T. Alexopoulos et al., Cross sections for deuterium, tritium, and helium production in (p)over-barp collisions at root s=1.8 TeV - art. no. 072004, PHYS REV D, 6207(7), 2000, pp. 2004
We present the results of a search for the production of Light elements in
(p) over bar p collisions at the Fermilab Tevatron collider. Momentum, time
of flight, and dE/dx measurements are used to distinguish nuclei from elem
entary particles. A production ratio for deuterium to hydrogen is calculate
d and compared to the primordial value of the big bang model. Some evidence
for tritium is found and none for helium isotopes.