PT Journal
AU Braaten, E
   Bruschini, R
   He, LP
   Ingles, K
   Jiang, J
TI Evolution of charm-meson ratios in an expanding hadron gas
SO Physical Review D
JI Phys. Rev. D
PY 2023
BP 076006
EP 6pp
VL 107
IS 7
DI 10.1103/PhysRevD.107.076006
LA English
AB We study the time evolution of the numbers of charm mesons after the kinetic freeze-out of the hadron gas produced by a central heavy-ion collision. The pi D* -> pi D* reaction rates have t-channel singularities that give contributions inversely proportional to the thermal width of the D. The ratio of the D0 and D+ production rates can differ significantly from those predicted using the measured D* branching fractions.
ER