https://doi.org/10.1140/epjc/s10052-008-0716-1
Review
B, D and K decays
1
Syracuse University, Syracuse, NY, USA
2
Carleton University, Ottawa, Canada
3
Durham University, IPPP, Durham, UK
4
Università di Roma La Sapienza and INFN, Rome, Italy
5
Universität Karlsruhe, Karlsruhe, Germany
6
RWTH Aachen, Aachen, Germany
7
Fermi National Accelerator Laboratory, Batavia, IL, USA
8
Queen Mary, University of London, London, UK
9
University of Notre Dame, Notre Dame, IN, USA
10
Max-Planck-Institut für Physik, München, Germany
11
Institut für Physik, Universität Dortmund, Dortmund, Germany
12
LAPP, Université de Savoie, IN2P3-CNRS, Annecy-le-Vieux, France
13
ICTP, Trieste, Italy
14
National Central University, Chung-li, Taiwan
15
University of Hawaii at Manoa, Honolulu, HI, USA
16
University of Bergen, Bergen, Norway
17
Ludwig-Maximilians-Universität München, München, Germany
18
CERN, Geneva, Switzerland
19
Technische Universität München, Garching, Germany
20
The University of Liverpool, Liverpool, UK
21
Cornell University, Ithaca, NY, USA
22
University of Florida, Gainesville, FL, USA
23
Università di Roma Tre and INFN, Rome, Italy
24
INFN, Bari, Italy
25
Università di Calabria and INFN Cosenza, Cosenza, Italy
26
LPT, CNRS/Université de Paris-Sud 11, Orsay, France
27
University of Cambridge, Cambridge, UK
28
IPNP, Charles University in Prague, Prague, Czech Republic
29
NIC, FZ Jülich and DESY Zeuthen, Jülich, Germany
30
Imperial College, London, UK
31
ETH, Zürich, Switzerland
32
PSI, Villigen, Switzerland
33
Ljubljana University and Jozef Stefan Institute, Ljubljana, Slovenia
34
Universität Siegen, Siegen, Germany
35
Università di Torino and INFN, Torino, Italy
36
University of Warwick, Coventry, UK
37
Università di Pisa, SNS and INFN, Pisa, Italy
38
University of Oxford, Oxford, UK
39
University of Ljubljana, Ljubljana, Slovenia
40
ITEP, Moscow, Russia
41
Technion, Haifa, Israel
42
Universität Zürich, Zürich, Switzerland
43
KEK and Graduate University for Advanced Studies (Sokendai), Tsukuba, Japan
44
IFCA, Santander, Spain
45
CalTech, Pasadena, CA, USA
46
SLAC, Stanford, CA, USA
47
Nagoya University, Nagoya, Japan
48
Saga University, Saga, Japan
49
SNS and INFN, Pisa, Italy
50
INFN, LNF, Frascati, Italy
51
Universität Regensburg, Regensburg, Germany
52
Institut für Hochenergiephysik, Österreichische Akademie der Wissenschaften, Wien, Austria
53
Nuclear Physics Institute, Moscow State University, Moscow, Russia
54
Warsaw University, Warsaw, Poland
55
University of Edinburgh, Edinburgh, UK
56
Rensselaer Polytechnic Institute, Troy, NY, USA
57
Skobeltsin Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia
58
Università di Genova and INFN, Genova, Italy
59
Wayne State University, Detroit, MI, USA
60
Ecole Polytechnique, CNRS, Palaiseau, France
61
Università di Pavia and INFN, Pavia, Italy
62
Université de Clermont-Ferrand, Clermont-Ferrand, France
63
Enrico Fermi Institute, University of Chicago, Chicago, IL, USA
64
Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
65
Universitat Autonoma de Barcelona, IFAE, Barcelona, Spain
66
LAPTH, Annecy-le-Vieux, France
67
Universität Bern, Bern, Switzerland
68
Lancaster University, Lancaster, UK
69
Brookhaven National Laboratory, Upton, NY, USA
70
Universität Heidelberg, Heidelberg, Germany
71
LAL, IN2P3-CNRS and Université de Paris-Sud, Orsay, France
72
Università di Bologna and INFN, Bologna, Italy
73
Universität Hamburg, Hamburg, Germany
* e-mail: f.muheim@ed.ac.uk
Received:
19
February
2008
Revised:
15
August
2008
Published online:
12
November
2008
The present report documents the results of Working Group 2: B, D and K decays, of the workshop on Flavor in the Era of the LHC, held at CERN from November 2005 through March 2007.
With the advent of the LHC, we will be able to probe New Physics (NP) up to energy scales almost one order of magnitude larger than it has been possible with present accelerator facilities. While direct detection of new particles will be the main avenue to establish the presence of NP at the LHC, indirect searches will provide precious complementary information, since most probably it will not be possible to measure the full spectrum of new particles and their couplings through direct production. In particular, precision measurements and computations in the realm of flavor physics are expected to play a key role in constraining the unknown parameters of the Lagrangian of any NP model emerging from direct searches at the LHC.
The aim of Working Group 2 was twofold: on the one hand, to provide a coherent up-to-date picture of the status of flavor physics before the start of the LHC; on the other hand, to initiate activities on the path towards integrating information on NP from high-p T and flavor data.
This report is organized as follows: in Sect. 1, we give an overview of NP models, focusing on a few examples that have been discussed in some detail during the workshop, with a short description of the available computational tools for flavor observables in NP models. Section 2 contains a concise discussion of the main theoretical problem in flavor physics: the evaluation of the relevant hadronic matrix elements for weak decays. Section 3 contains a detailed discussion of NP effects in a set of flavor observables that we identified as “benchmark channels” for NP searches. The experimental prospects for flavor physics at future facilities are discussed in Sect. 4. Finally, Sect. 5 contains some assessments on the work done at the workshop and the prospects for future developments.
© Springer-Verlag , 2008