Maverick dark matter at colliders

By M. Beltrán, D. Hooper, E. Kolb, Zosia A. C. Krusberg, T. Tait. 2010

321 citations recorded by the source corpus.

Assuming that dark matter is a weakly interacting massive particle (WIMP) species X produced in the early Universe as a cold thermal relic, we study the collider signal of pp or $ p\bar{p} \rightarrow \bar{X}X $ + jets and its distinguishability from standard-model background processes associated with jets and missing energy. We assume that the WIMP is the sole particle related to dark matter within reach of the LHC — a “maverick” particle — and that it couples to quarks through a higher dimensional contact interaction. We simulate the WIMP final-state signal $ X\bar{X} $ + jets and dominant standard-model (SM) background processes and find that the dark-matter production process results in higher energies for the colored final state partons than do the standard-model background processes. As a consequence, the detectable signature of maverick dark matter is an excess over standard-model expectations of events consisting of large missing transverse energy, together with large leading jet transverse momentum and scalar sum of the transverse momenta of the jets. Existing Tevatron data and forthcoming LHC data can constrain (or discover!) maverick dark matter.

Subfields: Artificial Intelligence, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/a8b3ad3acf2d1d48217f9fb834cbbe9723796cb6

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Citations in the corpus

The Tevatron at the frontier of dark matter direct detection (2010, background): “iators In placing the bounds in the previous sections we have imagined that the only accessible state from the dark sector is the DM itself, all other states associated with the dark sector are heavy [32]. However, for certain operators the cutoﬀ scale, shown in Figure 1, is low enough to be probed ”
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Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector (2012, background): “In a more model-independent approach, WIMP pair production at colliders is proposed to yield detectable E T if the WIMP pair is tagged by a jet or photon from initial- or finalstate radiation (ISR/FSR) [13, 31].”
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Explaining dark matter and B decay anomalies with an Lμ − Lτ model (2016, background): “22× 10(19) GeV, xF the inverse temperature at freezeout in units of the dark matter particle mass, and g? the number of relativistic degrees of freedom at freeze-out (around 90 for freeze out temperatures of (5-80) GeV [87, 88]).”
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Higgs portal, fermionic dark matter, and a Standard Model like Higgs at 125 GeV (2012, background): “Let us mention that monojet searches for dark matter at colliders [33, 34] will apriori not constrain further this EFT model of dark matter.”
Cosmological Moduli and the Post-Inflationary Universe: A Critical Review (2015, background): “operators [68] and simplified models [69], with a mono-X observational signature, where X may denote monojet [70], mono-photon [71], mono-Z [72, 73], mono-W [74], mono-Higgs, mono-b [75], or mono-top [75].”
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