Correlating B-q(0) -> mu(+)mu(-) and K-L -> pi(0)nu(nu)over-bar decays with four generations
Journal
Physics Letters B
Journal Volume
2018
Journal Issue
10
Pages
458-463
Date Issued
2018
Author(s)
Abstract
The Bs→μ+μ- mode has finally been observed, albeit at rate 1.2σ below Standard Model (SM) value, while the rarer Bd0→μ+μ- decay has central value close to 4 times SM expectation but with only 2.2σ significance. The measurement of CP violating phase ϕs has finally reached SM sensitivity. Concurrent with improved measurements at LHC Run 2, KL→π0νν- and K+→π+νν decays are being pursued in a similar time frame. We find, whether Bd0→μ+μ- is enhanced or not, KL→π0νν can be enhanced up to the Grossman-Nir bound in the fourth generation model, correlated with some suppression of Bs→μ+μ-, and with ϕs remaining small.
Type
journal article