Электронный каталог

Статья

Aboona, B.E.
Observation of Directed Flow of Hypernuclei *3&sub(*L)H and *4&sub(*L)H in *%s&sub(NN)=3 GeV Au+Au Collisions at RHIC / B.E.Aboona, G.Agakishiev, A.Aitbaev, A.Aparin, G.S.Averichev, T.G.Dedovich, A.Kechechyan, A.A.Korobitsin, R.Lednicky, V.B.Luong, A.Mudrokh, Y.Panebratsev, O.V.Rogachevsky, E.Shahaliev, M.V.Tokarev, S.Vokal, [a.o.] // Physical Review Letters [Electronic resource]. – 2023. – Vol.130, No.21. – P.212301. – URL: https://doi.org/10.1103/PhysRevLett.130.212301. – Bibliogr.:53.

We report here the first observation of directed flow (v1) of the hypernuclei 3ΛH and 4ΛH in mid-central Au+Au collisions at √sNN=3  GeV at RHIC. These data are taken as part of the beam energy scan program carried out by the STAR experiment. From 165×106 events in 5%–40% centrality, about 8400 3ΛH and 5200 4ΛH candidates are reconstructed through two- and three-body decay channels. We observe that these hypernuclei exhibit significant directed flow. Comparing to that of light nuclei, it is found that the midrapidity v1 slopes of 3ΛH and 4ΛH follow baryon number scaling, implying that the coalescence is the dominant mechanism for these hypernuclei production in the 3 GeV Au+Au collisions.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 343 е2 - Взаимодействие релятивистских ядер с ядрами
Бюллетени = 51/023