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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Wilkinson, Ellie V <evwilk@wm.edu><br>
<b>Sent:</b> Wednesday, February 12, 2020 11:28 AM<br>
<b>To:</b> physics2017@physics.wm.edu <physics2017@physics.wm.edu><br>
<b>Cc:</b> undergrads2017@physics.wm.edu <undergrads2017@physics.wm.edu><br>
<b>Subject:</b> [EXTERNAL] Physics Colloquia Schedule from 2/17/20 - 2/24/20</font>
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<b><u><span style="font-size:13.0pt; font-family:"Times New Roman",serif">Physics Colloquium</span></u></b><span style="font-size:13.0pt; font-family:"Times New Roman",serif">
<b>Cristiano Fanelli</b> [Host: J. Dudek]<br>
Monday, February 17, 2020 MIT/Jlab<br>
4:00 PM <i><u>“AI opportunities at JLab and EIC”</u></i><br>
Small Hall 111<br>
<b>ABSTRACT:<br>
</b>AI is all around us and if you searched on google this abstract you maybe unintentionally used it. With no surprise, AI is also entering in the field of particle and nuclear physics, where from the AI perspective, experimental and theoretical challenges
often represent new opportunities.<br>
In this talk I will give an overview of different activities at Jefferson Lab where AI can play a role to advance research. Jefferson Lab is a world-leading facility endowed with a continuous polarized beam designed to explore nuclear and hadron physics. It
is currently taking data and has a wide approved program for the next years.<br>
AI will also be used in the future large scale intensity frontier experiments like the recently approved Electron Ion Collider, that will be built at Brookhaven National Laboratory in the next ten years in partnership with JLab. The EIC R&D program will likely
be one of the first characterized by AI in the detector-design phase.</span></p>
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<span style="font-size:13.0pt; font-family:"Times New Roman",serif">For students considering a career in nuclear physics and interested in AI, this could be a timely decision...<br>
<br>
<b><u>Physics Colloquium</u></b> <b>
Alexander Austregesilo</b> [Host: E. Tracy]<br>
Wednesday, February 19, 2020 Carnegie Mellon University<br>
4:00 PM <i><u>“Understanding the Strong Interaction through Hadron Spectroscopy”<br>
</u></i>Small Hall 111<i>
</i><br>
<b>ABSTRACT:</b><br>
The strong interaction is the least understood of the four fundamental forces in nature, even though it is responsible for 99% of the mass of the visible universe as it binds the light quarks into hadrons like protons and neutrons. In recent years, advances
in the theoretical description of the strong interaction and new methods for extracting the hadron spectrum from numerical simulations have greatly revived the interest in hadron spectroscopy. In addition, new experiments started to deliver high-precision
data, often revealing unexpected signatures for states beyond the constituent quark model. As part of a global effort, the GlueX experiment at Jefferson Lab aims to study the light meson spectrum with an emphasis on the search for light hybrid mesons. Its
unique selling point is a linearly-polarized 9 GeV photon beam that impinges on a liquid-hydrogen target contained within a hermetic detector with near-complete neutral- and charged-particle coverage. The experiment completed its first phase of data taking
in 2018, and the quantity and precision of the data already exceed previous experiments for polarized photoproduction in this energy regime by orders of magnitude. A selection of early results is presented, focusing on the phenomenology of the production process
with polarized photons. The potential to make significant contributions to the field of light-meson spectroscopy is demonstrated highlighting prominent examples. With significant upgrades to the detector, the upcoming second phase of GlueX will advance the
exploration of the light meson spectrum with rare processes and final states with strange-quark content.<br>
<br>
<b><u>Physics Colloquium</u></b> <b>
Barry Sanders</b> [Host: I. Novikova]<br>
Friday, February 21, 2020 OSA University of Calgary<br>
4:00 PM <i><u>“Learning for quantum control”
<br>
</u></i>Small Hall 111<br>
<b>ABSTRACT:</b><br>
We develop a framework that connects learning with classical and quantumcontrol, and this framework yields adaptive quantum-control policies that beat the standard quantum limit, inspires new methods for improving quantum-gate design forquantum computing, and
suggests new ways to apply classical and quantum machine learning to control. <br>
<br>
<b><u>Physics Colloquium</u></b> <b>
Boris Grube</b> [Host: D. Armstrong]<br>
Monday, February 24, 2020 Technical University of Munich<br>
4:00 PM “<i><u>Searching for exotic forms of hadronic matter at the COMPASS experiment”
<br>
</u></i>Small Hall 111<br>
<b>ABSTRACT:<br>
</b>Quantum Chromodynamics (QCD) describes the interaction of quarks via the exchange of gluons. A remarkable feature of QCD is that also the gluons, i.e. the force mediators, carry the charges of the strong interaction and hence do self-interact. At low energies,
this leads to the phenomenon of confinement, e.g. the entrapment of quarks and gluons into composite particles, the hadrons.</span></p>
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<span style="font-size:13.0pt; font-family:"Times New Roman",serif">Although the QCD equations are simple to write down, they are very hard to solve in the confinement regime. A quantitative understanding of the phenomenon of confinement still poses considerable
theoretical and experimental challenges and is one of the key issues in particle physics.</span></p>
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<span style="font-size:13.0pt; font-family:"Times New Roman",serif">The study of the excitation spectrum of hadrons has provided essential clues that helped to develop QCD, but also still leaves a number of deep puzzles. In the constituent quark model, hadrons
are either combinations of three quarks, which are called baryons, or quark-antiquark states, which are called mesons. However, QCD in principle allows for more complicated hadronic states like multi-quark states (e.g. molecule-like objects), states with excited
gluonic fields (hybrids), or even purely gluonic bound states (glueballs).</span></p>
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<span style="font-size:13.0pt; font-family:"Times New Roman",serif">The hunt for these so-called exotic hadrons is a world-wide experimental effort. The COMPASS experiment at CERN has collected world-leading datasets that allow us to study the spectrum of mesons
that are composed of the three lightest quarks (up, down, and strange) with unprecedented detail and precision. I will present selected results from the analysis of these data with a focus on the search for exotic mesons.<br>
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<b> Open to the public<br>
</b><i> ***Cookies & Coffee will be served in Small Hall 122 at 3:30***</i></span></p>
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<span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#1F4E79">Cheers,</span></p>
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<span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#1F4E79">Ellie Wilkinson</span></p>
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<span style="font-size:12.0pt; font-family:"Times New Roman",serif; color:#1F4E79">William & Mary Physics<br>
Administrative Coordinator<br>
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