LHC and dark matter signals of Z' bosons
| Autor: | Barger, Vernon, Marfatia, Danny, Peterson, Andrea |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Phys.Rev.D87:015026,2013 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.87.015026 |
| Popis: | We customize the simulation code FEWZ (Fully Exclusive W, Z Production) to study Z' production at the LHC for both \sqrt{s}=8 TeV and 14 TeV. Using the results of our simulation for several standard benchmark Z' models, we derive a semi-empirical expression for the differential cross section, that permits the determination of Z' couplings in a model-independent manner. We evaluate cross sections and other observables for large classes of models, including the common E_6, left-right and B-L models, as a function of model parameters. We also consider a hidden sector Z' that couples to standard model fermions via kinetic and mass mixing and serves as a mediator of isospin-violating interactions with dark matter. We combine the results of LHC Z' searches and dark matter direct detection experiments with global electroweak data to obtain mass-dependent constraints on the model parameters. Comment: 30 pages, 19 figures, 2 tables. Published version |
| Databáze: | arXiv |
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