Work

Form Factors from String Amplitudes

Year: 2025

Type: article

Abstract: In this Letter, we propose a stringy model for n-point tree-level form factor with the off-shell operator in the scalar and gluon theories from the bosonic string disk amplitude: n open string states and one closed string state scatter on the disk. In the field-theory limit (α^{'}→0), the "stringy form factor" reduces to the form factor, which helps us to investigate the hidden properties of the field-theory form factors, manifest the factorization and soft behaviors, and uncover more nontrivial relations between form factors and scattering amplitudes.

Source: Physical Review Letters

DOI: 10.1103/svb5-mhpc

Author: Qu Cao

Institutions: Chinese Academy of Sciences, Institute of Theoretical Physics, Zhejiang University

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750

Funder: National Natural Science Foundation of China