Christopher T. Hill

Christopher T. Hill
Born (1951-06-09) June 9, 1951
Neenah, Wisconsin
Nationality American
Institutions Fermilab
Alma mater M.I.T.
Caltech
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 (born June 9, 1951) is an American 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.[1]

Hill has made contributions to dynamical theories of electroweak symmetry breaking, and is an originator of the top quark infrared fixed point,[2] top quark condensates,[3] topcolor,[4][5] top-seesaw models,[6] and dimensional deconstruction.[7] 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.[8]

With David Schramm (astrophysicist), he developed transport equations describing the evolution of the spectrum of ultra-high-energy (UHE) cosmic rays[9] 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.[10][11][12]

In the 1980s he developed functional Schrödinger field theory methods for treating problems in quantum cosmology and carried out detailed calculations of local operator matrix elements at Feynman-loop level in Rindler space.[13][14]

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.

Books

References

  1. ↑ "Higgs Scalars and the Nonleptonic Weak Interactions" (1977)
  2. ↑ "Quark and lepton masses from renormalization-group fixed points," Phys. Rev. D 24, 691–703 (1981)
  3. ↑ "Minimal dynamical symmetry breaking of the standard model," Phys. Rev. D 41, 1647–1660 (1990)
  4. ↑ "Topcolor Assisted Technicolor," Phys. Lett. B345 (1995) 483-489
  5. ↑ "Topcolor: top quark condensation in a gauge extension of the standard model," Phys. Lett. B266 (1991) 419-424
  6. ↑ "Top quark seesaw theory of electroweak symmetry breaking," Phys. Rev. D59 (1999) 075003,
  7. ↑ "Gauge invariant effective Lagrangian for Kaluza-Klein modes," Phys. Rev. D64 (2001) 105005
  8. ↑ "Cosmology with ultralight pseudo Nambu-Goldstone bosons," Phys. Rev. Lett. 75 (1995) 2077-2080
  9. ↑ "The Ultrahigh-Energy Cosmic Ray Spectrum," Phys. Rev. D31 (1985) 564
  10. ↑ "Ultrahigh-Energy Cosmic Rays from Superconducting Cosmic Strings," Phys. Rev. D36 (1987) 1007
  11. ↑ "Grand unified theories," topological defects and ultrahigh-energy cosmic rays, Phys. Rev. Lett. 69 (1992) 567-570
  12. ↑ "Monopolonium," Nucl. Phys. B224 (1983) 469
  13. ↑ "One Loop Operator Matrix Elements in the Unruh Vacuum," Nucl. Phys. B277 (1986) 547
  14. ↑ "Can the Hawking Effect Thaw a Broken Symmetry?" Phys. Lett. B155 (1985) 343

External links

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