Measurement of the top quark-pair production cross section with ATLAS in pp collisions at root s=7 TeV
Нема приказа
Аутори
Aad, G.Borjanović, Iris
Božović-Jelisavčić, Ivanka
Krstić, Jelena
Mamužić, Judita
Mudrinić, Mihajlo
Popović, D. S.
Reljić, D.
Sijacki, Dj.
Simić, Lj.
Vranješ, Nenad
Vranješ Milosavljević, Marija
Živković, Lada
ATLAS Collaboration (ukupan broj autora: 3086)
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A measurement of the production cross-section for top quark pairs (t (t) over bar) in pp collisions at root s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in two different topologies: single lepton (electron e or muon mu) with large missing transverse energy and at least four jets, and dilepton (ee, mu mu or e mu) with large missing transverse energy and at least two jets. In a data sample of 2.9 pb(-1), 37 candidate events are observed in the single-lepton topology and 9 events in the dilepton topology. The corresponding expected backgrounds from non-t (t) over bar Standard Model processes are estimated using data-driven methods and determined to be 12.2 +/- 3.9 events and 2.5 +/- 0.6 events, respectively. The kinematic properties of the selected events are consistent with SM t (t) over bar production. The inclusive top quark pair production cross-section is measured to be sigma(t (t) over bar) = 145 +/- 31 (stat.)(...-27)(+42) (syst.) pb. The measurement agrees with perturbative QCD calculations.
Извор:
European Physical Journal C. Particles and Fields, 2011, 71, 3Финансирање / 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, MEYS (MSMT), MPO, CCRC, Czech Republic, DNRF, DNSRC, Lundbeck Foundation, Denmark, ARTEMIS, European Union, IN2P3-CNRS, CEA-DSM/IRFU, France, GNAS, Georgia, BMBF, Germany, DFG, HGF, MPG, AvH Foundation, Germany, GSRT, Greece, ISF, 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, Geneva, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, Royal Society, Leverhulme Trust, United Kingdom, DOE, NSF, United States of America
DOI: 10.1140/epjc/s10052-011-1577-6
ISSN: 1434-6044; 1434-6052
WoS: 000291698400004
Scopus: 2-s2.0-84876438744
Колекције
Институција/група
VinčaTY - JOUR AU - Aad, G. AU - Borjanović, Iris AU - Božović-Jelisavčić, Ivanka AU - Krstić, Jelena AU - Mamužić, Judita AU - Mudrinić, Mihajlo AU - Popović, D. S. AU - Reljić, D. AU - Sijacki, Dj. AU - Simić, Lj. AU - Vranješ, Nenad AU - Vranješ Milosavljević, Marija AU - Živković, Lada PY - 2011 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4388 AB - A measurement of the production cross-section for top quark pairs (t (t) over bar) in pp collisions at root s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in two different topologies: single lepton (electron e or muon mu) with large missing transverse energy and at least four jets, and dilepton (ee, mu mu or e mu) with large missing transverse energy and at least two jets. In a data sample of 2.9 pb(-1), 37 candidate events are observed in the single-lepton topology and 9 events in the dilepton topology. The corresponding expected backgrounds from non-t (t) over bar Standard Model processes are estimated using data-driven methods and determined to be 12.2 +/- 3.9 events and 2.5 +/- 0.6 events, respectively. The kinematic properties of the selected events are consistent with SM t (t) over bar production. The inclusive top quark pair production cross-section is measured to be sigma(t (t) over bar) = 145 +/- 31 (stat.)(-27)(+42) (syst.) pb. The measurement agrees with perturbative QCD calculations. T2 - European Physical Journal C. Particles and Fields T1 - Measurement of the top quark-pair production cross section with ATLAS in pp collisions at root s=7 TeV VL - 71 IS - 3 DO - 10.1140/epjc/s10052-011-1577-6 ER -
@article{ author = "Aad, G. and Borjanović, Iris and Božović-Jelisavčić, Ivanka and Krstić, Jelena and Mamužić, Judita and Mudrinić, Mihajlo and Popović, D. S. and Reljić, D. and Sijacki, Dj. and Simić, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija and Živković, Lada", year = "2011", abstract = "A measurement of the production cross-section for top quark pairs (t (t) over bar) in pp collisions at root s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in two different topologies: single lepton (electron e or muon mu) with large missing transverse energy and at least four jets, and dilepton (ee, mu mu or e mu) with large missing transverse energy and at least two jets. In a data sample of 2.9 pb(-1), 37 candidate events are observed in the single-lepton topology and 9 events in the dilepton topology. The corresponding expected backgrounds from non-t (t) over bar Standard Model processes are estimated using data-driven methods and determined to be 12.2 +/- 3.9 events and 2.5 +/- 0.6 events, respectively. The kinematic properties of the selected events are consistent with SM t (t) over bar production. The inclusive top quark pair production cross-section is measured to be sigma(t (t) over bar) = 145 +/- 31 (stat.)(-27)(+42) (syst.) pb. The measurement agrees with perturbative QCD calculations.", journal = "European Physical Journal C. Particles and Fields", title = "Measurement of the top quark-pair production cross section with ATLAS in pp collisions at root s=7 TeV", volume = "71", number = "3", doi = "10.1140/epjc/s10052-011-1577-6" }
Aad, G., Borjanović, I., Božović-Jelisavčić, I., Krstić, J., Mamužić, J., Mudrinić, M., Popović, D. S., Reljić, D., Sijacki, Dj., Simić, Lj., Vranješ, N., Vranješ Milosavljević, M.,& Živković, L.. (2011). Measurement of the top quark-pair production cross section with ATLAS in pp collisions at root s=7 TeV. in European Physical Journal C. Particles and Fields, 71(3). https://doi.org/10.1140/epjc/s10052-011-1577-6
Aad G, Borjanović I, Božović-Jelisavčić I, Krstić J, Mamužić J, Mudrinić M, Popović DS, Reljić D, Sijacki D, Simić L, Vranješ N, Vranješ Milosavljević M, Živković L. Measurement of the top quark-pair production cross section with ATLAS in pp collisions at root s=7 TeV. in European Physical Journal C. Particles and Fields. 2011;71(3). doi:10.1140/epjc/s10052-011-1577-6 .
Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Krstić, Jelena, Mamužić, Judita, Mudrinić, Mihajlo, Popović, D. S., Reljić, D., Sijacki, Dj., Simić, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, Živković, Lada, "Measurement of the top quark-pair production cross section with ATLAS in pp collisions at root s=7 TeV" in European Physical Journal C. Particles and Fields, 71, no. 3 (2011), https://doi.org/10.1140/epjc/s10052-011-1577-6 . .