Search for chameleon particles via photon regeneration

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Description

We report the first results from the GammeV search for chameleon particles, which may be created via photon-photon interactions within a strong magnetic field. The chameleons are assumed to have matter effects sufficiently strong that they reflect from all solid surfaces of the apparatus, thus evading detection in our previous search for weakly-interacting axion-like particles. We implement a novel technique to create and trap the reflective particles within a jar and to detect them later via their afterglow as they slowly convert back into photons. These measurements provide the first experimental constraints on the couplings of chameleons to photons.

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4 pages

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Chou, Aaron S. September 1, 2008.

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Description

We report the first results from the GammeV search for chameleon particles, which may be created via photon-photon interactions within a strong magnetic field. The chameleons are assumed to have matter effects sufficiently strong that they reflect from all solid surfaces of the apparatus, thus evading detection in our previous search for weakly-interacting axion-like particles. We implement a novel technique to create and trap the reflective particles within a jar and to detect them later via their afterglow as they slowly convert back into photons. These measurements provide the first experimental constraints on the couplings of chameleons to photons.

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4 pages

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  • Report No.: FERMILAB-CONF-08-332-AD-CD-E-TD
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 939437
  • Archival Resource Key: ark:/67531/metadc899615

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  • September 1, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Aug. 1, 2017, 11:15 a.m.

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Chou, Aaron S. Search for chameleon particles via photon regeneration, article, September 1, 2008; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc899615/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.