About the Authors

Giordano Mancini

giordano.mancini@sns.it

Affiliation Scuola Normale Superiore di Pisa, Piazza dei Cavalieri 7, 56126, Pisa, Italy, and Istituto Nazionale di Fisica Nucleare (INFN) sezione di Pisa, Largo Bruno Pontecorvo 3, 56127, Pisa, Italy

Costantino Zazza

Affiliation Università degli Studi di Roma “La Sapienza”, Piazzale Aldo Moro 5, 00185, Roma, Italy

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CZ GM. Performed the experiments: GM. Analyzed the data: GM. Contributed reagents/materials/analysis tools: CZ GM. Wrote the paper: CZ GM.