wimprates

Differential rates of WIMP-nucleus scattering in the standard halo model, primarily for xenon detectors.

https://github.com/JelleAalbers/wimprates

Installation and usage

• pip install wimprates
• See this basic example for usage.

The package uses numericalunits (https://pypi.python.org/pypi/numericalunits); all function inputs are expected to have proper units (except for the rate_wimp_std convenience function).

Features

• Spin-indendent and spin-dependent DM-nucleus scattering;
• Elastic NR, bremsstrahlung, and Migdal effect detection mechanisms;
• Time dependent observed dark matter speed distribution (annual modulation only, no daily modulation);
• DM-electron scattering (experimental);
• Support for xenon (all models, default), argon, germanium, and silicon (many models).

How to cite

• J. Aalbers, J. Angevaare, K. Morå, and B. Pelssers, wimprates: v0.4.1 (2022). https://doi.org/10.5281/zenodo.2604222.
• The original sources for models used in wimprates are:
  • Spin-dependent scattering: Klos, P. et al., Phys.Rev. D88 (2013) no.8, 083516, Erratum: Phys.Rev. D89 (2014) no.2, 029901. [arXiv:1304.7684]
  • Bremsstrahlung: C. Kouvaris and J. Pradler, Phys. Rev. Lett. 118, 031803 (2017). arXiv:1607.01789
  • Migdal effect: M. Ibe et al., JHEP 1803 (2018) 194. arXiv:1707.07258
  • Dark matter electron scattering: R. Essig, T. Volansky, T.-T. Yu: Phys. Rev. D 96, 043017 (2017). arXiv:1703.00910.
    • Ionization form factors from: T.-T. Yu, http://ddldm.physics.sunysb.edu/ddlDM/, 2018-11-05.

Contributors

• Jelle Aalbers
• Joran Angevaare
• Knut Dundas Mora
• Bart Pelssers

History

0.5.0 (2023-02-13)

• Change default v_0 and v_pec to match current conventions (#14)
• If no time is provided, spectra are now calculated at a reference time (#14)
• Fix bug where user-specified halo models would not override v_0 (#14)
• Fix tests for numpy 1.24 (#15)

0.4.1 (2022-09-01)

• Restore python 3.7 compatibility (#13)

0.4.0 (2022-08-14)

• Fixes for alternate materials (#7)
• Update notebooks, continuous integration tests (#9)

0.3.2 (2019-11-24)

• Fix technical release issue

0.3.1 (2019-11-24)

• Alternate materials for SI scattering (#4)
• Faster J200 timestamp conversion (#5)

0.3.0 (2019-07-22)

• Flexible halo model (#3)
• DM form factor choice for DM-electron scattering

0.2.2 (2019-03-27)

• DM-electron scattering

0.2.1 (2019-03-23)

• Fix package data specification

0.2.0 (2019-03-23)

• Annual modulation (#2)
• Migdal effect
• Configurable mediator mass
• Resistance to numericalunits.reset_units()
• Restructure as python package

0.1 (2018-01-17)

• Initial release