Search for charmed pentaquarks in high energy anti-neutrino interactions
| Autor: | U. Kose, G. De Lellis, J. Kawada, A.M. Güler, Osamu Sato, Francesco Tramontano |
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| Přispěvatelé: | DE LELLIS, Giovanni, A. M., Guler, J., Kawada, U., Kose, O., Sato, Tramontano, Francesco |
| Rok vydání: | 2007 |
| Předmět: |
Physics
Quark Nuclear and High Energy Physics Particle physics Muon MICROSCOPES Null (mathematics) BARYON STATE Charge (physics) Function (mathematics) MASS NARROW Nuclear physics CHARGED-CURRENT INTERACTIONS NUCLEAR-EMULSIONS D-0 PRODUCTION Bound state Neutrino Factory FRAGMENTATION Neutrino PRECISION-MEASUREMENTS EMULSION CLOUD CHAMBER |
| Zdroj: | Nuclear Physics B. 763:268-282 |
| ISSN: | 0550-3213 |
| Popis: | The existence of a bound state of five quarks with c ¯ content is still controversial. In this paper we focus on weakly decaying charmed pentaquarks and show how they can be searched for in high energy anti-neutrino interactions. By analyzing 2262 charged-current interactions with a muon of positive charge in the CHORUS detector, we performed a search for Θ c 0 production. Based on the null observation, the limit of Θ c 0 production is found as a function of different Θ c 0 lifetimes. The tightest bound is σ Θ c 0 / σ ν ¯ 0.039 at 90% C.L. for Θ c 0 lifetime equal to 0.5 τ D 0 . We outline also the excellent potentiality of such a search at a neutrino factory with an emulsion detector. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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