In second-order scalar-tensor theories we study how the Vainshtein mechanism works in a spherically symmetric background with a matter source. In the presence of the field coupling F(f)=e-2Qf with the Ricci scalar R we generally derive the Vainshtein [...]
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We present a new fully first order strongly hyperbolic representation of the BSSN formulation of Einstein’s equations with optional constraint damping terms. We describe the characteristic fields of the system, discuss its hyperbolicity properties, [...] The eta-photon transition form factor is evaluated in a formalism based on a phenomenological description at low values of the photon virtuality, and a QCD-based description at high photon virtualities, matching at a scale Q02. The high photon [...] We propose two 3-3-1 models (with either neutral fermions or right-handed neutrinos) based on S3 flavor symmetry responsible for fermion masses and mixings. The models can be distinguished upon the new charge embedding (L) relevant to lepton number. [...] Galileon models arise in certain braneworld scenarios as modifications to General Relativity, and are also interesting as field theories in their own right. We show how the galileon model can be naturally generalized to include local gauge symmetries, [...] This paper reports a measurement of D* meson production in jets from proton-proton collisions at a center-of-mass energy of s=7\tev at the CERN Large Hadron Collider. The measurement is based on a data sample recorded with the ATLAS detector with an [...] We present a detailed examination of the color-dipole picture (CDP) of low-x deep inelastic scattering. We discriminate model-independent results, not depending on a specific parameterization of the dipole cross section, from model-dependent ones. The [...] We extend our earlier results delineating the supersymmetry (SUSY) reach of the CERN Large Hadron Collider operating at a centre-of-mass energy s=7 TeV to integrated luminosities in the range 5 – 30 fb-1. Our results are presented within the paradigm [...] We present a measurement of the inclusive jet cross section using the Run II cone algorithm and data collected by the D0 experiment in p[`p] collisions at a center-of-mass energy s=1.96 TeV, corresponding to an integrated luminosity of 0.70 fb-1. [...] We explore the model-independent constraints from cosmology on a dark-matter particle with no prominent standard model interactions that interacts and thermalizes with other particles in a hidden sector. Without specifying detailed hidden-sector [...] |
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