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Author Povey, Rhys G. ♦ Hartnett, John G. ♦ Tobar, Michael E.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ♦ MASS ♦ MICROWAVE RADIATION ♦ OPTIMIZATION ♦ PHOTONS ♦ REGENERATION ♦ SENSITIVITY ♦ BOSONS ♦ ELECTROMAGNETIC RADIATION ♦ ELEMENTARY PARTICLES ♦ MASSLESS PARTICLES ♦ RADIATIONS
Abstract It has been proposed that microwave cavities can be used in a photon regeneration experiment to search for hidden sector photons. Using two isolated cavities, the presence of hidden sector photons could be inferred from a ''light shining through a wall'' phenomenon. The sensitivity of the experiment has strong a dependence on the geometric construction and electromagnetic mode properties of the two cavities. In this paper we perform an in-depth investigation to determine the optimal setup for such an experiment. We also describe the results of our first microwave cavity experiment to search for hidden sector photons. The experiment consisted of two cylindrical copper cavities stacked axially inside a single vacuum chamber. At a hidden sector photon mass of 37.78 {mu}eV we place an upper limit on the kinetic mixing parameter {chi}=2.9x10{sup -5}. Whilst this result lies within already established limits our experiment validates the microwave cavity ''light shining through a wall'' concept. We also show that the experiment has great scope for improvement, potentially able to reduce the current upper limit on the mixing parameter {chi} by several orders of magnitude.
ISSN 05562821
Educational Use Research
Learning Resource Type Article
Publisher Date 2010-09-01
Publisher Place United States
Journal Physical Review. D, Particles Fields
Volume Number 82
Issue Number 5


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