Search for pair production of a new b′ quark that decays into a Z boson and a bottom quark with the ATLAS detector
A search is reported for the pair production of a new quark b′ with at least one b′ decaying to a Z boson and a bottom quark. The data, corresponding to 2.0fb-1 of integrated luminosity, were collected from pp collisions at √s=7TeV with the ATLAS detector at the CERN Large Hadron Collider. Using eve...
Guardado en:
| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2012
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/84157 |
| Aporte de: |
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I19-R120-10915-84157 |
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dspace |
| institution |
Universidad Nacional de La Plata |
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I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Física quark Z boson |
| spellingShingle |
Física quark Z boson Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. Search for pair production of a new b′ quark that decays into a Z boson and a bottom quark with the ATLAS detector |
| topic_facet |
Física quark Z boson |
| description |
A search is reported for the pair production of a new quark b′ with at least one b′ decaying to a Z boson and a bottom quark. The data, corresponding to 2.0fb-1 of integrated luminosity, were collected from pp collisions at √s=7TeV with the ATLAS detector at the CERN Large Hadron Collider. Using events with a b-tagged jet and a Z boson reconstructed from opposite-charge electrons, the mass distribution of large transverse momentum b′ candidates is tested for an enhancement. No evidence for a b′ signal is detected in the observed mass distribution, resulting in the exclusion at a 95% confidence level of b′ quarks with masses m b′<400GeV that decay entirely via b′→Z+b. In the case of a vectorlike singlet b′ mixing solely with the third standard model generation, masses mb′<358GeV are excluded. |
| format |
Articulo Articulo |
| author |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. |
| author_facet |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. |
| author_sort |
Anduaga, Xabier Sebastián |
| title |
Search for pair production of a new b′ quark that decays into a Z boson and a bottom quark with the ATLAS detector |
| title_short |
Search for pair production of a new b′ quark that decays into a Z boson and a bottom quark with the ATLAS detector |
| title_full |
Search for pair production of a new b′ quark that decays into a Z boson and a bottom quark with the ATLAS detector |
| title_fullStr |
Search for pair production of a new b′ quark that decays into a Z boson and a bottom quark with the ATLAS detector |
| title_full_unstemmed |
Search for pair production of a new b′ quark that decays into a Z boson and a bottom quark with the ATLAS detector |
| title_sort |
search for pair production of a new b′ quark that decays into a z boson and a bottom quark with the atlas detector |
| publishDate |
2012 |
| url |
http://sedici.unlp.edu.ar/handle/10915/84157 |
| work_keys_str_mv |
AT anduagaxabiersebastian searchforpairproductionofanewbquarkthatdecaysintoazbosonandabottomquarkwiththeatlasdetector AT dovamariateresa searchforpairproductionofanewbquarkthatdecaysintoazbosonandabottomquarkwiththeatlasdetector AT monticellifernandogabriel searchforpairproductionofanewbquarkthatdecaysintoazbosonandabottomquarkwiththeatlasdetector AT tripianamartinf searchforpairproductionofanewbquarkthatdecaysintoazbosonandabottomquarkwiththeatlasdetector |
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Repositorios |
| _version_ |
1764820488428716032 |