Sequestering the Standard Model Vacuum Energy
نویسندگان
چکیده
منابع مشابه
Sequestering the standard model vacuum energy.
We propose a very simple reformulation of general relativity, which completely sequesters from gravity all of the vacuum energy from a matter sector, including all loop corrections and renders all contributions from phase transitions automatically small. The idea is to make the dimensional parameters in the matter sector functionals of the 4-volume element of the Universe. For them to be nonzer...
متن کاملOn the metastability of the Standard Model vacuum
If the Higgs mass mH is as low as suggested by present experimental information, the Standard Model ground state might not be absolutely stable. We present a detailed analysis of the lower bounds on mH imposed by the requirement that the electroweak vacuum be sufficiently long-lived. We perform a complete one-loop calculation of the tunnelling probability at zero temperature, and we improve it ...
متن کاملPrecise Vacuum Stability Bound in the Standard Model
In the standard model, a lower bound to the Higgs mass (for a given top quark mass) exists if one requires that the standard model vacuum be stable. This bound is calculated as precisely as possible, including the most recent values of the strong and electroweak couplings, corrected two-loop beta functions and radiative corrections to the Higgs and top quark masses. In addition to being somewha...
متن کاملHigh-energy Unitarity and the Standard Model *
High-energy unitarity is argued to select a special version of QCD as the strong interaction. Electroweak symmetry breaking has to be due to a new sextet quark sector-that will produce large cross-section effects at the LHC. The sextet sector embeds, uniquely, in a massless SU (5) theory that potentially generates the states and interactions of the Standard Model within a bound-state S-Matrix. ...
متن کاملVacuum Energy and Θ–vacuum
The highly non-trivial structure of the θ–vacuum encodes many of the fundamental properties of gauge theories. In particular, the response of the vacuum to the θ–term perturbation is sensitive to the existence of confinement, chiral symmetry breaking, etc. We analyze the dependence of the vacuum energy density on θ around two special values, θ = 0 and θ = π. The existence or not of singular beh...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2014
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.112.091304