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001-es BibID:	BIBFORM103382
035-os BibID:	(Wos)000504469900006 (Scopus)85077105741
Első szerző:	Jentschura, Ulrich David (fizikus)
Cím:	Lorentz breaking and SU(2)L x U(1)Y gauge invariance for neutrinos / U. D. Jentschura, I. Nándori, G. Somogyi
Dátum:	2019
ISSN:	0218-3013
Megjegyzések:	Conceivable Lorentz-violating effects in the neutrino sector remain a research area of great general interest, as they touch upon the very foundations on which the Standard Model and our general understanding of fundamental interactions is laid. Here, we investigate the relation of Lorentz violation in the neutrino sector in light of the fact that neutrinos and corresponding left-handed charged leptons form SU(2)L doublets under the electroweak gauge group. Lorentz-violating effects thus cannot be fully separated from questions related to gauge invariance. The model dependence of the effective interaction Lagrangians used in various recent investigations is investigated, with a special emphasis on neutrino splitting, otherwise known as neutrino-pair Cerenkov radiation, NPCR, and vacuum pair emission (electron-positron-pair Cerenkov radiation, LPCR). We investigate two scenarios in which Lorentz violating effects do not necessarily also break electroweak gauge invariance. The first of these involves a restricted set of gauge transformation, a subgroup of SU(2)L xU(1)Y , while in the second, differential Lorentz violation is exclusively introduced by the mixing of the neutrino flavor and mass eigenstates. Our study culminates in a model which fully preserves SU(2)L ? U(1)Y gauge invariance, involves flavor-dependent Lorentz-breaking parameters, and still allows for NPCR and LPCR decays to proceed.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Neutrinos Lorentz-violation gauge invariance spontaneous Lorentz-symmetry breaking relation of Lorentz-symmetry breaking and gauge invariance fundamental symmetries
Megjelenés:	International Journal Of Modern Physics E-Nuclear Physics. - 28 : 9 (2019), p. 1-18. -
További szerzők:	Somogyi Gábor (1979-) (fizikus) Nándori István (1973-) (fizikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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