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High-$E_{\rm T}$ isolated-photon plus jets production in $pp$ collisions at $\sqrt s=$ 8 TeV with the ATLAS detector

The ATLAS collaboration
Nucl.Phys. B918 (2017) 257-316, 2017

Abstract (data abstract)
CERN-LHC. Measurements of the cross section for prompt photon plus jet production in proton-proton collisions at a centre-of-mass energy of 8 TeV with 20.2/fb of data collected in 2012. The photon is required to have a transverse energy above 130 GeV and absolute value of pseudorapity |etaGamma|<2.37, excluding the region 1.37<|etaGamma|<1.56. The photon isolation is ensured by requiring the transverse energy around a cone of radius R=0.4 around the photon to be less than 10 GeV. At particle level it is the sum of transverse energy from all particles, except for muons, neutrinos and the photon itself. At parton level it is the sum of energy from all coloured partons. Jets are reconstructed using the anti-kt algorithm with radius parameter R=0.6 and required to have the jet rapidity in the range |yjet|<4.4 and the distance between the jet and the photon DeltaR(gamma jet)>1. The requirements on the jet transverse momenta depend on the sample and are as follows. Photon+1jet sample (tables 1 and 2): pTjet1 > 100 GeV. Photon+1jet sample (tables 3 to 13): pTjet1 > 100 GeV, |yjet1| < 2.37, |costhetastar| < 0.83 and |etaGamma + yjet1| < 2.37 and mgammajet1 > 467 GeV. Photon+2jet sample (tables 14 to 17): pTjet1 > 100 GeV and pTjet2 > 65 GeV. Photon+2jet sample (tables 18 and 20): pTjet1 > 100 GeV, pTjet2 > 65 GeV and 130 < ETGamma < 300 GeV. Photon+2jet sample (tables 19 and 21): pTjet1 > 100 GeV, pTjet2 > 65 GeV and ETGamma > 300 GeV. Photon+2jet sample (table 22): pTjet1 > 130 GeV, pTjet2 > 50 GeV, Delta R(gamma jet1) > 3, 1 < Delta R(jet1 jet2) < 1.5 and |etajet1| < 2.37. Photon+2jet sample (table 23): pTjet1 > 130 GeV, pTjet2 > 50 GeV, Delta R(gamma jet1) > 3, 1 < Delta R(gamma jet2) < 1.5, |etajet1| < 2.37 and pTjet2 < ETGamma. Photon+2jet sample (table 24): ratio of cross sections in tables 22 and 23. Photon+3jet sample (tables 25 to 29): pTjet1 > 100 GeV, pTjet2 > 65 GeV and pTjet3 > 50 GeV. Photon+3jet sample (tables 30, 32 and 34): pTjet1 > 100 GeV, pTjet2 > 65 GeV, pTjet3 > 50 GeV and 130 < ETGamma < 300 GeV. Photon+3jet sample (tables 31, 33 and 35): pTjet1 > 100 GeV, pTjet2 > 65 GeV, pTjet3 > 50 GeV and ETGamma > 300 GeV.

  • Table 1

    Data from Figures 3a and 4a

    10.17182/hepdata.79948.v1/t1

    Measured cross sections for isolated-photon plus 1jet production as a function of $E_{\rm T}^{\gamma}$.

  • Table 2

    Data from Figures 3b and 4b

    10.17182/hepdata.79948.v1/t2

    Measured cross sections for isolated-photon plus 1jet production as a function of $p_{\rm T}^{\rm jet1}$.

  • Table 3

    Data from Figures 3c and 4c

    10.17182/hepdata.79948.v1/t3

    Measured cross sections for isolated-photon plus 1jet production as a function of $m^{\gamma-\rm jet1}$.

  • Table 4

    Data from Figures 3d and 4d

    10.17182/hepdata.79948.v1/t4

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$.

  • Table 5

    Data from Figures 5a, 6a and 7a

    10.17182/hepdata.79948.v1/t5

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$ for the range $467 < m^{\gamma-\rm jet1}...

  • Table 6

    Data from Figures 5b, 6b and 7b

    10.17182/hepdata.79948.v1/t6

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$ for the range $510 < m^{\gamma-\rm jet1}...

  • Table 7

    Data from Figures 5c, 6c and 7c

    10.17182/hepdata.79948.v1/t7

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$ for the range $590 < m^{\gamma-\rm jet1}...

  • Table 8

    Data from Figures 5d, 6d and 7d

    10.17182/hepdata.79948.v1/t8

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$ for the range $670 < m^{\gamma-\rm jet1}...

  • Table 9

    Data from Figures 5e, 6e and 7e

    10.17182/hepdata.79948.v1/t9

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$ for the range $760 < m^{\gamma-\rm jet1}...

  • Table 10

    Data from Figures 5f, 6f and 7f

    10.17182/hepdata.79948.v1/t10

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$ for the range $850 < m^{\gamma-\rm jet1}...

  • Table 11

    Data from Figures 5g, 6g and 7g

    10.17182/hepdata.79948.v1/t11

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$ for the range $0.95 < m^{\gamma-\rm jet1}...

  • Table 12

    Data from Figures 5h, 6h and 7h

    10.17182/hepdata.79948.v1/t12

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$ for the range $1.05 < m^{\gamma-\rm jet1}...

  • Table 13

    Data from Figures 5i, 6i and 7i

    10.17182/hepdata.79948.v1/t13

    Measured cross sections for isolated-photon plus 1jet production as a function of $|\cos\theta^{\star}|$ for the range $1.25 < m^{\gamma-\rm jet1}...

  • Table 14

    Data from Figures 8a and 9a

    10.17182/hepdata.79948.v1/t14

    Measured cross sections for isolated-photon plus 2jet production as a function of $E_{\rm T}^{\gamma}$.

  • Table 15

    Data from Figures 8b and 9b

    10.17182/hepdata.79948.v1/t15

    Measured cross sections for isolated-photon plus 2jet production as a function of $p_{\rm T}^{\rm jet2}$.

  • Table 16

    Data from Figures 8c and 9c

    10.17182/hepdata.79948.v1/t16

    Measured cross sections for isolated-photon plus 2jet production as a function of $\Delta\phi^{\rm \gamma-jet2}$.

  • Table 17

    Data from Figures 8d and 9d

    10.17182/hepdata.79948.v1/t17

    Measured cross sections for isolated-photon plus 2jet production as a function of $\Delta\phi^{\rm jet1-jet2}$.

  • Table 18

    Data from Figures 10a and 11a

    10.17182/hepdata.79948.v1/t18

    Measured cross sections for isolated-photon plus 2jet production as a function of $\Delta\phi^{\rm \gamma-jet2}$ for the range $130< E_{\rm T}^{\gamma}...

  • Table 19

    Data from Figures 10b and 11b

    10.17182/hepdata.79948.v1/t19

    Measured cross sections for isolated-photon plus 2jet production as a function of $\Delta\phi^{\rm \gamma-jet2}$ for the range $E_{\rm T}^{\gamma} >300$...

  • Table 20

    Data from Figures 10c and 11c

    10.17182/hepdata.79948.v1/t20

    Measured cross sections for isolated-photon plus 2jet production as a function of $\Delta\phi^{\rm jet1-jet2}$ for the range $130< E_{\rm T}^{\gamma}...

  • Table 21

    Data from Figures 10d and 11d

    10.17182/hepdata.79948.v1/t21

    Measured cross sections for isolated-photon plus 2jet production as a function of $\Delta\phi^{\rm jet1-jet2}$ for the range $E_{\rm T}^{\gamma} >300$...

  • Table 22

    Data from Figure 12a

    10.17182/hepdata.79948.v1/t22

    Measured cross sections for isolated-photon plus 2jet production as a function of $\beta^{\rm jet1}$.

  • Table 23

    Data from Figure 12a

    10.17182/hepdata.79948.v1/t23

    Measured cross sections for isolated-photon plus 2jet production as a function of $\beta^{\gamma}$.

  • Table 24

    Data from Figure 12b

    10.17182/hepdata.79948.v1/t24

    Ratio of measured cross sections for isolated-photon plus 2jet production as a function of $\beta$.

  • Table 25

    Data from Figures 13a and 14a

    10.17182/hepdata.79948.v1/t25

    Measured cross sections for isolated-photon plus 3jet production as a function of $E_{\rm T}^{\gamma}$.

  • Table 26

    Data from Figures 13b and 14b

    10.17182/hepdata.79948.v1/t26

    Measured cross sections for isolated-photon plus 3jet production as a function of $p_{\rm T}^{\rm jet3}$.

  • Table 27

    Data from Figures 13c and 14c

    10.17182/hepdata.79948.v1/t27

    Measured cross sections for isolated-photon plus 3jet production as a function of $\Delta\phi^{\rm \gamma-jet3}$.

  • Table 28

    Data from Figures 13d and 14d

    10.17182/hepdata.79948.v1/t28

    Measured cross sections for isolated-photon plus 3jet production as a function of $\Delta\phi^{\rm jet1-jet3}$.

  • Table 29

    Data from Figures 13e and 14e

    10.17182/hepdata.79948.v1/t29

    Measured cross sections for isolated-photon plus 3jet production as a function of $\Delta\phi^{\rm jet2-jet3}$.

  • Table 30

    Data from Figures 15a and 16a

    10.17182/hepdata.79948.v1/t30

    Measured cross sections for isolated-photon plus 3jet production as a function of $\Delta\phi^{\rm \gamma-jet3}$ for the range $130< E_{\rm T}^{\gamma}...

  • Table 31

    Data from Figures 15b and 16b

    10.17182/hepdata.79948.v1/t31

    Measured cross sections for isolated-photon plus 3jet production as a function of $\Delta\phi^{\rm \gamma-jet3}$ for the range $E_{\rm T}^{\gamma} >300$...

  • Table 32

    Data from Figures 15c and 16c

    10.17182/hepdata.79948.v1/t32

    Measured cross sections for isolated-photon plus 3jet production as a function of $\Delta\phi^{\rm jet1-jet3}$ for the range $130< E_{\rm T}^{\gamma}...

  • Table 33

    Data from Figures 15d and 16d

    10.17182/hepdata.79948.v1/t33

    Measured cross sections for isolated-photon plus 3jet production as a function of $\Delta\phi^{\rm jet1-jet3}$ for the range $E_{\rm T}^{\gamma} >300$...

  • Table 34

    Data from Figures 15e and 16e

    10.17182/hepdata.79948.v1/t34

    Measured cross sections for isolated-photon plus 3jet production as a function of $\Delta\phi^{\rm jet2-jet3}$ for the range $130< E_{\rm T}^{\gamma}...

  • Table 35

    Data from Figures 15f and 16f

    10.17182/hepdata.79948.v1/t35

    Measured cross sections for isolated-photon plus 3jet production as a function of $\Delta\phi^{\rm jet2-jet3}$ for the range $E_{\rm T}^{\gamma} >300$...

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