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A proposal for testing subcritical vacuum pair production with high power lasers

Gregori, G. and Blaschke, D. B. and Rajeev, P. P. and Chen, H. and Clarke, R. J. and Huffman, T. and Murphy, C. D. and Prozorkevich, A. V. and Roberts, C. D. and Roepke, G. and Schmidt, S. M. and Smolyansky, S. A. and Wilks, S. and Bingham, R. (2010) A proposal for testing subcritical vacuum pair production with high power lasers. High Energy Density Physics, 6 (2 Spec). pp. 166-170. ISSN 1574-1818

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We present a proposal for testing the prediction of non-equilibrium quantum field theory below the Schwinger limit. The proposed experiments should be able to detect a measurable number of gamma rays resulting from the annihilation of pairs in the focal spot of two opposing high-intensity laser beams. We discuss the dependence of the expected number of gamma rays with the laser parameters and compare with the estimated background level of gamma hits for realistic laser conditions. (C) 2009 Elsevier By. All rights reserved.