Jul 22 – 28, 2018
Kellogg Hotel and Conference Center
EST timezone

Light-neutrino exchange and long-distance contributions to neutrinoless double beta decay

Jul 24, 2018, 6:45 PM
Lincoln (Kellogg Hotel and Conference Center)


Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Poster Weak Decays and Matrix Elements Poster reception


Prof. Xu Feng (Peking University)


Recently four experiments have demonstrated new levels of sensitivity to neutrinoless double beta ($0\nu\beta\beta$) decay. Such decay, if exists, would prove that neutrinos are Majorana fermions. The light-neutrino exchange is the most popular mechanism to explain the $0\nu\beta\beta$ decay. In this mechanism, the decay amplitude is proportional to the effective neutrino mass $m_{\beta\beta}$ and thus the detection of $0\nu\beta\beta$ decay would provide the information about the absolute neutrino mass. We report the lattice QCD calculation of the $0\nu\beta\beta$ decay amplitude, which involves light-neutrino exchange and significant long-distance contributions.

Primary author

Prof. Xu Feng (Peking University)

Presentation materials