TY  - JOUR
AU  - Caputo, A.
AU  - Esposito, A.
AU  - Geoffray, E.
AU  - Polosa, A. D.
AU  - Sun, S. C.
PY  - 2020
DA  - 2020//
TI  - Dark matter, dark photon and superfluid He-4 from effective field theory
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 135258
EP  - 6pp
VL  - 802
PB  - Elsevier
KW  - Light dark matter
KW  - Effective theory
KW  - Helium
KW  - Phonon
KW  - Dark photon
AB  - We consider a model of sub-GeV dark matter whose interaction with the Standard Model is mediated by a new vector boson (the dark photon) which couples kinetically to the photon. We describe the possibility of constraining such a model using a superfluid He-4 detector, by means of an effective theory for the description of the superfluid phonon. We find that such a detector could provide bounds that are competitive with other direct detection experiments only for ultralight vector mediator, in agreement with previous studies. As a byproduct we also present, for the first time, the low-energy effective field theory for the interaction between photons and phonons.
SN  - 0370-2693
UR  - https://arxiv.org/abs/1911.04511
UR  - https://doi.org/10.1016/j.phystab.2020.135258
DO  - 10.1016/j.phystab.2020.135258
LA  - English
N1  - WOS:000515091400017
ID  - Caputo_etal2020
ER  -