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Dear all, tomorrow (wednesday) we will have Keh-Fei Liu's seminar at
3:30pm<br>
<div class="moz-forward-container"> On thursday we will have another
seminar by Yi-Bo Yang.<br>
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Theory Center Seminar<br>
Thursday, April 27<br>
2:30pm<br>
CEBAF Center, Room L102<br>
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<b>Yi-Bo Yang</b><b> (MSU)</b><br>
<div class="moz-forward-container"><b>Gluon Spin and Helicity of
the Proton from Lattice QCD<br>
</b><br>
Understanding the role of gluons inside the proton is an
important task <br>
for both ongoing experiments and the future EIC. In this talk, <br>
I will present the first lattice-QCD result including that at <br>
physical pion mass for the gluon spin/helicity contribution<br>
in the proton, using a chiral fermion action. <br>
The first lattice result for the gluon total helicity S_G in <br>
the MSbar scheme 10GeV^2 will also be presented, including <br>
a discussion of the general strategy and difficulties in the
lattice calculations. <br>
This work has been highlighted as Viewpoint in PRL
(<a class="moz-txt-link-freetext" href="https://journals.aps.org/prl/issues/118/10">https://journals.aps.org/prl/issues/118/10</a>).<br>
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