TY - JOUR

T1 - Observation of monojet events and tentative interpretation

AU - Buskulic, D.

AU - Finch, Alexander

AU - ALEPH Collaboration

PY - 1994

Y1 - 1994

N2 - A data sample corresponding to almost two million hadronic Z decays collected by the ALEPH detector at LEP has been searched for monojet events. Three events were found, in agreement with the expectation from the process , with . Two events are hadronic, the third one being an e+e− pair. All monojet masses are in excess of 3 GeV/c2, and two of the event have large transverse momenta: 18.5 and 20.3 GeV/c. These kinematic characteristics are quite unlikely in the process . The probability of their occurence increases substantially when processes involving further Z or W exchanges are taken into account, but still remains at the 5% level.

AB - A data sample corresponding to almost two million hadronic Z decays collected by the ALEPH detector at LEP has been searched for monojet events. Three events were found, in agreement with the expectation from the process , with . Two events are hadronic, the third one being an e+e− pair. All monojet masses are in excess of 3 GeV/c2, and two of the event have large transverse momenta: 18.5 and 20.3 GeV/c. These kinematic characteristics are quite unlikely in the process . The probability of their occurence increases substantially when processes involving further Z or W exchanges are taken into account, but still remains at the 5% level.

U2 - 10.1016/0370-2693(94)90619-X

DO - 10.1016/0370-2693(94)90619-X

M3 - Journal article

VL - 334

SP - 244

EP - 252

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 1-2

ER -