Constraining light dark matter with low-energy e+e− colliders

By R. Essig, J. Mardon, T. Volansky, Yi-Ming Zhong. 2013

175 citations recorded by the source corpus.

A bstractWe investigate the power of low-energy, high-luminosity electron-positron colliders to probe hidden sectors with a mass below ~ 10 GeV that couple to Standard Model particles through a light mediator. Such sectors provide well-motivated dark matter candidates, and can give rise to distinctive mono-photon signals at B-factories and similar experiments. We use data from an existing mono-photon search by BABAR to place new constraints on this class of models, and give projections for the sensitivity of a similar search at a future B-factory such as Belle II. We find that the sensitivity of such searches are more powerful than searches at other collider or fixed-target facilities for hidden-sector mediators and particles with masses between a few hundred MeV and 10 GeV. Mediators produced on-shell and decaying invisibly to hidden-sector particles such as dark matter can be probed particularly well. Sensitivity to light dark matter produced through an off-shell mediator is more limited, but may be improved with a better control of backgrounds, allowing background estimation and a search for kinematic edges. We compare our results to existing and future direct detection experiments and show that low-energy colliders provide an indispensable and complementary avenue to search for light dark matter. The implementation of a mono-photon trigger at Belle II would provide an unparalleled window into such light hidden sectors.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/ca4e5be589f2c010db692f267daa978bac8f65cb

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Nuclear and High Energy Physics

1. M. Drewes
2. Tongyan Lin
3. R. Essig
4. K. Zurek
5. M. Shaposhnikov
6. A. Ringwald
7. Alexey Boyarsky
8. Oleg Ruchayskiy

Citations in the corpus

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