Search for new resonances in mass distributions of jet pairs using 139 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

The ATLAS collaboration
2019.

Abstract (data abstract)
A search for new resonances decaying into a pair of jets is reported using the dataset of proton-proton collisions recorded at $\sqrt{s} = 13$ TeV with the ATLAS detector at the Large Hadron Collider between 2015 and 2018, corresponding to an integrated luminosity of 139 fb$^{-1}$. The distribution of the invariant mass of the two leading jets is examined for local excesses above a data-derived estimate of the Standard Model background. In addition to an inclusive dijet search, events with jets identified as containing b-hadrons are examined specifically. No significant excess of events above the smoothly falling background spectra is observed. The results are used to set cross-section upper limits at 95% confidence level on a range of new physics scenarios. Model-independent limits on Gaussian-shaped signals are also reported. The analysis looking at jets containing b-hadrons benefits from improvements in the jet flavour identification at high transverse momentum, which increases its sensitivity relative to the previous analysis beyond that expected from the higher integrated luminosity.

  • Table 1

    Data from Figure 2

    10.17182/hepdata.91126.v1/t1

    The probability of an event to pass the b-tagging requirement after the rest of the event selection, shown as a...

  • Table 2

    Data from Figure 3a

    10.17182/hepdata.91126.v1/t2

    Dijet invariant mass distribution for the inclusive category with |y*| < 0.6.

  • Table 3

    Data from Figure 3b

    10.17182/hepdata.91126.v1/t3

    Dijet invariant mass distribution for the inclusive category with |y*| < 1.2.

  • Table 4

    Data from Figure 3c

    10.17182/hepdata.91126.v1/t4

    Dijet invariant mass distribution for the category with at least one b-tagged jet.

  • Table 5

    Data from Figure 3d

    10.17182/hepdata.91126.v1/t5

    Dijet invariant mass distribution for the category with both jets b-tagged.

  • Table 6

    Data from Figure 4a

    10.17182/hepdata.91126.v1/t6

    The 95% CL upper limits on the cross-section times acceptance times branching ratio into two jets as a function of...

  • Table 7

    Data from Figure 4b

    10.17182/hepdata.91126.v1/t7

    The 95% CL upper limits on the cross-section times acceptance times branching ratio into two jets as a function of...

  • Table 8

    Data from Figure 4c

    10.17182/hepdata.91126.v1/t8

    The 95% CL upper limits on the cross-section times acceptance times branching ratio into two jets as a function of...

  • Table 9

    Data from Figure 4d

    10.17182/hepdata.91126.v1/t9

    The 95% CL upper limits on the cross-section times acceptance times branching ratio into two jets as a function of...

  • Table 10

    Data from Figure 5

    10.17182/hepdata.91126.v1/t10

    The upper limits on the DM mediator Z' signal at 95% CL from the inclusive category. The 95% CL upper...

  • Table 11

    Data from Figure 6

    10.17182/hepdata.91126.v1/t11

    The 95% CL upper limit on the cross-section times acceptance times b-tagging efficiency times branching ratio as a function of...

  • Table 12

    Data from Figure 7a

    10.17182/hepdata.91126.v1/t12

    The 95% CL upper limit on the cross-section times acceptance times b-tagging efficiency times branching ratio as a function of...

  • Table 13

    Data from Figure 7b

    10.17182/hepdata.91126.v1/t13

    The 95% CL upper limit on the cross-section times acceptance times b-tagging efficiency times branching ratio as a function of...

  • Table 14

    Data from Figure 7c

    10.17182/hepdata.91126.v1/t14

    The 95% CL upper limit on the cross-section times acceptance times b-tagging efficiency times branching ratio as a function of...

  • Table 15

    Data from Figure 8a

    10.17182/hepdata.91126.v1/t15

    The 95% CL upper limit on the cross-section times kinematic acceptance times branching ratio for resonances with a generic Gaussian...

  • Table 16

    Data from Figure 8b

    10.17182/hepdata.91126.v1/t16

    The 95% CL upper limit on the cross-section times kinematic acceptance times b-tagging efficiency times branching ratio for resonances with...

  • Table 17

    Data from Figure 8c

    10.17182/hepdata.91126.v1/t17

    The 95% CL upper limit on the cross-section times kinematic acceptance times b-tagging efficiency times branching ratio for resonances with...

  • Table 18

    Data from Figure 9

    10.17182/hepdata.91126.v1/t18

    The expected 95% CL upper limits on the cross-section times acceptance times b-tagging efficiency times branching ratio as a function...

  • Table 19

    Figure 7 from auxiliary material

    10.17182/hepdata.91126.v1/t19

    Acceptance for the QBH, Q* and W' benchmark signal models in the inclusive category, as a function of the simulated...

  • Table 20

    Figure 8 from auxiliary material

    10.17182/hepdata.91126.v1/t20

    Acceptance for the DM Z' benchmark signal model for various $g_q$ coupling parameters in the inclusive category, as a function...

  • Table 21

    Figure 9 from auxiliary material

    10.17182/hepdata.91126.v1/t21

    Acceptance for the W* benchmark signal model in the inclusive category, as a function of the simulated mass.

  • Table 22

    Figure 10 from auxiliary material

    10.17182/hepdata.91126.v1/t22

    Acceptance times b-tagging efficiency for the b* benchmark signal model in the 1b category, as a function of the simulated...

  • Table 23

    Figure 11 from auxiliary material

    10.17182/hepdata.91126.v1/t23

    Acceptance times b-tagging efficiency for the DM Z' with $g_q$=0.25, SSM Z' and graviton with $k/\overline{M}_{PL}=0.2$ benchmark signal models in...

  • Table 24

    Figure 12 from auxiliary material

    10.17182/hepdata.91126.v1/t24

    The expected 95% CL upper limits on the cross-section times branching ratio as a function of the DM mediator Z'...

Loading Data...

Ask a Question


Your question will be emailed to those involved with the submission. Please mention the relevant table.


Please log in to HEPData to send a question.