Abbott, B.

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  • Abbott, B. (7)
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Author's Bibliography

Measurement of detector-corrected observables sensitive to the anomalous production of events with jets and large missing transverse momentum in pp collisions at √s=13 TeV using the ATLAS detector

Aaboud, M.; Aad, G.; Abbott, B.; Agatonović-Jovin, Tatjana; Dimitrievska, A.; Krstic, J.; Sijacki, Dj.; Simic, Lj.; Vranjes, N.; Vranjes Milosavljevic, M.; Živković, L.

(2017)

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, Lj.
AU  - Vranjes, N.
AU  - Vranjes Milosavljevic, M.
AU  - Živković, L.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11847
AB  - Observables sensitive to the anomalous production of events containing hadronic jets and missing momentum in the plane transverse to the proton beams at the Large Hadron Collider are presented. The observables are defined as a ratio of cross sections, for events containing jets and large missing transverse momentum to events containing jets and a pair of charged leptons from the decay of a Z/ γ∗boson. This definition minimises experimental and theoretical systematic uncertainties in the measurements. This ratio is measured differentially with respect to a number of kinematic properties of the hadronic system in two phase-space regions; one inclusive single-jet region and one region sensitive to vector-boson-fusion topologies. The data are found to be in agreement with the Standard Model predictions and used to constrain a variety of theoretical models for dark-matter production, including simplified models, effective field theory models, and invisible decays of the Higgs boson. The measurements use 3.2 fb- 1of proton–proton collision data recorded by the ATLAS experiment at a centre-of-mass energy of 13 TeV and are fully corrected for detector effects, meaning that the data can be used to constrain new-physics models beyond those shown in this paper.
T2  - European Physical Journal C
T1  - Measurement of detector-corrected observables sensitive to the anomalous production of events with jets and large missing transverse momentum in pp collisions at √s=13 TeV using the ATLAS detector
VL  - 77
IS  - 11
SP  - 765
DO  - 10.1140/epjc/s10052-017-5315-6
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, Lj. and Vranjes, N. and Vranjes Milosavljevic, M. and Živković, L.",
year = "2017",
abstract = "Observables sensitive to the anomalous production of events containing hadronic jets and missing momentum in the plane transverse to the proton beams at the Large Hadron Collider are presented. The observables are defined as a ratio of cross sections, for events containing jets and large missing transverse momentum to events containing jets and a pair of charged leptons from the decay of a Z/ γ∗boson. This definition minimises experimental and theoretical systematic uncertainties in the measurements. This ratio is measured differentially with respect to a number of kinematic properties of the hadronic system in two phase-space regions; one inclusive single-jet region and one region sensitive to vector-boson-fusion topologies. The data are found to be in agreement with the Standard Model predictions and used to constrain a variety of theoretical models for dark-matter production, including simplified models, effective field theory models, and invisible decays of the Higgs boson. The measurements use 3.2 fb- 1of proton–proton collision data recorded by the ATLAS experiment at a centre-of-mass energy of 13 TeV and are fully corrected for detector effects, meaning that the data can be used to constrain new-physics models beyond those shown in this paper.",
journal = "European Physical Journal C",
title = "Measurement of detector-corrected observables sensitive to the anomalous production of events with jets and large missing transverse momentum in pp collisions at √s=13 TeV using the ATLAS detector",
volume = "77",
number = "11",
pages = "765",
doi = "10.1140/epjc/s10052-017-5315-6"
}
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, T., Dimitrievska, A., Krstic, J., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M.,& Živković, L.. (2017). Measurement of detector-corrected observables sensitive to the anomalous production of events with jets and large missing transverse momentum in pp collisions at √s=13 TeV using the ATLAS detector. in European Physical Journal C, 77(11), 765.
https://doi.org/10.1140/epjc/s10052-017-5315-6
Aaboud M, Aad G, Abbott B, Agatonović-Jovin T, Dimitrievska A, Krstic J, Sijacki D, Simic L, Vranjes N, Vranjes Milosavljevic M, Živković L. Measurement of detector-corrected observables sensitive to the anomalous production of events with jets and large missing transverse momentum in pp collisions at √s=13 TeV using the ATLAS detector. in European Physical Journal C. 2017;77(11):765.
doi:10.1140/epjc/s10052-017-5315-6 .
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, Tatjana, Dimitrievska, A., Krstic, J., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M., Živković, L., "Measurement of detector-corrected observables sensitive to the anomalous production of events with jets and large missing transverse momentum in pp collisions at √s=13 TeV using the ATLAS detector" in European Physical Journal C, 77, no. 11 (2017):765,
https://doi.org/10.1140/epjc/s10052-017-5315-6 . .
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Study of ordered hadron chains with the ATLAS detector

Aaboud, M.; Aad, G.; Abbott, B.; Agatonović-Jovin, Tatjana

(2017)

TY  - JOUR
AU  - Aaboud, M.
AU  - Aad, G.
AU  - Abbott, B.
AU  - Agatonović-Jovin, Tatjana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11844
AB  - The analysis of the momentum difference between charged hadrons in high-energy proton-proton collisions is performed in order to study coherent particle production. The observed correlation pattern agrees with a model of a helical QCD string fragmenting into a chain of ground-state hadrons. A threshold momentum difference in the production of adjacent pairs of charged hadrons is observed, in agreement with model predictions. The presence of low-mass hadron chains also explains the emergence of charge-combination-dependent two-particle correlations commonly attributed to Bose-Einstein interference. The data sample consists of 190 mu b(-1) of minimum-bias events collected with proton-proton collisions at a center-of-mass energy root s = 7 TeV in the early low-luminosity data taking with the ATLAS detector at the LHC.
T2  - Physical Review D
T1  - Study of ordered hadron chains with the ATLAS detector
VL  - 96
IS  - 6
SP  - 092008
DO  - 10.1103/PhysRevD.96.092008
ER  - 
@article{
author = "Aaboud, M. and Aad, G. and Abbott, B. and Agatonović-Jovin, Tatjana",
year = "2017",
abstract = "The analysis of the momentum difference between charged hadrons in high-energy proton-proton collisions is performed in order to study coherent particle production. The observed correlation pattern agrees with a model of a helical QCD string fragmenting into a chain of ground-state hadrons. A threshold momentum difference in the production of adjacent pairs of charged hadrons is observed, in agreement with model predictions. The presence of low-mass hadron chains also explains the emergence of charge-combination-dependent two-particle correlations commonly attributed to Bose-Einstein interference. The data sample consists of 190 mu b(-1) of minimum-bias events collected with proton-proton collisions at a center-of-mass energy root s = 7 TeV in the early low-luminosity data taking with the ATLAS detector at the LHC.",
journal = "Physical Review D",
title = "Study of ordered hadron chains with the ATLAS detector",
volume = "96",
number = "6",
pages = "092008",
doi = "10.1103/PhysRevD.96.092008"
}
Aaboud, M., Aad, G., Abbott, B.,& Agatonović-Jovin, T.. (2017). Study of ordered hadron chains with the ATLAS detector. in Physical Review D, 96(6), 092008.
https://doi.org/10.1103/PhysRevD.96.092008
Aaboud M, Aad G, Abbott B, Agatonović-Jovin T. Study of ordered hadron chains with the ATLAS detector. in Physical Review D. 2017;96(6):092008.
doi:10.1103/PhysRevD.96.092008 .
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, Tatjana, "Study of ordered hadron chains with the ATLAS detector" in Physical Review D, 96, no. 6 (2017):092008,
https://doi.org/10.1103/PhysRevD.96.092008 . .
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Search for new phenomena in dijet events using 37  fb−1 of pp collision data collected at √s=13  TeV with the ATLAS detector

Aaboud, M.; Aad, G.; Abbott, B.; Agatonović-Jovin, Tatjana; Dimitrievska, A.; Krstic, J.; Sijacki, Dj.; Simic, L.; Vranjes, N.; Vranjes Milosavljevic, M.; Živković, L.

(2017)

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  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11832
AB  - Dijet events are studied in the proton-proton collision data set recorded at s=13 TeV with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to integrated luminosities of 3.5 fb-1 and 33.5 fb-1 respectively. Invariant mass and angular distributions are compared to background predictions and no significant deviation is observed. For resonance searches, a new method for fitting the background component of the invariant mass distribution is employed. The data set is then used to set upper limits at a 95% confidence level on a range of new physics scenarios. Excited quarks with masses below 6.0 TeV are excluded, and limits are set on quantum black holes, heavy W′ bosons, W∗ bosons, and a range of masses and couplings in a Z′ dark matter mediator model. Model-independent limits on signals with a Gaussian shape are also set, using a new approach allowing factorization of physics and detector effects. From the angular distributions, a scale of new physics in contact interaction models is excluded for scenarios with either constructive or destructive interference. These results represent a substantial improvement over those obtained previously with lower integrated luminosity.
T2  - Physical Review D
T1  - Search for new phenomena in dijet events using 37  fb−1 of pp collision data collected at √s=13  TeV with the ATLAS detector
VL  - 96
IS  - 5
SP  - 052004
DO  - 10.1103/PhysRevD.96.052004
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 = "2017",
abstract = "Dijet events are studied in the proton-proton collision data set recorded at s=13 TeV with the ATLAS detector at the Large Hadron Collider in 2015 and 2016, corresponding to integrated luminosities of 3.5 fb-1 and 33.5 fb-1 respectively. Invariant mass and angular distributions are compared to background predictions and no significant deviation is observed. For resonance searches, a new method for fitting the background component of the invariant mass distribution is employed. The data set is then used to set upper limits at a 95% confidence level on a range of new physics scenarios. Excited quarks with masses below 6.0 TeV are excluded, and limits are set on quantum black holes, heavy W′ bosons, W∗ bosons, and a range of masses and couplings in a Z′ dark matter mediator model. Model-independent limits on signals with a Gaussian shape are also set, using a new approach allowing factorization of physics and detector effects. From the angular distributions, a scale of new physics in contact interaction models is excluded for scenarios with either constructive or destructive interference. These results represent a substantial improvement over those obtained previously with lower integrated luminosity.",
journal = "Physical Review D",
title = "Search for new phenomena in dijet events using 37  fb−1 of pp collision data collected at √s=13  TeV with the ATLAS detector",
volume = "96",
number = "5",
pages = "052004",
doi = "10.1103/PhysRevD.96.052004"
}
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, T., Dimitrievska, A., Krstic, J., Sijacki, Dj., Simic, L., Vranjes, N., Vranjes Milosavljevic, M.,& Živković, L.. (2017). Search for new phenomena in dijet events using 37  fb−1 of pp collision data collected at √s=13  TeV with the ATLAS detector. in Physical Review D, 96(5), 052004.
https://doi.org/10.1103/PhysRevD.96.052004
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 new phenomena in dijet events using 37  fb−1 of pp collision data collected at √s=13  TeV with the ATLAS detector. in Physical Review D. 2017;96(5):052004.
doi:10.1103/PhysRevD.96.052004 .
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 new phenomena in dijet events using 37  fb−1 of pp collision data collected at √s=13  TeV with the ATLAS detector" in Physical Review D, 96, no. 5 (2017):052004,
https://doi.org/10.1103/PhysRevD.96.052004 . .
15
128
87
208

Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at √s=13 TeV using the ATLAS detector

Aaboud, M.; Aad, G.; Abbott, B.; Agatonović-Jovin, Tatjana; Bogavac, D.; Bokan, P.; Dimitrievska, A.; Krstic, J.; Marjanovic, M.; Sijacki, Dj.; Simic, Lj.; Vranjes, N.; Vranjes Milosavljevic, M.; Živković, L.

(2017)

TY  - JOUR
AU  - Aaboud, M.
AU  - Aad, G.
AU  - Abbott, B.
AU  - Agatonović-Jovin, Tatjana
AU  - Bogavac, D.
AU  - Bokan, P.
AU  - Dimitrievska, A.
AU  - Krstic, J.
AU  - Marjanovic, M.
AU  - Sijacki, Dj.
AU  - Simic, Lj.
AU  - Vranjes, N.
AU  - Vranjes Milosavljevic, M.
AU  - Živković, L.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11830
AB  - This article presents measurements of tt¯ differential cross-sections in a fiducial phase-space region, using an integrated luminosity of 3.2 fb- 1 of proton–proton data at a centre-of-mass energy of s=13 TeV recorded by the ATLAS experiment at the LHC in 2015. Differential cross-sections are measured as a function of the transverse momentum and absolute rapidity of the top quark, and of the transverse momentum, absolute rapidity and invariant mass of the tt¯ system. The tt¯ events are selected by requiring one electron and one muon of opposite electric charge, and at least two jets, one of which must be tagged as containing a b-hadron. The measured differential cross-sections are compared to predictions of next-to-leading order generators matched to parton showers and the measurements are found to be consistent with all models within the experimental uncertainties with the exception of the Powheg-Box+ Herwig++ predictions, which differ significantly from the data in both the transverse momentum of the top quark and the mass of the tt¯ system.
T2  - European Physical Journal C
T1  - Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at √s=13 TeV using the ATLAS detector
SP  - 292
DO  - 10.1140/epjc/s10052-017-4821-x
ER  - 
@article{
author = "Aaboud, M. and Aad, G. and Abbott, B. and Agatonović-Jovin, Tatjana and Bogavac, D. and Bokan, P. and Dimitrievska, A. and Krstic, J. and Marjanovic, M. and Sijacki, Dj. and Simic, Lj. and Vranjes, N. and Vranjes Milosavljevic, M. and Živković, L.",
year = "2017",
abstract = "This article presents measurements of tt¯ differential cross-sections in a fiducial phase-space region, using an integrated luminosity of 3.2 fb- 1 of proton–proton data at a centre-of-mass energy of s=13 TeV recorded by the ATLAS experiment at the LHC in 2015. Differential cross-sections are measured as a function of the transverse momentum and absolute rapidity of the top quark, and of the transverse momentum, absolute rapidity and invariant mass of the tt¯ system. The tt¯ events are selected by requiring one electron and one muon of opposite electric charge, and at least two jets, one of which must be tagged as containing a b-hadron. The measured differential cross-sections are compared to predictions of next-to-leading order generators matched to parton showers and the measurements are found to be consistent with all models within the experimental uncertainties with the exception of the Powheg-Box+ Herwig++ predictions, which differ significantly from the data in both the transverse momentum of the top quark and the mass of the tt¯ system.",
journal = "European Physical Journal C",
title = "Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at √s=13 TeV using the ATLAS detector",
pages = "292",
doi = "10.1140/epjc/s10052-017-4821-x"
}
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, T., Bogavac, D., Bokan, P., Dimitrievska, A., Krstic, J., Marjanovic, M., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M.,& Živković, L.. (2017). Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at √s=13 TeV using the ATLAS detector. in European Physical Journal C, 292.
https://doi.org/10.1140/epjc/s10052-017-4821-x
Aaboud M, Aad G, Abbott B, Agatonović-Jovin T, Bogavac D, Bokan P, Dimitrievska A, Krstic J, Marjanovic M, Sijacki D, Simic L, Vranjes N, Vranjes Milosavljevic M, Živković L. Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at √s=13 TeV using the ATLAS detector. in European Physical Journal C. 2017;:292.
doi:10.1140/epjc/s10052-017-4821-x .
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, Tatjana, Bogavac, D., Bokan, P., Dimitrievska, A., Krstic, J., Marjanovic, M., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M., Živković, L., "Measurements of top-quark pair differential cross-sections in the eμ channel in pp collisions at √s=13 TeV using the ATLAS detector" in European Physical Journal C (2017):292,
https://doi.org/10.1140/epjc/s10052-017-4821-x . .
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Search for heavy resonances decaying to a W or Z boson and a Higgs boson in the qq¯(′)bb¯ final state in pp collisions at √s = 13 TeV with the ATLAS detector

Aaboud, M.; Aad, G.; Abbott, B.; Agatonović-Jovin, Tatjana; Dimitrievska, A.; Krstic, J.; Sijacki, Dj.; Simic, Lj.; Vranjes, N.; Vranjes Milosavljevic, M.; Živković, L.

(2017)

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, Lj.
AU  - Vranjes, N.
AU  - Vranjes Milosavljevic, M.
AU  - Živković, L.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11770
AB  - A search for heavy resonances decaying to a W or Z boson and a Higgs boson in the qq¯(′)bb¯ final state is described. The search uses 36.1 fb−1 of proton–proton collision data at s=13 TeV collected by the ATLAS detector at the CERN Large Hadron Collider in 2015 and 2016. The data are in agreement with the Standard Model expectations, with the largest excess found at a resonance mass of 3.0 TeV with a local (global) significance of 3.3 (2.1) σ. The results are presented in terms of constraints on a simplified model with a heavy vector triplet. Upper limits are set on the production cross-section times branching ratio for resonances decaying to a W (Z) boson and a Higgs boson, itself decaying to bb¯, in the mass range between 1.1 and 3.8 TeV at 95% confidence level; the limits range between 83 and 1.6 fb (77 and 1.1 fb) at 95% confidence level.
T2  - Physics Letters B
T1  - Search for heavy resonances decaying to a W or Z boson and a Higgs boson in the qq¯(′)bb¯ final state in pp collisions at √s = 13 TeV with the ATLAS detector
VL  - 774
SP  - 494
EP  - 515
DO  - 10.1016/j.physletb.2017.09.066
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, Lj. and Vranjes, N. and Vranjes Milosavljevic, M. and Živković, L.",
year = "2017",
abstract = "A search for heavy resonances decaying to a W or Z boson and a Higgs boson in the qq¯(′)bb¯ final state is described. The search uses 36.1 fb−1 of proton–proton collision data at s=13 TeV collected by the ATLAS detector at the CERN Large Hadron Collider in 2015 and 2016. The data are in agreement with the Standard Model expectations, with the largest excess found at a resonance mass of 3.0 TeV with a local (global) significance of 3.3 (2.1) σ. The results are presented in terms of constraints on a simplified model with a heavy vector triplet. Upper limits are set on the production cross-section times branching ratio for resonances decaying to a W (Z) boson and a Higgs boson, itself decaying to bb¯, in the mass range between 1.1 and 3.8 TeV at 95% confidence level; the limits range between 83 and 1.6 fb (77 and 1.1 fb) at 95% confidence level.",
journal = "Physics Letters B",
title = "Search for heavy resonances decaying to a W or Z boson and a Higgs boson in the qq¯(′)bb¯ final state in pp collisions at √s = 13 TeV with the ATLAS detector",
volume = "774",
pages = "494-515",
doi = "10.1016/j.physletb.2017.09.066"
}
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, T., Dimitrievska, A., Krstic, J., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M.,& Živković, L.. (2017). Search for heavy resonances decaying to a W or Z boson and a Higgs boson in the qq¯(′)bb¯ final state in pp collisions at √s = 13 TeV with the ATLAS detector. in Physics Letters B, 774, 494-515.
https://doi.org/10.1016/j.physletb.2017.09.066
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 heavy resonances decaying to a W or Z boson and a Higgs boson in the qq¯(′)bb¯ final state in pp collisions at √s = 13 TeV with the ATLAS detector. in Physics Letters B. 2017;774:494-515.
doi:10.1016/j.physletb.2017.09.066 .
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, Tatjana, Dimitrievska, A., Krstic, J., Sijacki, Dj., Simic, Lj., Vranjes, N., Vranjes Milosavljevic, M., Živković, L., "Search for heavy resonances decaying to a W or Z boson and a Higgs boson in the qq¯(′)bb¯ final state in pp collisions at √s = 13 TeV with the ATLAS detector" in Physics Letters B, 774 (2017):494-515,
https://doi.org/10.1016/j.physletb.2017.09.066 . .
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39

Measurements of top quark spin observables in tt events using dilepton final states in √s=8 TeV pp collisions with the ATLAS detector

Aaboud, M.; Aad, G.; Abbott, B.; Agatonović-Jovin, Tatjana; Bokan, P.; Dimitrievska, A.; Krstic, J.; Marjanovic, M.; Sijacki, Dj.; Simic, Lj.; Vranjes, N.; Milosavljevic, M.; Živković, L.

(2017)

TY  - JOUR
AU  - Aaboud, M.
AU  - Aad, G.
AU  - Abbott, B.
AU  - Agatonović-Jovin, Tatjana
AU  - Bokan, P.
AU  - Dimitrievska, A.
AU  - Krstic, J.
AU  - Marjanovic, M.
AU  - Sijacki, Dj.
AU  - Simic, Lj.
AU  - Vranjes, N.
AU  - Milosavljevic, M.
AU  - Živković, L.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11768
AB  - Measurements of top quark spin observables in tt events are presented based on 20.2 fb(-1) of root s = 8TeV proton-proton collisions recorded with the ATLAS detector at the LHC. The analysis is performed in the dilepton final state, characterised by the presence of two isolated leptons ( electrons or muons). There are 15 observables, each sensitive to a different coefficient of the spin density matrix of tt production, which are measured independently. Ten of these observables are measured for the first time. All of them are corrected for detector resolution and acceptance effects back to the parton and stable-particle levels. The measured values of the observables at parton level are compared to Standard Model predictions at next-to-leading order in QCD. The corrected distributions at stable-particle level are presented and the means of the distributions are compared to Monte Carlo predictions. No significant deviation from the Standard Model is observed for any observable.
T2  - Journal of High Energy Physics
T1  - Measurements of top quark spin observables in tt events using dilepton final states in √s=8 TeV pp collisions with the ATLAS detector
VL  - 2017
IS  - 3
SP  - 113
DO  - 10.1007/JHEP03(2017)113
ER  - 
@article{
author = "Aaboud, M. and Aad, G. and Abbott, B. and Agatonović-Jovin, Tatjana and Bokan, P. and Dimitrievska, A. and Krstic, J. and Marjanovic, M. and Sijacki, Dj. and Simic, Lj. and Vranjes, N. and Milosavljevic, M. and Živković, L.",
year = "2017",
abstract = "Measurements of top quark spin observables in tt events are presented based on 20.2 fb(-1) of root s = 8TeV proton-proton collisions recorded with the ATLAS detector at the LHC. The analysis is performed in the dilepton final state, characterised by the presence of two isolated leptons ( electrons or muons). There are 15 observables, each sensitive to a different coefficient of the spin density matrix of tt production, which are measured independently. Ten of these observables are measured for the first time. All of them are corrected for detector resolution and acceptance effects back to the parton and stable-particle levels. The measured values of the observables at parton level are compared to Standard Model predictions at next-to-leading order in QCD. The corrected distributions at stable-particle level are presented and the means of the distributions are compared to Monte Carlo predictions. No significant deviation from the Standard Model is observed for any observable.",
journal = "Journal of High Energy Physics",
title = "Measurements of top quark spin observables in tt events using dilepton final states in √s=8 TeV pp collisions with the ATLAS detector",
volume = "2017",
number = "3",
pages = "113",
doi = "10.1007/JHEP03(2017)113"
}
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, T., Bokan, P., Dimitrievska, A., Krstic, J., Marjanovic, M., Sijacki, Dj., Simic, Lj., Vranjes, N., Milosavljevic, M.,& Živković, L.. (2017). Measurements of top quark spin observables in tt events using dilepton final states in √s=8 TeV pp collisions with the ATLAS detector. in Journal of High Energy Physics, 2017(3), 113.
https://doi.org/10.1007/JHEP03(2017)113
Aaboud M, Aad G, Abbott B, Agatonović-Jovin T, Bokan P, Dimitrievska A, Krstic J, Marjanovic M, Sijacki D, Simic L, Vranjes N, Milosavljevic M, Živković L. Measurements of top quark spin observables in tt events using dilepton final states in √s=8 TeV pp collisions with the ATLAS detector. in Journal of High Energy Physics. 2017;2017(3):113.
doi:10.1007/JHEP03(2017)113 .
Aaboud, M., Aad, G., Abbott, B., Agatonović-Jovin, Tatjana, Bokan, P., Dimitrievska, A., Krstic, J., Marjanovic, M., Sijacki, Dj., Simic, Lj., Vranjes, N., Milosavljevic, M., Živković, L., "Measurements of top quark spin observables in tt events using dilepton final states in √s=8 TeV pp collisions with the ATLAS detector" in Journal of High Energy Physics, 2017, no. 3 (2017):113,
https://doi.org/10.1007/JHEP03(2017)113 . .
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Probing lepton flavour violation via neutrinoless τ⟶3μ decays with the ATLAS detector

Aad, G.; Abbott, B.; 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.

(2016)

TY  - JOUR
AU  - Aad, G.
AU  - Abbott, B.
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/123456789/11774
AB  - This article presents the sensitivity of theATLAS experiment to the lepton-flavour-violating decays of τ → 3μ. A method utilising the production of τ leptons via W → τν decays is used. This method is applied to the sample of 20.3 fb−1 of pp collision data at a centre-of-mass energy of 8 TeV collected by the ATLAS experiment at the LHC in 2012. No event is observed passing the selection criteria,and the observed (expected) upper limit on the τ lepton branching fraction into three muons,Br(τ → 3μ),is 3.76 × 10−7 (3.94 × 10−7) at 90 % confidence level.
T2  - European Physical Journal C
T1  - Probing lepton flavour violation via neutrinoless τ⟶3μ decays with the ATLAS detector
VL  - 76
IS  - 5
SP  - 232
DO  - 10.1140/epjc/s10052-016-4041-9
ER  - 
@article{
author = "Aad, G. and Abbott, B. 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 = "This article presents the sensitivity of theATLAS experiment to the lepton-flavour-violating decays of τ → 3μ. A method utilising the production of τ leptons via W → τν decays is used. This method is applied to the sample of 20.3 fb−1 of pp collision data at a centre-of-mass energy of 8 TeV collected by the ATLAS experiment at the LHC in 2012. No event is observed passing the selection criteria,and the observed (expected) upper limit on the τ lepton branching fraction into three muons,Br(τ → 3μ),is 3.76 × 10−7 (3.94 × 10−7) at 90 % confidence level.",
journal = "European Physical Journal C",
title = "Probing lepton flavour violation via neutrinoless τ⟶3μ decays with the ATLAS detector",
volume = "76",
number = "5",
pages = "232",
doi = "10.1140/epjc/s10052-016-4041-9"
}
Aad, G., Abbott, B., 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). Probing lepton flavour violation via neutrinoless τ⟶3μ decays with the ATLAS detector. in European Physical Journal C, 76(5), 232.
https://doi.org/10.1140/epjc/s10052-016-4041-9
Aad G, Abbott B, 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. Probing lepton flavour violation via neutrinoless τ⟶3μ decays with the ATLAS detector. in European Physical Journal C. 2016;76(5):232.
doi:10.1140/epjc/s10052-016-4041-9 .
Aad, G., Abbott, B., 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., "Probing lepton flavour violation via neutrinoless τ⟶3μ decays with the ATLAS detector" in European Physical Journal C, 76, no. 5 (2016):232,
https://doi.org/10.1140/epjc/s10052-016-4041-9 . .
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