Space-time variation of the electron-to-proton mass ratio in a Weyl model

作者：Landau Susana J^*; Teppa Pannia Florencia A; Bonder Yuri; Sudarsky Daniel

来源：Astroparticle Physics, 2012, 35(6): 377-382.

DOI：10.1016/j.astropartphys.2011.10.008

• Varying fundamental constants
• Equivalence principle

Seeking a possible explanation for recent data indicating a space-time variation of the electron-to-proton mass ratio within the Milky Way, we consider a phenomenological model where the effective fermion masses depend on the local value of the Weyl tensor. We contrast the required values of the model%26apos;s free parameters with bounds obtained from modern tests on the violation of the weak equivalence principle and we find that these quantities are incompatible. This result indicates that the variation of nucleon and electron masses through a coupling with the Weyl tensor is not a viable model.

• 出版日期2012-1