TY  - JOUR
AU  - Abreu, L. M.
AU  - Navarra, F. S.
AU  - Nielsen, M.
AU  - Vieira, H. P. L.
PY  - 2023
DA  - 2023//
TI  - Multiplicity of Z(cs)(3985) in heavy ion collisions
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 114013
EP  - 9pp
VL  - 107
IS  - 11
PB  - Amer Physical Soc
AB  - Using the coalescence model we compute the multiplicity of Z(cs)(3985)(-) (treated as a compact tetraquark) at the end of the quark gluon plasma phase in heavy ion collisions. Then we study the time evolution of this state in the hot hadron gas phase. We calculate the thermal cross sections for the collisions of the Z(cs)(3985)(-) with light mesons using effective Lagrangians and form factors derived from QCD sum rules for the vertices Z(cs)(D) over bar (s)* D and Z(cs)(D) over bar D-s*. We solve the kinetic equation and find how the Z(cs)(3985)(-) multiplicity is affected by the considered reactions during the expansion of the hadronic matter. A comparison with the statistical hadronization model predictions is presented. Our results show that the tetraquark yield increases by a factor of about 2-3 from the hadronization to the kinetic freeze-out. We also make predictions for the dependence of the Z(cs)(3985)(-) yield on the centrality, the center-of-mass energy and the charged hadron multiplicity measured at midrapidity [dN(ch)/d eta(eta < 0.5)].
SN  - 2470-0010
UR  - https://arxiv.org/abs/2303.05990
UR  - https://doi.org/10.1103/PhysRevD.107.114013
DO  - 10.1103/PhysRevD.107.114013
LA  - English
N1  - WOS:001055200300003
ID  - Abreu_etal2023
ER  -