ILC Workshop on Potential Experiments (ILCX2021)

Testing the neutrino mass generation mechanism at the electron positron colliders

27 Oct 2021, 13:00

20m

Room #4 (Zoom Meeting ID: 840 3553 0145)

Oral presentation using Zoom Session H: BSM particle production H-1: BSM particle production

Speaker

Arindam Das

Description

The neutrinos have tiny mass which is not predicted in the Standard Model. Therefore the extension of the SM is unavoidable. A plethora of scenarios have been proposed to explain the origin of the tiny neutrino mass which include tree level, quantum level and gauge extensions of the SM. In this talk we will discuss about the simple tree level neutrino mass models. Such models can include SM singlet heavy neutral fermionic, $SU(2)_𝐿$ triplet fermionic and $SU(2)_𝐿$ triplet scalar particles to describe the origin of the tiny neutrino mass and flavor mixing reproducing the neutrino oscillation data. There is another simple but interesting thought is to extend the SM using a general $U(1)_𝑋$ gauge group which demands the addition of three generations of the right handed neutrinos to get the anomaly free framework. After the $U(1)_𝑋$ symmetry breaking, the Majorana mass term of the RHNs are generated which can explain the origin of the tiny neutrino mass. In this talk we will discuss a variety of production channels of such beyond the SM particles at the $𝑒^−𝑒^+$ colliders which are responsible for the generation of the tiny neutrino mass.

Presentation materials

ADas_ILCX2021_RHN.pdf