Testing Left-Right extensions of the standard model of electroweak interactions with double-beta decay and LHC measurements

37th Brazilian Meeting on Nuclear Physics

Civitarese, O.^1 ; Suhonen, J.^2 ; Zuber, K.^3

Department of Physics, University of la Plata, 49 y 115.c.c.67, La Plata

1900, Argentina^1

Department of Physics, Unversity of Jyväskylä, P.O. Box 35 (YFL), Jyväskylä

FL-40014, Finland^2

Department of Physics, TU Dresden, Zellescher 19, Dresden

01069, Germany^3

关键词: Combined analysis;    Double beta decay;    Electroweak interactions;    Mixing angle;    Neutrinoless double-beta decays;    Right handed;    The standard model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/630/1/012055/pdf
DOI  :  10.1088/1742-6596/630/1/012055

来源: IOP

【 摘 要 】

The minimal extension of the standard model of electroweak interactions allows for massive neutrinos, a massive right-handed boson WR, and a left-right mixing angle ζ. While an estimate of the light (electron) neutrino can be extracted from the non-observation of the neutrinoless double beta decay, the limits on the mixing angle and the mass of the righthanded (RH) boson may be extracted from a combined analysis of the double beta decay measurements (GERDA, EXO-200 and KamLAND-Zen collaborations) and ATLAS data on the two-jets two-leptons signals following the excitation of a virtual RH boson mediated by a heavy-mass neutrino. In this work we shall compare results of both types of experiments, and show that the estimates are not in tension.