  The present article significantly investigated projectiles lightest fragments
(proton) multiplicity distribution and probability distribution with 84Kr36
emulsion collision at around 1 A GeV. The multiplicity and normalized
multiplicity of projectiles lightest fragments (proton) is correlated with the
compound particles, shower particles, black particles, grey particles, helium
fragments particles and heavily ionizing charged particles. It is found that
projectiles lightest fragments (proton) are strongly correlated with compound
particles and shower particles rather than other particles and the average
multiplicity of projectiles lightest fragments (proton) increases with
increasing compound, shower and heavy ionizing particles. Normalized
projectiles lightest fragments (proton) are strongly correlated with compound
particles, shower particles and heavy ionizing charge particles. The
multiplicity distribution of the projectiles lightest fragments (proton)
emitted in the 84Kr36 + emulsion interaction at around 1 A GeV with different
target has well explained by KNO scaling. The mean multiplicity of projectiles
lightest fragments (proton) depends on the mass number of the projectile and
does not significantly dependent of the projectile energy. The mean
multiplicity projectiles lightest fragment (proton) increases with increasing
the target mass number.
