  Pseudorapidity distributions of all primary charged particles produced in p+p
collisions at various Relativistic Heavy Ion Collider (RHIC) and Large Hadron
Collider (LHC) energies using UrQMD-3.4 and PYTHIA8.2-generated events are
estimated and compared with the existing results of UA5 and ALICE
collaborations. With both the sets of generated data, the variation of rapidity
widths with the rest masses of different mesons and baryons of p+p collisions
at various Super Proton Synchrotron (SPS) and LHC energies are presented. An
increase in the width of the rapidity distribution of lambda, similar to
heavy-ion data, could be seen in p+p collisions as well from SPS to the LHC
energies (up to {sqrt_s} =13 TeV) when the entire rapidity space is considered,
indicating its universal feature both in p+p and A+A collisions. The genesis of
the increased width of rapidity distribution of Lambda in p+p collision is
found to be in the production of light flavored quarks and diquarks from the
spectator partons of the colliding hadrons resulting {lambda}/{anti_lambda}>1
at the extreme rapidities of the studied p+p collisions. At the LHC energies
for central p+p collision, when there is no spectator partons, the rapidity
width of {lambda} is found to take the same Gaussian shape as that of lambda
and the widths of both the distributions become the same confirming no
non-trivial contribution to the rapidity width of {lambda} as seen in heavy-ion
and non-central p+p collisions.
