The pseudoscalar meson ηb has been searched for in two-photon interactions at LEP II. The data sample corresponds to a total integrated luminosity of 617 pb−1 at centre-of-mass energies ranging from 161 to 209 GeV. Upper limits at a confidence level of 95% on the product Γγγ(ηb)×BR(ηb) are 190, 470 and 660 eV/c2 for the ηb decaying into 4, 6 and 8 charged particles, respectively.

J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, T. ALDERWEIRELD, et al. (2006). Search for ηb in two-photon collisions at LEP II with the DELPHI detector. PHYSICS LETTERS. SECTION B, 634, 340-346 [10.1016/j.physletb.2006.01.058].

Search for ηb in two-photon collisions at LEP II with the DELPHI detector

NAVARRIA, FRANCESCO LUIGI;PAIANO, SIMONE;PERROTTA, ANDREA;ROVELLI, TIZIANO;
2006

Abstract

The pseudoscalar meson ηb has been searched for in two-photon interactions at LEP II. The data sample corresponds to a total integrated luminosity of 617 pb−1 at centre-of-mass energies ranging from 161 to 209 GeV. Upper limits at a confidence level of 95% on the product Γγγ(ηb)×BR(ηb) are 190, 470 and 660 eV/c2 for the ηb decaying into 4, 6 and 8 charged particles, respectively.
2006
J. ABDALLAH, P. ABREU, W. ADAM, P. ADZIC, T. ALBRECHT, T. ALDERWEIRELD, et al. (2006). Search for ηb in two-photon collisions at LEP II with the DELPHI detector. PHYSICS LETTERS. SECTION B, 634, 340-346 [10.1016/j.physletb.2006.01.058].
J. ABDALLAH; P. ABREU; W. ADAM; P. ADZIC; T. ALBRECHT; T. ALDERWEIRELD; R. ALEMANY-FERNANDEZ; T. ALLMENDINGER; P.P. ALLPORT; U. AMALDI; N. AMAPANE; S....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/24160
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