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12 papers · 2 filters
Interplay between Fermi gamma-ray lines and collider searches
Hyun Min Lee, Myeonghun Park, Veronica Sanz
We explore the interplay between lines in the gamma-ray spectrum and LHC searches involving missing energy and photons. As an example, we consider a singlet Dirac fermion dark matt…
Low-energy constants and condensates from the tau hadronic spectral functions
Diogo Boito, Maarten Golterman, Matthias Jamin +2
We use results of fits to the OPAL spectral data, obtained from non-strange hadronic τdecays, to evaluate the difference between the vector and axial current correlators, Π_{V-A}(Q…
Prima Facie Evidence against Spin-Two Higgs Impostors
John Ellis, Veronica Sanz, Tevong You
The new particle X recently discovered by the ATLAS and CMS Collaborations is widely expected to have spin zero, but this remains to be determined. The leading alternative is that…
Limits on Anomalous Couplings of the Higgs to Electroweak Gauge Bosons from LEP and LHC
Eduard Masso, Veronica Sanz
In this paper we assume the Higgs is an elementary scalar, and study how new physics could affect its couplings to electroweak gauge bosons. Adding LHC data to LEP data provides ne…
A Fast Track towards the `Higgs' Spin and Parity
John Ellis, Dae Sung Hwang, Veronica Sanz +1
The LHC experiments ATLAS and CMS have discovered a new boson that resembles the long-sought Higgs boson: it cannot have spin one, and has couplings to other particles that increas…
Electroweak Baryogenesis in R-symmetric Supersymmetry
R. Fok, Graham D. Kribs, Adam Martin +1
We demonstrate that electroweak baryogenesis can occur in a supersymmetric model with an exact R-symmetry. The minimal R-symmetric supersymmetric model contains chiral superfields…