How to Observe the Vacuum Decay in Low-Energy Heavy-Ion Collisions.

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ID: 56478
2019
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Abstract
In slow collisions of two bare nuclei with the total charge larger than the critical value Z_{cr}≈173, the initially neutral vacuum can spontaneously decay into the charged vacuum and two positrons. The detection of the spontaneous emission of positrons would be direct evidence of this fundamental phenomenon. However, the spontaneously produced particles are indistinguishable from the dynamical background in the positron spectra. We show that the vacuum decay can nevertheless be observed via impact-sensitive measurements of pair-production probabilities. The possibility of such an observation is demonstrated using numerical calculations of pair production in low-energy collisions of heavy nuclei.
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maltsev2019howphysical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Maltsev, I A;Shabaev, V M;Popov, R V;Kozhedub, Y S;Plunien, G;Ma, X;Stöhlker, Th;Tumakov, D A;
Journal physical review letters
Year 2019
DOI
10.1103/PhysRevLett.123.113401
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