RADIATIVE CORRECTIONS TO NEUTRINO MASS IN TYPE-3/2 SEESAW MECHANISM

Year 2022, Volume: 18 Issue: 1, 79 - 89, 01.04.2022

Canan Nurhan Karahan

Abstract

Recently proposed Type-3/2 seesaw mechanism is an alternative model to the Type-I seesaw. In this novel mechanism the light neutrino masses are induced via a vector-spinor, which keeps the Higgs mass stabilized at one loop. Here, in this letter, radiative corrections to the light neutrino masses via this vector spinor is studied. It is shown that the active neutrinos get trivial correction from the vector spinor loop as long as the mass of vector spinor is at the order of 2.8×10^12 GeV or higher. This is in agreement with the minimum mass value required for inducing active neutrino masses (M_ψ≈10^14 GeV) and naturalness criteria of Higgs field (M_ψ≈10^16 GeV) in Type-3/2 seesaw mechanism.

Keywords

Neutrino Mass, Type-3/2 Seesaw Mechanism, Radiative Corrections.

Thanks

The author sincerely thanks to Professor Durmuş Ali DEMİR and Dr. Ozan SARGIN for fruitful discussions.

TİP-3/2 TAHTAREVALLİ MEKANİZMASINDA NÖTRİNO KÜTLESİNE GELEN IŞINIMSAL DÜZELTMELER

Abstract

Yakın zamanda önerilen Tip-3/2 tahterevalli mekanizması, Tip-I tahterevalliye alternatif bir modeldir. Bu yeni mekanizmada, hafif nötrino kütleleri, Higgs kütlesini bir döngüde sabit tutan bir vektör-spinör aracılığıyla indüklenir. Burada, bu makalede, bu vektör spinör aracılığıyla hafif nötrino kütlelerine yapılan ışınımsal düzeltmeler incelenmiştir. Vektör spinör kütlesi 2.8×10^12 GeV veya daha yüksek olduğu sürece, aktif nötrinoların vektör spinör döngüsünden önemsiz düzeltmeler aldığı gösterilmiştir. Bu, Tip-3/2 tahterevalli mekanizmasında aktif nötrino kütlelerini indüklemek için gereken minimum kütle değeri (M_ψ≈10^14 GeV) ve Higgs alanının doğallık kriteri (M_ψ≈10^16 GeV) ile uyumludur.

Keywords

Nötrino Kütlesi, Tip-3/2 Tahtarevalli Mekanizması, Işınımsal Düzeltmeler

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