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In case anyone is not on the Lattice Hadron Structure Journal Club mailing list...</div>
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Chris Monahan</div>
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Department of Physics</div>
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William & Mary</div>
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757-221-2081</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> LatHadron <lathadron-bounces@lists.anl.gov> on behalf of Zhao, Yong via LatHadron <lathadron@lists.anl.gov><br>
<b>Sent:</b> 11 September 2021 17:47<br>
<b>To:</b> lathadron@lists.anl.gov <lathadron@lists.anl.gov><br>
<b>Subject:</b> [LatHadron] Lattice Hadron Structure Journal Club @ 2 PM EDT, Friday, 09/17/2021 (Unusual time)</font>
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<div class="" style="word-wrap:break-word; line-break:after-white-space">Dear everyone,
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<div class="">We will have our next Lattice Hadron Structure Journal Club at <b class="">2 PM EDT, Sep. 17, Friday</b>. This time we have invited Mr. Wei-Yang Liu from Stony Brook University to give a talk.</div>
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<div class=""><b class="">Date and time</b>: 2 PM EDT, Friday, 09/17/2021</div>
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<div class=""><b class="">Web page</b>: <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__www.phy.anl.gov_latticeqcd_&d=DwMFIw&c=CJqEzB1piLOyyvZjb8YUQw&r=phC8jtUHUVIl1OXaA25HKnc5L16EvLwhrqx4rXYGPWA&m=qJQotng86BNX20XcCAlaaTu1UGUdRHzy-zv_vvJ8pwY&s=aJEoTw8PWJbyiWcDneOqFc2mr4qALapbethkEpnKZ0s&e=" class="">https://www.phy.anl.gov/latticeqcd/</a></div>
<div class=""><b class="">Zoom link</b>: <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__argonne.zoomgov.com_j_16020994740-3Fpwd-3DbXJmZms0YUFwcE12aGV0QkFpcHFGUT09&d=DwMFIw&c=CJqEzB1piLOyyvZjb8YUQw&r=phC8jtUHUVIl1OXaA25HKnc5L16EvLwhrqx4rXYGPWA&m=qJQotng86BNX20XcCAlaaTu1UGUdRHzy-zv_vvJ8pwY&s=MkQrMgH1_v3hiregZzF_y8Y5JiBTICVKl6To1zZpL-s&e=" class="">https://argonne.zoomgov.com/j/16020994740?pwd=bXJmZms0YUFwcE12aGV0QkFpcHFGUT09</a></div>
<div class=""><b class="">Passcode</b>: lathadron</div>
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<div class=""><b class="">Speaker</b>: Wei-Yang Liu (Stony Brook University)</div>
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<div class=""><b class="">Title</b>: Chiral Perturbation for Large Momentum Effective Field Theory</div>
<div class=""><b class="">References</b>: <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__arxiv.org_abs_2011.13536&d=DwMFIw&c=CJqEzB1piLOyyvZjb8YUQw&r=phC8jtUHUVIl1OXaA25HKnc5L16EvLwhrqx4rXYGPWA&m=qJQotng86BNX20XcCAlaaTu1UGUdRHzy-zv_vvJ8pwY&s=Wk8aJI1K4bFzMrJoof5JxuJlSofQCRutPfPmF-83laM&e=" class="">https://arxiv.org/abs/2011.13536</a></div>
<div class=""><b class="">Abstract</b>: Large momentum effective field theory (LaMET) enables the extraction of parton distribution functions (PDFs) directly on a Euclidean lattice through a factorization theorem that relates the computed quasi-PDFs to PDFs.
We apply chiral perturbation theory (ChPT) to LaMET to further separate soft scales such as light quark masses and lattice size to obtain leading model independent extrapolation formulas for extrapolations to physical quark masses and infinite volume. We find
that the finite volume effect is reduced when the nucleon carries a finite momentum. For nucleon momentum greater than 1 GeV and the lattice size L and pion mass m¥ð satisfying m¥ðL¡Ã3 the finite volume effect is less than 1% and is negligible for the current
precision of lattice computations. This can be interpreted as a Lorentz contraction of the nucleon size in the z-direction which makes the lattice size effectively larger in that direction. We also find that the quark mass dependence in the infinite volume
limit computed with non-zero nucleon momentum reproduces the previous result computed at zero momentum as expected. Our approach can be generalized to other parton observables in LaMET straight forwardly.</div>
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<div class=""><b class="">Discussion Panel</b>: Christopher Monahan (The College of William & Mary).</div>
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<div class="">We encourage you to read the reference and prepare any auxiliary material that can facilitate the discussion. If possible, please also help us share this information with those who may have not been reached out in your group.</div>
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<div class="">We are looking forward to seeing you next week!</div>
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<div class="">Best regards,</div>
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<div class="">Yong and Ian</div>
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