Measurement of neutral strange particle production in the underlying event in proton-proton collisions at √s=7TeV
| dc.citation.firstpage | 52001 | en_US |
| dc.citation.journalTitle | Physical Review D | en_US |
| dc.citation.volumeNumber | 88 | en_US |
| dc.contributor.author | Adair, A. | en_US |
| dc.contributor.author | Akgun, B. | en_US |
| dc.contributor.author | Ecklund, K.M. | en_US |
| dc.contributor.author | Geurts, F.J.M. | en_US |
| dc.contributor.author | Li, W. | en_US |
| dc.contributor.author | Padley, B.P. | en_US |
| dc.contributor.author | Redjimi, R. | en_US |
| dc.contributor.author | Roberts, J. | en_US |
| dc.contributor.author | Zabel, J. | en_US |
| dc.contributor.author | CMS Collaboration | en_US |
| dc.date.accessioned | 2013-09-18T14:49:09Z | |
| dc.date.available | 2013-09-18T14:49:09Z | |
| dc.date.issued | 2013 | en_US |
| dc.description.abstract | Measurements are presented of the production of primary K0S and particles in proton-proton collisions at ffisffiffi p ¼ 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 K0S and particles measured at pseudorapidities j j < 2 rise with increasing charged-particle jet pT 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 K0S mesons and by about 50% for 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 pT and similar trends for mesons and baryons indicate that the multiparton-interaction dynamics is decoupled from parton hadronization, which occurs at a later stage. | en_US |
| dc.embargo.terms | none | en_US |
| dc.identifier.citation | Adair, A., Akgun, B., Ecklund, K.M., et al.. "Measurement of neutral strange particle production in the underlying event in proton-proton collisions at √s=7TeV." <i>Physical Review D,</i> 88, (2013) American Physical Society: 52001. http://dx.doi.org/10.1103/PhysRevD.88.052001. | |
| dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevD.88.052001 | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/72080 | |
| dc.language.iso | eng | en_US |
| dc.publisher | American Physical Society | |
| dc.pubplace | American Physical Society | en_US |
| dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | |
| dc.title | Measurement of neutral strange particle production in the underlying event in proton-proton collisions at √s=7TeV | en_US |
| dc.type | Journal article | en_US |
| dc.type.dcmi | Text | en_US |
| dc.type.publication | publisher version | en_US |