TY  - JOUR
AU  - Aad, G.
AU  - Borjanović, Iris
AU  - Božović-Jelisavčić, Ivanka
AU  - Ćirković, Predrag
AU  - Agatonović-Jovin, Tatjana
AU  - Krstić, Jelena
AU  - Mamužić, Judita
AU  - Milutinović-Dumbelović, Gordana
AU  - Popović, D. S.
AU  - Sijacki, Dj.
AU  - Simica, Lj.
AU  - Vranješ, Nenad
AU  - Vranješ Milosavljević, Marija
AU  - Živković, Lada
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5415
AB  - In several extensions of the Standard Model, the top quark can decay into a bottom quark and a light charged Higgs boson H+, t - GT bH(+), in addition to the Standard Model decay t - GT bW. Since W bosons decay to the three lepton generations equally, while H+ may predominantly decay into tau nu, charged Higgs bosons can be searched for using the violation of lepton universality in top quark decays. The analysis in this paper is based on 4.6 fb(-1) of proton-proton collision data at root s = 7 TeV collected by the ATLAS experiment at the Large Hadron Collider. Signatures containing leptons (e or mu) and/or a hadronically decaying tau (tau(had)) are used. Event yield ratios between e+ tau(had) and e + mu, as well as between mu + tau(had) and mu + e, final states are measured in the data and compared to predictions from simulations. This ratio-based method reduces the impact of systematic uncertainties in the analysis. No significant deviation from the Standard Model predictions is observed. With the assumption that the branching fraction B(H+ - GT tau nu) is 100%, upper limits in the range 3.2%-4.4% can be placed on the branching fraction B(t - GT bH(+)) for charged Higgs boson masses m(H+) in the range 90-140GeV. After combination with results from a search for charged Higgs bosons in t (t) over bar decays using the tau(had) + jets final state, upper limits on B(t - GT bH(+)) can be set in the range 0.8%-3.4%, for m(H+) in the range 90-160GeV.
T2  - Journal of High Energy Physics
T1  - Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment
IS  - 3
DO  - 10.1007/JHEP03(2013)076
ER  - 

@article{
author = "Aad, G. and Borjanović, Iris and Božović-Jelisavčić, Ivanka and Ćirković, Predrag and Agatonović-Jovin, Tatjana and Krstić, Jelena and Mamužić, Judita and Milutinović-Dumbelović, Gordana and Popović, D. S. and Sijacki, Dj. and Simica, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija and Živković, Lada",
year = "2013",
abstract = "In several extensions of the Standard Model, the top quark can decay into a bottom quark and a light charged Higgs boson H+, t - GT bH(+), in addition to the Standard Model decay t - GT bW. Since W bosons decay to the three lepton generations equally, while H+ may predominantly decay into tau nu, charged Higgs bosons can be searched for using the violation of lepton universality in top quark decays. The analysis in this paper is based on 4.6 fb(-1) of proton-proton collision data at root s = 7 TeV collected by the ATLAS experiment at the Large Hadron Collider. Signatures containing leptons (e or mu) and/or a hadronically decaying tau (tau(had)) are used. Event yield ratios between e+ tau(had) and e + mu, as well as between mu + tau(had) and mu + e, final states are measured in the data and compared to predictions from simulations. This ratio-based method reduces the impact of systematic uncertainties in the analysis. No significant deviation from the Standard Model predictions is observed. With the assumption that the branching fraction B(H+ - GT tau nu) is 100%, upper limits in the range 3.2%-4.4% can be placed on the branching fraction B(t - GT bH(+)) for charged Higgs boson masses m(H+) in the range 90-140GeV. After combination with results from a search for charged Higgs bosons in t (t) over bar decays using the tau(had) + jets final state, upper limits on B(t - GT bH(+)) can be set in the range 0.8%-3.4%, for m(H+) in the range 90-160GeV.",
journal = "Journal of High Energy Physics",
title = "Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment",
number = "3",
doi = "10.1007/JHEP03(2013)076"
}

Aad, G., Borjanović, I., Božović-Jelisavčić, I., Ćirković, P., Agatonović-Jovin, T., Krstić, J., Mamužić, J., Milutinović-Dumbelović, G., Popović, D. S., Sijacki, Dj., Simica, Lj., Vranješ, N., Vranješ Milosavljević, M.,& Živković, L.. (2013). Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment. in Journal of High Energy Physics(3).
https://doi.org/10.1007/JHEP03(2013)076

Aad G, Borjanović I, Božović-Jelisavčić I, Ćirković P, Agatonović-Jovin T, Krstić J, Mamužić J, Milutinović-Dumbelović G, Popović DS, Sijacki D, Simica L, Vranješ N, Vranješ Milosavljević M, Živković L. Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment. in Journal of High Energy Physics. 2013;(3).
doi:10.1007/JHEP03(2013)076 .

Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Ćirković, Predrag, Agatonović-Jovin, Tatjana, Krstić, Jelena, Mamužić, Judita, Milutinović-Dumbelović, Gordana, Popović, D. S., Sijacki, Dj., Simica, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, Živković, Lada, "Search for charged Higgs bosons through the violation of lepton universality in t(t)over-bar events using pp collision data at root s=7 TeV with the ATLAS experiment" in Journal of High Energy Physics, no. 3 (2013),
https://doi.org/10.1007/JHEP03(2013)076 . .

TY  - JOUR
AU  - Aad, G.
AU  - Borjanović, Iris
AU  - Božović-Jelisavčić, Ivanka
AU  - Ćirković, Predrag
AU  - Agatonović-Jovin, Tatjana
AU  - Krstic, T. J.
AU  - Mamužić, Judita
AU  - Popović, D. S.
AU  - Sijacki, Dj.
AU  - Simić, Lj.
AU  - Vranješ, Nenad
AU  - Vranješ Milosavljević, Marija
AU  - Živković, Lada
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5527
AB  - A search for highly ionising, penetrating particles with electric charges from vertical bar q vertical bar = 2e to 6e is performed using the ATLAS detector at the CERN Large Hadron Collider. Proton-proton collision data taken at root s = 7 TeV during the 2011 running period, corresponding to an integrated luminosity of 4.4 fb(-1), are analysed. No signal candidates are observed, and 95% confidence level cross-section upper limits are interpreted as mass-exclusion lower limits for a simplified Drell-Yan production model. In this model, masses are excluded from 50 GeV up to 430, 480, 490, 470 and 420 GeV for charges 2e, 3e, 4e, 5e and 6e, respectively. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.
T2  - Physics Letters B
T1  - Search for long-lived, multi-charged particles in pp collisions at root s=7 TeV using the ATLAS detector
VL  - 722
IS  - 4-5
SP  - 305
EP  - 323
DO  - 10.1016/j.physletb.2013.04.036
ER  - 

@article{
author = "Aad, G. and Borjanović, Iris and Božović-Jelisavčić, Ivanka and Ćirković, Predrag and Agatonović-Jovin, Tatjana and Krstic, T. J. and Mamužić, Judita and Popović, D. S. and Sijacki, Dj. and Simić, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija and Živković, Lada",
year = "2013",
abstract = "A search for highly ionising, penetrating particles with electric charges from vertical bar q vertical bar = 2e to 6e is performed using the ATLAS detector at the CERN Large Hadron Collider. Proton-proton collision data taken at root s = 7 TeV during the 2011 running period, corresponding to an integrated luminosity of 4.4 fb(-1), are analysed. No signal candidates are observed, and 95% confidence level cross-section upper limits are interpreted as mass-exclusion lower limits for a simplified Drell-Yan production model. In this model, masses are excluded from 50 GeV up to 430, 480, 490, 470 and 420 GeV for charges 2e, 3e, 4e, 5e and 6e, respectively. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.",
journal = "Physics Letters B",
title = "Search for long-lived, multi-charged particles in pp collisions at root s=7 TeV using the ATLAS detector",
volume = "722",
number = "4-5",
pages = "305-323",
doi = "10.1016/j.physletb.2013.04.036"
}

Aad, G., Borjanović, I., Božović-Jelisavčić, I., Ćirković, P., Agatonović-Jovin, T., Krstic, T. J., Mamužić, J., Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, N., Vranješ Milosavljević, M.,& Živković, L.. (2013). Search for long-lived, multi-charged particles in pp collisions at root s=7 TeV using the ATLAS detector. in Physics Letters B, 722(4-5), 305-323.
https://doi.org/10.1016/j.physletb.2013.04.036

Aad G, Borjanović I, Božović-Jelisavčić I, Ćirković P, Agatonović-Jovin T, Krstic TJ, Mamužić J, Popović DS, Sijacki D, Simić L, Vranješ N, Vranješ Milosavljević M, Živković L. Search for long-lived, multi-charged particles in pp collisions at root s=7 TeV using the ATLAS detector. in Physics Letters B. 2013;722(4-5):305-323.
doi:10.1016/j.physletb.2013.04.036 .

Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Ćirković, Predrag, Agatonović-Jovin, Tatjana, Krstic, T. J., Mamužić, Judita, Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, Živković, Lada, "Search for long-lived, multi-charged particles in pp collisions at root s=7 TeV using the ATLAS detector" in Physics Letters B, 722, no. 4-5 (2013):305-323,
https://doi.org/10.1016/j.physletb.2013.04.036 . .

TY  - JOUR
AU  - Aad, G.
AU  - Borjanović, Iris
AU  - Božović-Jelisavčić, Ivanka
AU  - Ćirković, Predrag
AU  - Agatonović-Jovin, Tatjana
AU  - Krstić, Jelena
AU  - Mamužić, Judita
AU  - Popović, D. S.
AU  - Sijacki, Dj.
AU  - Simić, Lj.
AU  - Vranješ, Nenad
AU  - Vranješ Milosavljević, Marija
AU  - Živković, Lada
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5347
AB  - Mass and angular distributions of dijets produced in LHC proton-proton collisions at a centre-of-mass energy root s = 7TeV have been studied with the ATLAS detector using the full 2011 data set with an integrated luminosity of 4.8 fb(-1). Dijet masses up to similar to 4.0TeV have been probed. No resonance-like features have been observed in the dijet mass spectrum, and all angular distributions are consistent with the predictions of QCD. Exclusion limits on six hypotheses of new phenomena have been set at 95% CL in terms of mass or energy scale, as appropriate. These hypotheses include excited quarks below 2.83 TeV, colour octet scalars below 1.86TeV, heavy W bosons below 1.68 TeV, string resonances below 3.61 TeV, quantum black holes with six extra space-time dimensions for quantum gravity scales below 4.11 TeV, and quark contact interactions below a compositeness scale of 7.6 TeV in a destructive interference scenario.
T2  - Journal of High Energy Physics
T1  - ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at root s=7 TeV
IS  - 1
DO  - 10.1007/JHEP01(2013)029
ER  - 

@article{
author = "Aad, G. and Borjanović, Iris and Božović-Jelisavčić, Ivanka and Ćirković, Predrag and Agatonović-Jovin, Tatjana and Krstić, Jelena and Mamužić, Judita and Popović, D. S. and Sijacki, Dj. and Simić, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija and Živković, Lada",
year = "2013",
abstract = "Mass and angular distributions of dijets produced in LHC proton-proton collisions at a centre-of-mass energy root s = 7TeV have been studied with the ATLAS detector using the full 2011 data set with an integrated luminosity of 4.8 fb(-1). Dijet masses up to similar to 4.0TeV have been probed. No resonance-like features have been observed in the dijet mass spectrum, and all angular distributions are consistent with the predictions of QCD. Exclusion limits on six hypotheses of new phenomena have been set at 95% CL in terms of mass or energy scale, as appropriate. These hypotheses include excited quarks below 2.83 TeV, colour octet scalars below 1.86TeV, heavy W bosons below 1.68 TeV, string resonances below 3.61 TeV, quantum black holes with six extra space-time dimensions for quantum gravity scales below 4.11 TeV, and quark contact interactions below a compositeness scale of 7.6 TeV in a destructive interference scenario.",
journal = "Journal of High Energy Physics",
title = "ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at root s=7 TeV",
number = "1",
doi = "10.1007/JHEP01(2013)029"
}

Aad, G., Borjanović, I., Božović-Jelisavčić, I., Ćirković, P., Agatonović-Jovin, T., Krstić, J., Mamužić, J., Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, N., Vranješ Milosavljević, M.,& Živković, L.. (2013). ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at root s=7 TeV. in Journal of High Energy Physics(1).
https://doi.org/10.1007/JHEP01(2013)029

Aad G, Borjanović I, Božović-Jelisavčić I, Ćirković P, Agatonović-Jovin T, Krstić J, Mamužić J, Popović DS, Sijacki D, Simić L, Vranješ N, Vranješ Milosavljević M, Živković L. ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at root s=7 TeV. in Journal of High Energy Physics. 2013;(1).
doi:10.1007/JHEP01(2013)029 .

Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Ćirković, Predrag, Agatonović-Jovin, Tatjana, Krstić, Jelena, Mamužić, Judita, Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, Živković, Lada, "ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at root s=7 TeV" in Journal of High Energy Physics, no. 1 (2013),
https://doi.org/10.1007/JHEP01(2013)029 . .

TY  - JOUR
AU  - Aad, G.
AU  - Borjanović, Iris
AU  - Božović-Jelisavčić, Ivanka
AU  - Ćirković, Predrag
AU  - Agatonović-Jovin, Tatjana
AU  - Krstić, Jelena
AU  - Mamužić, Judita
AU  - Popović, D. S.
AU  - Sijacki, Dj.
AU  - Simić, Lj.
AU  - Vranješ, Nenad
AU  - Vranješ Milosavljević, Marija
AU  - Živković, Lada
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5331
AB  - A search has been performed for the experimental signature of an isolated photon with high transverse momentum, at least one jet identified as originating from a bottom quark, and high missing transverse momentum. Such a final state may originate from supersymmetric models with gauge-mediated supersymmetry breaking in events in which one of a pair of higgsino-like neutralinos decays into a photon and a gravitino while the other decays into a Higgs boson and a gravitino. The search is performed using the full dataset of 7 TeV proton-proton collisions recorded with the ATLAS detector at the LHC in 2011, corresponding to an integrated luminosity of 4.7 fb(-1). A total of 7 candidate events are observed while 7.5 +/- 2.2 events are expected from the Standard Model background. The results of the search are interpreted in the context of general gauge mediation to exclude certain regions of a benchmark plane for higgsino-like neutralino production. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.
T2  - Physics Letters B
T1  - Search for supersymmetry in events with photons, bottom quarks, and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector
VL  - 719
IS  - 4-5
SP  - 261
EP  - 279
DO  - 10.1016/j.physletb.2013.01.041
ER  - 

@article{
author = "Aad, G. and Borjanović, Iris and Božović-Jelisavčić, Ivanka and Ćirković, Predrag and Agatonović-Jovin, Tatjana and Krstić, Jelena and Mamužić, Judita and Popović, D. S. and Sijacki, Dj. and Simić, Lj. and Vranješ, Nenad and Vranješ Milosavljević, Marija and Živković, Lada",
year = "2013",
abstract = "A search has been performed for the experimental signature of an isolated photon with high transverse momentum, at least one jet identified as originating from a bottom quark, and high missing transverse momentum. Such a final state may originate from supersymmetric models with gauge-mediated supersymmetry breaking in events in which one of a pair of higgsino-like neutralinos decays into a photon and a gravitino while the other decays into a Higgs boson and a gravitino. The search is performed using the full dataset of 7 TeV proton-proton collisions recorded with the ATLAS detector at the LHC in 2011, corresponding to an integrated luminosity of 4.7 fb(-1). A total of 7 candidate events are observed while 7.5 +/- 2.2 events are expected from the Standard Model background. The results of the search are interpreted in the context of general gauge mediation to exclude certain regions of a benchmark plane for higgsino-like neutralino production. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.",
journal = "Physics Letters B",
title = "Search for supersymmetry in events with photons, bottom quarks, and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector",
volume = "719",
number = "4-5",
pages = "261-279",
doi = "10.1016/j.physletb.2013.01.041"
}

Aad, G., Borjanović, I., Božović-Jelisavčić, I., Ćirković, P., Agatonović-Jovin, T., Krstić, J., Mamužić, J., Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, N., Vranješ Milosavljević, M.,& Živković, L.. (2013). Search for supersymmetry in events with photons, bottom quarks, and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector. in Physics Letters B, 719(4-5), 261-279.
https://doi.org/10.1016/j.physletb.2013.01.041

Aad G, Borjanović I, Božović-Jelisavčić I, Ćirković P, Agatonović-Jovin T, Krstić J, Mamužić J, Popović DS, Sijacki D, Simić L, Vranješ N, Vranješ Milosavljević M, Živković L. Search for supersymmetry in events with photons, bottom quarks, and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector. in Physics Letters B. 2013;719(4-5):261-279.
doi:10.1016/j.physletb.2013.01.041 .

Aad, G., Borjanović, Iris, Božović-Jelisavčić, Ivanka, Ćirković, Predrag, Agatonović-Jovin, Tatjana, Krstić, Jelena, Mamužić, Judita, Popović, D. S., Sijacki, Dj., Simić, Lj., Vranješ, Nenad, Vranješ Milosavljević, Marija, Živković, Lada, "Search for supersymmetry in events with photons, bottom quarks, and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector" in Physics Letters B, 719, no. 4-5 (2013):261-279,
https://doi.org/10.1016/j.physletb.2013.01.041 . .