Title of article
Search for excited leptons in e+e− collisions at s=161 GeV
Author/Authors
DELPHI Collaboration، نويسنده , , P. Abreu، نويسنده , , W. Adam، نويسنده , , T. Adye، نويسنده , , I. Ajinenko، نويسنده , , G.D. Alekseev، نويسنده , , R. Alemany، نويسنده , , P.P. Allport، نويسنده , , S. Almehed، نويسنده , , U. Amaldi، نويسنده , , S. Amato، نويسنده , , A. Andreazza، نويسنده , , M.L. Andrieux، نويسنده , , P. Antilogus، نويسنده , , W-D. Apel، نويسنده , , B. ?sman، نويسنده , , J-E. Augustin، نويسنده , , A. Augustinus، نويسنده , , P. Baillon، نويسنده , , P. Bambade، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1996
Pages
16
From page
245
To page
260
Abstract
A search with the DELPHI detector at LEP for excited leptons (e∗, μ∗, τ∗ and ν∗) decaying through γ, W or Z transitions is reported. The data used correspond to an integrated luminosity of 10 pb−1 at an e+e− centre-of-mass energy of 161 GeV. The search for pair produced excited leptons established the limits me∗ > 79.6 GeV/c2, mμ∗ > 79.6 GeV/c2, mτ∗ > 79.4 GeV/c2 and mν∗ > 56.4 GeV/c2 at 95% confidence level, assuming that the SU(2) and U(1) couplings of excited leptons are in the same ratio as for normal leptons and considering both left and right-handed components. Limits corresponding to other assumptions are also given. The search for single excited lepton production established upper limits on the ratio λmℓ∗ of the coupling of the excited lepton to its mass.
Journal title
PHYSICS LETTERS B
Serial Year
1996
Journal title
PHYSICS LETTERS B
Record number
907820
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