Speaker
Dr
Yevgeny Stadnik
(Mainz)
Description
Ultra-low-mass bosonic dark matter particles produced after the Big Bang may form an oscillating classical field, which can be sought for in a variety of low-energy laboratory experiments based on spectroscopic, interferometric and magnetometric techniques, as well as in astrophysical phenomena. These bosonic particles can also mediate anomalous fifth forces between ordinary-matter particles. Recent measurements in atoms and astrophysical phenomena have already allowed us to improve on existing constraints on a broad range of non-gravitational interactions between dark bosons and ordinary-matter particles by many orders of magnitude (up to 15 orders of magnitude in the case of ultra-low-mass dark matter) [1-12]. Several other groups have recently reported new limits on ultra-low-mass dark matter from related measurements [13-17].
**References**
[1] Y. V. Stadnik, V. V. Flambaum, *Phys. Rev. D* **89**, 043522 (2014).
[2] B. M. Roberts, Y. V. Stadnik, V. A. Dzuba, V. V. Flambaum, N. Leefer, D. Budker, *Phys. Rev. Lett.* **113**, 081601 (2014).
[3] B. M. Roberts, Y. V. Stadnik, V. A. Dzuba, V. V. Flambaum, N. Leefer, D. Budker, *Phys. Rev. D* **90**, 096005 (2014).
[4] Y. V. Stadnik, V. V. Flambaum, *Phys. Rev. Lett.* **113**, 151301 (2014).
[5] Y. V. Stadnik, V. V. Flambaum, *Phys. Rev. Lett.* **114**, 161301 (2015).
[6] Y. V. Stadnik, V. V. Flambaum, *Phys. Rev. Lett.* **115**, 201301 (2015).
[7] Y. V. Stadnik, V. V. Flambaum, *Phys. Rev. A* **93**, 063630 (2016).
[8] Y. V. Stadnik, V. V. Flambaum, *Phys. Rev. A* **94**, 022111 (2016).
[9] N. Leefer, A. Gerhardus, D. Budker, V. V. Flambaum, Y. V. Stadnik, *Phys. Rev. Lett.* **117**, 271601 (2016).
[10] C. Abel *et al.* (nEDM collaboration), *Phys. Rev. X* **7**, 041034 (2017).
[11] Y. V. Stadnik, V. A. Dzuba, V. V. Flambaum, *Phys. Rev. Lett.* **120**, 013202 (2018).
[12] V. A. Dzuba, V. V. Flambaum, Y. V. Stadnik, *Phys. Rev. Lett.* **119**, 223201 (2017).
[13] K. Van Tilburg, N. Leefer, L. Bougas, D. Budker, *Phys. Rev. Lett.* **115**, 011802 (2015).
[14] A. Hees, J. Guena, M. Abgrall, S. Bize, P. Wolf, *Phys. Rev. Lett.* **117**, 061301 (2016).
[15] P. Wcislo *et al.*, *Nature Astronomy* **1**, 0009 (2016).
[16] D. Blas, D. Lopez Nacir, S. Sibiryakov, *Phys. Rev. Lett.* **118**, 261102 (2017).
[17] B. M. Roberts *et al.*, *Nature Comm.* **8**, 1195 (2017).
Summary
Ultra-low-mass bosonic dark matter particles produced after the Big Bang may form an oscillating classical field, which can be sought for in a variety of low-energy laboratory experiments based on spectroscopic, interferometric and magnetometric techniques, as well as in astrophysical phenomena. These bosonic particles can also mediate anomalous fifth forces between ordinary-matter particles. Recent measurements in atoms and astrophysical phenomena have already allowed us to improve on existing constraints on a broad range of non-gravitational interactions between dark bosons and ordinary-matter particles by many orders of magnitude (up to 15 orders of magnitude in the case of ultra-low-mass dark matter).
Primary author
Dr
Yevgeny Stadnik
(Mainz)
Co-author
Prof.
Victor Flambaum
(University of New South Wales)
