### Abstract

Lingua originale | English |
---|---|

pagine (da-a) | 169-192 |

Numero di pagine | 24 |

Rivista | Annales de la Fondation Louis de Broglie |

Volume | 31 |

Stato di pubblicazione | Published - 2006 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Chemical Engineering(all)

### Cita questo

**A "DUAL" MODEL OF A MASSIVE SPIN-1/2 POINT PARTICLE, AND A THEORETICAL EXPLANATION FOR THE EFFECT OF "MAXIMAL PARITY-VIOLATION".** / Ziino, Giorgio.

Risultato della ricerca: Article

}

TY - JOUR

T1 - A "DUAL" MODEL OF A MASSIVE SPIN-1/2 POINT PARTICLE, AND A THEORETICAL EXPLANATION FOR THE EFFECT OF "MAXIMAL PARITY-VIOLATION"

AU - Ziino, Giorgio

PY - 2006

Y1 - 2006

N2 - The open question left by elementary particle physics about the origin of the so-called ``maximal parity-violation'' is dealt with. It is shown that an actual theoretical answer could be found within a new relativistic quantum field formalism being a strictly covariant fermion--antifermion extension of the usual one for massive fermions. This formalism can account naturally for the effect at issue, in such a way as even to restore both parity and charge-conjugation symmetries: it spontaneously provides a true ``chiral field'' approach, which gives rise to the conjecture of a pseudoscalar (extra) charge variety anticommuting with the scalar (ordinary) one and just underlying the ``maximally parity-violating'' phenomenology. A dual - either ``Dirac'' or ``chiral'' - fermion model may be introduced accordingly, which redepicts any massive spin-1/2 point fermion as a particle being able to manifest two mutually exclusive, scalar- and pseudoscalar-charge-eigenstate natures, both singly respecting (though in opposite ways) ordinary mirror symmetry. The zero-mass limit would bring this internal duality to its extreme consequences: what would be automatically left is a pure two-component particle model that universally redefines a massless spin-1/2 fermion and the related antifermion as two strict pseudoscalar-charge eigenstates being just the mirror images of each other and at most carrying scalar (additional) charges bound to a maximal uncertainty in sign. Such an outcome may be expected to lead to a better understanding of the origin itself of fermion masses, since it can now be stated that only by acquiring a mass, and by gaining an extra helicity freedom degree, a fermion may also appear as a regular scalar-charge eigenstate.

AB - The open question left by elementary particle physics about the origin of the so-called ``maximal parity-violation'' is dealt with. It is shown that an actual theoretical answer could be found within a new relativistic quantum field formalism being a strictly covariant fermion--antifermion extension of the usual one for massive fermions. This formalism can account naturally for the effect at issue, in such a way as even to restore both parity and charge-conjugation symmetries: it spontaneously provides a true ``chiral field'' approach, which gives rise to the conjecture of a pseudoscalar (extra) charge variety anticommuting with the scalar (ordinary) one and just underlying the ``maximally parity-violating'' phenomenology. A dual - either ``Dirac'' or ``chiral'' - fermion model may be introduced accordingly, which redepicts any massive spin-1/2 point fermion as a particle being able to manifest two mutually exclusive, scalar- and pseudoscalar-charge-eigenstate natures, both singly respecting (though in opposite ways) ordinary mirror symmetry. The zero-mass limit would bring this internal duality to its extreme consequences: what would be automatically left is a pure two-component particle model that universally redefines a massless spin-1/2 fermion and the related antifermion as two strict pseudoscalar-charge eigenstates being just the mirror images of each other and at most carrying scalar (additional) charges bound to a maximal uncertainty in sign. Such an outcome may be expected to lead to a better understanding of the origin itself of fermion masses, since it can now be stated that only by acquiring a mass, and by gaining an extra helicity freedom degree, a fermion may also appear as a regular scalar-charge eigenstate.

UR - http://hdl.handle.net/10447/22506

UR - http://aflb.ensmp.fr/AFLB-312/aflb312m503.htm

M3 - Article

VL - 31

SP - 169

EP - 192

JO - Annales de la Fondation Louis de Broglie

JF - Annales de la Fondation Louis de Broglie

SN - 0182-4295

ER -