17-24 July 2013
KTH and Stockholm University Campus
Europe/Stockholm timezone

Enhanced B0_d --> mu+ mu- Decay: What if?

19 Jul 2013, 14:30
D1 (KTH Campus)


KTH Campus

Talk presentation Flavour Physics and Fundamental Symmetries Flavour Physics and fundamental symmetries


Masaya Kohda (National Taiwan University)


The very rare B0_d --> mu+ mu- decay may be the last chance for New Physics in flavor sector at the LHC, before the 13 TeV run in 2015. Partially motivated by the known tension in sin(2beta/phi_1), enhancement beyond (3-4) x 10^-10 would likely imply the effect of a fourth generation of quarks. If observed at this level, the 126 GeV boson may not be the actual Higgs boson, while the b --> d quadrangle (modulo m_t') would jump out. The 2011-2012 data is likely not sensitive to values below 3 x 10^-10, and the mode should continue to be pursued with the 13 TeV run. We update to latest data, as well as make projections towards 13 TeV run.

Primary author

Masaya Kohda (National Taiwan University)


Dr Fanrong Xu (National Tsing Hua University (TW)) Prof. George Wei-Shu Hou (National Taiwan University (TW))

Presentation Materials