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Published July 2009 | Published + Accepted Version
Journal Article Open

Abelian hidden sectors at a GeV

Abstract

We discuss mechanisms for naturally generating GeV-scale hidden sectors in the context of weak-scale supersymmetry. Such low mass scales can arise when hidden sectors are more weakly coupled to supersymmetry breaking than the visible sector, as happens when supersymmetry breaking is communicated to the visible sector by gauge interactions under which the hidden sector is uncharged, or if the hidden sector is sequestered from gravity-mediated supersymmetry breaking. We study these mechanisms in detail in the context of gauge and gaugino mediation, and present specific models of Abelian GeV-scale hidden sectors. In particular, we discuss kinetic mixing of a U(1)_x gauge force with hypercharge, singlets or bi-fundamentals which couple to both sectors, and additional loop effects. Finally, we investigate the possible relevance of such sectors for dark matter phenomenology, as well as for low- and high-energy collider searches.

Additional Information

© SISSA/ISAS 2009. Received: May 19, 2009. Accepted: June 22, 2009. Published: July 15, 2009. We thank Brian Batell, Doug Finkbeiner, Jonathan Heckman, Dan Hooper, Markus Luty, John Mason, Peter Ouyang, Frank Petriello, Matt Schwartz, Tracy Slatyer, and Tomer Volansky for helpful discussions. This work is supported in part by the Harvard Center for the Fundamental Laws of Nature, by NSF grant PHY-0556111 (DP), and by the DOE including grant DE-FG02-95ER40896 (KMZ).

Attached Files

Published - David_E._Morrissey_2009_J._High_Energy_Phys._2009_050.pdf

Accepted Version - 0904.2567.pdf

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