Abstract:
I discuss theoretical issues with constructing effective theories of gauged chiral symmetries, taking a quark-universal U(1)_B symmetry as an example. I will review the phenomenology of the Z-Z’-photon vertex and point out novelties regarding a non-renormalization theorem and connections to electroweak loop calculations and dimensional regularization. I will also present the collider signatures from the exotic scalar sector and the characteristic nature of non-decoupling chiral matter.
Biography: Felix Yu is a senior staff scientist at the Johannes Gutenberg University of Mainz in the Theoretical High Energy Physics group. His main research interests are collider phenomenology of the Standard Model and beyond, Higgs physics, and dark sector physics. He also worked on supersymmetric field theories, flavor physics phenomenology, and neutrino model building. Current projects include field theory studies of non-perturbative weakly coupled phenomena, phase transitions, and very-weakly coupled particles.
Before coming to Mainz, from August 2011 to September 2014, Felix was a Research Associate at Fermi National Accelerator Laboratory in the Theoretical Physics Department. He then worked as a five-year postdoc in the Mainz high energy theory group before his current position on the JGU Mainz faculty. Felix received his Ph.D. in Physics in June 2011 from the University of California, Irvine, under the supervision of Arvind Rajaraman, and he was a graduate student in the UCI High Energy Physics Theory group from 2007-2011. He graduated with a B.A. in Physics and Mathematics from Harvard University in 2006. He was a 2010 LHC Theory Initiative Graduate Fellow, and he was a 2010-2011 UCI Chancellor's Club Fund for Excellence Fellow.
Meeting ID: 589 669 750 No Password