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Dear All,<br>
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<br>
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Tomorrow<span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4" style="margin-top:0px; margin-bottom:0px">, June 21<sup class="x_ContentPasted1 ContentPasted0">st</sup> at 1pm EDT,
<span class="ContentPasted1" style="font-size: 12pt; color: black;">we will have a <span data-markjs="true" class="markjnac0ct2e ContentPasted1" data-ogac="" data-ogab="" data-ogsc="" data-ogsb="">cake</span> <span data-markjs="true" class="markj5qwjyce5 ContentPasted1" data-ogac="" data-ogab="" data-ogsc="" data-ogsb="">seminar</span>
given by the JSA/HUGS fellowship recipients: </span>Lucal Froguel (IFT-Unesp), María Guadalupe Morales Trejo (Universidad Michoacana de San Nicolás de Hidalgo) and Johan Colorado Caicedo (<i>CINVESTAV-IPN</i>). The seminars will be<span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4" style="margin-top:0px; margin-bottom:0px"><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4" style="margin-top:0px; margin-bottom:0px"><span class="ContentPasted1 ContentPasted13" style="font-size: 12pt; color: black;"><span class="ContentPasted13 ContentPasted14">
</span></span></span></span>shorter than usual, each lasting around 15min<span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4" style="margin-top:0px; margin-bottom:0px"><span class="ContentPasted1 ContentPasted13" style="font-size: 12pt; color: black;">.</span></span>
Please, join us <span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4 ContentPasted15" style="margin-top:0px; margin-bottom:0px">
<span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4" style="margin-top:0px; margin-bottom:0px"><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4" style="margin-top:0px; margin-bottom:0px"><span class="ContentPasted1 ContentPasted13" style="font-size: 12pt; color: black;"><span class="ContentPasted13 ContentPasted14 ContentPasted15">in
CEBAF Center room F224-225</span></span></span></span></span> and welcome the fellowship recipients, who will be with us at the Lab for the next 2 weeks.<br>
<br>
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<span class="ContentPasted3" style="font-size: 12pt; color: black;">Please see below for the title and abstracts.</span></p>
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<span class="ContentPasted3" style="font-size: 12pt; color: black;"> </span></p>
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<b><u><span class="ContentPasted3" style="font-size: 12pt; color: black;"><span data-markjs="true" class="markjnac0ct2e ContentPasted3" data-ogac="" data-ogab="" data-ogsc="" data-ogsb="">Cake</span> <span data-markjs="true" class="markj5qwjyce5 ContentPasted3" data-ogac="" data-ogab="" data-ogsc="" data-ogsb="">Seminar</span></span></u></b><span style="font-size: 12pt; color: black;"></span></p>
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<span class="ContentPasted3" style="font-size: 12pt; color: black;">Wednesday, June 21<sup class="ContentPasted3">st</sup> at 1:00 PM</span></p>
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<span class="ContentPasted3" style="font-size: 12pt; color: black;"> </span></p>
<p class="x_MsoNormal" style="margin-top: 0px; margin-bottom: 0px; background: white;">
<b><u><span class="ContentPasted3" style="font-size: 12pt; color: black;">Lucal Froguel</span></u></b><span class="ContentPasted3" style="font-size: 12pt; color: black;">
<span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2" style="margin-top:0px; margin-bottom:0px">
(IFT-Unesp)</span></span></p>
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<span class="ContentPasted3" style="font-size: 12pt; color: black;">Will discuss “An Application of Quantum Computing to QCD”</span></p>
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<span class="ContentPasted3" style="font-size: 12pt; color: black;"> </span></p>
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<b><u><span class="ContentPasted3" style="font-size: 12pt; color: black;">Abstract</span></u></b><span class="ContentPasted3" style="font-size: 12pt; color: black;">:</span></p>
<div class="x_MsoNormal" style="margin-top:0px; margin-bottom:0px"><span class="ContentPasted3" style="font-size: 12pt; background: white; color: black;"></span><span class="ContentPasted3 ContentPasted5" style="font-size: 12pt; color: black;">Quantum computers
hold the promise to overcome the limitation of classical computers and simulate bigger quantum systems, as suggested by Feynman. On the other hand, QCD is a non-perturbative theory which is still not fully understood, despite its importance. In this seminar,
I will speak about our efforts in simulating a quarkonium pair that interacts via an effective potential, derived from Effective Field Theory, using quantum computers. I will discuss the approximations we make, the current limitations and how we can improve
our simulations. <br>
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<span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4 ContentPasted6" style="margin-top:0px; margin-bottom:0px"></span><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4 ContentPasted7" style="margin-top:0px; margin-bottom:0px"><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4" style="margin-top:0px; margin-bottom:0px"></span></span>
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<b><u><span class="ContentPasted3" style="font-size: 12pt; color: black;"></span></u></b><span class="ContentPasted3" style="font-size: 12pt; color: black;"><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4 ContentPasted8" style="margin-top:0px; margin-bottom:0px"><b><u>María
Guadalupe Morales Trejo</u></b></span> <span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2" style="margin-top:0px; margin-bottom:0px">
(<span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4" style="margin-top:0px; margin-bottom:0px">Universidad Michoacana de San Nicolás de Hidalgo</span>)<br>
Will discuss</span><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2" style="margin-top:0px; margin-bottom:0px; font-size:18pt">
</span><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2" style="margin-top:0px; margin-bottom:0px; font-size:12pt">"</span><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2" style="margin-top:0px; margin-bottom:0px"><span class="ContentPasted10" style="left:139.014px; top:96.4798px; font-size:12pt; font-family:sans-serif">Constructing
a non-perturbative fermion-photon interaction</span></span><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2" style="margin-top:0px; margin-bottom:0px; font-size:12pt">"</span><span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2" style="margin-top:0px; margin-bottom:0px"><br>
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<b><u><span class="ContentPasted3 ContentPasted9" style="font-size: 12pt; color: black;">Abstract</span></u></b><span class="ContentPasted3 ContentPasted9" style="font-size: 12pt; color: black;">:</span></p>
<span class="x_MsoNormal" style="margin-top:0px; margin-bottom:0px"><span class="ContentPasted3" style="font-size: 12pt; background: white; color: black;"></span><span class="ContentPasted3 ContentPasted5 ContentPasted9" style="font-size: 12pt; color: black;"></span></span><span class="ContentPasted11" style="left:96px; top:135.27px; font-size:14.6667px; font-family:sans-serif"></span><span dir="ltr" style="">We</span><span dir="ltr" style="">
</span><span dir="ltr" style="">construct</span><span dir="ltr" style=""> </span>
<span dir="ltr" style="">the</span><span dir="ltr" style=""> </span><span dir="ltr" style="">non-perturbative</span><span dir="ltr" style="">
</span><span dir="ltr" style="">fermion-photon vertex invoking constraints of gauge</span><span dir="ltr" style=""> covariance. Thanks to the work of Ball and Chiu, it is known that the fermion-photon vertex is</span><span dir="ltr" style=""> the sum of two
components, longitudinal and transverse to the photon momentum. The</span><span dir="ltr" style=""> longitudinal part is determined by the well-known Ward-Takahashi identity (WTI). We employ</span><span dir="ltr" style=""> Transverse Takahashi Identities (TTI)
to construct the transverse part of the fermion-photon</span><span dir="ltr" style=""> vertex which remains unconstrained by the usual WTI. The related gap equation is studied in</span><span dir="ltr" style=""> the massless limit using the quenched approximation
to further constrain the transverse</span><span dir="ltr" style=""> vertex and guarantee the multiplicative renormalizability of the fermion propagator. This work</span><span dir="ltr" style=""> is relevant and important to implement gauge-invariance in the
study of Schwinger-Dyson</span><span dir="ltr" style=""> equations (SDEs)</span><span class="ContentPasted11" style="left:163.635px; top:309.825px; font-size:14.6667px; font-family:sans-serif"></span>.<br>
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<b><u><span class="ContentPasted3 ContentPasted12" style="font-size: 12pt; color: black;">Johan Colorado Caicedo</span></u></b><span class="ContentPasted3 ContentPasted12" style="font-size: 12pt; color: black;">
<span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted12" style="margin-top:0px; margin-bottom:0px">
(<span class="x_x_MsoNormal x_ContentPasted1 ContentPasted0 ContentPasted2 ContentPasted4" style="margin-top:0px; margin-bottom:0px"><i>CINVESTAV-IPN</i>)</span></span></span></p>
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<span class="ContentPasted3 ContentPasted12" style="font-size: 12pt; color: black;">Will discuss
</span><span class="ContentPasted3 ContentPasted12" style="font-size: 12pt; font-family: Calibri, Helvetica, sans-serif; color: black;">“</span><span class="ContentPasted3 ContentPasted12" style="font-size: 12pt; color: black;"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; font-variant-ligatures: common-ligatures; text-align: left; display: inline !important; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">Exploring
invisible particles: In a search of “Beyond Standard Model” in $\tau$ decay</span></span><span class="ContentPasted3 ContentPasted12" style="font-size: 12pt; font-family: Calibri, Helvetica, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">”</span></p>
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<span class="ContentPasted3 ContentPasted12" style="font-size: 12pt; font-family: Calibri, Helvetica, sans-serif; color: black;"> </span></p>
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<b><u><span class="ContentPasted3 ContentPasted12" style="font-size: 12pt; color: black;">Abstract</span></u></b><span class="ContentPasted3 ContentPasted12" style="font-size: 12pt; color: black;">:</span></p>
<span class="x_MsoNormal" style="margin-top:0px; margin-bottom:0px"><span class="ContentPasted3" style="font-size: 12pt; background: white; color: black;"></span><span class="ContentPasted3 ContentPasted5 ContentPasted12" style="font-size: 12pt; color: black;"></span></span><span class="ContentPasted0 ContentPasted16" style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; font-variant-ligatures: common-ligatures; text-align: left; display: inline !important; background-color: rgb(255, 255, 255);">This
presentation introduces a novel two-dimensional method designed for the investigation of semi-invisible decays, with a specific focus on the $\tau \to l \alpha$ process within the Belle II experiment, where $l$ denotes an electron or a muon, and $\alpha$ represents
an invisible boson. By utilizing comprehensive kinematic information, this method enhances the sensitivity to semi-invisible decays, with the ultimate goal of exploring physics beyond the Standard Model (BSM).</span><br class="ContentPasted0 ContentPasted16" style="font-family: Slack-Lato, Slack-Fractions, appleLogo, sans-serif; font-size: 15px; font-variant-ligatures: common-ligatures; text-align: left; color: rgb(209, 210, 211); background-color: rgb(34, 37, 41);">
<span class="ContentPasted0 ContentPasted16" style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; font-variant-ligatures: common-ligatures; text-align: left; display: inline !important; background-color: rgb(255, 255, 255);">The study, currently
in its preliminary stage, involves the initial approximation through official Monte Carlo simulation data. Remarkably, the application of this method in the Belle II experiment has resulted in significant improvements to the upper limits on the branching fraction
ratio $Br(\tau \to l \alpha)/Br(\tau \to l \nu \overline{\nu})$. This accomplishment could represent a substantial advancement in our understanding of semi-invisible decays and could establish a promising platform for future research endeavors in this exciting
field.</span><br>
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<span class="ContentPasted3" style="font-size: 12pt; color: black;"> </span></p>
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<span class="ContentPasted3" style="font-size: 12pt; color: black;">See you tomorrow!</span></p>
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<span class="ContentPasted3" style="font-size: 12pt; color: black;">Caroline, Joe & Patrick</span></p>
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