Fitting a self-interacting dark matter model to data ranging from satellite galaxies to galaxy clusters

Sudhakantha Girmohanta; Robert Shrock

doi:10.1103/PhysRevD.107.063006

Fitting a self-interacting dark matter model to data ranging from satellite galaxies to galaxy clusters

Sudhakantha Girmohanta
, Robert Shrock

Institute for Theoretical Physics

Stony Brook University
Shanghai Jiao Tong University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We present a fit to observational data in an asymmetric self-interacting dark matter model using our recently calculated cross sections that incorporate both t-channel and u-channel exchanges in the scattering of identical particles. We find good fits to the data ranging from dwarf galaxies to galaxy clusters and equivalent relative velocities from ∼20 km/s to ≳103 km/s. We compare our results with previous fits that used only t-channel exchange contributions to the scattering.

Original language	English
Article number	063006
Journal	Physical Review D
Volume	107
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevD.107.063006
State	Published - Mar 15 2023

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10.1103/PhysRevD.107.063006

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title = "Fitting a self-interacting dark matter model to data ranging from satellite galaxies to galaxy clusters",

abstract = "We present a fit to observational data in an asymmetric self-interacting dark matter model using our recently calculated cross sections that incorporate both t-channel and u-channel exchanges in the scattering of identical particles. We find good fits to the data ranging from dwarf galaxies to galaxy clusters and equivalent relative velocities from ∼20 km/s to ≳103 km/s. We compare our results with previous fits that used only t-channel exchange contributions to the scattering.",

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AU - Shrock, Robert

N1 - Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

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N2 - We present a fit to observational data in an asymmetric self-interacting dark matter model using our recently calculated cross sections that incorporate both t-channel and u-channel exchanges in the scattering of identical particles. We find good fits to the data ranging from dwarf galaxies to galaxy clusters and equivalent relative velocities from ∼20 km/s to ≳103 km/s. We compare our results with previous fits that used only t-channel exchange contributions to the scattering.

AB - We present a fit to observational data in an asymmetric self-interacting dark matter model using our recently calculated cross sections that incorporate both t-channel and u-channel exchanges in the scattering of identical particles. We find good fits to the data ranging from dwarf galaxies to galaxy clusters and equivalent relative velocities from ∼20 km/s to ≳103 km/s. We compare our results with previous fits that used only t-channel exchange contributions to the scattering.

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JO - Physical Review D

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ER -

Fitting a self-interacting dark matter model to data ranging from satellite galaxies to galaxy clusters

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