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Search for Dark Matter with ATLAS pp 251–276Cite as

Results and Interpretation

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Abstract

In this chapter, first, the Standard Model background estimation obtained in Chap. 14 is compared to the event numbers observed in data for each signal region and model-independent limits on the cross section for new physics will be derived in Sect. 15.1. In Sect. 15.2 the signal inputs to the limit calculation are described, in particular, the effect of different sources of experimental and theoretical uncertainties is discussed.

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Notes

  1. 1.

    \(Z(\nu \bar{\nu })\) and \(W(\mu \nu )\) from \(W(\mu \nu )\), \(Z(\nu \bar{\nu })\),\(W(\tau \nu )\) and \(W(e\nu )\) from \(W(e\nu )\).

  2. 2.

    The scales are defined event by event in MadGraph as the central \(m_{\text {T}}^2\) scale after \(k_{T}\)-clustering of the event, i.e. in the case of pair production it is the geometric mean of \(m^2 + p_{\text {T}}^{2}\) for each particle.

  3. 3.

    The most recent measurement of the relic density is the one from PLANCK [9], however, the slightly different value of \(\Omega h^2\) will not cause a visible change of the line in these plots [10].

  4. 4.

    For C1, therefore, the relic density line does not lie within the plot range any more, this is indicated by the green arrow.

  5. 5.

    The actual maximum will most likely be between 1 and 3 TeV and will be at different values for the different WIMP masses, but no samples for mediator masses between 1 and 3 TeV were available at the time of writing.

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  1. Fysikum, Stockholms Universitet (SU), Stockholm, Sweden

    Ruth Pöttgen

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Pöttgen, R. (2016). Results and Interpretation. In: Search for Dark Matter with ATLAS. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-41045-6_15

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