245 citations · 1.1k across the 17 of their papers we have counts for
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Bounding the Minimal 331 Model through the Decay B -> X_s gamma
Christoph Promberger, Sebastian Schatt, Felix Schwab +1
We study the decay B -> X_s gamma within the framework of the minimal 331 model, taking into account both new experimental and theoretical developments that allow us to update and…
On Puzzles and Non-Puzzles in B -> pi pi, pi K Decays
Robert Fleischer, Stefan Recksiegel, Felix Schwab
Recently, we have seen interesting progress in the exploration of CP violation in B^0_d -> pi^+ pi^-: the measurements of mixing-induced CP violation by the BaBar and Belle collabo…
Flavor Changing Neutral Current Effects and CP Violation in the Minimal 3-3-1 Model
Christoph Promberger, Sebastian Schatt, Felix Schwab
We investigate in detail the flavor structure of the minimal 331 model and its implications for several flavor changing neutral current (FCNC) processes. In this model, where the w…
|V_us| from Strange Hadronic Tau Data
Elvira Gamiz, Matthias Jamin, Antonio Pich +2
We report on recent work to determine the CKM matrix element |V_{us}| using strange hadronic τdecay data. We use the recent OPAL update of the strange spectral function, while on t…
New Aspects of B -> pi pi, pi K and their Implications for Rare Decays
Andrzej J. Buras, Robert Fleischer, Stefan Recksiegel +1
We analyse the B -> pi pi, pi K modes in the light of the most recent B-factory data, and obtain the following new results: (i) the B0 -> pi+ pi-, pi- K+ modes prefer gamma=(74+-6)…
Electroweak Penguin Hunting Through B -> pi pi, pi K and Rare K and B Decays
Andrzej J. Buras, Robert Fleischer, Stefan Recksiegel +1
The decays with significant electroweak penguin contributions show a puzzling pattern. We explore this " puzzle" through a systematic strategy. The starting point,…
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…
Extraction of m_s and |V_us| from Hadronic Tau Decays
Elvira Gamiz, Matthias Jamin, Antonio Pich +2
We review recent work to determine the strange quark mass m_s as well as the proposal to determine |V_{us}| using hadronic tau decay data. The recent update of the strange spectral…
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…
V_us and m_s from hadronic tau decays
E. Gamiz, M. Jamin, A. Pich +2
Recent experimental results on hadronic tau decays into strange particles by the OPAL collaboration are employed to determine V_us and m_s from moments of the invariant mass distri…
Waiting for Precise Measurements of K^+->pi^+ nu nu and K_L->pi^0 nu nu
Andrzej J. Buras, Felix Schwab, Selma Uhlig
In view of future plans for accurate measurements of the theoretically clean branching ratios Br(K+ -> pi+ nu nu) and Br(KL -> pi0 nu nu), that should take place in the next decade…
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 -…
B -> pi pi, New Physics in B -> pi K and Implications for Rare K and B Decays
Andrzej J. Buras, Robert Fleischer, Stefan Recksiegel +1
The measured B -> pi pi, pi K branching ratios exhibit puzzling patterns. We point out that the B -> pi pi hierarchy can be nicely accommodated in the Standard Model (SM) through n…
Finite energy sum rules for the vector current: the strange quark mass
Markus Eidemuller, Matthias Jamin, Felix Schwab
We determine the strange quark mass in the framework of finite energy sum rules from the vector current channel. The theoretical contributions are calculated in contour improved pe…
The B -> pi K Puzzle and its Relation to Rare B and K Decays
Andrzej J. Buras, Robert Fleischer, Stefan Recksiegel +1
The Standard-Model interpretation of the ratios of charged and neutral B-> pi K rates, R_c and R_n, respectively, points towards a puzzling picture. Since these observables are aff…
Strange Quark Mass Determination From Sum Rules For Hadronic Tau-Decays
Felix Schwab
We discuss the ratio of hadronic to leptonic tau-decays, that can be expanded in an operator product expansion. The sensitivity to the strange mass is increased, if only the flavor…
Determination of m_s and |V_us| from hadronic tau decays
E. Gamiz, M. Jamin, A. Pich +2
The mass of the strange quark is determined from SU(3)-breaking effects in the tau hadronic width. Compared to previous analyses, the contributions from scalar and pseudoscalar spe…