Robust collider limits on heavy-mediator Dark Matter
| Autor: | Davide Racco, Fabio Zwirner, Andrea Wulzer |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Quark
Physics EFTS Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Atlas (topology) Dark matter FOS: Physical sciences ddc:500.2 Parameter space 01 natural sciences High Energy Physics - Experiment law.invention High Energy Physics - Phenomenology High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph) Supersymmetry Phenomenology law 0103 physical sciences Hadronic Colliders 010306 general physics Collider Particle Physics - Phenomenology Majorana fermion |
| Zdroj: | Journal of High Energy Physics, Vol. 1505 (2015) pp. 009-40 Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| Popis: | We discuss how to consistently use Effective Field Theories (EFTs) to set universal bounds on heavy-mediator Dark Matter at colliders, without prejudice on the model underlying a given effective interaction. We illustrate the method for a Majorana fermion, universally coupled to the Standard Model quarks via a dimension-6 axial-axial four-fermion operator. We recast the ATLAS mono-jet analysis and show that a considerable fraction of the parameter space, seemingly excluded by a na\"ive EFT interpretation, is actually still unexplored. Consistently set EFT limits can be reinterpreted in any specific underlying model. We provide two explicit examples for the chosen operator and compare the reach of our model-independent method with that obtainable by dedicated analyses. Comment: 30 pages, 8 figures; v2: improved fig. 3, minor rephrasing, references added; v3: published version |
| Databáze: | OpenAIRE |
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