Search for light gauge bosons of the dark sector at the Mainz Microtron.
Phys Rev Lett
; 106(25): 251802, 2011 Jun 24.
Article
em En
| MEDLINE
| ID: mdl-21770630
ABSTRACT
A new exclusion limit for the electromagnetic production of a light U(1) gauge boson γ' decaying to e + e- was determined by the A1 Collaboration at the Mainz Microtron. Such light gauge bosons appear in several extensions of the standard model and are also discussed as candidates for the interaction of dark matter with standard model matter. In electron scattering from a heavy nucleus, the existing limits for a narrow state coupling to e + e- were reduced by nearly an order of magnitude in the range of the lepton pair mass of 210 MeV/c2}
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MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Alemanha