Searches for excited fermions at HERA
| Autor: | Zhiqing Philippe Zhang |
|---|---|
| Přispěvatelé: | Starita, Sabine, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1 |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Physics
Particle physics [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex] Excited state High Energy Physics::Lattice High Energy Physics::Phenomenology [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] High Energy Physics::Experiment Fermion HERA 7. Clean energy |
| Zdroj: | European Physical Society Europhysics Conference on High Energy Physics (2009). European Physical Society Europhysics Conference on High Energy Physics European Physical Society Europhysics Conference on High Energy PhysicsEuropean Physical Society Europhysics Conference in High Energy Physics, EPS-HEP 2009, Krakow, Poland, 2009-07-16-2009-07-22 Proceedings of the EPS Europhysics Conference on HEP 2009 2009 Europhysics Conference on High Energy Physics (EPS HEP 2009) 2009 Europhysics Conference on High Energy Physics (EPS HEP 2009), Jul 2009, Krakow, Poland. pp.270 European Physical Society Europhysics Conference in High Energy Physics, EPS-HEP 2009, Krakow, Poland, 2009-07-16-2009-07-22 |
| Popis: | International audience; Searches for excited electrons, excited neutrinos and excited quarks are perfomed using the full $e^{\pm}p$ data sample collected by the H1 experiment at HERA, corresponding to a total luminosity of 475 pb$^{-1}$. The electroweak decays of excited fermions into standard model fernions and $\gamma$, $Z$ or $W$ bosons are considered. No evidence for excited fermion production is found. Mass dependent exclusion limits on excited fermion production cross sections and on the ratio $f/{\Lambda}$ of the coupling to the compositeness scale are derived within gauge mediated models. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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