{"title":"在RHIC中d+Au碰撞产生奇异强子","authors":"Hai Jiang, Xiangzhou Cai","doi":"10.1556/APH.25.2006.2-4.20","DOIUrl":null,"url":null,"abstract":"We report the centrality dependence of transverse mass (m t ) spectra at mid-rapidity for the identified strange hadrons K S 0 , ϕ \\(\\Lambda + \\bar \\Lambda \\) and \\(\\Xi ^ - + \\bar \\Xi ^ + \\) in d+Au collisions at RHIC. The measured transverse momentum (p T ) covers 0.4<p T <6.0 GeV/c for K S 0 , o, \\(\\Lambda + \\bar \\Lambda \\) and 0.6<p T <5.0 GeV/c for \\(\\Xi ^ - + \\bar \\Xi ^ + \\). The binary collision normalized nuclear modification factors R CP of these hadrons indicate that the Cronin effect in d+Au collisions has a distinct particle-type dependence. the R CP ratios show a distinct baryons versus mesons dependence: the R CP for \\(\\Xi ^ - + \\bar \\Xi ^ + \\) follows that for \\(\\Lambda + \\bar \\Lambda \\) while the R CP for the ϕ is close to that for the K S 0 . Similar features have also been observed in Au+Au collisions. Initial parton scattering alone is not sufficient to explain this particle-type dependence. Hadronization processes are likely to be important for determining hadron properties in high-energy collisions as suggested by coalescence and recombination models.","PeriodicalId":201208,"journal":{"name":"Acta Physica Hungarica A) Heavy Ion Physics","volume":"76 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Strange hadron production in d+Au collisions at RHIC\",\"authors\":\"Hai Jiang, Xiangzhou Cai\",\"doi\":\"10.1556/APH.25.2006.2-4.20\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We report the centrality dependence of transverse mass (m t ) spectra at mid-rapidity for the identified strange hadrons K S 0 , ϕ \\\\(\\\\Lambda + \\\\bar \\\\Lambda \\\\) and \\\\(\\\\Xi ^ - + \\\\bar \\\\Xi ^ + \\\\) in d+Au collisions at RHIC. The measured transverse momentum (p T ) covers 0.4<p T <6.0 GeV/c for K S 0 , o, \\\\(\\\\Lambda + \\\\bar \\\\Lambda \\\\) and 0.6<p T <5.0 GeV/c for \\\\(\\\\Xi ^ - + \\\\bar \\\\Xi ^ + \\\\). The binary collision normalized nuclear modification factors R CP of these hadrons indicate that the Cronin effect in d+Au collisions has a distinct particle-type dependence. the R CP ratios show a distinct baryons versus mesons dependence: the R CP for \\\\(\\\\Xi ^ - + \\\\bar \\\\Xi ^ + \\\\) follows that for \\\\(\\\\Lambda + \\\\bar \\\\Lambda \\\\) while the R CP for the ϕ is close to that for the K S 0 . Similar features have also been observed in Au+Au collisions. Initial parton scattering alone is not sufficient to explain this particle-type dependence. Hadronization processes are likely to be important for determining hadron properties in high-energy collisions as suggested by coalescence and recombination models.\",\"PeriodicalId\":201208,\"journal\":{\"name\":\"Acta Physica Hungarica A) Heavy Ion Physics\",\"volume\":\"76 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Physica Hungarica A) Heavy Ion Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1556/APH.25.2006.2-4.20\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Physica Hungarica A) Heavy Ion Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1556/APH.25.2006.2-4.20","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Strange hadron production in d+Au collisions at RHIC
We report the centrality dependence of transverse mass (m t ) spectra at mid-rapidity for the identified strange hadrons K S 0 , ϕ \(\Lambda + \bar \Lambda \) and \(\Xi ^ - + \bar \Xi ^ + \) in d+Au collisions at RHIC. The measured transverse momentum (p T ) covers 0.4