Eur. Phys. J. C (2008) 57: 13-182
https://doi.org/10.1140/epjc/s10052-008-0715-2

Review

Flavor physics of leptons and dipole moments

¹ National Institute for Chemical Physics and Biophysics, 10143, Tallinn, Estonia
² Physik-Institut der Universität Zürich, 8057, Zürich, Switzerland
³ Physics Department, University of Notre Dame du Lac, Notre Dame, IN, 46556, USA
⁴ Physics Department, CERN, 1211, Geneva, Switzerland
⁵ Brookhaven National Laboratory, Upton, NY, 11973-5000, USA
⁶ Institute for Particle Physics Phenomenology, Durham University, Durham, DH1 3LE, UK
⁷ II. Institute for Theoretical Physics, University of Hamburg, 22761, Hamburg, Germany
⁸ Max-Planck-Institut für Physik, 80805, München, Germany
⁹ Departamento de Fisica Teorica and IFT/CSIC-UAM, Universidad Autonoma de Madrid, 28049, Madrid, Spain
¹⁰ J. Stefan Institute, 1000, Ljubljana, Slovenia
¹¹ Department of Physics, University of Victoria, Victoria, BC, V8W 3P6, Canada
¹² Physics Department, TU Munich, 85748, Garching, Germany
¹³ Università degli Studi di Cagliari and INFN Cagliari, 09042, Monserrato, (CA), Italy
¹⁴ Departamento de Física and Centro de Física Teórica de Partículas (CFTP), Instituto Superior Técnico (IST), 1049-001, Lisboa, Portugal
¹⁵ Department of Physics and Astronomy, University of British Columbia, TRIUMF, Vancouver, BC, V6T 2A3, Canada
¹⁶ SISSA and INFN, Sezione di Trieste, 34013, Trieste, Italy
¹⁷ Departament de Física Teòrica, Universitat de València-CSIC, 46100, Burjassot, Spain
¹⁸ Dipartimento di Fisica ‘G. Galilei’ and INFN, 35131, Padova, Italy
¹⁹ Institute of Theoretical Physics, University of Warsaw, 00-681, Warsaw, Poland
²⁰ IPNL, CNRS, Université Lyon-1, 69622, Villeurbanne Cedex, France
²¹ Physics Department, Yale University, New Haven, CO, 06520, USA
²² School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK
²³ Facultad de Fisica, Pontificia Universita Catolica de Chile, Santiago, 22, Chile
²⁴ Department of Physics, ETH Honggerberg, 8093, Zurich, Switzerland
²⁵ INFN and Dipartimento di Fisica, Universita di Pisa, 56127, Pisa, Italy
²⁶ Theoretical Physics Division, Physical Research Lab., Navrangpura, Ahmedabad, 380 009, India
²⁷ III. Physikalisches Institut B, RWTH Aachen, 52056, Aachen, Germany
²⁸ Scuola Normale Superiore, 56100, Pisa, Italy
²⁹ Department of Physics, High Energy Physics, University of Wisconsin, Madison, WI, 53706, USA
³⁰ Department of Physics and Astronomy, University of Sussex, Falmer, Brighton, BN1 9QH, UK
³¹ ICRR, University of Tokyo, Tokyo, Japan
³² Physics Division, Argonne National Laboratory, Argonne, IL, 60439-4843, USA
³³ Department of Physics, University of Helsinki, and Helsinki Institute of Physics, 00014, Helsinki, Finland
³⁴ Theory Group, DESY, 22603, Hamburg, Germany
³⁵ Physics Department, University of Oregon, Eugene, OR, USA
³⁶ NIKHEF, 1098, SJ Amsterdam, The Netherlands
³⁷ Department of Physics, University of Zagreb, 10002, Zagreb, Croatia
³⁸ IPNS, KEK, Ibaraki, 305-0801, Japan
³⁹ Laboratori Nazionali di Frascati, INFN, 00044, Frascati, Italy
⁴⁰ School of Physics and Astronomy, University of Southampton, SO17 1BJ, Southampton, UK
⁴¹ Paul Scherrer Institut, 5232, Villigen, Switzerland
⁴² Petersburg Nuclear Physics Institute, Gatchina, 188300, Russia
⁴³ Department of Physics and Astronomy, University of California, Riverside, CA, 92521, USA
⁴⁴ Laboratoire de Physique Théorique, UMR 8627 Université de Paris-Sud XI, 91405, Orsay Cedex, France
⁴⁵ ICEPP, University of Tokyo, Tokyo, 113-0033, Japan
⁴⁶ Università dell’Aquila and INFN LNGS, 67010, L’Aquila, Italy
⁴⁷ Kernfysisch Versneller Instituut (KVI), 9747 AA, Groningen, The Netherlands
⁴⁸ University of Rome “Tor Vergata” and INFN Sezione Roma II, 00133, Roma, Italy
⁴⁹ Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 1784, Sofia, Bulgaria
⁵⁰ INFN and Dipartimento di Fisica, Università del Salento, 73100, Lecce, Italy
⁵¹ Department of Physics and Astronomy, University of Victoria, Victoria, BC, V8P 5C2, Canada
⁵² Department of Physics, Boston University, Boston, MA, 02215, USA
⁵³ Institute for Theoretical Physics and Astrophysics, University of Würzburg, 97074, Würzburg, Germany
⁵⁴ International Centre for Theoretical Physics, Trieste, Italy
⁵⁵ Department of Physics, University of Murcia, 30100, Murcia, Spain
⁵⁶ Physics Department, University of Michigan, Ann Arbor, MI, 48109, USA
⁵⁷ Centre for High Energy Physics, Indian Institute of Science, Bangalore, 560012, India

^* e-mail: michelangelo.mangano@cern.ch

Received: 19 February 2008
Revised: 12 August 2008
Published online: 12 November 2008

Abstract

This chapter of the report of the “Flavor in the era of the LHC” Workshop discusses the theoretical, phenomenological and experimental issues related to flavor phenomena in the charged lepton sector and in flavor conserving CP-violating processes. We review the current experimental limits and the main theoretical models for the flavor structure of fundamental particles. We analyze the phenomenological consequences of the available data, setting constraints on explicit models beyond the standard model, presenting benchmarks for the discovery potential of forthcoming measurements both at the LHC and at low energy, and exploring options for possible future experiments.