Christopher T. Hill
|Christopher T. Hill|
|Born||June 19, 1951
|Doctoral advisor||Murray Gell-Mann|
|Known for||Topcolor; Top quark condensate; Dimensional deconstruction; Theory of UHE Cosmic Rays; Soft Nambu-Goldstone Boson model of Dark Matter.|
Christopher T. Hill is a theoretical physicist at the Fermi National Accelerator Laboratory. He did undergraduate work in physics at M.I.T. (B.S., M.S., 1972), and graduate work at Caltech (Ph.D., 1977, Murray Gell-Mann). Hill's Ph.D. thesis, "Higgs Scalars and the Nonleptonic Weak Interactions" (1977) contains the first detailed discussion of the two-Higgs-doublet model.
Hill has made contributions to dynamical theories of electroweak symmetry breaking, and is an originator of the top quark infrared fixed point, top quark condensates, topcolor, top-seesaw models, and dimensional deconstruction. He is also an originator of cosmological models of dark energy and dark matter based upon ultra-low mass (Nambu-Goldstone) bosons generally associated with neutrino masses.
With David Schramm (astrophysicist), he developed transport equations describing the evolution of the spectrum of ultra-high-energy (UHE) cosmic rays and proposed modern theories of the origin of ultra-high-energy (UHE) nucleons and (UHE) neutrinos from grand unification relics, such as cosmic strings and monopole annihilation.
In the 1980s he developed functional Schroedinger field theory methods for treating problems in quantum cosmology. He carried out calculations of local operator matrix elements at Feynman-loop level in Rindler space indicating that acceleration radiation (also Hawking radiation), conflicts with general covariance.
Hill is a Fellow of the American Physical Society and formerly Head of the Theoretical Physics Department at Fermilab (2005 - 2012). He has authored three popular books with Nobel laureate Leon Lederman.
- Symmetry and the Beautiful Universe, Christopher T. Hill and Leon M. Lederman, Prometheus Books (2005)
- Quantum Physics for Poets, Christopher T. Hill and Leon M. Lederman, Prometheus Books (2010)
- Beyond the God Particle, Christopher T. Hill and Leon M. Lederman, Prometheus Books (2013)
- Hill's scientific publications are available on the INSPIRE-HEP Literature Database
- "Higgs Scalars and the Nonleptonic Weak Interactions" (1977)
- "Quark and lepton masses from renormalization-group fixed points," Phys. Rev. D 24, 691–703 (1981) 
- "Minimal dynamical symmetry breaking of the standard model," Phys. Rev. D 41, 1647–1660 (1990) 
- "Topcolor Assisted Technicolor," Phys. Lett. B345 (1995) 483-489
- "Topcolor: top quark condensation in a gauge extension of the standard model," Phys. Lett. B266 (1991) 419-424 
- "Top quark seesaw theory of electroweak symmetry breaking," Phys. Rev. D59 (1999) 075003, 
- "Gauge invariant effective Lagrangian for Kaluza-Klein modes," Phys. Rev. D64 (2001) 105005 
- "Cosmology with ultralight pseudo Nambu-Goldstone bosons," Phys. Rev. Lett. 75 (1995) 2077-2080 
- "The Ultrahigh-Energy Cosmic Ray Spectrum," Phys. Rev. D31 (1985) 564
- "Ultrahigh-Energy Cosmic Rays from Superconducting Cosmic Strings," Phys. Rev. D36 (1987) 1007 
- "Grand unified theories," topological defects and ultrahigh-energy cosmic rays, Phys. Rev. Lett. 69 (1992) 567-570 
- "Monopolonium," Nucl. Phys. B224 (1983) 469
- "One Loop Operator Matrix Elements in the Unruh Vacuum," Nucl. Phys. B277 (1986) 547 
- "Can the Hawking Effect Thaw a Broken Symmetry?" Phys. Lett. B155 (1985) 343