Journal of High Energy Physics

, 2010:105 | Cite as

Visible effects of invisible Hidden Valley radiation

  • Lisa Carloni
  • Torbjörn Sjöstrand


Assuming there is a new gauge group in a Hidden Valley, and a new type of radiation, can we observe it through its effect on the kinematic distributions of recoiling visible particles? Specifically, what are the collider signatures of radiation in a hidden sector? We address these questions using a generic SU(N)-like Hidden Valley model that we implement in Pythia. We find that in both the e + e and the LHC cases the kinematic distributions of the visible particles can be significantly affected by the valley radiation. Without a proper understanding of such effects, inferred masses of “communicators” and of invisible particles can be substantially off.


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Copyright information

© SISSA, Trieste, Italy 2010

Authors and Affiliations

  1. 1.Theoretical High Energy Physics, Department of Astronomy and Theoretical PhysicsLund UniversityLundSweden

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