Evidence for gluon interference in hadronic Z decay
We present evidence for soft gluon interference, as required by QCD. This interference is expected to manifest itself in an angular ordering of the gluons radiated within a jet. Using hadronic decays of the Z boson in the L3 detector at LEP, we compare variables sensitive to such an angular ordering...
| Autores: | , |
|---|---|
| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 1995 |
| País: | Argentina |
| Recursos: | Universidad Nacional de La Plata |
| Repositório: | SEDICI (UNLP) |
| Idioma: | inglês |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/80929 |
| Acesso em linha: | http://sedici.unlp.edu.ar/handle/10915/80929 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Ciencias Exactas Física gluons quantum chromodynamics Z boson L3 detector large electron positron collider |
| Resumo: | We present evidence for soft gluon interference, as required by QCD. This interference is expected to manifest itself in an angular ordering of the gluons radiated within a jet. Using hadronic decays of the Z boson in the L3 detector at LEP, we compare variables sensitive to such an angular ordering, namely the energy-energy correlation asymmetry and the newly introduced particle- particle correlation asymmetry, with the predictions of various parton shower models. Only those models which incorporate the expected interference agree with the data. |
|---|