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SUMMARY:Parton Distribution Functions from Large Momentum Expansion of Cur
 rent-Current Correlators
DTSTART;VALUE=DATE-TIME:20261010T060000Z
DTEND;VALUE=DATE-TIME:20261010T062000Z
DTSTAMP;VALUE=DATE-TIME:20261005T061801Z
UID:indico-contribution-2825@indico.itp.ac.cn
DESCRIPTION:Speakers: 家璐 张 (Shanghai Jiao Tong University)\nThe univ
 ersality of the large momentum expansion allows computing parton distribut
 ion functions (PDFs) starting from any Euclidean correlator with appropria
 te large momentum Fourier\nComponents. Here we consider current-current co
 rrelators which have been used in short-distance\nexpansion to obtain mome
 nts of PDFs. The advantage of such correlators is that they have simple\nr
 enormalization properties and do not have linear power divergences as in q
 uasi-PDF. However\, in\nlattice calculations\, four-point functions are ne
 eded. Here we present an expansion formula with\ncurrent-current correlato
 rs up to the next-to-leading order\, and preliminary numerical calculation
 s\nwith four-point functions.\n\nhttps://indico.itp.ac.cn/event/437/contri
 butions/2825/
LOCATION:会议楼2 CXII103
URL:https://indico.itp.ac.cn/event/437/contributions/2825/
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