Christopher T. Hill, Date of Birth, Place of Birth
TweetChristopher T. Hill
American physicist
Date of Birth: 19-Jun-1951
Place of Birth: Neenah, Wisconsin, United States
Profession: physicist
Nationality: United States
Zodiac Sign: Gemini 
About Christopher T. Hill
- Christopher T.
- Hill (born June 19, 1951) is an American theoretical physicist at the Fermi National Accelerator Laboratory who 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 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, and dimensional deconstruction.
- and has coauthored an extensive review of strong dynamical theories. He is also an originator of cosmological models of dark energy and dark matter based upon ultra-low mass bosons associated with neutrino masses and was first to propose that the cosmological constant is connected to the neutrino mass, as ? ~ m ? 4 {\displaystyle \Lambda \sim m_{\nu }^{4}} .
- He has also developed modern theories of the origin of ultra-high-energy nucleons and neutrinos from grand unification relics, such as cosmic strings.
- Hill has made significant contributions to the theory of heavy-light mesons, which contain a heavy quark and a light anti-quark, and are systems that display a remarkable chiral dynamics (see chiral symmetry breaking). With coauthors, he developed the theory and correctly predicted an abnormally long-lived resonance, the D s * ( 2317 ) {\displaystyle D_{s}^{*}(2317)} and numerous decay modes which have been confirmed by experiment.More recently he has focused on the idea that all fundamental mass scales may be associated with spontaneously broken scale symmetry, or (Weyl symmetry).
- The scale of gravity (Planck mass) and the inflationary phase of the ultra-early universe may be generated together as part of a unified phenomenon dubbed "inertial symmetry breaking." Hill has also considered the hypothesis that there may exist many sequential, heavy Higgs bosons (weak isodoublets), with "large" (O(1)) coupling constants to quarks and leptons.
- This may explain the puzzle of the many small parameters in the standard model. Several of these heavy Higgs states may be accessible to the LHC in processes like p p ? H b ? b b ¯ {\displaystyle pp\rightarrow H_{b}\rightarrow b{\bar {b}}} (b and anti-b quark). and "Scalar Democracy,"Hill is a "Distinguished Scientist" at Fermilab, former Head of the Theoretical Physics Department (2005 - 2012) and a Fellow of the American Physical Society.
- He has co-authored three popular books with Nobel laureate Leon Lederman about physics and cosmology, and the commissioning of the Large Hadron Collider.
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