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Gronau, Barbara

doi:10.1007/978-3-476-00035-4_8

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“…H + M (q) L 2, and the factor of BB q f 2 B q involving a 'bag' parameter and the B q decay constant defined in analogy to (113) arises from the parametrization of the hadronic matrix element of the ( bq) V−A ( bq) V−A operator of the low-energy effective Hamiltonian describing B 0 q -B0 q mixing. Looking at (199), we see that knowledge of these non-perturbative hadronic parameters, which typically comes from lattice [12,173] or QCD sum-rule calculations [174], allows us to determine |V td |, which can then be converted into the UT side R t with the help of (19), as |V cb | = Aλ 2 can be determined through semi-leptonic B decays [12]. On the other hand, the Wolfenstein expansion allows us also to derive the relation…”

Section: Preliminariesmentioning

confidence: 99%

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Highlights of the B-physics landscape

Fleischer¹

2006

J. Phys. G: Nucl. Part. Phys.

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The exploration of the quark-flavour sector of the Standard Model is one of the hot topics in particle physics of this decade. In these studies, which show a fruitful interplay between theory and experiment, the B-meson system offers a particularly interesting laboratory. After giving an introduction to quark-flavour mixing and CP violation as well as to the theoretical tools to deal with non-leptonic B decays, we discuss popular avenues for new physics to enter the roadmap of quark-flavour physics. This allows us to have a detailed look at the B-factory benchmark modes B 0 d → J/ψK S , B 0 d → φK S and B 0 d → π + π − , with a particular emphasis of the impact of new physics. We then perform an analysis of the B → πK puzzle, which may indicate new sources of CP violation in the electroweak penguin sector, and discuss its implications for rare B and K decays. The next topic is given by b → d penguin processes, which are now starting to become accessible at the B factories, thereby representing a new territory of the B-physics landscape. Finally, we discuss the prospects for B-decay studies at the Large Hadron Collider, where the B 0 s -meson system plays an outstanding rôle.

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Section: Preliminariesmentioning

confidence: 99%

“…For textbooks dealing with CP violation, the reader is referred to [15][16][17], while a selection of alternative recent reviews can be found in [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Highlights of the B-physics landscape

Fleischer¹

2006

J. Phys. G: Nucl. Part. Phys.

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Highlights of the B-physics landscape

Highlights of the B-physics landscape

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