Journal
PHYSICS LETTERS B
Volume 674, Issue 4-5, Pages 295-298Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2009.03.041
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Funding
- Japan Society for the Promotion of Science [18034004]
- Grants-in-Aid for Scientific Research [18034004] Funding Source: KAKEN
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In models with extended Higgs sectors, Higgs-boson-mediated Lepton Flavour Violation (LFV) can naturally appear. We study the physics potential of an electron-photon collider on searching LFV processes e(-)gamma -> l(-)phi (l = mu, tau; phi = H, A) where H and A are extra CP even and odd Higgs bosons, respectively, in the minimal supersymmetric standard model and the effective two Higgs doublet model. The production cross section can be significantly large for the maximal allowed values of the LFV coupling constants under the current experimental data. Present experimental upper bounds on the effective LFV coupling constants would be considerably improved by searching these processes. which would be better than MEG and COMET experiments and also those at LHCb and SuperKEKB. Moreover, one can separately measure chirality of effective LFV coupling constants via these processes by selecting electron polarizations. (C) 2009 Elsevier B.V. All rights reserved.
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