TY  - JOUR
AU  - Sirunyan, A. M.
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/123456789/9855
AB  - Production cross sections of the Higgs boson are measured in the  $${\mathrm{H}} \rightarrow {\mathrm{Z}} {\mathrm{Z}} \rightarrow 4\ell $$    H → Z Z → 4 ℓ     ( $$\ell ={\mathrm{e}},{{{\upmu }}_{\mathrm{}}^{\mathrm{}}} $$    ℓ = e ,  μ         ) decay channel. A data sample of proton–proton collisions at a center-of-mass energy of 13 $$\,\text {TeV}$$     TeV    , collected by the CMS detector at the LHC and corresponding to an integrated luminosity of 137 $$\,\text {fb}^{-1}$$      fb  - 1       is used. The signal strength modifier  $$\mu $$   μ   , defined as the ratio of the Higgs boson production rate in the  $$4\ell $$    4 ℓ     channel to the standard model (SM) expectation, is measured to be  $$\mu =0.94 \pm 0.07 \,\text {(stat)} ^{+0.09}_{-0.08} \,\text {(syst)} $$    μ = 0.94 ± 0.07   (stat)  - 0.08   + 0.09    (syst)     at a fixed value of  $$m_{{\mathrm{H}}} = 125.38\,\text {GeV} $$     m H  = 125.38  GeV    . The signal strength modifiers for the individual Higgs boson production modes are also reported. The inclusive fiducial cross section for the  $${\mathrm{H}} \rightarrow 4\ell $$    H → 4 ℓ     process is measured to be  $$2.84^{+0.23}_{-0.22} \,\text {(stat)} ^{+0.26}_{-0.21} \,\text {(syst)} \,\text {fb} $$    2 .  84  - 0.22   + 0.23     (stat)  - 0.21   + 0.26    (syst)  fb    , which is compatible with the SM prediction of  $$2.84 \pm 0.15 \,\text {fb} $$    2.84 ± 0.15  fb     for the same fiducial region. Differential cross sections as a function of the transverse momentum and rapidity of the Higgs boson, the number of associated jets, and the transverse momentum of the leading associated jet are measured. A new set of cross section measurements in mutually exclusive categories targeted to identify production mechanisms and kinematical features of the events is presented. The results are in agreement with the SM predictions.
T2  - European Physical Journal C. Particles and Fields
T1  - Measurements of production cross sections of the Higgs boson in the four-lepton final state in proton–proton collisions at √s=13Te
VL  - 81
IS  - 6
SP  - 488
DO  - 10.1140/epjc/s10052-021-09200-x
ER  - 

@article{
author = "Sirunyan, A. M. 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 = "Production cross sections of the Higgs boson are measured in the  $${\mathrm{H}} \rightarrow {\mathrm{Z}} {\mathrm{Z}} \rightarrow 4\ell $$    H → Z Z → 4 ℓ     ( $$\ell ={\mathrm{e}},{{{\upmu }}_{\mathrm{}}^{\mathrm{}}} $$    ℓ = e ,  μ         ) decay channel. A data sample of proton–proton collisions at a center-of-mass energy of 13 $$\,\text {TeV}$$     TeV    , collected by the CMS detector at the LHC and corresponding to an integrated luminosity of 137 $$\,\text {fb}^{-1}$$      fb  - 1       is used. The signal strength modifier  $$\mu $$   μ   , defined as the ratio of the Higgs boson production rate in the  $$4\ell $$    4 ℓ     channel to the standard model (SM) expectation, is measured to be  $$\mu =0.94 \pm 0.07 \,\text {(stat)} ^{+0.09}_{-0.08} \,\text {(syst)} $$    μ = 0.94 ± 0.07   (stat)  - 0.08   + 0.09    (syst)     at a fixed value of  $$m_{{\mathrm{H}}} = 125.38\,\text {GeV} $$     m H  = 125.38  GeV    . The signal strength modifiers for the individual Higgs boson production modes are also reported. The inclusive fiducial cross section for the  $${\mathrm{H}} \rightarrow 4\ell $$    H → 4 ℓ     process is measured to be  $$2.84^{+0.23}_{-0.22} \,\text {(stat)} ^{+0.26}_{-0.21} \,\text {(syst)} \,\text {fb} $$    2 .  84  - 0.22   + 0.23     (stat)  - 0.21   + 0.26    (syst)  fb    , which is compatible with the SM prediction of  $$2.84 \pm 0.15 \,\text {fb} $$    2.84 ± 0.15  fb     for the same fiducial region. Differential cross sections as a function of the transverse momentum and rapidity of the Higgs boson, the number of associated jets, and the transverse momentum of the leading associated jet are measured. A new set of cross section measurements in mutually exclusive categories targeted to identify production mechanisms and kinematical features of the events is presented. The results are in agreement with the SM predictions.",
journal = "European Physical Journal C. Particles and Fields",
title = "Measurements of production cross sections of the Higgs boson in the four-lepton final state in proton–proton collisions at √s=13Te",
volume = "81",
number = "6",
pages = "488",
doi = "10.1140/epjc/s10052-021-09200-x"
}

Sirunyan, A. M., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Adžić, P., Đorđević, M., Milenović, P., Milošević, J.,& Milošević, V.. (2021). Measurements of production cross sections of the Higgs boson in the four-lepton final state in proton–proton collisions at √s=13Te. in European Physical Journal C. Particles and Fields, 81(6), 488.
https://doi.org/10.1140/epjc/s10052-021-09200-x

Sirunyan AM, Tumasyan A, Adam W, Andrejkovic J, Bergauer T, Adžić P, Đorđević M, Milenović P, Milošević J, Milošević V. Measurements of production cross sections of the Higgs boson in the four-lepton final state in proton–proton collisions at √s=13Te. in European Physical Journal C. Particles and Fields. 2021;81(6):488.
doi:10.1140/epjc/s10052-021-09200-x .

Sirunyan, A. M., Tumasyan, A., Adam, W., Andrejkovic, J., Bergauer, T., Adžić, Petar, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, Milošević, Vukašin, "Measurements of production cross sections of the Higgs boson in the four-lepton final state in proton–proton collisions at √s=13Te" in European Physical Journal C. Particles and Fields, 81, no. 6 (2021):488,
https://doi.org/10.1140/epjc/s10052-021-09200-x . .

TY  - JOUR
AU  - Sirunyan, A. M.
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  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9574
AB  - Evidence is presented for the electroweak (EW) production of two jets (jj) in association with two Z bosons and constraints on anomalous quartic gauge couplings are set. The analysis is based on a data sample of proton-proton collisions at s=13TeV collected with the CMS detector in 2016–2018, and corresponding to an integrated luminosity of 137fb−1. The search is performed in the fully leptonic final state ZZ→ℓℓℓ′ℓ′, where ℓ,ℓ′=e,μ. The EW production of two jets in association with two Z bosons is measured with an observed (expected) significance of 4.0 (3.5) standard deviations. The cross sections for the EW production are measured in three fiducial volumes and the result is σEW(pp→ZZjj→ℓℓℓ′ℓ′jj)=0.33−0.10+0.11(stat)−0.03+0.04(syst)fb in the most inclusive volume, in agreement with the standard model prediction of 0.275±0.021fb. Measurements of total cross sections for jj production in association with two Z bosons are also reported. Limits on anomalous quartic gauge couplings are derived in terms of the effective field theory operators T0, T1, T2, T8, and T9.
T2  - Physics Letters B
T1  - Evidence for electroweak production of four charged leptons and two jets in proton-proton collisions at s=13TeV
VL  - 962 C
DO  - 10.1016/j.physletb.2020.135992
ER  - 

@article{
author = "Sirunyan, A. M. 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 = "2020",
abstract = "Evidence is presented for the electroweak (EW) production of two jets (jj) in association with two Z bosons and constraints on anomalous quartic gauge couplings are set. The analysis is based on a data sample of proton-proton collisions at s=13TeV collected with the CMS detector in 2016–2018, and corresponding to an integrated luminosity of 137fb−1. The search is performed in the fully leptonic final state ZZ→ℓℓℓ′ℓ′, where ℓ,ℓ′=e,μ. The EW production of two jets in association with two Z bosons is measured with an observed (expected) significance of 4.0 (3.5) standard deviations. The cross sections for the EW production are measured in three fiducial volumes and the result is σEW(pp→ZZjj→ℓℓℓ′ℓ′jj)=0.33−0.10+0.11(stat)−0.03+0.04(syst)fb in the most inclusive volume, in agreement with the standard model prediction of 0.275±0.021fb. Measurements of total cross sections for jj production in association with two Z bosons are also reported. Limits on anomalous quartic gauge couplings are derived in terms of the effective field theory operators T0, T1, T2, T8, and T9.",
journal = "Physics Letters B",
title = "Evidence for electroweak production of four charged leptons and two jets in proton-proton collisions at s=13TeV",
volume = "962 C",
doi = "10.1016/j.physletb.2020.135992"
}

Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2020). Evidence for electroweak production of four charged leptons and two jets in proton-proton collisions at s=13TeV. in Physics Letters B, 962 C.
https://doi.org/10.1016/j.physletb.2020.135992

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Evidence for electroweak production of four charged leptons and two jets in proton-proton collisions at s=13TeV. in Physics Letters B. 2020;962 C.
doi:10.1016/j.physletb.2020.135992 .

Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Evidence for electroweak production of four charged leptons and two jets in proton-proton collisions at s=13TeV" in Physics Letters B, 962 C (2020),
https://doi.org/10.1016/j.physletb.2020.135992 . .