PT Journal
AU Belchior, FM
   Moreira, ARP
   Maluf, RV
   Almeida, CAS
TI 5D Elko spinor field non-minimally coupled to nonmetricity in f (Q) gravity
SO Physics Letters B
JI Phys. Lett. B
PY 2023
BP 138029
EP 8pp
VL 843
DI 10.1016/j.physletb.2023.138029
LA English
DE Elko field; Dark matter; Thick brane; Symmetric teleparallel gravity
AB This paper aims to investigate the localization of the five-dimensional spinor field known as Elko (dual-helicity eigenspinors of the charge conjugation operator) by employing a Yukawa-like geometrical coupling in which the Elko field is non-minimally coupled to nonmetricity scalar Q. We adopt the braneworld scenarios in which the first-order formalism with sine-Gordon and linear superpotentials is employed to obtain the warp factors. A linear function supports the zero-mode trapping within the geometric coupling, leading to the same effective potential as the scalar field. Moreover, an exotic term must be added to obtain real-valued massive modes. Such modes are investigated through the Schrodinger-like approach.
ER