Search for Pair Production of a New b Quark that Decays into a Z Boson and a Bottom Quark with the ATLAS Detector
2012
Аутори
Aad, G.Borjanović, Iris
Božović-Jelisavčić, Ivanka
Agatonović-Jovin, Tatjana
Krstić, Jelena
Mamužić, Judita
Mudrinić, Mihajlo
Popović, D. S.
Sijacki, Dj.
Simić, Lj.
Vranješ, Nenad
Vranješ Milosavljević, Marija
Živković, Lada
ATLAS Collaboration (ukupan broj autora: 3041)
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
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 2.0 fb(-1) of integrated luminosity, were collected from pp collisions at root s = 7 TeV 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) LT 400 GeV that decay entirely via b - GT Z + b. In the case of a vectorlike singlet b mixing solely with the third standard model generation, masses m(b) LT 358 GeV are excluded.
Извор:
Physical Review Letters, 2012, 109, 7Финансирање / пројекти:
- ANPCyT, Argentina, YerPhI, Armenia, ARC, Australia, BMWF, Austria, ANAS, Azerbaijan, SSTC, Belarus, CNPq, FAPESP, Brazil, NSERC, NRC, CFI, Canada, CERN, CONICYT, Chile, CAS, MOST, NSFC, China, COLCIENCIAS, Colombia, MSMT CR, MPO CR, VSC CR, Czech Republic, DNRF, DNSRC, Lundbeck Foundation, Denmark, EPLANET, ERC, European Union, IN2P3-CNRS, CEA-DSM/IRFU, France, GNAS, Georgia, BMBF, Germany, DFG, HGF, MPG, AvH Foundation, Germany, GSRT, Greece, ISF, MINERVA, GIF, DIP, Benoziyo Center, Israel, INFN, Italy, MEXT, JSPS, Japan, CNRST, Morocco, FOM, NWO, Netherlands, RCN, Norway, MNiSW, Poland, GRICES, FCT, Portugal, MERYS (MECTS), Romania, MES of Russia, ROSATOM, Russian Federation, JINR, MSTD, Serbia, MSSR, Slovakia, ARRS, MVZT, Slovenia, DST/NRF, South Africa, MICINN, Spain, SRC, Wallenberg Foundation, Sweden, SER, SNSF, Cantons of Bern and Geneva, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, Royal Society and Leverhulme Trust, United Kingdom, DOE, NSF, United States of America, ICREA
DOI: 10.1103/PhysRevLett.109.071801
ISSN: 0031-9007; 1079-7114
WoS: 000307709400006
Scopus: 2-s2.0-84865251772
Колекције
Институција/група
VinčaTY - JOUR AU - Aad, G. AU - Borjanović, Iris AU - Božović-Jelisavčić, Ivanka AU - Agatonović-Jovin, Tatjana AU - Krstić, Jelena AU - Mamužić, Judita AU - Mudrinić, Mihajlo AU - Popović, D. S. AU - Sijacki, Dj. AU - Simić, Lj. AU - Vranješ, Nenad AU - Vranješ Milosavljević, Marija AU - Živković, Lada PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5007 AB - 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 2.0 fb(-1) of integrated luminosity, were collected from pp collisions at root s = 7 TeV 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) LT 400 GeV that decay entirely via b - GT Z + b. In the case of a vectorlike singlet b mixing solely with the third standard model generation, masses m(b) LT 358 GeV are excluded. T2 - Physical Review Letters T1 - Search for Pair Production of a New b Quark that Decays into a Z Boson and a Bottom Quark with the ATLAS Detector VL - 109 IS - 7 DO - 10.1103/PhysRevLett.109.071801 ER -
@article{ author = "Aad, G. and Borjanović, Iris and Božović-Jelisavčić, Ivanka and Agatonović-Jovin, Tatjana and Krstić, Jelena and Mamužić, Judita and Mudrinić, Mihajlo and Popović, D. S. and Sijacki, Dj. and Simić, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija and Živković, Lada", year = "2012", abstract = "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 2.0 fb(-1) of integrated luminosity, were collected from pp collisions at root s = 7 TeV 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) LT 400 GeV that decay entirely via b - GT Z + b. In the case of a vectorlike singlet b mixing solely with the third standard model generation, masses m(b) LT 358 GeV are excluded.", journal = "Physical Review Letters", title = "Search for Pair Production of a New b Quark that Decays into a Z Boson and a Bottom Quark with the ATLAS Detector", volume = "109", number = "7", doi = "10.1103/PhysRevLett.109.071801" }
Aad, G., Borjanović, I., Božović-Jelisavčić, I., Agatonović-Jovin, T., Krstić, J., Mamužić, J., Mudrinić, M., Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, N., Vranješ Milosavljević, M.,& Živković, L.. (2012). Search for Pair Production of a New b Quark that Decays into a Z Boson and a Bottom Quark with the ATLAS Detector. in Physical Review Letters, 109(7). https://doi.org/10.1103/PhysRevLett.109.071801
Aad G, Borjanović I, Božović-Jelisavčić I, Agatonović-Jovin T, Krstić J, Mamužić J, Mudrinić M, Popović DS, Sijacki D, Simić L, Vranješ N, Vranješ Milosavljević M, Živković L. Search for Pair Production of a New b Quark that Decays into a Z Boson and a Bottom Quark with the ATLAS Detector. in Physical Review Letters. 2012;109(7). doi:10.1103/PhysRevLett.109.071801 .
Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Agatonović-Jovin, Tatjana, Krstić, Jelena, Mamužić, Judita, Mudrinić, Mihajlo, Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, Živković, Lada, "Search for Pair Production of a New b Quark that Decays into a Z Boson and a Bottom Quark with the ATLAS Detector" in Physical Review Letters, 109, no. 7 (2012), https://doi.org/10.1103/PhysRevLett.109.071801 . .