We have searched for a light vector boson U, the possible carrier of a "dark force", with the KLOE detector at the DAΦNE e+e- collider, motivated by astrophysical evidence for the presence of dark matter in the Universe. Using e+e- collisions collected with an integrated luminosity of 239.3 pb-1, we look for a dimuon mass peak in the reaction e+e-→μ+μ-γ, corresponding to the decay U→μ+μ-. We find no evidence for a U vector boson signal. We set a 90% CL upper limit for the mixing parameter squared between the photon and the U boson of 1.6×10-5 to 8.6×10-7 for the mass region 520<mU<980 MeV
Direct searches of dark matter are performed at accelerator facilities. The existence of a new vecto...
We searched for the μ + μ − decay of a light vector gauge boson, also known as dark photon, in the e...
The existence of a new force beyond the Standard Model is compelling because it could explain severa...
AbstractWe have searched for a light vector boson U, the possible carrier of a “dark force”, with th...
We have searched for a light vector boson U , the possible carrier of a “dark force”, with the KLOE ...
We have searched for a light vector boson U, the possible carrier of a "dark force", with the KLOE d...
The existence of a light dark force mediator has been tested with the KLOE detector at DAΦNE. This p...
AbstractThe recent interest in a light gauge boson in the framework of an extra U(1) symmetry motiva...
AbstractThe existence of a light dark force mediator has been tested with the KLOE detector at DAΦNE...
We present a new limit on the production of a light dark-force mediator with the KLOE detector at DA...
The existence of a new force beyond the Standard Model is compelling because it could explain severa...
The existence of a new force beyond the Standard Model is compelling because it could explain severa...
The existence of a new force beyond the Standard Model is compelling because it could explain severa...
During the last years several Dark Sector Models have been proposed in order to address striking ast...
Abstract The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motiv...
Direct searches of dark matter are performed at accelerator facilities. The existence of a new vecto...
We searched for the μ + μ − decay of a light vector gauge boson, also known as dark photon, in the e...
The existence of a new force beyond the Standard Model is compelling because it could explain severa...
AbstractWe have searched for a light vector boson U, the possible carrier of a “dark force”, with th...
We have searched for a light vector boson U , the possible carrier of a “dark force”, with the KLOE ...
We have searched for a light vector boson U, the possible carrier of a "dark force", with the KLOE d...
The existence of a light dark force mediator has been tested with the KLOE detector at DAΦNE. This p...
AbstractThe recent interest in a light gauge boson in the framework of an extra U(1) symmetry motiva...
AbstractThe existence of a light dark force mediator has been tested with the KLOE detector at DAΦNE...
We present a new limit on the production of a light dark-force mediator with the KLOE detector at DA...
The existence of a new force beyond the Standard Model is compelling because it could explain severa...
The existence of a new force beyond the Standard Model is compelling because it could explain severa...
The existence of a new force beyond the Standard Model is compelling because it could explain severa...
During the last years several Dark Sector Models have been proposed in order to address striking ast...
Abstract The recent interest in a light gauge boson in the framework of an extra U(1) symmetry motiv...
Direct searches of dark matter are performed at accelerator facilities. The existence of a new vecto...
We searched for the μ + μ − decay of a light vector gauge boson, also known as dark photon, in the e...
The existence of a new force beyond the Standard Model is compelling because it could explain severa...