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The Standard Model Higgs boson may be mixed

with another scalar that does not couple singly to gauge bosons or fermions.

The electroweak quantum numbers of such an additional scalar can be determined

by measuring the quartic Higgs-Higgs-vector-vector couplings, which

contribute—along with the coveted triple Higgs coupling—to double Higgs

production in e+e− collisions. We show that simultaneous sensitivity

to the quartic Higgs-Higgs-vector-vector coupling and the triple Higgs coupling

can be obtained using measurements of the double Higgs production cross section

at two different e+e− center-of-mass energies. Kinematic

distributions of the two Higgs bosons in the final state could provide

additional discriminating power.

Collection/Series:

Event Type:

Seminar

Scientific Area(s):

Speaker(s):

Event Date:

Tuesday, March 12, 2013 - 13:00 to 14:30

Location:

Space Room

©2012 Perimeter Institute for Theoretical Physics