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Pseudorapidity distributions of all primary charged particles produced in p+pcollisions at various Relativistic Heavy Ion Collider (RHIC) and Large HadronCollider (LHC) energies using UrQMD-3.4 and PYTHIA8.2-generated events areestimated and compared with the existing results of UA5 and ALICEcollaborations. With both the sets of generated data, the variation of rapiditywidths of different mesons and baryons of p+p collisions at various SuperProton Synchrotron (SPS) and LHC energies with the rest masses of the studiedhadrons 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 wellfrom SPS to the LHC energies (up to sqrt{s} = 13 TeV) when the entire rapidityspace is considered, indicating its universal feature both in p+p and A+Acollisions. The genesis of the increased width of rapidity distribution of{\Lambda} in p+p collision is found to be in the preferential production oflight flavored quarks and diquarks from the spectator partons of the collidinghadrons resulting a baryon asymmetry (net baryon density greater than zero) atthe extreme rapidities of the studied p+p collisions. At the LHC energies forcentral p+p collision, when there is no spectator partons, the rapidity widthof lamda is found to take the same Gaussian shape as that of anti-lamda and thewidths of both the distributions become the same confirming no non-trivialcontribution to the rapidity width of lamda as seen in heavy-ion andnon-central p+p collisions.

Spectator partons' contribution in the rapidity width of {\Lambda} in  p+p collisions at various SPS and LHC energies: A possible new mechanism of  baryogenesis