"SEESAWING" AWAY THE HEIRARCHY PROBLEM.

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We describe a model for the scalar sector where all interactions occur either at an ultra-high scale A{sub U} {approx} 10{sup 16}-10{sup 19} GeV or at an intermediate scale {Lambda}{sub I} = 10{sup 9}-10{sup 11} GeV. The interaction of physics on these two scales results in an SU(2) Higgs condensate at the electroweak (EW) scale, {Lambda}{sub EW}, through a seesaw-like Higgs mechanism, {Lambda}{sub EW} {approx} {Lambda}{sub 1}{sup 2}/{Lambda}{sub U}, while the breaking of the SM SU(2) x U(1) gauge symmetry occurs at the intermediate scale {Lambda}{sub I}. The EW scale is, therefore, not fundamental but is naturally generated in terms ... continued below

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BAR-SHALOM, S.; ATWOOD, D. & SONI, A. July 21, 2005.

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We describe a model for the scalar sector where all interactions occur either at an ultra-high scale A{sub U} {approx} 10{sup 16}-10{sup 19} GeV or at an intermediate scale {Lambda}{sub I} = 10{sup 9}-10{sup 11} GeV. The interaction of physics on these two scales results in an SU(2) Higgs condensate at the electroweak (EW) scale, {Lambda}{sub EW}, through a seesaw-like Higgs mechanism, {Lambda}{sub EW} {approx} {Lambda}{sub 1}{sup 2}/{Lambda}{sub U}, while the breaking of the SM SU(2) x U(1) gauge symmetry occurs at the intermediate scale {Lambda}{sub I}. The EW scale is, therefore, not fundamental but is naturally generated in terms of ultra-high energy phenomena and so the hierarchy problem is alleviated. We show that our ''seesaw-Higgs'' model predicts the existence of sub-eV neutrino masses which are generated through a ''two-step'' seesaw mechanism in terms of the same two ultra-high scales: m{sub {nu}} {approx} {Lambda}{sub I}{sup 4}/{Lambda}{sub U}{sup 3} {approx} {Lambda}{sub EW}{sup 2}/{Lambda}{sub U}. We also show that our seesaw Higgs model can be naturally embedded, in theories with tiny extra dimensions of size R {approx} {Lambda}{sub U}{sup -1} {approx} 10{sup -16} fm, where the seesaw induced EW scale arises from a violation of a symmetry at a distant brane if there are 7 tiny extra dimensions.

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5 pages

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  • EPS INTERNATIONAL EUROPHYSICS CONFERENCE ON HIGH ENERGY PHYSICS; LISBON, PORTUGAL; 20050721 through 20050727

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  • Report No.: BNL--75366-2006-CP
  • Grant Number: DE-AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 875880
  • Archival Resource Key: ark:/67531/metadc875185

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  • July 21, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 12, 2016, 8:21 p.m.

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BAR-SHALOM, S.; ATWOOD, D. & SONI, A. "SEESAWING" AWAY THE HEIRARCHY PROBLEM., article, July 21, 2005; [Upton, New York]. (digital.library.unt.edu/ark:/67531/metadc875185/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.