289 citations · 5.3k across the 138 of their papers we have counts for
6 papers · 1 filter
B -> pi pi, New Physics in B -> pi K and Rare K and B Decays
Andrzej J. Buras, Robert Fleischer, Stefan Recksiegel +1
We summarize a recent strategy for a global analysis of the B -> pi pi, pi K systems and rare decays. We find that the present B -> pi pi and B -> pi K data cannot be simultaneousl…
The B -> pi pi,pi K Puzzles in the Light of New Data: Implications for the Standard Model, New Physics and Rare Decays
Andrzej J. Buras, Robert Fleischer, Stefan Recksiegel +1
Recently, we developed a strategy to analyse the B -> pi pi,pi K data. We found that the B -> pi pi measurements can be accommodated in the Standard Model (SM) through large non-fa…
General Lower Bounds for b -> d Penguin Processes
Robert Fleischer, Stefan Recksiegel
For the exploration of flavour physics, b -> d penguin processes are an important aspect, with the prominent example of \bar B^0_d -> K^0 \bar K^0. We recently derived lower bounds…
Waiting for the Discovery of B^0_d -> K^0 \bar K^0
Robert Fleischer, Stefan Recksiegel
The CP asymmetries of the decay B_d^0 -> K^0 \bar K^0, which originates from \bar b -> \bar d s \bar s flavour-changing neutral-current processes, and its CP-averaged branching rat…
Flavour Physics and CP Violation
Robert Fleischer
The starting point of these lectures is an introduction to the weak interactions of quarks and the Standard-Model description of CP violation, where the key element is the Cabibbo-…
Anatomy of Prominent B and K Decays and Signatures of CP-Violating New Physics in the Electroweak Penguin Sector
Andrzej J. Buras, Robert Fleischer, Stefan Recksiegel +1
The recent observation of B_d -> pi^0 pi^0 at the B factories with a surprisingly large branching ratio represents a challenge for theory, and complements the amazingly small B_d -…