P o S ( C D 0 9 ) 0 0 9 Rare pion and muon decay measurements : the PIBETA and PEN experiments

D. Počanić∗,a M. Bychkov,a B.A. VanDevender,a† L.P. Alonzi,a V.A. Baranov,b W. Bertl,c Yu.M. Bystritsky,b E. Frlež,a N.V. Khomutov,b A.S. Korenchenko,b S.M. Korenchenko,b M. Korolija,d T. Kozlowski,e N.P. Kravchuk,b N.A. Kuchinsky,b D. Mekterović,d D. Mzhavia,b f A. Palladino,ac P. Robmann,g A.M. Rozhdestvensky,b U. Straumann,g I. Supek,d P. Truöl,g A. van der Schaaf,g E.P. Velicheva,b V.P. Volnykhb aDepartment of Physics, University of Virginia, Charlottesville, VA 22904-4714, USA bJoint Institute for Nuclear Research, RU-141980 Dubna, Russia cPaul Scherrer Institut, Villigen PSI, CH-5232, Switzerland dInstitut “Rudjer Bošković,” HR-10000 Zagreb, Croatia eInstytut Problemów Jądrowych im. Andrzeja Sołtana, PL-05-400 Świerk, Poland f Institute for High Energy Physics, Tbilisi State University, GUS-380086 Tbilisi, Georgia gPhysik-Institut, Universität Zürich, CH-8057 Zürich, Switzerland