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Phys. Rev. D 70, 015002 (2004) [13 pages]

Minimal supersymmetric fat Higgs model

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Roni Harnik1,2,*, Graham D. Kribs3,†, Daniel T. Larson1,2,‡, and Hitoshi Murayama3,§
1Theoretical Physics Group, Ernest Orlando Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA
2Department of Physics, University of California, Berkeley, California 94720, USA
3School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540, USA

Received 11 December 2003; published 23 July 2004

We present a calculable supersymmetric theory of a composite “fat” Higgs boson. Electroweak symmetry is broken dynamically through a new gauge interaction that becomes strong at an intermediate scale. The Higgs boson mass can easily be 200–450 GeV along with the superpartner masses, solving the supersymmetric little hierarchy problem. We explicitly verify that the model is consistent with precision electroweak data without fine-tuning. Gauge coupling unification can be maintained despite the inherently strong dynamics involved in electroweak symmetry breaking. Supersymmetrizing the standard model therefore does not imply a light Higgs boson mass, contrary to the lore in the literature. The Higgs sector of the minimal fat Higgs model has a mass spectrum that is distinctly different from that of the minimal supersymmetric standard model.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.70.015002
DOI:
10.1103/PhysRevD.70.015002
PACS:
12.60.Jv

*Electronic address: roni@socrates.berkeley.edu

Electronic address: kribs@ias.edu

Electronic address: dtlarson@socrates.berkeley.edu

§On leave of absence from Department of Physics, University of California, Berkeley, CA 94720. Electronic address: murayama@ias.edu