Hunting up low-mass bosons from the Sun using HPGe detector

Details Hunting up low-mass bosons from the Sun using HPGe detector Hunting up low-mass bosons from the Sun using HPGe detector

2011-01-28

arxiv.org/abs/1101.5523v2

Phys.Lett.B699:21-24,2011

Physics

High Energy Physics

High Energy Physics - Experiment

elsarticle style, 4 eps figures, 4 pages, minor corrections, some clarifications added, to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2011.03.045

In this experiment we aim to look for keV-mass bosons emitted from the Sun, by looking at a process analogous to the photoelectric/Compton effect inside the HPGe detector. Their coupling to both electrons and nucleons is assumed. For masses above 25 keV, the mass dependence of our limit on the scalar-electron coupling reveals a constraint which proves stronger than that obtained recently and based on the very good agreement between the measured and predicted solar neutrino flux from the ^{8}B reaction. On the other hand, the mass dependence of our limit on the scalar-proton/electron coupling together entails a limit on a possible Yukawa addition to the gravitational inverse square low. Such a constraint on the Yukawa interactions proves much stronger than that derived from the latest AFM Casimir force measurement.

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