S. Ambrosanio et B. Mele, NEUTRALINO PRODUCTION AS A SUSY DISCOVERY PROCESS AT CERN LEP-2, Physical review. D. Particles and fields, 52(7), 1995, pp. 3900-3918
A thorough study is performed on pair production and signatures of sup
ersymmetric neutralinos in the MSSM at LEP 2. Particular attention is
paid to the region of the SUSY parameter space where the associated pr
oduction of lightest and next-to-lightest neutralinos is the only visi
ble allowed supersymmetric process. In that region, the signal is crit
ically dependent on the selectron masses <m((e)over bar L,R)>. For roo
t s/2 < <m((e)over bar L,R)> less than or similar to 200-300 GeV and c
harginos above the threshold for pair production, neutralinos arising
from e(+)e(-) --> chi(1)(-0)chi(2)(-0) could be the only SUSY signal d
etectable at LEP 2.