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Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions

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2012
4749.pdf (1.886Mb)
Authors
Aad, G.
Borjanović, Iris
Božović-Jelisavčić, Ivanka
Agatonović-Jovin, Tatjana
Krstić, Jelena
Mamužić, Judita
Mudrinić, Mihajlo
Popović, D. S.
Reljić, D.
Sijacki, Dj.
Simić, Lj.
Vranješ, Nenad
Vranješ Milosavljević, Marija
ATLAS Collaboration (ukupan broj autora: 3016)
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Abstract
Results of three searches are presented for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons, e or mu. The analysis uses a data sample collected during the first half of 2011 that corresponds to a total integrated luminosity of 1 fb(-1) of root s = 7 TeV proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider. Opposite-sign and same-sign dilepton events are separately studied, with no deviations from the Standard Model expectation observed. Additionally, in opposite-sign events, a search is made for an excess of same-flavour over different-flavour lepton pairs. Effective production cross sections in excess of 9.9 fb for opposite-sign events containing supersymmetric particles with missing transverse momentum greater than 250 GeV are excluded at 95% CL For same-sign events containing supersymmetric particles with missing transverse momentum greater than 100 GeV, effectiv...e production cross sections in excess of 14.8 fb are excluded at 95% CL The latter limit is interpreted in a simplified electroweak gaugino production model excluding chargino masses up to 200 GeV, under the assumption that slepton decay is dominant. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.

Source:
Physics Letters B, 2012, 709, 3, 137-157
Funding / projects:
  • ANPCyT, Argentina, YerPhI, Armenia, ARC, Australia, BMWF, Austria, ANAS, Azerbaijan, SSTC, Belarus, CNPq Brazil, FAPESP, Brazil, NSERC, Canada, NRC, Canada, CFI, Canada, CERN, Chile, CONICYT, Chile, NSFC, China, CAS, China, MOST, China, COLCIENCIAS, Colombia, MSMT CR, Czech Republic, MPO CR, Czech Republic, VSC CR, Czech Republic, DNRF, Denmark, DNSRC, Denmark, Lundbeck Foundation, Denmark, ARTEMIS, European Union, IN2P3-CNRS, France, CEA-DSM/IRFU, France, GNAS, Georgia, BMBF, Germany, DFG, Germany, HGF, Germany, MPG, Germany, AvH Foundation, Germany, GSRT, Greece, ISF, Israel, MINERVA, Israel, GIF, Israel, DIP, Israel, Benoziyo Center, Israel, INFN, Italy, MEXT, Japan, JSPS, Japan, CNRST, Morocco, FOM, Netherlands, NWO, Netherlands, RCN, Norway, MNiSW, Poland, GRICES, Portugal, FCT, Portugal, MERYS (MECTS), Romania, MES of Russia, ROSATOM, Russian Federation, JINR, Serbia, MSTD, Serbia, MSSR, Slovakia, ARRS, Slovenia, MVZT, Slovenia, DST/NRF, South Africa, MICINN, Spain, SRC, Sweden, Wallenberg Foundation, Sweden, SER, Switzerland, SNSF, Switzerland, Cantons of Bern, Switzerland, Geneva, Switzerland, NSC, Taiwan, TAEK, Turkey, STFC, United Kingdom, Royal Society, United Kingdom, Leverhulme Trust, United Kingdom, DOE, United States of America, NSF, United States of America

DOI: 10.1016/j.physletb.2012.01.076

ISSN: 0370-2693; 1873-2445

WoS: 000301758800007

Scopus: 2-s2.0-84862777925
[ Google Scholar ]
64
60
URI
https://vinar.vin.bg.ac.rs/handle/123456789/4753
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  • WoS Import
Institution/Community
Vinča
TY  - 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  - Reljić, D.
AU  - Sijacki, Dj.
AU  - Simić, Lj.
AU  - Vranješ, Nenad
AU  - Vranješ Milosavljević, Marija
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4753
AB  - Results of three searches are presented for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons, e or mu. The analysis uses a data sample collected during the first half of 2011 that corresponds to a total integrated luminosity of 1 fb(-1) of root s = 7 TeV proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider. Opposite-sign and same-sign dilepton events are separately studied, with no deviations from the Standard Model expectation observed. Additionally, in opposite-sign events, a search is made for an excess of same-flavour over different-flavour lepton pairs. Effective production cross sections in excess of 9.9 fb for opposite-sign events containing supersymmetric particles with missing transverse momentum greater than 250 GeV are excluded at 95% CL For same-sign events containing supersymmetric particles with missing transverse momentum greater than 100 GeV, effective production cross sections in excess of 14.8 fb are excluded at 95% CL The latter limit is interpreted in a simplified electroweak gaugino production model excluding chargino masses up to 200 GeV, under the assumption that slepton decay is dominant. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
T2  - Physics Letters B
T1  - Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions
VL  - 709
IS  - 3
SP  - 137
EP  - 157
DO  - 10.1016/j.physletb.2012.01.076
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 Reljić, D. and Sijacki, Dj. and Simić, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija",
year = "2012",
abstract = "Results of three searches are presented for the production of supersymmetric particles decaying into final states with missing transverse momentum and exactly two isolated leptons, e or mu. The analysis uses a data sample collected during the first half of 2011 that corresponds to a total integrated luminosity of 1 fb(-1) of root s = 7 TeV proton-proton collisions recorded with the ATLAS detector at the Large Hadron Collider. Opposite-sign and same-sign dilepton events are separately studied, with no deviations from the Standard Model expectation observed. Additionally, in opposite-sign events, a search is made for an excess of same-flavour over different-flavour lepton pairs. Effective production cross sections in excess of 9.9 fb for opposite-sign events containing supersymmetric particles with missing transverse momentum greater than 250 GeV are excluded at 95% CL For same-sign events containing supersymmetric particles with missing transverse momentum greater than 100 GeV, effective production cross sections in excess of 14.8 fb are excluded at 95% CL The latter limit is interpreted in a simplified electroweak gaugino production model excluding chargino masses up to 200 GeV, under the assumption that slepton decay is dominant. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.",
journal = "Physics Letters B",
title = "Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions",
volume = "709",
number = "3",
pages = "137-157",
doi = "10.1016/j.physletb.2012.01.076"
}
Aad, G., Borjanović, I., Božović-Jelisavčić, I., Agatonović-Jovin, T., Krstić, J., Mamužić, J., Mudrinić, M., Popović, D. S., Reljić, D., Sijacki, Dj., Simić, Lj., Vranješ, N.,& Vranješ Milosavljević, M.. (2012). Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions. in Physics Letters B, 709(3), 137-157.
https://doi.org/10.1016/j.physletb.2012.01.076
Aad G, Borjanović I, Božović-Jelisavčić I, Agatonović-Jovin T, Krstić J, Mamužić J, Mudrinić M, Popović DS, Reljić D, Sijacki D, Simić L, Vranješ N, Vranješ Milosavljević M. Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions. in Physics Letters B. 2012;709(3):137-157.
doi:10.1016/j.physletb.2012.01.076 .
Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Agatonović-Jovin, Tatjana, Krstić, Jelena, Mamužić, Judita, Mudrinić, Mihajlo, Popović, D. S., Reljić, D., Sijacki, Dj., Simić, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, "Searches for supersymmetry with the ATLAS detector using final states with two leptons and missing transverse momentum in root s=7 TeV proton-proton collisions" in Physics Letters B, 709, no. 3 (2012):137-157,
https://doi.org/10.1016/j.physletb.2012.01.076 . .

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