Bounds on Dark Matter Interactions with Electroweak Gauge Bosons Page: 1 of 45
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Bounds on Dark Matter Interactions with
Electroweak Gauge Bosons 1
R.C. Cotta, J.L. Hewett, M.-P. Le and T.G. Rizzo2
SLAC National Accelerator Laboratory,
2575 Sand Hill Rd, Menlo Park, CA 94025, USA
We investigate scenarios in which dark matter interacts with the Standard Model
primarily through electroweak gauge bosons. We employ an effective field theory frame-
work wherein the Standard Model and the dark matter particle are the only light states
in order to derive model-independent bounds. Bounds on such interactions are derived
from dark matter production by weak boson fusion at the LHC, indirect detection
searches for the products of dark matter annihilation and from the measured invisible
width of the Zo. We find that limits on the UV scale, A, reach weak scale values for
most operators and values of the dark matter mass, thus probing the most natural
scenarios in the WIMP dark matter paradigm. Our bounds suggest that light dark
matter (mx mz/2 or mx ; 100 - 200 GeV, depending on the operator) cannot
interact only with the electroweak gauge bosons of the Standard Model, but rather
requires additional operator contributions or dark sector structure to avoid overclosing
'Work supported by the Department of Energy, Contract DE-AC02-76SF00515
2e-mail: randoo, hewett, myphuong, firstname.lastname@example.org
Published in arXiv:1210.0525.
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Cotta, R. C.; Hewett, J. L.; Le, M. P. & Rizzo, T. G. Bounds on Dark Matter Interactions with Electroweak Gauge Bosons, article, October 25, 2013; United States. (https://digital.library.unt.edu/ark:/67531/metadc868402/m1/1/: accessed June 17, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.