Stueckelberg Z ' extension with kinetic mixing and millicharged dark matter from the hidden sector
By D. Feldman, Zuowei Liu, P. Nath. 2007
226 citations recorded by the source corpus.
An analysis is given of the Stueckelberg extension of the standard model with a hidden sector gauge group U(1){sub X} where the mass growth for the extra gauge boson occurs via the Stueckelberg mechanism, and where the kinetic mixing in the U(1){sub X}xU(1){sub Y} sector is included. Such a kinetic mixing is generic in a broad class of supergravity and string models. We carry out a detailed global fit of the model with the precision CERN LEP data on and off the Z pole, with {chi}{sup 2} within 1% of the {chi}{sup 2} of the standard model fit. Further, it is shown that, in the absence of matter in the hidden sector, there is a single effective parameter that controls the deviations from the standard model predictions, and the dependence on the kinetic mixing emerges only when matter in the hidden sector is included. An analysis is also given of millicharged dark matter arising from the hidden sector, where it is shown that such dark matter from the Stueckelberg extension can satisfy WMAP-3 data while allowing for a sharp Z{sup '} resonance which can be detected at the Tevatron and at the CERN LHC via a dilepton signal generated bymore » the Drell-Yan process.« less
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/3ebc876a92ebd856ca102a3f8216c3fae2b973e9
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Citations in the corpus
- The Dark Photon (2020, background): “What happens at the quantum level and how the mixing manifests itself has been analyzed in detail in (del Aguila et al., 1995) for the unbroken gauge theory as well as the spontaneously broken case (see, also, the appendix of (Feldman et al., 2007) which we mostly follow).”
- Phenomenology of hidden valleys at hadron colliders (2007, background): “is replete with examples of such hidden sectors. These include gravity mediated SUSY breaking [1–3], gauge mediated SUSY breaking [4–6], Twin Higgs models [7], milli-charged hidden sector dark matter [8,9] or unparticle physics [10,11]. String models also generate hidden sector matter [12,13]. We co”
- Dark light, dark matter, and the misalignment mechanism (2011, methodology): “riation that allows us to generate an extremely cold light vector component of the Universe, with a pressureless equation of state. Our inspiration comes from the fact that the Stueckelberg mechanism [9,10] is the unique renormalizable eld theory in 4 dimensions that does not have a place in the sta”
- Kinetic Mixing of the Photon with Hidden U(1)s in String Phenomenology (2008, methodology): “the mixing parameter which will be only mildly improved by future measurements at the high-energy frontier by LHC and ILC [17, 18, 14 ].”