What question did this study set out to answer?

The research aims to understand the production and elliptic flow of the f0(980) in p–Pb collisions and seeks to explore scaling laws.

April 24, 2026

Violation of the elliptic flow scaling of

Key Points

The research aims to understand the production and elliptic flow of the f0(980) in p–Pb collisions and seeks to explore scaling laws.
Used a hadronic coalescence model to analyze production and elliptic flow of f0(980).
Employed K and K̅ phase-space distributions from the Hydro–Coal–Frag hybrid model.
Compared findings with measurements from ALICE and CMS experiments.
Results align with ALICE and CMS measurements.
Support the KK̅ molecular interpretation of f0(980).
Show a breakdown of simple number-of-constituent scaling in elliptic flow compared to deuteron flow.

Abstract

We investigate the production and elliptic flow of the f0(980) in high-multiplicity p–Pb collisions at √sNN = 5.02 TeV using a hadronic coalescence model with the K and K̅ phase-space distributions provided by the Hydro–Coal–Frag hybrid model. Our results, which agree with the ALICE and CMS measurements, support the KK̅ molecular interpretation of the f0(980) structure and show, however, a breakdown of the simple number-of-constituent (NC) scaling of its elliptic flow. The latter is in contrast to the deuteron elliptic flow, which exhibits a significantly better NC scaling when the same coalescence width parameter is used.

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