21-26 July 2014
Renold Building
Europe/London timezone
Latest result and future prospect of MEG
Presented by Dr. Ryu SAWADA
on
25 Jul 2014
from
15:10
to
15:30
Type: Lepton Flavour Violation and Neutrinos
Track: Lepton Flavour Violation and Neutrinos
Content
Lepton flavor violating processes of charged particles (CLFV) are forbidden in the standard
model of elementary particle physics. The muon rare decay $\mu \rightarrow e\gamma$
is a CLFV process and has never been observed significantly.
On the other hand, in many new theories beyond the standard model,
for example supersymmetric grand unification models, the branching
ratio of $\mu \rightarrow e\gamma$ is predicted to be around $10^{-14}$--$10^{-12}$, which is
experimentally reachable.
In year 2013, the MEG experiment has finished its physics-data taking of five years to
search for $\mu^{+} \rightarrow e^{+}\gamma$ events with a branching-ratio sensitivity of
$~5\times10^{-13}$. Compared to the result published in 2013 by MEG, the full data statistics was
doubled by adding data taken in 2012 and 2013 with higher beam intensity.
The MEG collaboration plans to upgrade the detector to achieve a ten times better
sensitivity. In the conference, a physics result of the MEG experiment and
the studies for the upgrade will be presented.
Place
Location: Renold
Room: F2