Work

Tensor form factors of the Δ + baryon induced by isovector and isoscalar currents in QCD

Year: 2026

Type: article

Abstract: The tensor form factors of the Δ + baryon are defined through the matrix element of the tensor current and describe its internal structure and spin distribution. We present the full Lorentz decomposition for the Δ + → Δ + tensor current matrix element, including all independent structures consistent with Lorentz covariance, the Rarita–Schwinger constraints, and the discrete symmetries of Hermiticity, time-reversal, and parity invariance. By investigating the tensor form factors corresponding to both the isovector and isoscalar tensor currents, we observe differences that reflect the distinct contributions of up and down quark components in the Δ + baryon.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/mlt1-gvnw

Authors: Z. Asmaee, N. Hajirasouliha, K. Azizi

Institutions: University of Tehran, Doğuş University

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funder: Iran National Science Foundation

Award: G4703712952