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Measurement of the dependence of transverse energy production at large pseudorapidity on the hard-scattering kinematics of proton-proton collisions at $\sqrt{s} = 2.76$ TeV with ATLAS

The ATLAS collaboration
Phys.Lett. B756 (2016) 10-28, 2016

Abstract (data abstract)
CERN-LHC. The relationship between jet production in the central region and the underlying-event activity in a pseudorapidity-separated region is studied in 4.0 pb$^{-1}$ of $\sqrt{s} = 2.76$ TeV $pp$ collision data recorded with the ATLAS detector at the LHC. The underlying event is characterised through measurements of the average value of the sum of the transverse energy at large pseudorapidity downstream of one of the protons, which are reported here as a function of hard-scattering kinematic variables. The hard scattering is characterised by the average transverse momentum and pseudorapidity of the two highest transverse momentum jets in the event. The dijet kinematics are used to estimate, on an event-by-event basis, the scaled longitudinal momenta of the hard-scattered partons in the target and projectile beam-protons moving toward and away from the region measuring transverse energy, respectively. Transverse energy production at large pseudorapidity is observed to decrease with a linear dependence on the longitudinal momentum fraction in the target proton and to depend only weakly on that in the projectile proton. The results are compared to the predictions of various Monte Carlo event generators, which qualitatively reproduce the trends observed in data but generally underpredict the overall level of transverse energy at forward pseudorapidity.

  • Table 1

    Data from F2

    10.17182/hepdata.71195.v1/t1

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 2

    Data from F2

    10.17182/hepdata.71195.v1/t2

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 3

    Data from F2

    10.17182/hepdata.71195.v1/t3

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 4

    Data from F2

    10.17182/hepdata.71195.v1/t4

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 5

    Data from F2

    10.17182/hepdata.71195.v1/t5

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 6

    Data from F2

    10.17182/hepdata.71195.v1/t6

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 7

    Data from F2

    10.17182/hepdata.71195.v1/t7

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 8

    Data from F2

    10.17182/hepdata.71195.v1/t8

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 9

    Data from F2

    10.17182/hepdata.71195.v1/t9

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 10

    Data from F4

    10.17182/hepdata.71195.v1/t10

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 11

    Data from F4

    10.17182/hepdata.71195.v1/t11

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 12

    Data from F4

    10.17182/hepdata.71195.v1/t12

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 13

    Data from F4

    10.17182/hepdata.71195.v1/t13

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 14

    Data from F4

    10.17182/hepdata.71195.v1/t14

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 15

    Data from F4

    10.17182/hepdata.71195.v1/t15

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 16

    Data from F4

    10.17182/hepdata.71195.v1/t16

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 17

    Data from F4

    10.17182/hepdata.71195.v1/t17

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 18

    Data from F4

    10.17182/hepdata.71195.v1/t18

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 19

    Data from F5

    10.17182/hepdata.71195.v1/t19

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 20

    Data from F5

    10.17182/hepdata.71195.v1/t20

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 21

    Data from F5

    10.17182/hepdata.71195.v1/t21

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 22

    Data from F5

    10.17182/hepdata.71195.v1/t22

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 23

    Data from F5

    10.17182/hepdata.71195.v1/t23

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 24

    Data from F5

    10.17182/hepdata.71195.v1/t24

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 25

    Data from F5

    10.17182/hepdata.71195.v1/t25

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 26

    Data from F5

    10.17182/hepdata.71195.v1/t26

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, <SumET>. Reported...

  • Table 27

    Data from F5

    10.17182/hepdata.71195.v1/t27

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 28

    Data from F5

    10.17182/hepdata.71195.v1/t28

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 29

    Data from F5

    10.17182/hepdata.71195.v1/t29

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 30

    Data from F5

    10.17182/hepdata.71195.v1/t30

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 31

    Data from F5

    10.17182/hepdata.71195.v1/t31

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 32

    Data from F5

    10.17182/hepdata.71195.v1/t32

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 33

    Data from F5

    10.17182/hepdata.71195.v1/t33

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

  • Table 34

    Data from F5

    10.17182/hepdata.71195.v1/t34

    Mean value of the sum of the transverse energy in -4.9 < eta < -3.2 in pp collisions, divided by...

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