Электронный каталог

Статья

Acharya, S.
Observation of Abnormal Suppression of f&sub(0)(980) Production in p–Pb Collisions at *%s&sub(NN) = 5.02 TeV / S.Acharya, B.Batyunya, C.Ceballos Sanchez, R.A.Diaz, S.Grigoryan, A.Kondratyev, L.Malinina, K.Mikhaylov, P.Nomokonov, V.Pozdniakov, E.Rogochaya, A.Vodopyanov, [ALICE Collab.] // Physics Letters B [Electronic resource]. – 2024. – Vol. 853. – P. 138665. – URL: https://doi.org/10.1016/j.physletb.2024.138665. – Bibliogr.: 62.

The dependence of f&sub(0)(980) production on the final-state charged-particle multiplicity in p–Pb collisions at *%s&sub(NN) = 5.02 TeV is reported. The production of f&sub(0) (980) is measured with the ALICE detector via the f&sub(0) (980) *> *p*+*p*- decay channel in a midrapidity region of −0.5 < 𝑦 < 0. Particle yield ratios of f&sub(0)(980) to p and K&sup(∗ )(892)*0 are found to be decreasing with increasing charged-particle multiplicity. The magnitude of the suppression of the f&sub(0)(980)/*p and f&sub(0)(980)/K&sup( ∗)(892)*0 yield ratios is found to be dependent on the transverse momentum 𝑝&sub(T), suggesting different mechanisms responsible for the measured effects. Furthermore, the nuclear modification factor 𝑄&sub(pPb) of &sub(0)(980) is measured in various multiplicity ranges. The 𝑄&sub(pPb) shows a strong suppression of the f&sub(0)(980) production in the 𝑝&sub(T) region up to about 4 GeV/𝑐. The results on the particle yield ratios and 𝑄&sub(pPb) for f&sub(0)(980) may help to understand the late hadronic phase in p–Pb collisions and the nature of the internal structure of f&sub(0)(980) particle.



Спец.(статьи,препринты) = С 346 г - Множественное рождение частиц
Спец.(статьи,препринты) = С 346.6а1 - Векторные мезоны
ОИЯИ = ОИЯИ (JINR)2024