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dc.contributor.authorBearden, IGeng
dc.contributor.authorBeavis, Deng
dc.contributor.authorBesliu, Ceng
dc.contributor.authorBudick, Beng
dc.contributor.authorBoggild, Heng
dc.contributor.authorChasman, Ceng
dc.contributor.authorChristensen, CHeng
dc.contributor.authorChristiansen, Peng
dc.contributor.authorCibor, Jeng
dc.contributor.authorDebbe, Reng
dc.contributor.authorEnger, Eeng
dc.contributor.authorGaardhoje, JJeng
dc.contributor.authorGerminario, Meng
dc.contributor.authorHagel, Keng
dc.contributor.authorHolm, Aeng
dc.contributor.authorHolm, Aeng
dc.contributor.authorHolme, AKeng
dc.contributor.authorIto, Heng
dc.contributor.authorJakobsen, Eeng
dc.contributor.authorJipa, Aeng
dc.contributor.authorJundt, Feng
dc.contributor.authorJordre, JIeng
dc.contributor.authorJørdre, Jens Ivareng
dc.contributor.authorJorgensen, CEeng
dc.contributor.authorKarabowicz, Reng
dc.contributor.authorKeutgen, Teng
dc.contributor.authorKim, EJeng
dc.contributor.authorKozik, Teng
dc.contributor.authorLarsen, T.M.eng
dc.contributor.authorLee, JHeng
dc.contributor.authorLee, YKeng
dc.contributor.authorLøvhøiden, Gunnareng
dc.contributor.authorMajka, Zeng
dc.contributor.authorMakeev, Aeng
dc.contributor.authorMikelsen, Meng
dc.contributor.authorMurray, MJeng
dc.contributor.authorNatowitz, Jeng
dc.contributor.authorNielsen, BSeng
dc.contributor.authorNorris, Jeng
dc.contributor.authorOlchanski, Keng
dc.contributor.authorOuerdane, Deng
dc.contributor.authorPlaneta, Reng
dc.contributor.authorRami, Feng
dc.contributor.authorRistea, Ceng
dc.contributor.authorRohrich, Deng
dc.contributor.authorRøhrich, Dietereng
dc.contributor.authorSamset, B.H.eng
dc.contributor.authorSandberg, Deng
dc.contributor.authorSanders, SJeng
dc.contributor.authorScheetz, RAeng
dc.contributor.authorStaszel, Peng
dc.contributor.authorTveter, T.S.eng
dc.contributor.authorVidebaek, Feng
dc.contributor.authorWada, Reng
dc.contributor.authorWieloch, Aeng
dc.contributor.authorYin, Zhongbaaoeng
dc.contributor.authorZgura, ISeng
dc.date.accessioned2015-04-16T09:40:41Z
dc.date.available2015-04-16T09:40:41Z
dc.date.issued2005-02eng
dc.identifier.issn0370-2693en_US
dc.identifier.urihttps://hdl.handle.net/1956/9806
dc.description.abstractWe present a measurement of π−/π+π−/π+, K−/K+K−/K+ and p¯/p from p+pp+p collisions at s=200 GeV over the rapidity range 0<y<3.40<y<3.4. For pT<2.0 GeV/cpT<2.0 GeV/c we see no significant transverse momentum dependence of the ratios. All three ratios are independent of rapidity for y≲1.5y≲1.5 and then steadily decline from y∼1.5y∼1.5 to y∼3y∼3. The π−/π+π−/π+ ratio is below unity for y>2.0y>2.0. The p¯/p ratio is very similar for p+pp+p and 20% central Au + Au collisions at all rapidities. In the fragmentation region the three ratios seem to be independent of beam energy when viewed from the rest frame of one of the protons. Theoretical models based on quark–diquark breaking mechanisms overestimate the p¯/p ratio up to y≲3y≲3. Including additional mechanisms for baryon number transport such as baryon junctions leads to a better description of the data.en_US
dc.language.isoengeng
dc.publisherElsevieren_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/eng
dc.subjectProton collisionseng
dc.subjectParticle ratioseng
dc.subjectForward rapidityeng
dc.subjectLimiting fragmentationeng
dc.subjectBaryon junctionseng
dc.titleForward and midrapidity like-particle ratios from p+p collisions at root s=200 GeVen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2015-03-31T13:44:23Zen_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2004 Elsevier B.V. Open access under CC BY license.en_US
dc.identifier.doihttps://doi.org/10.1016/j.physletb.2004.12.064
dc.identifier.cristin397026
dc.source.journalPhysics Letters B
dc.source.40607
dc.source.pagenumber42-50


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