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Dear all,<span style="margin: 0px">
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<div style="margin: 0px">Here is a reminder for the theory seminar<span> </span><span style="margin: 0px">next</span><span> </span><span style="margin: 0px">week</span>:<br>
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<div style="margin: 0px"><b><u>Theory seminar:</u></b><br>
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<span style="margin: 0px">Monday September 9, 1:00PM, Room F326-F327</span><br>
Ismail Zahed (Stony Brook), ``<span>Heavy baryons and exotics from holographic QCD''<br>
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<div>Abstract: </div>
<div>I will present a novel holographic formulation of heavy baryons that has manifest chiral and heavy quark symmetry.<br>
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<div>I will use it to show that heavy baryons and their exotics with explicit and hidden charm and bottom, emerge as bound states of a low-lying heavy meson multiplet and a flavor instanton in bulk. I will confirm the existence of two low-lying charmed pentaquark
states and new ones. I will also show that tetraquark states emerge as holographic molecules, by binding the same heavy meson multiplet to a sphaleron path instead. Remarkably, this description provides a realisation of a “quark-diquark ” correspondence
whereby a doubly heavy tetraquark as a boson is geometrically deformed to a heavy baryon as a fermion. This construction predicts bound tetraquark states with bottom and charm as Efimov states, a likely first manifestation of the Efimov mechanism in hadronic
spectroscopy.</div>
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<span style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: medium; margin: 0px; background-color: rgb(255, 255, 255)"><span>Bluejeans</span><span> </span>connection: </span><a href="https://bluejeans.com/610445877" target="_blank" style="color: rgb(17, 85, 204); font-family: Arial, Helvetica, sans-serif; font-size: medium; margin: 0px; background-color: rgb(255, 255, 255)"><span style="margin: 0px">https://<span><wbr>bluejeans</span>.com/610445877</span></a><span style="color: rgb(34, 34, 34); font-family: Arial, Helvetica, sans-serif; font-size: medium; margin: 0px; background-color: rgb(255, 255, 255)"> </span></div>
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<div style="margin: 0px;"><font color="#000000" face="Calibri, Arial, Helvetica, sans-serif"><span style="font-size: 12pt;">Raza, Miguel,Carlota</span></font></div>
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