We present results of searches for vector and pseudoscalar bosonic super-weakly interacting massive particles (WIMPs), which are dark matter candidates with masses at the keV-scale, with the XENON100 experiment. XENON100 is a dual-phase xenon time projection chamber operated at the Laboratori Nazionali del Gran Sasso. A profile likelihood analysis of data with an exposure of 224.6 live days Ã34 kg showed no evidence for a signal above the expected background. We thus obtain new and stringent upper limits in the (8-125) keV/c2 mass range, excluding couplings to electrons with coupling constants of gae>3Ã10-13 for pseudo-scalar and αâ²/α>2Ã10-28 for vector super-WIMPs, respectively. These limits are derived under the assumption that super-WIMPs constitute all of the dark matter in our galaxy.
Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Althueser, L., Amaro, F., et al. (2017). Search for bosonic super-WIMP interactions with the XENON100 experiment. PHYSICAL REVIEW D, 96(12), 1-6 [10.1103/PhysRevD.96.122002].
Search for bosonic super-WIMP interactions with the XENON100 experiment
Brown, E.;Di Gangi, P.
Membro del Collaboration Group
;Di Giovanni, A.;Galloway, M.;Garbini, M.
Membro del Collaboration Group
;Massoli, F. V.
;Reichard, S.;Sartorelli, G.
Membro del Collaboration Group
;Selvi, M.
Membro del Collaboration Group
;Wei, Y.;
2017
Abstract
We present results of searches for vector and pseudoscalar bosonic super-weakly interacting massive particles (WIMPs), which are dark matter candidates with masses at the keV-scale, with the XENON100 experiment. XENON100 is a dual-phase xenon time projection chamber operated at the Laboratori Nazionali del Gran Sasso. A profile likelihood analysis of data with an exposure of 224.6 live days Ã34 kg showed no evidence for a signal above the expected background. We thus obtain new and stringent upper limits in the (8-125) keV/c2 mass range, excluding couplings to electrons with coupling constants of gae>3Ã10-13 for pseudo-scalar and αâ²/α>2Ã10-28 for vector super-WIMPs, respectively. These limits are derived under the assumption that super-WIMPs constitute all of the dark matter in our galaxy.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.