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<font size="4" style="color: rgb(0, 0, 0); text-align: start">Dear all,</font></div>
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<font size="4" style="color: rgb(0, 0, 0); text-align: start">this is a reminder on tomorrow's Raza and Tianbo farewell meeting (12:30pm) and theory seminar (1:00pm).</font></div>
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<font size="4" style="color: rgb(0, 0, 0); text-align: start">Best regards,</font></div>
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<font size="4" style="color: rgb(0, 0, 0); text-align: start">Astrid, Christos, Filippo, Miguel</font></div>
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<font size="4" style="color: rgb(0, 0, 0); text-align: start"><font size="4" style="background-color: rgb(255, 255, 255)">Bluejeans connection: </font><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__bluejeans.com_801786278&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=AIMSQQ81YDyrZuJNGks2qw&m=aT_3J5jjiFmHtFXffqbfPqEY_A73NEWw2ebyFyL_eCA&s=YNm3qgT5e8sJgKfZ9vFA_w--imuXwmeAjg0C4AslLwg&e=" target="_blank" rel="noreferrer" style="color: rgb(66, 133, 244); font-size: 12.8px; background-color: rgb(255, 255, 255)"><font size="4">https://bluejeans.<wbr>com/801786278</font></a><br style="font-size: 12.8px; background-color: rgb(255, 255, 255)">
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<font size="4" style="color: rgb(0, 0, 0); text-align: start">Theory <span>seminar information:</span></font></div>
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<font size="4" style="color: rgb(0, 0, 0); text-align: start">Date and time: Monday September 14, 1:00pm<br>
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<div style="color: rgb(0, 0, 0); font-size: 12.8px; text-align: start"><font size="4">Speaker: Glòria Montaña (University of Barcelona)</font></div>
<div style="color: rgb(0, 0, 0); font-size: 12.8px; text-align: start"><font size="4">Title: "Thermal modification of open-charm mesons from an effective hadronic theory".<br>
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Abstract: The</font><span style="font-size: large;"> high-temperature and vanishing baryon density regime </span><span style="font-size: large;">of the QCD phase diagram, where the quark-gluon plasma (QGP) is expected to be produced, is explored experimentally
with heavy-ion collisions at RHIC and LHC. Due to the large mass and relaxation time of the c quark, charmed </span><span style="font-size: large;">mesons are a powerful probe of the QGP and a proper theoretical understanding of their propagation </span><span style="font-size: large;">in
a hot medium is required. While lattice QCD is becoming an increasingly important tool in this </span><span style="font-size: large;">regime, we employ a complementary theoretical approach that allows one to reach the QGP transition </span><span style="font-size: large;">from
the hadron phase. In particular, we study the modification of open-charm mesons in a hot</span><font size="4"> mesonic me</font><span style="font-size: large;">dium below Tc within an effective field theory based on chiral and heavy-quark spin-flavor </span><span style="font-size: large;">symmetries
within the imaginary-time formalism. The in-medium unitarized amplitudes of the </span><span style="font-size: large;">scattering of the heavy mesons with the pseudoscalar light mesons and the ground-state self-energies </span><span style="font-size: large;">are
calculated self-consistently. We show that the D(∗) and Ds</span><span style="font-size: large;">(∗)</span><span style="font-size: large;"> mesons acquire a substantial width </span><span style="font-size: large;">and their masses drop with increasing temperatures.
This also implies the thermal modification of </span><span style="font-size: large;">the excit</span><font size="4">ed mesonic </font><span style="font-size: large;">states generated dynamically in our heavy-light molecular model, namely the </span><span style="font-size: large;">nonstrange
D</span><span style="font-size: large;">0*</span><span style="font-size: large;">(2300) and D</span><span style="font-size: large;">1*</span><span style="font-size: large;">(2430) mesons, as well as the D</span><span style="font-size: large;">s0*</span><span style="font-size: large;">(2317)
and D</span><span style="font-size: large;">s1*</span><span style="font-size: large;">(2460) resonances. From </span><span style="font-size: large;">the thermal ground-state spectral functions we have computed for the first time open-charm Euclidean </span><span style="font-size: large;">cor</span><font size="4">relators
that ca</font><span style="font-size: large;">n be compared with those obtained with lattice QCD. For temperatures well </span><span style="font-size: large;">below Tc we obtain a similar behavior to that found in the lattice, upon the inclusion of the full-energy </span><span style="font-size: large;">dependent
spectral functions in the calculation of the Euclidean correlators.</span></div>
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