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dc.contributor.authorBaringer, Philip S.
dc.contributor.authorBean, Alice
dc.contributor.authorBean, Gabriele
dc.contributor.authorKenny, R. P., III
dc.contributor.authorMurray, Michael J.
dc.contributor.authorNoonan, Danny
dc.contributor.authorSanders, Stephen J.
dc.contributor.authorStringer, Robert W.
dc.contributor.authorWood, Jeffrey Scott
dc.contributor.authorChatrchyan, S.
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorBergauer, T.
dc.contributor.authorDragicevic, M.
dc.contributor.authorErö, J.
dc.date.accessioned2014-11-11T14:33:35Z
dc.date.available2014-11-11T14:33:35Z
dc.date.issued2013-09-03
dc.identifier.citationS. Chatrchyan et al. (CMS Collaboration). (2013). "Measurement of neutral strange particle production in the underlying event in proton-proton collisions at s√=7  TeV." Physical Review D, 88(5):052001. http://www.dx.doi.org/10.1103/PhysRevD.88.052001.
dc.identifier.issn0556-2821
dc.identifier.urihttp://hdl.handle.net/1808/15677
dc.descriptionThis is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.052001.
dc.description.abstractMeasurements are presented of the production of primary K(0)(S) and Λ particles in proton-proton collisions at 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(0)(S) and Λ particles measured at pseudorapidities |η|<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(0)(S) mesons and by about 50% for Λ 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.
dc.publisherAmerican Physical Society
dc.titleMeasurement of neutral strange particle production in the underlying event in proton-proton collisions at s√=7  TeV
dc.typeArticle
kusw.kuauthorBaringer, Philip S.
kusw.kuauthorBean, Alice
kusw.kuauthorBenelli, Gabriele
kusw.kuauthorKenny, R. P. III
kusw.kuauthorMurray, Michael J.
kusw.kuauthorNoonan, Danny
kusw.kuauthorSanders, Stephen J.
kusw.kuauthorStringer, Robert W.
kusw.kuauthorWood, Jeffrey Scott
kusw.kudepartmentPhysics and Astronomy
kusw.oastatusfullparticipation
dc.identifier.doi10.1103/PhysRevD.88.052001
dc.identifier.orcidhttps://orcid.org/0000-0002-3932-3769
kusw.oaversionScholarly/refereed, publisher version
kusw.oapolicyThis item meets KU Open Access policy criteria.
dc.rights.accessrightsopenAccess


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