Speaker
Dr
Cecilia Voena
(INFN Roma)
Description
The MEG experiment took data at the Paul Scherrer Institut in the years 2009-2013
and published the most stringent limit on the charged lepton flavor violating decay
$\mu \rightarrow e \gamma$: BR($\mu \rightarrow e \gamma$) $<4.2 \times 10^{-13}$ $@90\%$ C.L.
The MEG detector is currently being upgraded in order to reach a sensitivity of $\sim 4 \times 10^{-14}$,
which corresponds to an improvement of one order of magnitude.
The basic idea of MEG-II is to achieve the highest possible sensitivity by making the maximum use ($7\times10^{7}$ muons/s) of the available muon
intensity at PSI with an improved detector, keeping the background at a manageable level.
The status of the MEG-II detector and the current schedule will be presented.
MEG-II, together with the next generation charged lepton flavor violation experiments Mu3e ($\mu^+\rightarrow e^+e^-e^+$) at PSI and Mu2e and COMET ($\mu \rightarrow e$ conversion)
at Fermilab and J-PARC respectively, will reach very high sensitivities in the next years. Accelerator upgrades are also expected, that will make muon beams with intensities of the order of $10^{10}$ muons/s feasible. At this extremely high beam rates, new detector concepts should be adopted for $\mu \rightarrow e \gamma$ searches, in order to
overcome the accidental background. Some future directions will be discussed.
Summary
I will present the status and the schedule for the MEG-II experiment
that will search the charged lepton flavor violating decay $\mu \rightarrow e \gamma$ with a sensitivity
of $\sim 4 \times 10^{-14}$. I will also discuss future directions for $\mu \rightarrow e \gamma$ searches in a scenario with beam intensities of the order of $10^{10}$ muons, that seems possible in the next years.
Primary author
Dr
Cecilia Voena
(INFN Roma)
