TY  - JOUR
AU  - Aaboud, M.
AU  - Aad, G.
AU  - Abbott, B.
AU  - Agatonović-Jovin, Tatjana
AU  - Dimitrievska, A.
AU  - Krstic, J.
AU  - Sijacki, Dj.
AU  - Vranjes, N.
AU  - Vranjes Milosavljevic, M.
AU  - Živković, L.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11842
AB  - Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 36.1 fb−1 at a centre-of-mass energy of 13 TeV collected in 2015 and 2016 with the ATLAS detector at the Large Hadron Collider. Events are required to have at least one jet with a transverse momentum above 250 GeV and no leptons (e or μ). Several signal regions are considered with increasing requirements on the missing transverse momentum above 250 GeV. Good agreement is observed between the number of events in data and Standard Model predictions. The results are translated into exclusion limits in models with pair-produced weakly interacting dark-matter candidates, large extra spatial dimensions, and supersymmetric particles in several compressed scenarios.
T2  - Journal of High Energy Physics
T1  - Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector
IS  - 1
SP  - 126
DO  - 10.1007/JHEP01(2018)126
ER  - 

@article{
author = "Aaboud, M. and Aad, G. and Abbott, B. and Agatonović-Jovin, Tatjana and Dimitrievska, A. and Krstic, J. and Sijacki, Dj. and Vranjes, N. and Vranjes Milosavljevic, M. and Živković, L.",
year = "2018",
abstract = "Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 36.1 fb−1 at a centre-of-mass energy of 13 TeV collected in 2015 and 2016 with the ATLAS detector at the Large Hadron Collider. Events are required to have at least one jet with a transverse momentum above 250 GeV and no leptons (e or μ). Several signal regions are considered with increasing requirements on the missing transverse momentum above 250 GeV. Good agreement is observed between the number of events in data and Standard Model predictions. The results are translated into exclusion limits in models with pair-produced weakly interacting dark-matter candidates, large extra spatial dimensions, and supersymmetric particles in several compressed scenarios.",
journal = "Journal of High Energy Physics",
title = "Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector",
number = "1",
pages = "126",
doi = "10.1007/JHEP01(2018)126"
}

Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, T., Dimitrievska, A., Krstic, J., Sijacki, Dj., Vranjes, N., Vranjes Milosavljevic, M.,& Živković, L.. (2018). Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector. in Journal of High Energy Physics(1), 126.
https://doi.org/10.1007/JHEP01(2018)126

Aaboud M, Aad G, Abbott B, Agatonović-Jovin T, Dimitrievska A, Krstic J, Sijacki D, Vranjes N, Vranjes Milosavljevic M, Živković L. Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector. in Journal of High Energy Physics. 2018;(1):126.
doi:10.1007/JHEP01(2018)126 .

Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, Tatjana, Dimitrievska, A., Krstic, J., Sijacki, Dj., Vranjes, N., Vranjes Milosavljevic, M., Živković, L., "Search for dark matter and other new phenomena in events with an energetic jet and large missing transverse momentum using the ATLAS detector" in Journal of High Energy Physics, no. 1 (2018):126,
https://doi.org/10.1007/JHEP01(2018)126 . .

TY  - JOUR
AU  - Aaboud, M.
AU  - Aad, G.
AU  - Abbott, B.
AU  - Agatonović-Jovin, Tatjana
AU  - Dimitrievska, A.
AU  - Krstic, J.
AU  - Sijacki, Dj.
AU  - Simic, L.
AU  - Vranjes, N.
AU  - Vranjes Milosavljevic, M.
AU  - Živković, L.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11829
AB  - The results of a search for the direct pair production of top squarks, the supersymmetric partner of the top quark, in final states with one isolated electron or muon, several energetic jets, and missing transverse momentum are reported. The analysis also targets spin-0 mediator models, where the mediator decays into a pair of dark-matter particles and is produced in association with a pair of top quarks. The search uses data from proton-proton collisions delivered by the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of  s=13 $$ \sqrt{s}=13 $$ TeV and recorded by the ATLAS detector, corresponding to an integrated luminosity of 36 fb−1. A wide range of signal scenarios with different mass-splittings between the top squark, the lightest neutralino and possible intermediate supersymmetric particles are considered, including cases where the W bosons or the top quarks produced in the decay chain are off-shell. No significant excess over the Standard Model prediction is observed. The null results are used to set exclusion limits at 95% confidence level in several supersymmetry benchmark models. For pair-produced top-squarks decaying into top quarks, top-squark masses up to 940 GeV are excluded. Stringent exclusion limits are also derived for all other considered top-squark decay scenarios. For the spin-0 mediator models, upper limits are set on the visible cross-section.
T2  - Journal of High Energy Physics
T1  - Search for top-squark pair production in final states with one lepton, jets, and missing transverse momentum using 36 fb−1 of √s=13 TeV pp collision data with the ATLAS detector
DO  - 10.1007/JHEP06(2018)108
ER  - 

@article{
author = "Aaboud, M. and Aad, G. and Abbott, B. and Agatonović-Jovin, Tatjana and Dimitrievska, A. and Krstic, J. and Sijacki, Dj. and Simic, L. and Vranjes, N. and Vranjes Milosavljevic, M. and Živković, L.",
year = "2018",
abstract = "The results of a search for the direct pair production of top squarks, the supersymmetric partner of the top quark, in final states with one isolated electron or muon, several energetic jets, and missing transverse momentum are reported. The analysis also targets spin-0 mediator models, where the mediator decays into a pair of dark-matter particles and is produced in association with a pair of top quarks. The search uses data from proton-proton collisions delivered by the Large Hadron Collider in 2015 and 2016 at a centre-of-mass energy of  s=13 $$ \sqrt{s}=13 $$ TeV and recorded by the ATLAS detector, corresponding to an integrated luminosity of 36 fb−1. A wide range of signal scenarios with different mass-splittings between the top squark, the lightest neutralino and possible intermediate supersymmetric particles are considered, including cases where the W bosons or the top quarks produced in the decay chain are off-shell. No significant excess over the Standard Model prediction is observed. The null results are used to set exclusion limits at 95% confidence level in several supersymmetry benchmark models. For pair-produced top-squarks decaying into top quarks, top-squark masses up to 940 GeV are excluded. Stringent exclusion limits are also derived for all other considered top-squark decay scenarios. For the spin-0 mediator models, upper limits are set on the visible cross-section.",
journal = "Journal of High Energy Physics",
title = "Search for top-squark pair production in final states with one lepton, jets, and missing transverse momentum using 36 fb−1 of √s=13 TeV pp collision data with the ATLAS detector",
doi = "10.1007/JHEP06(2018)108"
}

Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, T., Dimitrievska, A., Krstic, J., Sijacki, Dj., Simic, L., Vranjes, N., Vranjes Milosavljevic, M.,& Živković, L.. (2018). Search for top-squark pair production in final states with one lepton, jets, and missing transverse momentum using 36 fb−1 of √s=13 TeV pp collision data with the ATLAS detector. in Journal of High Energy Physics.
https://doi.org/10.1007/JHEP06(2018)108

Aaboud M, Aad G, Abbott B, Agatonović-Jovin T, Dimitrievska A, Krstic J, Sijacki D, Simic L, Vranjes N, Vranjes Milosavljevic M, Živković L. Search for top-squark pair production in final states with one lepton, jets, and missing transverse momentum using 36 fb−1 of √s=13 TeV pp collision data with the ATLAS detector. in Journal of High Energy Physics. 2018;.
doi:10.1007/JHEP06(2018)108 .

Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, Tatjana, Dimitrievska, A., Krstic, J., Sijacki, Dj., Simic, L., Vranjes, N., Vranjes Milosavljevic, M., Živković, L., "Search for top-squark pair production in final states with one lepton, jets, and missing transverse momentum using 36 fb−1 of √s=13 TeV pp collision data with the ATLAS detector" in Journal of High Energy Physics (2018),
https://doi.org/10.1007/JHEP06(2018)108 . .

TY  - JOUR
AU  - Aad, G.
AU  - Abbott, B.
AU  - Abdallah, J.
AU  - Agatonović-Jovin, Tatjana
AU  - Bogavac, D.
AU  - Bozic, I.
AU  - Dimitrievska, A.
AU  - Krstic, J.
AU  - Marjanovic, M.
AU  - Popovic, D.S.
AU  - Sijacki, Dj.
AU  - Simic, Lj.
AU  - Vranjes, N.
AU  - Vranjes Milosavljevic, M.
AU  - Živković, L.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11843
AB  - The production of D*(+/-), D-+/- and D-S(+/-) charmed mesons has been measured with the ATLAS detector in pp collisions at,/7s = 7 TeV at the LHC, using data corresponding to an integrated luminosity of 280 nb(-)1(.) The charmed mesons have been reconstructed in the range of transverse momentum 3.5 < p(T)(D) < 100 GeV and pseudorapidity vertical bar eta(D)vertical bar < 2.1. The differential cross sections as a function of transverse momentum and pseudorapidity were measured for D*(+/-) and D-+/- production. The next-to-leading-order QCD predictions are consistent with the data in the visible kinematic region within the large theoretical uncertainties. Using the visible D cross sections and an extrapolation to the full kinematic phase space, the strangeness -suppression factor in charm fragmentation, the fraction of charged non -strange D mesons produced in a vector state, and the total cross section of charm production at root s = 7 TeV were derived.
T2  - Nuclear Physics B
T1  - Measurement of D*±, D± and DS± meson production cross sections in pp collisions at √s=7 TeV with the ATLAS detector
VL  - 907
SP  - 717
EP  - 763
DO  - 10.1016/j.nuclphysb.2016.04.032
ER  - 

@article{
author = "Aad, G. and Abbott, B. and Abdallah, J. and Agatonović-Jovin, Tatjana and Bogavac, D. and Bozic, I. and Dimitrievska, A. and Krstic, J. and Marjanovic, M. and Popovic, D.S. and Sijacki, Dj. and Simic, Lj. and Vranjes, N. and Vranjes Milosavljevic, M. and Živković, L.",
year = "2016",
abstract = "The production of D*(+/-), D-+/- and D-S(+/-) charmed mesons has been measured with the ATLAS detector in pp collisions at,/7s = 7 TeV at the LHC, using data corresponding to an integrated luminosity of 280 nb(-)1(.) The charmed mesons have been reconstructed in the range of transverse momentum 3.5 < p(T)(D) < 100 GeV and pseudorapidity vertical bar eta(D)vertical bar < 2.1. The differential cross sections as a function of transverse momentum and pseudorapidity were measured for D*(+/-) and D-+/- production. The next-to-leading-order QCD predictions are consistent with the data in the visible kinematic region within the large theoretical uncertainties. Using the visible D cross sections and an extrapolation to the full kinematic phase space, the strangeness -suppression factor in charm fragmentation, the fraction of charged non -strange D mesons produced in a vector state, and the total cross section of charm production at root s = 7 TeV were derived.",
journal = "Nuclear Physics B",
title = "Measurement of D*±, D± and DS± meson production cross sections in pp collisions at √s=7 TeV with the ATLAS detector",
volume = "907",
pages = "717-763",
doi = "10.1016/j.nuclphysb.2016.04.032"
}

Aad, G., Abbott, B., Abdallah, J., Agatonović-Jovin, T., Bogavac, D., Bozic, I., Dimitrievska, A., Krstic, J., Marjanovic, M., Popovic, D.S., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M.,& Živković, L.. (2016). Measurement of D*±, D± and DS± meson production cross sections in pp collisions at √s=7 TeV with the ATLAS detector. in Nuclear Physics B, 907, 717-763.
https://doi.org/10.1016/j.nuclphysb.2016.04.032

Aad G, Abbott B, Abdallah J, Agatonović-Jovin T, Bogavac D, Bozic I, Dimitrievska A, Krstic J, Marjanovic M, Popovic D, Sijacki D, Simic L, Vranjes N, Vranjes Milosavljevic M, Živković L. Measurement of D*±, D± and DS± meson production cross sections in pp collisions at √s=7 TeV with the ATLAS detector. in Nuclear Physics B. 2016;907:717-763.
doi:10.1016/j.nuclphysb.2016.04.032 .

Aad, G., Abbott, B., Abdallah, J., Agatonović-Jovin, Tatjana, Bogavac, D., Bozic, I., Dimitrievska, A., Krstic, J., Marjanovic, M., Popovic, D.S., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M., Živković, L., "Measurement of D*±, D± and DS± meson production cross sections in pp collisions at √s=7 TeV with the ATLAS detector" in Nuclear Physics B, 907 (2016):717-763,
https://doi.org/10.1016/j.nuclphysb.2016.04.032 . .

TY  - JOUR
AU  - Aad, G.
AU  - Abbott, B.
AU  - Abdallah, J.
AU  - Agatonović-Jovin, Tatjana
AU  - Bogavac, D.
AU  - Bozic, I.
AU  - Dimitrievska, A.
AU  - Krstic, J.
AU  - Marjanovic, M.
AU  - Popovic, D.
AU  - Sijacki, Dj.
AU  - Simic, Lj.
AU  - Vranjes, N.
AU  - Vranjes Milosavljevic, M.
AU  - Živković, L.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11845
AB  - The cross-section for the production of a single top quark in association with a W boson in proton-proton collisions at √s = 8TeV is measured. The dataset corresponds to an integrated luminosity of 20.3 fb−1, collected by the ATLAS detector in 2012 at the Large Hadron Collider at CERN. Events containing two leptons and one central b-jet are selected. The W t signal is separated from the backgrounds using boosted decision trees, each of which combines a number of discriminating variables into one classifier. Production of W t events is observed with a significance of 7.7σ. The cross-section is extracted in a profile likelihood fit to the classifier output distributions. The W t cross-section, inclusive of decay modes, is measured to be 23.0 ± 1.3(stat.)− 3.5 + 3.2(syst.)±1.1(lumi.) pb. The measured cross-section is used to extract a value for the CKM matrix element |Vtb| of 1.01 ± 0.10 and a lower limit of 0.80 at the 95% confidence level. The cross-section for the production of a top quark and a W boson is also measured in a fiducial acceptance requiring two leptons with pT> 25 GeV and |η| < 2.5, one jet with pT> 20 GeV and |η| < 2.5, and ET miss > 20 GeV, including both W t and top-quark pair events as signal. The measured value of the fiducial cross-section is 0.85 ± 0.01(stat.)− 0.07 + 0.07(syst.)±0.03(lumi.) pb.
T2  - Journal of High Energy Physics
T1  - Measurement of the production cross-section of a single top quark in association with a W boson at 8 TeV with the ATLAS experiment
IS  - 1
SP  - 64
DO  - 10.1007/JHEP01(2016)064
ER  - 

@article{
author = "Aad, G. and Abbott, B. and Abdallah, J. and Agatonović-Jovin, Tatjana and Bogavac, D. and Bozic, I. and Dimitrievska, A. and Krstic, J. and Marjanovic, M. and Popovic, D. and Sijacki, Dj. and Simic, Lj. and Vranjes, N. and Vranjes Milosavljevic, M. and Živković, L.",
year = "2016",
abstract = "The cross-section for the production of a single top quark in association with a W boson in proton-proton collisions at √s = 8TeV is measured. The dataset corresponds to an integrated luminosity of 20.3 fb−1, collected by the ATLAS detector in 2012 at the Large Hadron Collider at CERN. Events containing two leptons and one central b-jet are selected. The W t signal is separated from the backgrounds using boosted decision trees, each of which combines a number of discriminating variables into one classifier. Production of W t events is observed with a significance of 7.7σ. The cross-section is extracted in a profile likelihood fit to the classifier output distributions. The W t cross-section, inclusive of decay modes, is measured to be 23.0 ± 1.3(stat.)− 3.5 + 3.2(syst.)±1.1(lumi.) pb. The measured cross-section is used to extract a value for the CKM matrix element |Vtb| of 1.01 ± 0.10 and a lower limit of 0.80 at the 95% confidence level. The cross-section for the production of a top quark and a W boson is also measured in a fiducial acceptance requiring two leptons with pT> 25 GeV and |η| < 2.5, one jet with pT> 20 GeV and |η| < 2.5, and ET miss > 20 GeV, including both W t and top-quark pair events as signal. The measured value of the fiducial cross-section is 0.85 ± 0.01(stat.)− 0.07 + 0.07(syst.)±0.03(lumi.) pb.",
journal = "Journal of High Energy Physics",
title = "Measurement of the production cross-section of a single top quark in association with a W boson at 8 TeV with the ATLAS experiment",
number = "1",
pages = "64",
doi = "10.1007/JHEP01(2016)064"
}

Aad, G., Abbott, B., Abdallah, J., Agatonović-Jovin, T., Bogavac, D., Bozic, I., Dimitrievska, A., Krstic, J., Marjanovic, M., Popovic, D., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M.,& Živković, L.. (2016). Measurement of the production cross-section of a single top quark in association with a W boson at 8 TeV with the ATLAS experiment. in Journal of High Energy Physics(1), 64.
https://doi.org/10.1007/JHEP01(2016)064

Aad G, Abbott B, Abdallah J, Agatonović-Jovin T, Bogavac D, Bozic I, Dimitrievska A, Krstic J, Marjanovic M, Popovic D, Sijacki D, Simic L, Vranjes N, Vranjes Milosavljevic M, Živković L. Measurement of the production cross-section of a single top quark in association with a W boson at 8 TeV with the ATLAS experiment. in Journal of High Energy Physics. 2016;(1):64.
doi:10.1007/JHEP01(2016)064 .

Aad, G., Abbott, B., Abdallah, J., Agatonović-Jovin, Tatjana, Bogavac, D., Bozic, I., Dimitrievska, A., Krstic, J., Marjanovic, M., Popovic, D., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M., Živković, L., "Measurement of the production cross-section of a single top quark in association with a W boson at 8 TeV with the ATLAS experiment" in Journal of High Energy Physics, no. 1 (2016):64,
https://doi.org/10.1007/JHEP01(2016)064 . .