TY  - JOUR
AU  - Bertone, G.
AU  - Kong, K. C.
AU  - Ruiz de Austri, R.
AU  - Trotta, R.
PY  - 2011
DA  - 2011//
TI  - Global fits of the minimal universal extra dimensions scenario
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 036008
EP  - 15pp
VL  - 83
IS  - 3
PB  - Amer Physical Soc
AB  - In theories with universal extra dimensions (UED), the gamma(1) particle, first excited state of the hypercharge gauge boson, provides an excellent dark matter (DM) candidate. Here, we use a modified version of the SUPERBAYES code to perform a Bayesian analysis of the minimal UED scenario, in order to assess its detectability at accelerators and with DM experiments. We derive, in particular, the most probable range of mass and scattering cross sections off nucleons, keeping into account cosmological and electroweak precision constraints. The consequences for the detectability of the gamma(1) with direct and indirect experiments are dramatic. The spin-independent cross section probability distribution peaks at similar to 10(-11) pb, i.e. below the sensitivity of ton-scale experiments. The spin-dependent cross section drives the predicted neutrino flux from the center of the Sun below the reach of present and upcoming experiments. The only strategy that remains open appears to be direct detection with ton-scale experiments sensitive to spin-dependent cross sections. On the other hand, the LHC with 1 fb(-1) of data should be able to probe the current best-fit UED parameters.
SN  - 1550-7998
UR  - http://arxiv.org/abs/arXiv:1010.2023
UR  - https://doi.org/10.1103/PhysRevD.83.036008
DO  - 10.1103/PhysRevD.83.036008
LA  - English
N1  - ISI:000287655300012
ID  - Bertone_etal2011
ER  -