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Revue de Synthèse

0035-1776
 

 ARTICLE VOL 134/1 - 2013  - pp.9-27  - doi:10.1007/s11873-013-0208-9
TITRE
La Resurrezione di un Giovane Fisico

TITLE
Ettore Majorana’s legacy: An historical analysis

RÉSUMÉ

La scomparsa di Ettore Majorana nel 1938 ha prodotto numerose ricostruzioni biografiche. In questa sede vorremmo insistere piuttosto sui suoi lavori scientifici e tentare di coglierne l’importanza effettiva. Alcuni articoli di Majorana furono compresi solo dopo la Seconda Guerra mondiale, ed in particolare l’ultimo, che risale al 1937, nel quale il fisico proponeva una “teoria simmetrica dell’elettrone e del positrone”. Questa teoria potrebbe essere adeguata a quelle fascinose particelle dette neutrini, come del resto a particelle previste da certi teorici contemporanei.



ABSTRACT

Since his mysterious disappearance in 1938, there have been many biographical accounts of Ettore Majorana’s short life. Yet, his scientific work and his influence on the development of physics are often left in the background. The thrust of this article is precisely to shed light on them. In fact, some of Majorana’s articles were only understood after World War II. Notably, this was the case of his last article. Written in 1937, it represents the best long-lasting contribution of Ettore Majorana to particle physics. He envisages, thanks to a new formalism, that neutrinos could be identical to their own antiparticles. The answer to this question posed by Majorana more than half a century ago may be found thanks to several experiments now carried out. It could give a lightning on the nature of dark matter and an explanation to the dominance of matter over antimatter in our universe.



AUTEUR(S)
Étienne KLEIN

MOTS-CLÉS
Fermi, Dirac, Majorana, antimateria, neutrino, materia oscura

KEYWORDS
Fermi, Dirac, Majorana, antimatter, neutrino, dark matter

LANGUE DE L'ARTICLE
Français

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