TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Andrejkovic, J.
AU  - Bergauer, T.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
AU  - Milošević, Vukašin
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10028
AB  - A search is presented for physics beyond the standard model (SM) using electron or muon pairs with high invariant mass. A data set of proton-proton collisions collected by the CMS experiment at the LHC at     s    $$ \sqrt{s} $$  = 13 TeV from 2016 to 2018 corresponding to a total integrated luminosity of up to 140 fb −1 is analyzed. No significant deviation is observed with respect to the SM background expectations. Upper limits are presented on the ratio of the product of the production cross section and the branching fraction to dileptons of a new narrow resonance to that of the Z boson. These provide the most stringent lower limits to date on the masses for various spin-1 particles, spin-2 gravitons in the Randall-Sundrum model, as well as spin-1 mediators between the SM and dark matter particles. Lower limits on the ultraviolet cutoff parameter are set both for four-fermion contact interactions and for the Arkani-Hamed, Dimopoulos, and Dvali model with large extra dimensions. Lepton flavor universality is tested at the TeV scale for the first time by comparing the dimuon and dielectron mass spectra. No significant deviation from the SM expectation of unity is observed.
T2  - Journal of High Energy Physics
T1  - Search for resonant and nonresonant new phenomena in high-mass dilepton final states at √s = 13 TeV
VL  - 2021
IS  - 7
SP  - 208
DO  - 10.1007/JHEP07(2021)208
ER  - 

@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Andrejkovic, J. and Bergauer, T. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan and Milošević, Vukašin",
year = "2021",
abstract = "A search is presented for physics beyond the standard model (SM) using electron or muon pairs with high invariant mass. A data set of proton-proton collisions collected by the CMS experiment at the LHC at     s    $$ \sqrt{s} $$  = 13 TeV from 2016 to 2018 corresponding to a total integrated luminosity of up to 140 fb −1 is analyzed. No significant deviation is observed with respect to the SM background expectations. Upper limits are presented on the ratio of the product of the production cross section and the branching fraction to dileptons of a new narrow resonance to that of the Z boson. These provide the most stringent lower limits to date on the masses for various spin-1 particles, spin-2 gravitons in the Randall-Sundrum model, as well as spin-1 mediators between the SM and dark matter particles. Lower limits on the ultraviolet cutoff parameter are set both for four-fermion contact interactions and for the Arkani-Hamed, Dimopoulos, and Dvali model with large extra dimensions. Lepton flavor universality is tested at the TeV scale for the first time by comparing the dimuon and dielectron mass spectra. No significant deviation from the SM expectation of unity is observed.",
journal = "Journal of High Energy Physics",
title = "Search for resonant and nonresonant new phenomena in high-mass dilepton final states at √s = 13 TeV",
volume = "2021",
number = "7",
pages = "208",
doi = "10.1007/JHEP07(2021)208"
}

Sirunyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Adžić, P., Đorđević, M., Milenović, P., Milošević, J.,& Milošević, V.. (2021). Search for resonant and nonresonant new phenomena in high-mass dilepton final states at √s = 13 TeV. in Journal of High Energy Physics, 2021(7), 208.
https://doi.org/10.1007/JHEP07(2021)208

Sirunyan A, Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Adžić P, Đorđević M, Milenović P, Milošević J, Milošević V. Search for resonant and nonresonant new phenomena in high-mass dilepton final states at √s = 13 TeV. in Journal of High Energy Physics. 2021;2021(7):208.
doi:10.1007/JHEP07(2021)208 .

Sirunyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, Milošević, Vukašin, "Search for resonant and nonresonant new phenomena in high-mass dilepton final states at √s = 13 TeV" in Journal of High Energy Physics, 2021, no. 7 (2021):208,
https://doi.org/10.1007/JHEP07(2021)208 . .

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Andrejkovic, J.
AU  - Bergauer, T.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10027
AB  - Measurements of Higgs boson production cross sections and couplings in events where the Higgs boson decays into a pair of photons are reported. Events are selected from a sample of proton-proton collisions at     s    $$ \sqrt{s} $$  = 13 TeV collected by the CMS detector at the LHC from 2016 to 2018, corresponding to an integrated luminosity of 137 fb −1. Analysis categories enriched in Higgs boson events produced via gluon fusion, vector boson fusion, vector boson associated production, and production associated with top quarks are constructed. The total Higgs boson signal strength, relative to the standard model (SM) prediction, is measured to be 1.12±0.09. Other properties of the Higgs boson are measured, including SM signal strength modifiers, production cross sections, and its couplings to other particles. These include the most precise measurements of gluon fusion and vector boson fusion Higgs boson production in several different kinematic regions, the first measurement of Higgs boson production in association with a top quark pair in five regions of the Higgs boson transverse momentum, and an upper limit on the rate of Higgs boson production in association with a single top quark. All results are found to be in agreement with the SM expectations.
T2  - Journal of High Energy Physics
T1  - Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at √s = 13 TeV
VL  - 2021
IS  - 7
SP  - 27
DO  - 10.1007/JHEP07(2021)027
ER  - 

@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Andrejkovic, J. and Bergauer, T. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "Measurements of Higgs boson production cross sections and couplings in events where the Higgs boson decays into a pair of photons are reported. Events are selected from a sample of proton-proton collisions at     s    $$ \sqrt{s} $$  = 13 TeV collected by the CMS detector at the LHC from 2016 to 2018, corresponding to an integrated luminosity of 137 fb −1. Analysis categories enriched in Higgs boson events produced via gluon fusion, vector boson fusion, vector boson associated production, and production associated with top quarks are constructed. The total Higgs boson signal strength, relative to the standard model (SM) prediction, is measured to be 1.12±0.09. Other properties of the Higgs boson are measured, including SM signal strength modifiers, production cross sections, and its couplings to other particles. These include the most precise measurements of gluon fusion and vector boson fusion Higgs boson production in several different kinematic regions, the first measurement of Higgs boson production in association with a top quark pair in five regions of the Higgs boson transverse momentum, and an upper limit on the rate of Higgs boson production in association with a single top quark. All results are found to be in agreement with the SM expectations.",
journal = "Journal of High Energy Physics",
title = "Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at √s = 13 TeV",
volume = "2021",
number = "7",
pages = "27",
doi = "10.1007/JHEP07(2021)027"
}

Sirunyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Adžić, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at √s = 13 TeV. in Journal of High Energy Physics, 2021(7), 27.
https://doi.org/10.1007/JHEP07(2021)027

Sirunyan A, Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Adžić P, Đorđević M, Milenović P, Milošević J. Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at √s = 13 TeV. in Journal of High Energy Physics. 2021;2021(7):27.
doi:10.1007/JHEP07(2021)027 .

Sirunyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at √s = 13 TeV" in Journal of High Energy Physics, 2021, no. 7 (2021):27,
https://doi.org/10.1007/JHEP07(2021)027 . .

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Andrejkovic, J.
AU  - Bergauer, T.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10026
AB  - A search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector bosons, using proton–proton collisions at  $$\sqrt{s}=13\,{\text {TeV}} $$     s  = 13  TeV     at the LHC, is reported. The data sample corresponds to an integrated luminosity of 137 $$\,{\text {fb}}^{-1}$$       fb   - 1       collected with the CMS detector. Events are selected by requiring two or three electrons or muons, moderate missing transverse momentum, and two jets with a large rapidity separation and a large dijet mass. No excess of events with respect to the standard model background predictions is observed. Model independent upper limits at 95% confidence level are reported on the product of the cross section and branching fraction for vector boson fusion production of charged Higgs bosons as a function of mass, from 200 to 3000 $$\,{\text {GeV}}$$     GeV    . The results are interpreted in the context of the Georgi–Machacek model.
T2  - European Physical Journal C. Particles and Fields
T1  - Search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector boson pairs in proton–proton collisions at √s=13TeV
VL  - 81
IS  - 8
SP  - 723
DO  - 10.1140/epjc/s10052-021-09472-3
ER  - 

@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Andrejkovic, J. and Bergauer, T. and Adžić, Petar and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "A search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector bosons, using proton–proton collisions at  $$\sqrt{s}=13\,{\text {TeV}} $$     s  = 13  TeV     at the LHC, is reported. The data sample corresponds to an integrated luminosity of 137 $$\,{\text {fb}}^{-1}$$       fb   - 1       collected with the CMS detector. Events are selected by requiring two or three electrons or muons, moderate missing transverse momentum, and two jets with a large rapidity separation and a large dijet mass. No excess of events with respect to the standard model background predictions is observed. Model independent upper limits at 95% confidence level are reported on the product of the cross section and branching fraction for vector boson fusion production of charged Higgs bosons as a function of mass, from 200 to 3000 $$\,{\text {GeV}}$$     GeV    . The results are interpreted in the context of the Georgi–Machacek model.",
journal = "European Physical Journal C. Particles and Fields",
title = "Search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector boson pairs in proton–proton collisions at √s=13TeV",
volume = "81",
number = "8",
pages = "723",
doi = "10.1140/epjc/s10052-021-09472-3"
}

Sirunyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Adžić, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector boson pairs in proton–proton collisions at √s=13TeV. in European Physical Journal C. Particles and Fields, 81(8), 723.
https://doi.org/10.1140/epjc/s10052-021-09472-3

Sirunyan A, Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Adžić P, Đorđević M, Milenović P, Milošević J. Search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector boson pairs in proton–proton collisions at √s=13TeV. in European Physical Journal C. Particles and Fields. 2021;81(8):723.
doi:10.1140/epjc/s10052-021-09472-3 .

Sirunyan, A., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector boson pairs in proton–proton collisions at √s=13TeV" in European Physical Journal C. Particles and Fields, 81, no. 8 (2021):723,
https://doi.org/10.1140/epjc/s10052-021-09472-3 . .

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Bergauer, T.
AU  - Dragicevic, M.
AU  - Adžić, Petar
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10025
AB  - A search is presented for a heavy vector reso- nance decaying into a Z boson and the standard model Higgs boson, where the Z boson is identified through its leptonic decays to electrons, muons, or neutrinos, and the Higgs boson is identified through its hadronic decays. The search is per- formed in a Lorentz-boosted regime and is based on data col- lected from 2016 to 2018 at the CERN LHC, corresponding to an integrated luminosity of 137 fb−1. Upper limits are derived on the production of a narrow heavy resonance Z′, and a mass below 3.5 and 3.7 TeV is excluded at 95% confidence level in models where the heavy vector boson couples predomi- nantly to fermions and to bosons, respectively. These are the most stringent limits placed on the Heavy Vector Triplet Z′ model to date. If the heavy vector boson couples exclusively to standard model bosons, upper limits on the product of the cross section and branching fraction are set between 23 and 0.3 fb for a Z′ mass between 0.8 and 4.6 TeV, respectively. This is the first limit set on a heavy vector boson coupling exclusively to standard model bosons in its production and decay.
T2  - European Physical Journal C. Particles and Fields
T1  - Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s=13Te
VL  - 81
IS  - 8
SP  - 688
DO  - 10.1140/epjc/s10052-021-09348-6
ER  - 

@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Bergauer, T. and Dragicevic, M. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "A search is presented for a heavy vector reso- nance decaying into a Z boson and the standard model Higgs boson, where the Z boson is identified through its leptonic decays to electrons, muons, or neutrinos, and the Higgs boson is identified through its hadronic decays. The search is per- formed in a Lorentz-boosted regime and is based on data col- lected from 2016 to 2018 at the CERN LHC, corresponding to an integrated luminosity of 137 fb−1. Upper limits are derived on the production of a narrow heavy resonance Z′, and a mass below 3.5 and 3.7 TeV is excluded at 95% confidence level in models where the heavy vector boson couples predomi- nantly to fermions and to bosons, respectively. These are the most stringent limits placed on the Heavy Vector Triplet Z′ model to date. If the heavy vector boson couples exclusively to standard model bosons, upper limits on the product of the cross section and branching fraction are set between 23 and 0.3 fb for a Z′ mass between 0.8 and 4.6 TeV, respectively. This is the first limit set on a heavy vector boson coupling exclusively to standard model bosons in its production and decay.",
journal = "European Physical Journal C. Particles and Fields",
title = "Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s=13Te",
volume = "81",
number = "8",
pages = "688",
doi = "10.1140/epjc/s10052-021-09348-6"
}

Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s=13Te. in European Physical Journal C. Particles and Fields, 81(8), 688.
https://doi.org/10.1140/epjc/s10052-021-09348-6

Sirunyan A, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s=13Te. in European Physical Journal C. Particles and Fields. 2021;81(8):688.
doi:10.1140/epjc/s10052-021-09348-6 .

Sirunyan, A., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s=13Te" in European Physical Journal C. Particles and Fields, 81, no. 8 (2021):688,
https://doi.org/10.1140/epjc/s10052-021-09348-6 . .

TY  - JOUR
AU  - Sirunyan, A.
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Ambrogi, F.
AU  - Bergauer, T.
AU  - Adžić, Petar
AU  - Ćirković, Predrag
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9988
AB  - Results of the Model Unspecific Search in CMS (MUSiC), using proton–proton collision data recorded at the LHC at a centre-of-mass energy of 13 $$\,\text {TeV}$$     TeV    , corresponding to an integrated luminosity of 35.9 $$\,\text {fb}^{-1}$$      fb  - 1      , are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.
T2  - European Physical Journal C. Particles and Fields
T1  - MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV
VL  - 81
IS  - 7
SP  - 629
DO  - 10.1140/epjc/s10052-021-09236-z
ER  - 

@article{
author = "Sirunyan, A. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Bergauer, T. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2021",
abstract = "Results of the Model Unspecific Search in CMS (MUSiC), using proton–proton collision data recorded at the LHC at a centre-of-mass energy of 13 $$\,\text {TeV}$$     TeV    , corresponding to an integrated luminosity of 35.9 $$\,\text {fb}^{-1}$$      fb  - 1      , are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.",
journal = "European Physical Journal C. Particles and Fields",
title = "MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV",
volume = "81",
number = "7",
pages = "629",
doi = "10.1140/epjc/s10052-021-09236-z"
}

Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2021). MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV. in European Physical Journal C. Particles and Fields, 81(7), 629.
https://doi.org/10.1140/epjc/s10052-021-09236-z

Sirunyan A, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV. in European Physical Journal C. Particles and Fields. 2021;81(7):629.
doi:10.1140/epjc/s10052-021-09236-z .

Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "MUSiC: a model-unspecific search for new physics in proton–proton collisions at √s=13TeV" in European Physical Journal C. Particles and Fields, 81, no. 7 (2021):629,
https://doi.org/10.1140/epjc/s10052-021-09236-z . .