{"title":"在J-PARC研究强子结构的独家硬过程","authors":"Wen-Chen Chang","doi":"10.7566/JPSCP.33.011107","DOIUrl":null,"url":null,"abstract":"With an appropriate hard scale, exclusive hadronic processes could provide novel information of the internal quark-gluon configurations of hadrons. The availability of 10-20 GeV secondary meson beam in the coming high-momentum beam line of Hadron Hall at J-PARC offers an unique opportunity to carry out the measurements of the exclusive hard processes. We address this interesting approach by two possibilities: (a) $\\pi^- p \\to K^0 \\Lambda(1405)$ for the constituent quark structure of $\\Lambda(1405)$, and (b) exclusive pion-induced Drell-Yan process $\\pi^- p \\to \\gamma^* n \\to l^+ l^- n$ for the generalized parton distributions (GPDs) of nucleons. Realization of such measurements at J-PARC will open up a new way of accessing the internal quark structure of exotic hadrons and also the nucleon GPDs based on a solid theoretical foundation of perturbative QCD.","PeriodicalId":8464,"journal":{"name":"arXiv: Nuclear Experiment","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Exclusive Hard Processes for Studying Hadron Structures at J-PARC\",\"authors\":\"Wen-Chen Chang\",\"doi\":\"10.7566/JPSCP.33.011107\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"With an appropriate hard scale, exclusive hadronic processes could provide novel information of the internal quark-gluon configurations of hadrons. The availability of 10-20 GeV secondary meson beam in the coming high-momentum beam line of Hadron Hall at J-PARC offers an unique opportunity to carry out the measurements of the exclusive hard processes. We address this interesting approach by two possibilities: (a) $\\\\pi^- p \\\\to K^0 \\\\Lambda(1405)$ for the constituent quark structure of $\\\\Lambda(1405)$, and (b) exclusive pion-induced Drell-Yan process $\\\\pi^- p \\\\to \\\\gamma^* n \\\\to l^+ l^- n$ for the generalized parton distributions (GPDs) of nucleons. Realization of such measurements at J-PARC will open up a new way of accessing the internal quark structure of exotic hadrons and also the nucleon GPDs based on a solid theoretical foundation of perturbative QCD.\",\"PeriodicalId\":8464,\"journal\":{\"name\":\"arXiv: Nuclear Experiment\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-12-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv: Nuclear Experiment\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.7566/JPSCP.33.011107\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv: Nuclear Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.7566/JPSCP.33.011107","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
在适当的硬尺度下,排他性强子过程可以提供强子内部夸克-胶子组态的新信息。在即将到来的J-PARC强子厅高动量束流线中,10- 20gev次级介子束的可用性为进行专有硬过程的测量提供了独特的机会。我们通过两种可能性来解决这个有趣的方法:(a) $\pi^- p \to K^0 \Lambda(1405)$对于$\Lambda(1405)$的组成夸克结构,以及(b)核子的广义部分子分布(GPDs)的排他性介子诱导的drel - yan过程$\pi^- p \to \gamma^* n \to l^+ l^- n$。这些测量在J-PARC的实现将为研究外来强子的内部夸克结构和核子的gpd开辟一条新的途径,同时也为微扰QCD奠定了坚实的理论基础。
Exclusive Hard Processes for Studying Hadron Structures at J-PARC
With an appropriate hard scale, exclusive hadronic processes could provide novel information of the internal quark-gluon configurations of hadrons. The availability of 10-20 GeV secondary meson beam in the coming high-momentum beam line of Hadron Hall at J-PARC offers an unique opportunity to carry out the measurements of the exclusive hard processes. We address this interesting approach by two possibilities: (a) $\pi^- p \to K^0 \Lambda(1405)$ for the constituent quark structure of $\Lambda(1405)$, and (b) exclusive pion-induced Drell-Yan process $\pi^- p \to \gamma^* n \to l^+ l^- n$ for the generalized parton distributions (GPDs) of nucleons. Realization of such measurements at J-PARC will open up a new way of accessing the internal quark structure of exotic hadrons and also the nucleon GPDs based on a solid theoretical foundation of perturbative QCD.