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Evidence for light-by-light scattering and limits on axion-like-particles from ultraperipheral PbPb collisions at $\sqrt{s_{\rm NN}}$ =5.02TeV
A measurement of light-by-light scattering, $\gamma\gamma \rightarrow \gamma\gamma$, in ultraperipheral PbPb collisions at a centre-of-mass energy per nucleon pair of $5.02$ TeV is reported. The analysis is conducted using a data sample corresponding to an integrated luminosity of $390~\mu \rm{b}^{-...
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| Lenguaje: | eng |
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2018
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| Acceso en línea: | https://dx.doi.org/10.22323/1.345.0179 http://cds.cern.ch/record/2650975 |