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 e...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00319007_v109_n7_p_Aad |
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todo:paper_00319007_v109_n7_p_Aad2023-10-03T14:42:22Z Search for pair production of a new b′ quark that decays into a Z boson and a bottom quark with the ATLAS detector Aad, G. ATLAS detectors Bottom quarks Confidence levels Integrated luminosity Large Hadron Collider Mass distribution Pair production Standard model Transverse momenta Z Bosons Bosons Photons Tellurium compounds High energy physics 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 m b′ <358GeV are excluded. © 2012 CERN. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v109_n7_p_Aad |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
ATLAS detectors Bottom quarks Confidence levels Integrated luminosity Large Hadron Collider Mass distribution Pair production Standard model Transverse momenta Z Bosons Bosons Photons Tellurium compounds High energy physics |
| spellingShingle |
ATLAS detectors Bottom quarks Confidence levels Integrated luminosity Large Hadron Collider Mass distribution Pair production Standard model Transverse momenta Z Bosons Bosons Photons Tellurium compounds High energy physics Aad, G. 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 |
ATLAS detectors Bottom quarks Confidence levels Integrated luminosity Large Hadron Collider Mass distribution Pair production Standard model Transverse momenta Z Bosons Bosons Photons Tellurium compounds High energy physics |
| 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 m b′ <358GeV are excluded. © 2012 CERN. |
| format |
JOUR |
| author |
Aad, G. |
| author_facet |
Aad, G. |
| author_sort |
Aad, G. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_00319007_v109_n7_p_Aad |
| work_keys_str_mv |
AT aadg searchforpairproductionofanewbquarkthatdecaysintoazbosonandabottomquarkwiththeatlasdetector |
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1782025729549008896 |