Implications of a very light pseudoscalar boson on lepton flavor violation

Journal Article · Thu Dec 01 04:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.117701· OSTI ID:20774475

Cordero-Cid, Adriana; Tavares-Velasco, G; Toscano, J J ^[1]

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1. Facultad de Ciencias Fisico Matematicas, Benemerita Universidad Autonoma de Puebla, Apartado Postal 1152, Puebla, Puebla (Mexico)

A long-lived very light pseudoscalar boson would favor lepton flavor violating transitions of charged leptons. Its implications on the l{sub i}{yields}l{sub j}{gamma}{gamma} and l{sub i}{yields}l{sub j}e{sup +}e{sup -} transitions are investigated. Assuming that 2m{sub e}<m{sub {phi}}<m{sub {mu}}, it is found that the inequality B(l{sub i}{yields}l{sub j}{gamma}{gamma})<B(l{sub i}{yields}l{sub j}e{sup +}e{sup -}) holds. The experimental constraints on the decays l{sub i}{yields}l{sub j}{gamma}, l{sub i}{yields}l{sub j}l{sub k}l{sub k}, and l{sub i}{yields}l{sub j}{gamma}{gamma} are used to bound the {phi}l{sub i}l{sub j} couplings.

• OSTI ID: 20774475
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRONS
FLAVOR MODEL
INTERMEDIATE BOSONS
MUONS
PARTICLE DECAY
PHOTONS
POSITRONS
REST MASS