TY  - JOUR
AU  - Chatrchyan, S.
AU  - Adžić, Petar
AU  - Ekmedžić, Marko
AU  - Krpić, D.
AU  - Milošević, Jovan
AU  - Milenović, Predrag
AU  - Reković, Vladimir
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5653
AB  - Measurements are presented of the production of primary K-S(0) and Lambda particles in proton-proton collisions at root s = 7 TeV in the region transverse to the leading charged-particle jet in each event. The average multiplicity and average scalar transverse momentum sum of K-S(0) and Lambda particles measured at pseudorapidities vertical bar eta vertical bar LT 2 rise with increasing charged-particle jet p(T) in the range 1-10 GeV/c and saturate in the region 10-50 GeV/c. The rise and saturation of the strange-particle yields and transverse momentum sums in the underlying event are similar to those observed for inclusive charged particles, which confirms the impact-parameter picture of multiple parton interactions. The results are compared to recent tunes of the PYTHIA Monte Carlo event generator. The PYTHIA simulations underestimate the data by 15%-30% for K-S(0) mesons and by about 50% for Lambda baryons, a deficit similar to that observed for the inclusive strange-particle production in non-single-diffractive proton-proton collisions. The constant strange-to charged-particle activity ratios with respect to the leading jet p(T) and similar trends for mesons and baryons indicate that the multiparton-interaction dynamics is decoupled from parton hadronization, which occurs at a later stage.
T2  - Physical Review D
T1  - Measurement of neutral strange particle production in the underlying event in proton-proton collisions at root s=7 TeV
VL  - 88
IS  - 5
DO  - 10.1103/PhysRevD.88.052001
ER  - 

@article{
author = "Chatrchyan, S. and Adžić, Petar and Ekmedžić, Marko and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir",
year = "2013",
abstract = "Measurements are presented of the production of primary K-S(0) and Lambda particles in proton-proton collisions at root s = 7 TeV in the region transverse to the leading charged-particle jet in each event. The average multiplicity and average scalar transverse momentum sum of K-S(0) and Lambda particles measured at pseudorapidities vertical bar eta vertical bar LT 2 rise with increasing charged-particle jet p(T) in the range 1-10 GeV/c and saturate in the region 10-50 GeV/c. The rise and saturation of the strange-particle yields and transverse momentum sums in the underlying event are similar to those observed for inclusive charged particles, which confirms the impact-parameter picture of multiple parton interactions. The results are compared to recent tunes of the PYTHIA Monte Carlo event generator. The PYTHIA simulations underestimate the data by 15%-30% for K-S(0) mesons and by about 50% for Lambda baryons, a deficit similar to that observed for the inclusive strange-particle production in non-single-diffractive proton-proton collisions. The constant strange-to charged-particle activity ratios with respect to the leading jet p(T) and similar trends for mesons and baryons indicate that the multiparton-interaction dynamics is decoupled from parton hadronization, which occurs at a later stage.",
journal = "Physical Review D",
title = "Measurement of neutral strange particle production in the underlying event in proton-proton collisions at root s=7 TeV",
volume = "88",
number = "5",
doi = "10.1103/PhysRevD.88.052001"
}

Chatrchyan, S., Adžić, P., Ekmedžić, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2013). Measurement of neutral strange particle production in the underlying event in proton-proton collisions at root s=7 TeV. in Physical Review D, 88(5).
https://doi.org/10.1103/PhysRevD.88.052001

Chatrchyan S, Adžić P, Ekmedžić M, Krpić D, Milošević J, Milenović P, Reković V. Measurement of neutral strange particle production in the underlying event in proton-proton collisions at root s=7 TeV. in Physical Review D. 2013;88(5).
doi:10.1103/PhysRevD.88.052001 .

Chatrchyan, S., Adžić, Petar, Ekmedžić, Marko, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Measurement of neutral strange particle production in the underlying event in proton-proton collisions at root s=7 TeV" in Physical Review D, 88, no. 5 (2013),
https://doi.org/10.1103/PhysRevD.88.052001 . .