Correlations)
Energy
13 TeV
System
p-p
Figure Group
Flow and jet yield extraction from two-particle correlations in pp collisions at $\sqrt{s}=13$ TeV with ALICE
Figure Image
Figure image (.eps)
Fig14_FlowExt.eps
Figure image (.pdf)
Fig14_FlowExt10_02_16.pdf
Figure Caption

Flow extraction using the template fit in high-multiplicity(0--0.1%) pp collisions at 13 TeV for 1$~<p_{\rm{T}}<~$2 GeV/$c$. The template fit was obtained from 60--100% multiplicity class.

Detail description

The template fit was done with followings:

$f_{\rm{sig}}(\Delta\varphi) = G(1 + 2v_{2,2}\cos(2\Delta\varphi) + 2v_{3,3}\cos(3\Delta\varphi)) + Ff_{\rm{LM}}(\Delta\varphi)$

The method assumes that $f_{\rm{LM}}(\Delta\varphi)$ only includes non-flow contributions mainly from back-to-back jets correlations while not including any flow modulations. By subtracting major away-side non-flow contributions, flow modulations are extracted as $v_{2,2}$ and $v_{3,3}$. The scale factor, $F$, is multiplied to the $f_{\rm{LM}}(\Delta\varphi)$ to consider multiplicity dependence of away-side jet fragments. $f_{\rm{LM,min}}$ is defined as minimum yield of $f_{\rm{LM}}(\Delta\varphi)$. The reference of the method is following (arXiv:1509.04776).