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Search for low-mass resonances decaying into two jets and produced in association with a photon using $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector

The collaboration
No Journal Information, 2019

Abstract (data abstract)
CERN-LHC. Search for localized excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. Two variants are presented, one which makes no jet flavour requirements and one which requires both jets to be tagged as b-jets. The observed mass distributions are consistent with multi-jet processes in the Standard Model. The data are used to set upper limits on the production cross-section for a benchmark $Z'$ model and, separately, on generic Gaussian-shaped contributions to the distributions, extending the current ATLAS constraints on dijet resonances to the mass range between 200 and 350 GeV.

• #### Table 1

Data from Figure 1a

10.17182/hepdata.85763.v1/t1

Dijet mass distribution for the flavour inclusive category. Data, estimated background and uncertainties are shown. Events are collected using the...

• #### Table 2

Data from Figure 1a

10.17182/hepdata.85763.v1/t2

Dijet mass distribution for the flavour inclusive category. Data, estimated background and uncertainties are shown. Events are collected using the...

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Data from Figure 1b

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Dijet mass distribution for the b-tagged category. Data, estimated background and uncertainties are shown. Events are collected using the single-photon...

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Data from Figure 1b

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Dijet mass distribution for the b-tagged category. Data, estimated background and uncertainties are shown. Events are collected using the combined...

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Data from Figure 3a

10.17182/hepdata.85763.v1/t5

Upper limits on Gaussian-shape contributions to the dijet mass distributions from the flavour-inclusive category and masses below 450 GeV, for...

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Data from Figure 3a

10.17182/hepdata.85763.v1/t6

Upper limits on Gaussian-shape contributions to the dijet mass distributions from the flavour-inclusive category and masses above 450 GeV, for...

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Data from Figure 3b

10.17182/hepdata.85763.v1/t7

Upper limits on Gaussian-shape contributions to the dijet mass distributions from the b-tagged category and masses below 450 GeV, for...

• #### Table 8

Data from Figure 3b

10.17182/hepdata.85763.v1/t8

Upper limits on Gaussian-shape contributions to the dijet mass distributions from the b-tagged category and masses above 450 GeV, for...

• #### Table 9

Data from Figure 10a of auxiliary material

10.17182/hepdata.85763.v1/t9

Kinematic acceptance values predicted for the $Z'$ model as a function of mass $m_{Z'}$ for the flavour-inclusive category using the...

• #### Table 10

Data from Figure 10a of auxiliary material

10.17182/hepdata.85763.v1/t10

Kinematic acceptance values predicted for the $Z'$ model as a function of mass $m_{Z'}$ for the flavour-inclusive category using the...

• #### Table 11

Data from Figure 10b of auxiliary material

10.17182/hepdata.85763.v1/t11

Kinematic acceptance values predicted for the $Z'$ model as a function of mass $m_{Z'}$ for the b-tagged category using the...

• #### Table 12

Data from Figure 10b of auxiliary material

10.17182/hepdata.85763.v1/t12

Kinematic acceptance values predicted for the $Z'$ model as a function of mass $m_{Z'}$ for the b-tagged category using the...

• #### Table 13

Data from Figure 11a of auxiliary material

10.17182/hepdata.85763.v1/t13

Reconstruction efficiency for $Z'$ model, flavour inclusive category, single-photon trigger.

• #### Table 14

Data from Figure 11a of auxiliary material

10.17182/hepdata.85763.v1/t14

Reconstruction efficiency for $Z'$ model, flavour inclusive category, combined trigger.

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Data from Figure 11b of auxiliary material

10.17182/hepdata.85763.v1/t15

Reconstruction efficiency for $Z'$ model, b-tagged category, single-photon trigger.

• #### Table 16

Data from Figure 11b of auxiliary material

10.17182/hepdata.85763.v1/t16

Reconstruction efficiency for $Z'$ model, b-tagged category, combined trigger.