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 - A search for monojet events produced by virtual Z0 bosons in e+e− annihalation at petra
AU - Bartel, W.
AU - Finch, Alexander
AU - JADE Collaboration
PY - 1985
Y1 - 1985
N2 - A search was performed for the associated production of two different Higgs bosons via a virtual Z0 in e+e− annihilation (e+e− → h10h20) using the JADE detector at PETRA. This was motivated by the interpretation of the monojet events observed at the CERN p collider as anomalous Z0 decays into two neutral Higgs bosons (h10 and h20), where h10 is stable and escapes detection while h20 decays into hadrons. Single- or di-jet events with large momentum imbalance are then expected at PETRA energies. No evidence for such events was found in our data; this excludes h20 masses in the range of 1 to 21 GeV with 95% CL, if the branching fraction for Z0 → h10h20 is a larger than one half that for . The possibility that the monojets could originate from supersymmetric higgsino production from Z0 decay is also examined.
AB - A search was performed for the associated production of two different Higgs bosons via a virtual Z0 in e+e− annihilation (e+e− → h10h20) using the JADE detector at PETRA. This was motivated by the interpretation of the monojet events observed at the CERN p collider as anomalous Z0 decays into two neutral Higgs bosons (h10 and h20), where h10 is stable and escapes detection while h20 decays into hadrons. Single- or di-jet events with large momentum imbalance are then expected at PETRA energies. No evidence for such events was found in our data; this excludes h20 masses in the range of 1 to 21 GeV with 95% CL, if the branching fraction for Z0 → h10h20 is a larger than one half that for . The possibility that the monojets could originate from supersymmetric higgsino production from Z0 decay is also examined.
U2 - 10.1016/0370-2693(85)90656-2
DO - 10.1016/0370-2693(85)90656-2
M3 - Journal article
VL - 155
SP - 288
EP - 294
JO - Physics Letters B
JF - Physics Letters B
SN - 0370-2693
IS - 4
ER -