• Browse all
Longitudinal double-spin asymmetry for inclusive jet and dijet production in pp collisions at $\sqrt{s} = 510$ GeV

The collaboration
Phys.Rev.D 100 (2019) 052005, 2019.

Abstract (data abstract)
We report the first measurement of the inclusive jet and the dijet longitudinal double-spin asymmetries, ALL, at midrapidity in polarized pp collisions at a center-of-mass energy s√=510 GeV. The inclusive jet ALL measurement is sensitive to the gluon helicity distribution down to a gluon momentum fraction of x≈0.015, while the dijet measurements, separated into four jet-pair topologies, provide constraints on the x dependence of the gluon polarization. Both results are consistent with previous measurements made at s√=200 GeV in the overlapping kinematic region, x>0.05, and show good agreement with predictions from recent next-to-leading order global analyses.

• #### Figure 1 (200GeV)

Data from Figure 1 (200GeV)

10.17182/hepdata.105278.v1/t1

Fractions of the next-to-leading-order cross section for inclusive jet production arising from quark-quark, quark-gluon and gluon-gluon scattering in pp collisions...

• #### Figure 1 (500GeV)

Data from Figure 1 (500GeV)

10.17182/hepdata.105278.v1/t2

Fractions of the next-to-leading-order cross section for inclusive jet production arising from quark-quark, quark-gluon and gluon-gluon scattering in pp collisions...

• #### Figure 2 (JP0)

Data from Figure 2 (JP0)

10.17182/hepdata.105278.v1/t3

The upper panel shows the jet yield vs detector jet pT in data and simulation for each of the three...

• #### Figure 2 (JP1)

Data from Figure 2 (JP1)

10.17182/hepdata.105278.v1/t4

The upper panel shows the jet yield vs detector jet pT in data and simulation for each of the three...

• #### Figure 2 (JP2)

Data from Figure 2 (JP2)

10.17182/hepdata.105278.v1/t5

The upper panel shows the jet yield vs detector jet pT in data and simulation for each of the three...

• #### Figure 3 (data, 8.0 GeV/c)

Data from Figure 3

10.17182/hepdata.105278.v1/t6

Distributions of the charged hadrons within the jets as a function of the hadron longitudinal momentum fraction,z, for two typical...

• #### Figure 3

Data from Figure 3

10.17182/hepdata.105278.v1/t7

Distributions of the charged hadrons within the jets as a function of the hadron longitudinal momentum fraction,z, for two typical...

• #### Figure 4 (data, 8GeV/c)

Data from Figure 4 (data, 8GeV/c)

10.17182/hepdata.105278.v1/t8

Distributions of the charged hadrons within the jets as a function of the hadron longitudinal momentum transverse to the thrust...

• #### Figure 4 (simulation, 8GeV/c)

Data from Figure 4 (simulation, 8GeV/c)

10.17182/hepdata.105278.v1/t9

Distributions of the charged hadrons within the jets as a function of the hadron longitudinal momentum transverse to the thrust...

• #### Figure 4 (data, 34.4GeV/c)

Data from Figure 4 (data, 34.4GeV/c)

10.17182/hepdata.105278.v1/t10

Distributions of the charged hadrons within the jets as a function of the hadron longitudinal momentum transverse to the thrust...

• #### Figure 4 (simulation, 34.4GeV/c)

Data from Figure 4 (simulation, 34.4GeV/c)

10.17182/hepdata.105278.v1/t11

Distributions of the charged hadrons within the jets as a function of the hadron longitudinal momentum transverse to the thrust...

• #### Figure 5 (JP0, 34.4GeV/c)

Data from Figure 5 (JP0, 34.4GeV/c)

10.17182/hepdata.105278.v1/t12

The upper panel shows the electromagnetic fraction distribution for jets in a low-pT bin. The lower panel shows the electromagnetic...

• #### Figure 5

Data from Figure 5

10.17182/hepdata.105278.v1/t13

The upper panel shows the electromagnetic fraction distribution for jets in a low-pT bin. The lower panel shows the electromagnetic...

• #### Figure 6 (JP0)

Data from Figure 6 (JP0)

10.17182/hepdata.105278.v1/t14

Dijet yield vs invariant mass as measured at the detector level. (JP0)

• #### Figure 6 (JP1)

Data from Figure 6 (JP1)

10.17182/hepdata.105278.v1/t15

Dijet yield vs invariant mass as measured at the detector level. (JP1)

• #### Figure 6 (JP2)

Data from Figure 6 (JP2)

10.17182/hepdata.105278.v1/t16

Dijet yield vs invariant mass as measured at the detector level. (JP2)

• #### Figure 7 (a)

Data from Figure 7 (a)

10.17182/hepdata.105278.v1/t17

Dijet opening angle Delta phi distribution

• #### Figure 7 (b)

Data from Figure 7 (b)

10.17182/hepdata.105278.v1/t18

Dijet opening angle Delta eta distribution

• #### Figure 8 (data and simulation distribution)

Data from Figure 8 (data and simulation distribution)

10.17182/hepdata.105278.v1/t19

Distributions of the charged hadrons within the offaxis cones as a function of hadron pT

• #### Figure 8 (the ratio of simulation and data)

Data from Figure 8 (the ratio of simulation and data)

10.17182/hepdata.105278.v1/t20

The ratio of simulation to data for pT < 2 GeV/c

• #### Figure 9 (a)

Data from Figure 9 (a)

10.17182/hepdata.105278.v1/t21

the mean underlying event correction to the jet transverse momentum, as a function of detector jet pT

• #### Figure 9 (b, data)

Data from Figure 9 (b, data)

10.17182/hepdata.105278.v1/t22

the mean underlying event correction to the dijet mass, as a function of detector dijet invariant mass, from data

• #### Figure 9 (b, simulation)

Data from Figure 9 (b, simulation)

10.17182/hepdata.105278.v1/t23

the mean underlying event correction to the dijet mass, as a function of detector dijet invariant mass, from simulation

• #### Figure 10

Data from Figure 10

10.17182/hepdata.105278.v1/t24

the observed longitudinal double-spin asymmetry of the underlying event contributions, as a function of detector jet pT

• #### Figure 11 (triggered detector jets, 8.0 GeV/c)

Data from Figure 11 (triggered detector jets, 8.0 GeV/c)

10.17182/hepdata.105278.v1/t25

the sampled gluon x distributions, weighted by the partonic asymmetry (triggered detector jets, 8.0 GeV/c)

• #### Figure 11 (triggered detector jets, 34.4 GeV/c)

Data from Figure 11 (triggered detector jets, 34.4 GeV/c)

10.17182/hepdata.105278.v1/t26

the sampled gluon x distributions, weighted by the partonic asymmetry (triggered detector jets, 34.4 GeV/c)

• #### Figure 11 (all parton jets, 8.0 GeV/c)

Data from Figure 11 (all parton jets, 8.0 GeV/c)

10.17182/hepdata.105278.v1/t27

the sampled gluon x distributions, weighted by the partonic asymmetry (all parton jets, 8.0 GeV/c)

• #### Figure 11 (all parton jets, 34.4 GeV/c)

Data from Figure 11 (all parton jets, 34.4 GeV/c)

10.17182/hepdata.105278.v1/t28

the sampled gluon x distributions, weighted by the partonic asymmetry (all parton jets, 34.4 GeV/c)

• #### Figure 12 (Run12)

Data from Figure 12 (Run12)

10.17182/hepdata.105278.v1/t29

the inclusive jet asymmetries and systematic uncertainties,as function of pT compared to the theoretical predictions (Run12)

• #### Figure 12 (DSSV14)

Data from Figure 12 (DSSV14)

10.17182/hepdata.105278.v1/t30

the inclusive jet asymmetries and systematic uncertainties,as function of pT compared to the theoretical predictions (DSSV14)

• #### Figure 12 (NNPDFpol.1)

Data from Figure 12 (NNPDFpol.1)

10.17182/hepdata.105278.v1/t31

the inclusive jet asymmetries and systematic uncertainties,as function of pT compared to the theoretical predictions (NNPDFpol.1)

• #### Figure 12 (NNPDFpol.1 -rep)

Data from Figure 12 (NNPDFpol.1 -rep)

10.17182/hepdata.105278.v1/t32

the inclusive jet asymmetries and systematic uncertainties,as function of pT compared to the theoretical predictions (NNPDFpol.1 -rep)

• #### Figure 13 (Run12)

Data from Figure 13 (Run12)

10.17182/hepdata.105278.v1/t33

the inclusive jet asymmetries and systematic uncertainties, as function of xT compared to the theoretical predictions (Run12)

• #### Figure 13 (Run9)

Data from Figure 13 (Run9)

10.17182/hepdata.105278.v1/t34

the inclusive jet asymmetries and systematic uncertainties, as function of xT compared to the theoretical predictions (Run9)

• #### Figure 13 (DSSV14)

Data from Figure 13 (DSSV14)

10.17182/hepdata.105278.v1/t35

the inclusive jet asymmetries and systematic uncertainties, as function of xT compared to the theoretical predictions (DSSV14)

• #### Figure 13 (NNPDFpol1.1)

Data from Figure 13 (NNPDFpol1.1)

10.17182/hepdata.105278.v1/t36

the inclusive jet asymmetries and systematic uncertainties, as function of xT compared to the theoretical predictions (NNPDFpol1.1)

• #### Figure 14 (a,A,x1)

Data from Figure 14 (a,A,x1)

10.17182/hepdata.105278.v1/t37

Leading order extractions from the embedding sample of the x1 and x2 distributions in dijet events for topological bins A-D...

• #### Figure 14 (a,A,x2)

Data from Figure 14 (a,A,x2)

10.17182/hepdata.105278.v1/t38

Leading order extractions from the embedding sample of the x1 and x2 distributions in dijet events for topological bins A-D...

• #### Figure 14 (a,B,x1)

Data from Figure 14 (a,B,x1)

10.17182/hepdata.105278.v1/t39

Leading order extractions from the embedding sample of the x1 and x2 distributions in dijet events for topological bins A-D...

• #### Figure 14 (a,B,x2)

Data from Figure 14 (a,B,x2)

10.17182/hepdata.105278.v1/t40

Leading order extractions from the embedding sample of the x1 and x2 distributions in dijet events for topological bins A-D...

• #### Figure 14 (a,C,x1)

Data from Figure 14 (a,C,x1)

10.17182/hepdata.105278.v1/t41

Leading order extractions from the embedding sample of the x1 and x2 distributions in dijet events for topological bins A-D...

• #### Figure 14 (a,C,x2)

Data from Figure 14 (a,C,x2)

10.17182/hepdata.105278.v1/t42

Leading order extractions from the embedding sample of the x1 and x2 distributions in dijet events for topological bins A-D...

• #### Figure 14 (a,D,x1)

Data from Figure 14 (a,D,x1)

10.17182/hepdata.105278.v1/t43

Leading order extractions from the embedding sample of the x1 and x2 distributions in dijet events for topological bins A-D...

• #### Figure 14 (a,D,x2)

Data from Figure 14 (a,D,x2)

10.17182/hepdata.105278.v1/t44

Leading order extractions from the embedding sample of the x1 and x2 distributions in dijet events for topological bins A-D...

• #### Figure 14 (b,A,DSSV14)

Data from Figure 14 (b,A,DSSV14)

10.17182/hepdata.105278.v1/t45

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,A,DSSV14)

• #### Figure 14 (b,B,DSSV14)

Data from Figure 14 (b,B,DSSV14)

10.17182/hepdata.105278.v1/t46

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,B,DSSV14)

• #### Figure 14 (b,C,DSSV14)

Data from Figure 14 (b,C,DSSV14)

10.17182/hepdata.105278.v1/t47

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,C,DSSV14)

• #### Figure 14 (b,D,DSSV14)

Data from Figure 14 (b,D,DSSV14)

10.17182/hepdata.105278.v1/t48

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,D,DSSV14)

• #### Figure 14 (b,A,NNPDF11)

Data from Figure 14 (b,A,NNPDF11)

10.17182/hepdata.105278.v1/t49

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,A,NNPDF11)

• #### Figure 14 (b,B,NNPDF11)

Data from Figure 14 (b,B,NNPDF11)

10.17182/hepdata.105278.v1/t50

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,B,NNPDF11)

• #### Figure 14 (b,C,NNPDF11)

Data from Figure 14 (b,C,NNPDF11)

10.17182/hepdata.105278.v1/t51

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,C,NNPDF11)

• #### Figure 14 (b,D,NNPDF11)

Data from Figure 14 (b,D,NNPDF11)

10.17182/hepdata.105278.v1/t52

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,D,NNPDF11)

• #### Figure 14 (b,A,data)

Data from Figure 14 (b,A,data)

10.17182/hepdata.105278.v1/t53

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,A,data)

• #### Figure 14 (b,B,data)

Data from Figure 14 (b,B,data)

10.17182/hepdata.105278.v1/t54

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,B,data)

• #### Figure 14 (b,C,data)

Data from Figure 14 (b,C,data)

10.17182/hepdata.105278.v1/t55

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,C,data)

• #### Figure 14 (b,D,data)

Data from Figure 14 (b,D,data)

10.17182/hepdata.105278.v1/t56

Dijet asymmetries for the same topological bins in 510 GeV pp collisions (b,D,data)