Susceptibility of the QCD vacuum to CP-odd electromagnetic background fields

Massimo D'Elia1, Marco Mariti, Francesco Negro

  • 1Dipartimento di Fisica, dell'Università di Pisa and INFN-Sezione di Pisa, Largo Pontecorvo 3, I-56127 Pisa, Italy. delia@df.unipi.it

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