Work

Waveform, memory and classical soft scalar theorems

Year: 2025

Type: article

Abstract: We examine a scattering process in which a set of particles come together, interact through a long-range massless scalar force like dilaton mediated and then disperse. Using worldline formalism, we compute the trajectories of the scattered particles and derive an infinite series of subleading terms in the late-time and early-time expansion of the scalar waveform. We study the scalar waveform, the scalar memory term and classical soft scalar theorems. We ignore gravitational interactions and discuss the challenges if we include them.

Source: Nuclear Physics B

DOI: 10.1016/j.nuclphysb.2025.117044

Authors: Sarthak Duary, Pabitra Ray

Institutions: Tsinghua University, Tata Institute of Fundamental Research

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Department of Atomic Energy, Government of India, Tsinghua University

OpenAlex ID: W4413095573

FWCI: 1.418

Cites: 25

Cited by: 3

Related to: 10