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23,442 Research products

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  • Authors: ATLAS Collaboration;

    CERN-LHC. A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this search were recorded in 2015 and 2016 by the ATLAS experiment in $\sqrt{s}=13\mathrm{\ Te\kern -0.1em V}$ proton--proton collisions at the Large Hadron Collider, corresponding to an integrated luminosity of 36.1 fb$^{-1}$. The results are interpreted in the context of various models where squarks and gluinos are pair-produced and the neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 2.03$\mathrm{\ Te\kern -0.1em V}$ for a simplified model incorporating only a gluino and the lightest neutralino, assuming the lightest neutralino is massless. For a simplified model involving the strong production of mass-degenerate first- and second-generation squarks, squark masses below 1.55$\mathrm{\ Te\kern -0.1em V}$ are excluded if the lightest neutralino is massless. These limits substantially extend the region of supersymmetric parameter space previously excluded by searches with the ATLAS detector. Signal region efficiency for simplified model with gluino pair production and decays to two quarks and chargino in SR RJR-G4.

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2018
    Data sources: Datacite
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      HEPData
      Dataset . 2018
      Data sources: Datacite
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  • Authors: ATLAS Collaboration;

    CERN-LHC. A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this search were recorded in 2015 and 2016 by the ATLAS experiment in $\sqrt{s}=13\mathrm{\ Te\kern -0.1em V}$ proton--proton collisions at the Large Hadron Collider, corresponding to an integrated luminosity of 36.1 fb$^{-1}$. The results are interpreted in the context of various models where squarks and gluinos are pair-produced and the neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 2.03$\mathrm{\ Te\kern -0.1em V}$ for a simplified model incorporating only a gluino and the lightest neutralino, assuming the lightest neutralino is massless. For a simplified model involving the strong production of mass-degenerate first- and second-generation squarks, squark masses below 1.55$\mathrm{\ Te\kern -0.1em V}$ are excluded if the lightest neutralino is massless. These limits substantially extend the region of supersymmetric parameter space previously excluded by searches with the ATLAS detector. Signal region efficiency for simplified model with gluino pair production and direct decays to two quarks and neutralino in SR RJR-S3a.

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2018
    Data sources: Datacite
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      HEPDataarrow_drop_down
      HEPData
      Dataset . 2018
      Data sources: Datacite
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  • Authors: NA62 Collaboration;

    Upper limits at 90% CL for the elements of the extended neutrino mixing matrix |Ue4|^2 and |Umu4|^2 depending on the assumed heavy neutral lepton mass. Upper limits on |U_mu4|^2 vs assumed neutrino mass [MeV].

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2018
    Data sources: Datacite
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      HEPDataarrow_drop_down
      HEPData
      Dataset . 2018
      Data sources: Datacite
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  • Authors: ATLAS Collaboration;

    This paper presents results of searches for electroweak production of supersymmetric particles in models with compressed mass spectra. The searches use 139/fb of sqrt(s) = 13 TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider. Events with missing transverse momentum and two same-flavor, oppositely charged, low transverse momentum leptons are selected, and are further categorized by the presence of hadronic activity from initial-state radiation or a topology compatible with vector-boson fusion processes. The data are found to be consistent with predictions from the Standard Model. The results are interpreted using simplified models of R-parity-conserving supersymmetry in which the lightest supersymmetric partner is a neutralino with a mass similar to the lightest chargino, the second-to-lightest neutralino or the slepton. Lower limits on the masses of charginos in different simplified models range from 193 GeV to 240 GeV for moderate mass splittings, and extend down to mass splittings of 1.5 GeV to 2.4 GeV at the LEP chargino bounds (92.4 GeV). Similar lower limits on degenerate light-flavor sleptons extend up to masses of 251 GeV and down to mass splittings of 550 MeV. Constraints on vector-boson fusion production of electroweak SUSY states are also presented. Acceptance (note the $z$-axis is in units of $10^{-4}$) for the N2N1 VBF higgsino process in the SR-VBF-high region. Truth dilepton invariant mass is constrained to be within the range [1,40] GeV.

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2021
    Data sources: Datacite
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      HEPDataarrow_drop_down
      HEPData
      Dataset . 2021
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  • Authors: Veinot, Alex J.; Todd, Angela D. K.; Masuda, Jason D.;

    An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures. Related Article: Alex J. Veinot, Angela D. K. Todd, and Jason D. Masuda|2017|Angew.Chem.,Int.Ed.|56|11615|doi:10.1002/anie.201706398

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  • Authors: Marczenko, Katherine M.; Zurakowski, Joseph A.; Kindervater, Marcus B.; Jee, Samantha; +7 Authors

    Related Article: Katherine M. Marczenko, Joseph A. Zurakowski, Marcus B. Kindervater, Samantha Jee, Toren Hynes, Nicholas Roberts, Seoyeon Park, Ulrike Werner-Zwanziger, Michael Lumsden, David N. Langelaan, Saurabh S. Chitnis|2019|Chem.-Eur.J.|25|16414|doi:10.1002/chem.201904361

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  • Authors: ATLAS Collaboration;

    Data from FigAux 102e. The full covariance matrices for the all-particle $z_g$ distribution for anti-kt R=0.8 jets with $p_T$ > 300 GeV, after the soft drop algorithm is applied for $\beta$ = 1, in data. The distributions are normalized to the integrated cross section, $\sigma$. Each set of 10 bins corresponds to one $p_T$ bin in {300, 400, 600, 800, 1000, infinity } and 10 evenly spaced bins in $z_g$ from 0.0 to 0.5. Unfolded soft drop jet mass distributions for dijet events.

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2021
    Data sources: Datacite
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      HEPDataarrow_drop_down
      HEPData
      Dataset . 2021
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  • Authors: Riley, Robert D.; Dickie, Diane A.; Land, Michael A.; Kemp, Richard A.; +4 Authors

    Related Article: Robert D. Riley, Diane A. Dickie, Michael A. Land, Richard A. Kemp, Charles L. B. Macdonald, Ulrike Werner‐Zwanziger, Katherine N. Robertson, Jason A. C. Clyburne|2020|Chem.-Eur.J.|26|7711|doi:10.1002/chem.202001295

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  • Authors: ATLAS Collaboration;

    CERN-LHC. A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this search were recorded in 2015 and 2016 by the ATLAS experiment in $\sqrt{s}=13\mathrm{\ Te\kern -0.1em V}$ proton--proton collisions at the Large Hadron Collider, corresponding to an integrated luminosity of 36.1 fb$^{-1}$. The results are interpreted in the context of various models where squarks and gluinos are pair-produced and the neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 2.03$\mathrm{\ Te\kern -0.1em V}$ for a simplified model incorporating only a gluino and the lightest neutralino, assuming the lightest neutralino is massless. For a simplified model involving the strong production of mass-degenerate first- and second-generation squarks, squark masses below 1.55$\mathrm{\ Te\kern -0.1em V}$ are excluded if the lightest neutralino is massless. These limits substantially extend the region of supersymmetric parameter space previously excluded by searches with the ATLAS detector. Signal region efficiency for simplified model with squark pair production and direct decays to a quark and neutralino in SR Meff-2j-2000.

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2018
    Data sources: Datacite
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      HEPDataarrow_drop_down
      HEPData
      Dataset . 2018
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  • Authors: Choudhary, Neha; Jaraquemada-Peláez, Marı́a de Guadalupe; Zarschler, Kristof; Wang, Xiaozhu; +4 Authors

    Related Article: Neha Choudhary, Marı́a de Guadalupe Jaraquemada-Peláez, Kristof Zarschler, Xiaozhu Wang, Valery Radchenko, Manja Kubeil, Holger Stephan, Chris Orvig|2020|Inorg.Chem.|59|5728|doi:10.1021/acs.inorgchem.0c00509

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23,442 Research products
  • Authors: ATLAS Collaboration;

    CERN-LHC. A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this search were recorded in 2015 and 2016 by the ATLAS experiment in $\sqrt{s}=13\mathrm{\ Te\kern -0.1em V}$ proton--proton collisions at the Large Hadron Collider, corresponding to an integrated luminosity of 36.1 fb$^{-1}$. The results are interpreted in the context of various models where squarks and gluinos are pair-produced and the neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 2.03$\mathrm{\ Te\kern -0.1em V}$ for a simplified model incorporating only a gluino and the lightest neutralino, assuming the lightest neutralino is massless. For a simplified model involving the strong production of mass-degenerate first- and second-generation squarks, squark masses below 1.55$\mathrm{\ Te\kern -0.1em V}$ are excluded if the lightest neutralino is massless. These limits substantially extend the region of supersymmetric parameter space previously excluded by searches with the ATLAS detector. Signal region efficiency for simplified model with gluino pair production and decays to two quarks and chargino in SR RJR-G4.

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2018
    Data sources: Datacite
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      HEPDataarrow_drop_down
      HEPData
      Dataset . 2018
      Data sources: Datacite
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  • Authors: ATLAS Collaboration;

    CERN-LHC. A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing hadronic jets and missing transverse momentum, but no electrons or muons, is presented. The data used in this search were recorded in 2015 and 2016 by the ATLAS experiment in $\sqrt{s}=13\mathrm{\ Te\kern -0.1em V}$ proton--proton collisions at the Large Hadron Collider, corresponding to an integrated luminosity of 36.1 fb$^{-1}$. The results are interpreted in the context of various models where squarks and gluinos are pair-produced and the neutralino is the lightest supersymmetric particle. An exclusion limit at the 95% confidence level on the mass of the gluino is set at 2.03$\mathrm{\ Te\kern -0.1em V}$ for a simplified model incorporating only a gluino and the lightest neutralino, assuming the lightest neutralino is massless. For a simplified model involving the strong production of mass-degenerate first- and second-generation squarks, squark masses below 1.55$\mathrm{\ Te\kern -0.1em V}$ are excluded if the lightest neutralino is massless. These limits substantially extend the region of supersymmetric parameter space previously excluded by searches with the ATLAS detector. Signal region efficiency for simplified model with gluino pair production and direct decays to two quarks and neutralino in SR RJR-S3a.

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2018
    Data sources: Datacite
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      HEPDataarrow_drop_down
      HEPData
      Dataset . 2018
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  • Authors: NA62 Collaboration;

    Upper limits at 90% CL for the elements of the extended neutrino mixing matrix |Ue4|^2 and |Umu4|^2 depending on the assumed heavy neutral lepton mass. Upper limits on |U_mu4|^2 vs assumed neutrino mass [MeV].

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2018
    Data sources: Datacite
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      HEPDataarrow_drop_down
      HEPData
      Dataset . 2018
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  • Authors: ATLAS Collaboration;

    This paper presents results of searches for electroweak production of supersymmetric particles in models with compressed mass spectra. The searches use 139/fb of sqrt(s) = 13 TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider. Events with missing transverse momentum and two same-flavor, oppositely charged, low transverse momentum leptons are selected, and are further categorized by the presence of hadronic activity from initial-state radiation or a topology compatible with vector-boson fusion processes. The data are found to be consistent with predictions from the Standard Model. The results are interpreted using simplified models of R-parity-conserving supersymmetry in which the lightest supersymmetric partner is a neutralino with a mass similar to the lightest chargino, the second-to-lightest neutralino or the slepton. Lower limits on the masses of charginos in different simplified models range from 193 GeV to 240 GeV for moderate mass splittings, and extend down to mass splittings of 1.5 GeV to 2.4 GeV at the LEP chargino bounds (92.4 GeV). Similar lower limits on degenerate light-flavor sleptons extend up to masses of 251 GeV and down to mass splittings of 550 MeV. Constraints on vector-boson fusion production of electroweak SUSY states are also presented. Acceptance (note the $z$-axis is in units of $10^{-4}$) for the N2N1 VBF higgsino process in the SR-VBF-high region. Truth dilepton invariant mass is constrained to be within the range [1,40] GeV.

    HEPDataarrow_drop_down
    HEPData
    Dataset . 2021
    Data sources: Datacite
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      HEPDataarrow_drop_down
      HEPData
      Dataset . 2021
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  • Authors: Veinot, Alex J.; Todd, Angela D. K.; Masuda, Jason D.;

    An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures. Related Article: Alex J. Veinot, Angela D. K. Todd, and Jason D. Masuda|2017|Angew.Chem.,Int.Ed.|56|11615|doi:10.1002/anie.201706398

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  • Authors: Marczenko, Katherine M.; Zurakowski, Joseph A.; Kindervater, Marcus B.; Jee, Samantha; +7 Authors

    Related Article: Katherine M. Marczenko, Joseph A. Zurakowski, Marcus B. Kindervater, Samantha Jee, Toren Hynes, Nicholas Roberts, Seoyeon Park, Ulrike Werner-Zwanziger, Michael Lumsden, David N. Langelaan, Saurabh S. Chitnis|2019|Chem.-Eur.J.|25|16414|doi:10.1002/chem.201904361

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  • Authors: ATLAS Collaboration;