Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Study of fermion pair production in $e^+ e^-$ collisions at 130-GeV to 183-GeV
AU - ALEPH Collaboration, The
AU - Barate, R.
AU - Betteridge, Andrew
AU - Bowdery, Christopher
AU - Colrain, Paul
AU - Finch, Alexander
AU - Foster, Frank
AU - Hughes, Gareth
AU - Jones, Roger
AU - Williams, Mark
PY - 2000/1
Y1 - 2000/1
N2 - The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e+e− collisions at centre-of-mass energies from 130 to 183 GeV are presented. Results for e+e− , μ+μ− , τ+τ− , qq¯ , bb¯ and cc¯ production show no significant deviation from the Standard Model predictions. This enables constraints to be set upon physics beyond the Standard Model such as four-fermion contact interactions, leptoquarks, Z′ bosons and R-parity violating squarks and sneutrinos. Limits on the energy scale Λ of e+e−ff¯ contact interactions are typically in the range from 2 to 10 TeV. Limits on R-parity violating sneutrinos reach masses of a few hundred GeV/ c2 for large values of their Yukawa couplings.
AB - The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e+e− collisions at centre-of-mass energies from 130 to 183 GeV are presented. Results for e+e− , μ+μ− , τ+τ− , qq¯ , bb¯ and cc¯ production show no significant deviation from the Standard Model predictions. This enables constraints to be set upon physics beyond the Standard Model such as four-fermion contact interactions, leptoquarks, Z′ bosons and R-parity violating squarks and sneutrinos. Limits on the energy scale Λ of e+e−ff¯ contact interactions are typically in the range from 2 to 10 TeV. Limits on R-parity violating sneutrinos reach masses of a few hundred GeV/ c2 for large values of their Yukawa couplings.
U2 - 10.1007/s100529900223
DO - 10.1007/s100529900223
M3 - Journal article
VL - 12
SP - 183
EP - 207
JO - The European Physical Journal C (EPJ C) - Particles and Fields
JF - The European Physical Journal C (EPJ C) - Particles and Fields
SN - 1434-6052
IS - 2
ER -