Z-boson production with two unobserved, back-to-back, hard photons at LEP
The double-radiative process e<sup>+</sup>e<sup>−</sup> → Zγγ → q ̄qγγ where the two hard photons escape detection at low polar angles into opposite directions, is studied in 0.62 fb<sup>−1</sup> of data collected with the L3 detector at LEP at centre-of-mass ener...
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| Autores principales: | , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2005
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/79395 |
| Aporte de: |
| Sumario: | The double-radiative process e<sup>+</sup>e<sup>−</sup> → Zγγ → q ̄qγγ where the two hard photons escape detection at low polar angles into opposite directions, is studied in 0.62 fb<sup>−1</sup> of data collected with the L3 detector at LEP at centre-of-mass energies between 188.6 and 209.2 GeV. The cross sections are measured and found to be consistent with the Standard Model expectations. |
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