The dependence of (980) production on the final-state charged-particle multiplicity in p–Pb collisions at TeV is reported. The production of (980) is measured with the ALICE detector via the decay channel in a midrapidity region of . Particle yield ratios of (980) to π and ⁎(892)0 are found to be decreasing with increasing charged-particle multiplicity. The magnitude of the suppression of the (980)/π and (980)/⁎(892)0 yield ratios is found to be dependent on the transverse momentum , suggesting different mechanisms responsible for the measured effects. Furthermore, the nuclear modification factor of (980) is measured in various multiplicity ranges. The shows a strong suppression of the (980) production in the region up to about 4 GeV/c. The results on the particle yield ratios and for (980) may help to understand the late hadronic phase in p–Pb collisions and the nature of the internal structure of (980) particle.

Observation of abnormal suppression of f0(980) production in p–Pb collisions at √sNN = 5.02 TeV / Acharya, S., Adamová, D., Aglieri Rinella, G., Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, S., Ahn, S.U., Ahuja, I., Akindinov, A., Al-Turany, M., Aleksandrov, D., Alessandro, B., Alfanda, H.M., Alfaro Molina, R., Ali, B., Alici, A., Alizadehvandchali, N., Alkin, A., Alme, J., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 853:(2024), pp. 1-15. [10.1016/j.physletb.2024.138665]

Observation of abnormal suppression of f0(980) production in p–Pb collisions at √sNN = 5.02 TeV

Agnello, M.;Bufalino, S.;Catalano, F.;Ciacco, M.;Ferrero, C.;Gioachin, G.;
2024

Abstract

The dependence of (980) production on the final-state charged-particle multiplicity in p–Pb collisions at TeV is reported. The production of (980) is measured with the ALICE detector via the decay channel in a midrapidity region of . Particle yield ratios of (980) to π and ⁎(892)0 are found to be decreasing with increasing charged-particle multiplicity. The magnitude of the suppression of the (980)/π and (980)/⁎(892)0 yield ratios is found to be dependent on the transverse momentum , suggesting different mechanisms responsible for the measured effects. Furthermore, the nuclear modification factor of (980) is measured in various multiplicity ranges. The shows a strong suppression of the (980) production in the region up to about 4 GeV/c. The results on the particle yield ratios and for (980) may help to understand the late hadronic phase in p–Pb collisions and the nature of the internal structure of (980) particle.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2990275