Compensation of B-L charge of matter with relic sneutrinos

TL;DR

This paper explores how relic sneutrinos might compensate B-L charge of matter, expanding the allowed range of the B-L interaction constant based on experimental data.

Contribution

It investigates the potential compensation of B-L charge by relic sneutrinos, broadening the constraints on the B-L interaction constant.

Findings

Allowed B-L interaction constant range: 10^{-29} to 10^{-12}.

Experimental data supports charge compensation mechanism.

Without compensation, the upper limit is 10^{-49}.

Abstract

We consider massless gauge boson connected to B-L charge with and without compensation to complete the investigation of the gauging of B and L charges. Relic sneutrinos predicted by SUSY and composite models may compensate B-L charge of matter. As a consequence of the possible compensation mechanism we have shown that the available experimental data admit the range of the B-L interaction constant, 10^{-29} < {\alpha}_{B-L} < 10^{-12}, in addition to {\alpha}_{B-L} < 10^{-49} obtained without compensation.