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Article
Report number arXiv:1307.0005 ; LPT-Orsay-13-49 ; CPHT-RR-054-0613 ; IFT-UAM-CSIC-13-76
Title Extra U(1), effective operators, anomalies and dark matter
Author(s) Dudas, Emilian (Ecole Polytechnique, CPHT) ; Heurtier, Lucien (Ecole Polytechnique, CPHT) ; Mambrini, Yann (Orsay, LPT) ; Zaldivar, Bryan (Madrid, IFT)
Publication 2013
Imprint 28 Jun 2013
Number of pages 35
Note Comments: 40 pages, 11 figures
In: JHEP 11 (2013) 083
DOI 10.1007/JHEP11(2013)083
Subject category Particle Physics - Phenomenology
Abstract A general analysis is performed on the dimension-six operators mixing an almost hidden Z' to the Standard Model (SM), when the Z' communicates with the SM via heavy mediators. These are fermions charged under both Z' and the SM, while all SM fermions are neutral under Z'. We classify the operators as a function of the gauge anomalies behaviour of mediators and explicitly compute the dimension-six operators coupling Z' to gluons, generated at one-loop by chiral but anomaly-free, sets of fermion mediators. We prove that only one operator contribute to the couplings between Z' charged matter and on-shell gluons. We then make a complete phenomenological analysis of the scenario where the lightest fermion charged under Z' is the dark matter candidate. Combining results from WMAP/PLANCK data, mono-jet searches at LHC, and direct/indirect dark matter detections restrict considerably the allowed parameter space.
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 Záznam vytvorený 2013-07-02, zmenený 2017-05-24


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