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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> Thursday, April 2, 2020 8:48 PM<br>
<b>To:</b> physics2017@physics.wm.edu <physics2017@physics.wm.edu>; undergrads2017@physics.wm.edu <undergrads2017@physics.wm.edu><br>
<b>Subject:</b> [EXTERNAL] Please Save the Date: Final Oral Examination for the Ph.D. Degree- Marco Antonio Merchand Medina - Wednesday, 15 April 2020, 12:30 p.m.
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<div dir="ltr" style="text-align:left"><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)"><b>Physics Dissertation Defense</b></span></div>
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<span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)">Marco Antonio Merchand Medina</span><br>
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<span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)">Wednesday, April 15, 2020</span>
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<p style="margin-top: 0px; margin-bottom: 0px;margin:0in 0in 0.0001pt"><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)">12:30 P.M.</span></p>
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<span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)">You are invited to join the scheduled Zoom meeting hosted by Professor Marc Sher at </span><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__cwm.zoom.us_j_7116417933&d=DwMF-g&c=CJqEzB1piLOyyvZjb8YUQw&r=NXc6ETf15Ad2OT-P0W4YLg&m=u2O3QXc8ijsNqzf1gnUgMhnrB5-sOvnWCGWi4uQcFbI&s=RSBBjZJS1uYSPNbFEj2d7PtbRNlYpkMvrNDv9Ldwiew&e="><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(6,64,12)">https://cwm.zoom.us/j/7116417933</span></a><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(6,64,12)">
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</span><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(6,64,12)"><b>Meeting ID: 711 641 7933</b></span></p>
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<p style="margin-top: 0px; margin-bottom: 0px;margin:0in 0in 0.0001pt"><span style="font-size:12pt; font-family:"Times New Roman",Times,serif; color:rgb(0,0,0)"><b>Title of Talk:</b></span><span style="font-size:12pt; font-family:"Times New Roman",Times,serif; color:rgb(0,0,0)">
</span><span style="font-size:12pt; font-family:"Times New Roman",Times,serif; color:rgb(0,0,0)"> </span><i><span style="font-size:14pt; font-family:"Times New Roman",Times,serif; color:rgb(0,0,0)">“</span><span style="font-size:14pt; font-family:"Times New Roman",Times,serif; color:rgb(0,0,0)">Study
of Scalar Extensions for Physics Beyond the Standard Model</span><span style="font-size:14pt; font-family:"Times New Roman",Times,serif; color:rgb(0,0,0)">”</span></i></p>
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<b style="font-size:11pt; color:inherit; font-style:inherit; font-variant-ligatures:inherit; font-variant-caps:inherit"><span style="font-size:14.0pt; font-family:"Times New Roman",serif; color:black"></span></b></p>
<p style="margin-top: 0px; margin-bottom: 0px;margin:0in 0in 0.0001pt"><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)"><b>Abstract:</b></span><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)">
</span><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)">In this thesis we investigate the phenomenology of beyond the Standard Model scenarios with extra scalar fields. A review and motivation of extended electroweak
symmetry breaking is presented. Then we address observational evidence of new physics such as possible lepton flavor violating processes and the relic abundance of dark matter by implementing models with three Higgs doublets. The complementarity between theoretical
restrictions and experimental bounds on some of the predicted signals is leveraged to sharpen the allowed parameter space. After that we study embeddings of two-Higgs doublets into the Randall-Sundrum model with emphasis on the scalar fluctuations of the metric
tensor and the stabilization mechanism: i) the viability of Higgs-radion unification is reappraised as well as some amendments to it,</span><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)">
</span><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)">ii) additionally, kinetic mixing between radion and two Higgs doublets is explored. Theoretical predictions are tested against the most current experimental data
and new avenues of discovery are highlighted. We devote the last part of this thesis to study how the axion solution to the strong CP problem can be unified with the dynamical flavor symmetry explanation for the huge hierarchies observed on the fermions.</span></p>
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<p style="margin-top: 0px; margin-bottom: 0px;margin:0in 0in 0.0001pt"><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)"><b>Bio:</b></span><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(15,92,26)"><b>
</b></span><span style="font-family:"Times New Roman",Times,serif; font-size:12pt; color:rgb(0,0,0)">Marco is a physics student from Mexico. He earned his Bachelor degree from the University of Colima, Mexico in 2014. In the fall of the same year he started
the physics Ph.D. program at William & Mary. In 2016 he joined the High Energy physics group and started doing research under the supervision of Prof. Marc Sher. After graduation he will start a Postdoc position at the University of Warsaw in September.</span><span style="font-size:11pt; font-size:11pt"></span></p>
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<span style="font-size:10.0pt; font-family:"Times New Roman",serif">***********</span></p>
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<b><span style="font-size:12.0pt; font-family:"Times New Roman",serif">Ellie V. Wilkinson</span></b></p>
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<span style="font-size:9.0pt; font-family:"Times New Roman",serif">Administrative Coordinator</span></p>
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<span style="font-size:9.0pt; font-family:"Georgia",serif">William <span style="color:black">
& Mary-Physics<br>
Small Hall, Room 123<br>
300 Ukrop Way<br>
Williamsburg, VA 23185</span></span></p>
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<span style="font-size:9.0pt; font-family:"Times New Roman",serif; color:black">Telephone: 757-221-3503</span></p>
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<span style="font-size:9.0pt; font-family:"Times New Roman",serif; color:black">Fax: 757-221-3540</span></p>
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