Fig. 6: Elliptic anisotropy before the nonflow effect subtraction. | Nature Communications

Fig. 6: Elliptic anisotropy before the nonflow effect subtraction.

From: Elliptic anisotropy measurement of the f0(980) hadron in proton-lead collisions and evidence for its quark-antiquark composition

Fig. 6

a The f0(980) yield in the 4 < pT < 6 GeV/c range as a function of ϕ–ψ2 in high-multiplicity pPb collisions. Error bars show statistical uncertainties. The red curve is a fit to Eq. (1) with only the n = 2 term, from which the elliptic anisotropy v2 parameter is extracted. b The elliptic anisotropy v2 of the f0(980) state is shown before the nonflow effect subtraction as a function of pT within rapidity ∣y∣ ≲ 2.4 in high-multiplicity pPb collisions. The error bars show statistical uncertainties while the shaded areas represent systematic uncertainties.

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