On the validity of the effective field theory for dark matter searches at the LHC part III: analysis for the t-channel

By G. Busoni, Andrea De Simone, T. Jacques, Enrico Morgante, A. Riotto. 2013

237 citations recorded by the source corpus.

We extend our recent analysis of the limitations of the effective field theory approach to studying dark matter at the LHC, by investigating the case in which Dirac dark matter couples to standard model quarks via t-channel exchange of a heavy scalar mediator. We provide analytical results for the validity of the effective field theory description, for both √s = 8 TeV and 14 TeV. We make use of a MonteCarlo event generator to assess the validity of our analytical conclusions. We also point out the general trend that in the regions where the effective field theory is valid, the dark matter relic abundance is typically large.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/89eaadb7a1e4ace0abdebc1d849abeb03ae07b19

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In Nuclear and High Energy Physics

1. M. Dolan
2. T. Han
3. O. Buchmueller
4. C. McCabe
5. I. Mocioiu
6. I. Martinez-Soler
7. Jordi Salvado
8. I. Shoemaker

Citations in the corpus

• Beyond effective field theory for dark matter searches at the LHC (2013, background): “J H E P 0 1 ( 2 0 1 4 ) 0 2 5 Since 〈Q2〉1/2 is always greater than 500 GeV [45] (this can also be seen from the black dotted line in the left panel of figure 5), we find that the higher order terms involving mmed are suppressed for mmed 500 GeV.”
• Characterising dark matter searches at colliders and direct detection experiments: vector mediators (2014, unknown): “section for vector and axial-vector mediators are typically of the form √ Q(2)tr − 4m(2)DM(Q(2)tr + 2m(2)DM) and (Q 2 tr−4m(2)DM) respectively, where Qtr ' 700 GeV is the s-channel momentum transfer [18].”
• Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector (2017, unknown): “The results from simplified models involving s-channel Feynman diagrams such as the one shown in figure 1(a) are comparable to those previously obtained [14] by using an effective-field-theory approach [15] when the mediator mass considered is above 10 TeV [16].”
• Neutrino non-standard interactions: A status report (2019, background): “This discussion displays relevant similarities to the Dark Matter (DM) literature [145].”