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Handbook of LHC Higgs cross sections: 4. Deciphering the nature of the Higgs sector
This Report summarizes the results of the activities of the LHC Higgs Cross Section Working Group in the period 2014-2016. The main goal of the working group was to present the state-of-the-art of
The flavor of the composite pseudo-goldstone Higgs
We study the flavor structure of 5D warped models that provide a dual description of a composite pseudo-Goldstone Higgs. We first carefully re-examine the flavor constraints on the mass scale of new
FCC-ee: The Lepton Collider
Abstract In response to the 2013 Update of the European Strategy for Particle Physics, the Future Circular Collider (FCC) study was launched, as an international collaboration hosted by CERN. This
Model-independent precision constraints on dimension-6 operators
A bstractWe discuss electroweak precision constraints on dimension-6 operators in the effective theory beyond the standard model. We identify the combinations of these operators that are constrained
Hidden Higgs decaying to lepton jets
The Higgs and some of the Standard Model superpartners may have been copiously produced at LEP and the Tevatron without being detected. We study a novel scenario of this type in which the Higgs
A second Higgs from the Higgs portal
A bstractIn the Higgs portal framework, the Higgs field generally mixes with the Standard Model (SM) singlet leading to the existence of two states, one of which is identified with the 125 GeV scalar
Higgs Basis: Proposal for an EFT basis choice for LHC HXSWG
We review the effective field theory where the Standard Model is extended by higher-dimensional operators. Various existing operator sets (bases) spanning the space of dimension-6 operators are
FCC Physics Opportunities
We review the physics opportunities of the Future Circular Collider, covering its e+e-, pp, ep and heavy ion programmes. We describe the measurement capabilities of each FCC component, addressing the
Asymmetric dark matter from leptogenesis
We present a new realization of asymmetric dark matter in which the dark matter and lepton asymmetries are generated simultaneously through two-sector leptogenesis. The right-handed neutrinos couple