On some properties of deuteron and antideuteron production in high energy lead–lead collisions at 158A GeV

We would attempt here to understand some properties of the transverse momentum (pT) and rapidity (y) spectra on production of deuteron (d) and antideuteron ([Formula: see text]) in lead–lead ( Pb + Pb ) collisions at 158A GeV recently reported by NA49 Collaboration. Starting from some basic properties of nucleon–nucleon (p + p) reactions for production of secondary proton–antiprotons the cases of production of the composite set of particles, like d and [Formula: see text], would be analyzed. Some ratio-behaviors would also be dealt within the light of the same approaches. It is found that the combination of the models put into use here capture modestly well the trends of the data on some important observables. Some limitations of the approach would also be pointed out in the end.