Disentangling Dimension Six Operators through Di-Higgs Boson Production

HUTP-06/A0037 LBNL-61548 MCTP-06-20 Disentangling Dimension Six Operators through Di-Higgs Boson Production Aaron Pierce 1,2 , Jesse Thaler 3,4 , Lian-Tao Wang 1 Jefferson Laboratory, Physics Department, Harvard University, Cambridge, MA 02138 Randall Laboratory, Physics Department, University of Michigan, Ann Arbor, MI 48109 Department of Physics, University of California, Berkeley, CA 94720 Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 Abstract New physics near the TeV scale can generate dimension-six op- erators that modify the production rate and branching ratios of the Higgs boson. Here, we show how Higgs boson pair production can yield complementary information on dimension-six operators involving the gluon field strength. For example, the invariant mass distribution of the Higgs boson pair can show the extent to which the masses of ex- otic TeV-scale quarks come from electroweak symmetry breaking. We discuss both the current Tevatron bounds on these operators and the most promising LHC measurement channels for two different Higgs masses: 120 GeV and 180 GeV.

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