Probing chiral and flavored $Z^\prime$ from cosmic bursts through neutrino interactions

TL;DR

This paper investigates a chiral flavored $Z'$ gauge boson in a $U(1)$ extension of the Standard Model, exploring its interactions with neutrinos and implications for cosmic gamma-ray bursts and dark matter, providing new constraints from astrophysical and experimental data.

Contribution

It introduces a chiral flavored $Z'$ model in a $U(1)$ extension, analyzing neutrino interactions with cosmic bursts and constraining parameters using astrophysical and collider data.

Findings

Constraints on $g_X$ and $M_{Z'}$ from gamma-ray burst energy deposition.

Limits on $g_X-M_{Z'}$ plane from IceCube neutrino data.

Comparison with existing bounds from scattering, beam-dump, and $g-2$ experiments.

Abstract

The origin of tiny neutrino mass is an unsolved puzzle leading to a variety of phenomenological aspects beyond the Standard Model (BSM). We consider $U(1)$ gauge extension of the Standard Model (SM) where so-called seesaw mechanism is incarnated with the help of thee generations of Majorana type right-handed neutrinos followed by the breaking of $U(1)$ and electroweak gauge symmetries providing anomaly free structure. In this framework, a neutral BSM gauge boson $Z^\prime$ is evolved. To explore the properties of its interactions we consider chiral (flavored) frameworks where $Z^\prime$ interactions depend on the handedness (generations) of the fermions. In this paper we focus on $Z^\prime-$neutrino interactions which could be probed from cosmic explosions. We consider $\nu \overline{\nu} \to e^+ e^-$ process which can energize gamma-ray burst (GRB221009A, so far the highest energy) through energy deposition. Hence estimating these rates we constrain $U(1)$ gauge coupling $(g_X)$ and $Z^\prime$ mass $(M_{Z^\prime})$ under Schwarzchild (Sc) and Hartle-Thorne (HT) scenarios. We also study $\nu-$DM scattering through $Z^\prime$ to constrain $g_X-M_{Z^\prime}$ plane using IceCube data considering high energy neutrinos from cosmic blazar (TXS0506+056), active galaxy (NGC1068), the Cosmic Microwave Background (CMB) and the Lyman-$\alpha$ data, respectively. Finally highlighting complementarity we compare our results with current and prospective bounds on $g_X-M_{Z^\prime}$ plane from scattering, beam-dump and $g-2$ experiments.