Pion form-factors from lattice: toward the continuum limit
ORAL
Abstract
We will present lattice results in 2$+$1 flavor QCD on the pion formfactor in a wide range of momentum transfer using staggered sea quarks with improvedclover quarks in the valance sector. Our study uses three lattice spacings, a$=$0.076fm, 0.06fm, and 0.04fm, and two pion masses, a pion mass of about 300 MeV and the physical pion mass. This allows us to control the continuum limit as well as the quark mass effects.
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Authors
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Peter Petreczky
Brookhaven National Laboratory
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Gao Xiang
Tsinghua University and Brookhaven National Laboratory, Brookhaven National Laboratory, Brookhaven National Laboratory and Tsinghua University
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Nikhil Karthik
Jefferson Lab
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Swagato Mukherjee
Brookhaven National Laboratory
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Sergey Syritsyn
RIKEN-BNL and Stony Brook University
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Yong Zhao
Brookhaven National Laboratory