A long-standing challenge in lattice QCD is the direct computation of key measures of hadron structure, including parton distribution functions, quark distribution amplitudes, and three-dimensional measures such as the transverse-momentum-dependent distributions, and generalized parton dis- tributions. Recently, new approaches have been proposed that enable their direct computation, and these are characterized by a requirement that the hadron of interest be increasingly relativis- tic. This Class A Continuation proposal aims to capitalize on recent developments, and our previous USQCD allocation, to compute the structure functions of the pion and nucleon using the pseudo-PDF and current-current matrix element formulation using the distillation framework, and to extend the calculation to that of the gluon contribution to hadron structure, and to embark on calculations of three-dimensional imaging through the calculation of GPDs in the pseudo-PDF approach. This project is relevant to the hadron structure experimental programs at JLab, and at RHIC-spin. With the recent CD0 and site selection of the EIC, the extension to the gluon distri- butions is particularly timely. We request an allocation of 63.6 KNL-core-hours, 0.88M GeForge GPU-Hours, 6.5M SKX-core-hours, together with an addition 100 TByte tape storage, and 60 Tbyte of disk storage. So…. …Use Operator-Product-Expansion to formulate in terms of Mellin Moments with respect to Bjorken x.
{"title":"Structure of the Pion from First Principles Calculation in Lattice QCD","authors":"D. Richards","doi":"10.2172/1974794","DOIUrl":"https://doi.org/10.2172/1974794","url":null,"abstract":"A long-standing challenge in lattice QCD is the direct computation of key measures of hadron structure, including parton distribution functions, quark distribution amplitudes, and three-dimensional measures such as the transverse-momentum-dependent distributions, and generalized parton dis- tributions. Recently, new approaches have been proposed that enable their direct computation, and these are characterized by a requirement that the hadron of interest be increasingly relativis- tic. This Class A Continuation proposal aims to capitalize on recent developments, and our previous USQCD allocation, to compute the structure functions of the pion and nucleon using the pseudo-PDF and current-current matrix element formulation using the distillation framework, and to extend the calculation to that of the gluon contribution to hadron structure, and to embark on calculations of three-dimensional imaging through the calculation of GPDs in the pseudo-PDF approach. This project is relevant to the hadron structure experimental programs at JLab, and at RHIC-spin. With the recent CD0 and site selection of the EIC, the extension to the gluon distri- butions is particularly timely. We request an allocation of 63.6 KNL-core-hours, 0.88M GeForge GPU-Hours, 6.5M SKX-core-hours, together with an addition 100 TByte tape storage, and 60 Tbyte of disk storage. So…. …Use Operator-Product-Expansion to formulate in terms of Mellin Moments with respect to Bjorken x.","PeriodicalId":309809,"journal":{"name":"Perceiving the Emergence of Hadron mass through AMBER@CERN, CERN, Geneva, Switzerland, March 30, 2020","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122611577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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