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Measurement of differential cross sections and charge ratios for $t$-channel single top quark production in proton-proton collisions at $\sqrt{s} =$ 13 TeV

The CMS collaboration
Eur.Phys.J. C80 (2020) 370, 2020.

Abstract (data abstract)
A measurement is presented of differential cross sections for $t$-channel single top quark and antiquark production in proton-proton collisions at a centre-of-mass energy of $13~\rm{TeV}$ by the CMS experiment at the LHC. From a data set corresponding to an integrated luminosity of $35.9~\rm{fb}^{-1}$, events containing one muon or electron and two or three jets are analysed. The cross section is measured as a function of the top quark transverse momentum ($p_{\rm{T}}$), rapidity, and polarisation angle, the charged lepton $p_{\rm{T}}$ and rapidity, and the $p_{\rm{T}}$ of the W boson from the top quark decay. In addition, the charge ratio is measured differentially as a function of the top quark, charged lepton, and W boson kinematic observables. The results are found to be in agreement with standard model predictions using various next-to-leading-order event generators and sets of parton distribution functions. Additionally, the spin asymmetry, sensitive to the top quark polarisation, is determined from the differential distribution of the polarisation angle at parton level to be $0.440 \pm 0.070$, in agreement with the standard model prediction.

  • Table 1

    Data from Figure 7, upper row, left column (page 18 of preprint)

    10.17182/hepdata.93068.v1/t1

    Differential absolute cross section as a function of the parton-level top quark $p_\textrm{T}$

  • Table 2

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_001-a

    10.17182/hepdata.93068.v1/t2

    Covariance of the differential absolute cross section as a function of the parton-level top quark $p_\textrm{T}$

  • Table 3

    Data from Figure 7, upper row, right column (page 18 of preprint)

    10.17182/hepdata.93068.v1/t3

    Differential absolute cross section as a function of the parton-level top quark rapidity

  • Table 4

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_001-b

    10.17182/hepdata.93068.v1/t4

    Covariance of the differential absolute cross section as a function of the parton-level top quark rapidity

  • Table 5

    Data from Figure 7, middle row, left column (page 18 of preprint)

    10.17182/hepdata.93068.v1/t5

    Differential absolute cross section as a function of the parton-level charged lepton $p_\textrm{T}$

  • Table 6

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_001-c

    10.17182/hepdata.93068.v1/t6

    Covariance of the differential absolute cross section as a function of the parton-level charged lepton $p_\textrm{T}$

  • Table 7

    Data from Figure 7, middle row, right column (page 18 of preprint)

    10.17182/hepdata.93068.v1/t7

    Differential absolute cross section as a function of the parton-level charged lepton rapidity

  • Table 8

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_001-d

    10.17182/hepdata.93068.v1/t8

    Covariance of the differential absolute cross section as a function of the parton-level charged lepton rapidity

  • Table 9

    Data from Figure 7, lower row, left column (page 18 of preprint)

    10.17182/hepdata.93068.v1/t9

    Differential absolute cross section as a function of the parton-level W boson $p_\textrm{T}$

  • Table 10

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_001-e

    10.17182/hepdata.93068.v1/t10

    Covariance of the differential absolute cross section as a function of the parton-level W boson $p_\textrm{T}$

  • Table 11

    Data from Figure 7, lower row, right column (page 18 of preprint)

    10.17182/hepdata.93068.v1/t11

    Differential absolute cross section as a function of the parton-level cosine of the top quark polarisation angle

  • Table 12

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_001-f

    10.17182/hepdata.93068.v1/t12

    Covariance of the differential absolute cross section as a function of the parton-level cosine of the top quark polarisation angle

  • Table 13

    Data from Figure 8, upper row, left column (page 19 of preprint)

    10.17182/hepdata.93068.v1/t13

    Differential absolute cross section as a function of the particle-level top quark $p_\textrm{T}$

  • Table 14

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_002-a

    10.17182/hepdata.93068.v1/t14

    Covariance of the differential absolute cross section as a function of the particle-level top quark $p_\textrm{T}$

  • Table 15

    Data from Figure 8, upper row, right column (page 19 of preprint)

    10.17182/hepdata.93068.v1/t15

    Differential absolute cross section as a function of the particle-level top quark rapidity

  • Table 16

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_002-b

    10.17182/hepdata.93068.v1/t16

    Covariance of the differential absolute cross section as a function of the particle-level top quark rapidity

  • Table 17

    Data from Figure 8, middle row, left column (page 19 of preprint)

    10.17182/hepdata.93068.v1/t17

    Differential absolute cross section as a function of the particle-level charged lepton $p_\textrm{T}$

  • Table 18

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_002-c

    10.17182/hepdata.93068.v1/t18

    Covariance of the differential absolute cross section as a function of the particle-level charged lepton $p_\textrm{T}$

  • Table 19

    Data from Figure 8, middle row, right column (page 19 of preprint)

    10.17182/hepdata.93068.v1/t19

    Differential absolute cross section as a function of the particle-level charged lepton rapidity

  • Table 20

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_002-d

    10.17182/hepdata.93068.v1/t20

    Covariance of the differential absolute cross section as a function of the particle-level charged lepton rapidity

  • Table 21

    Data from Figure 8, lower row, left column (page 19 of preprint)

    10.17182/hepdata.93068.v1/t21

    Differential absolute cross section as a function of the particle-level W boson $p_\textrm{T}$

  • Table 22

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_002-e

    10.17182/hepdata.93068.v1/t22

    Covariance of the differential absolute cross section as a function of the particle-level W boson $p_\textrm{T}$

  • Table 23

    Data from Figure 8, lower row, right column (page 19 of preprint)

    10.17182/hepdata.93068.v1/t23

    Differential absolute cross section as a function of the particle-level cosine of the top quark polarisation angle

  • Table 24

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_002-f

    10.17182/hepdata.93068.v1/t24

    Covariance of the differential absolute cross section as a function of the particle-level cosine of the top quark polarisation angle

  • Table 25

    Data from Figure 9, upper row, left column (page 20 of preprint)

    10.17182/hepdata.93068.v1/t25

    Differential normalised cross section as a function of the parton-level top quark $p_\textrm{T}$

  • Table 26

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_003-a

    10.17182/hepdata.93068.v1/t26

    Covariance of the differential normalised cross section as a function of the parton-level top quark $p_\textrm{T}$

  • Table 27

    Data from Figure 9, upper row, right column (page 20 of preprint)

    10.17182/hepdata.93068.v1/t27

    Differential normalised cross section as a function of the parton-level top quark rapidity

  • Table 28

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_003-b

    10.17182/hepdata.93068.v1/t28

    Covariance of the differential normalised cross section as a function of the parton-level top quark rapidity

  • Table 29

    Data from Figure 9, middle row, left column (page 20 of preprint)

    10.17182/hepdata.93068.v1/t29

    Differential normalised cross section as a function of the parton-level charged lepton $p_\textrm{T}$

  • Table 30

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_003-c

    10.17182/hepdata.93068.v1/t30

    Covariance of the differential normalised cross section as a function of the parton-level charged lepton $p_\textrm{T}$

  • Table 31

    Data from Figure 9, middle row, right column (page 20 of preprint)

    10.17182/hepdata.93068.v1/t31

    Differential normalised cross section as a function of the parton-level charged lepton rapidity

  • Table 32

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_003-d

    10.17182/hepdata.93068.v1/t32

    Covariance of the differential normalised cross section as a function of the parton-level charged lepton rapidity

  • Table 33

    Data from Figure 9, lower row, left column (page 20 of preprint)

    10.17182/hepdata.93068.v1/t33

    Differential normalised cross section as a function of the parton-level W boson $p_\textrm{T}$

  • Table 34

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_003-e

    10.17182/hepdata.93068.v1/t34

    Covariance of the differential normalised cross section as a function of the parton-level W boson $p_\textrm{T}$

  • Table 35

    Data from Figure 9, lower row, right column (page 20 of preprint)

    10.17182/hepdata.93068.v1/t35

    Differential normalised cross section as a function of the parton-level cosine of the top quark polarisation angle

  • Table 36

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_003-f

    10.17182/hepdata.93068.v1/t36

    Covariance of the differential normalised cross section as a function of the parton-level cosine of the top quark polarisation angle

  • Table 37

    Data from Figure 10, upper row, left column (page 21 of preprint)

    10.17182/hepdata.93068.v1/t37

    Differential normalised cross section as a function of the particle-level top quark $p_\textrm{T}$

  • Table 38

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_004-a

    10.17182/hepdata.93068.v1/t38

    Covariance of the differential normalised cross section as a function of the particle-level top quark $p_\textrm{T}$

  • Table 39

    Data from Figure 10, upper row, right column (page 21 of preprint)

    10.17182/hepdata.93068.v1/t39

    Differential normalised cross section as a function of the particle-level top quark rapidity

  • Table 40

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_004-b

    10.17182/hepdata.93068.v1/t40

    Covariance of the differential normalised cross section as a function of the particle-level top quark rapidity

  • Table 41

    Data from Figure 10, middle row, left column (page 21 of preprint)

    10.17182/hepdata.93068.v1/t41

    Differential normalised cross section as a function of the particle-level charged lepton $p_\textrm{T}$

  • Table 42

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_004-c

    10.17182/hepdata.93068.v1/t42

    Covariance of the differential normalised cross section as a function of the particle-level charged lepton $p_\textrm{T}$

  • Table 43

    Data from Figure 10, middle row, right column (page 21 of preprint)

    10.17182/hepdata.93068.v1/t43

    Differential normalised cross section as a function of the particle-level charged lepton rapidity

  • Table 44

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_004-d

    10.17182/hepdata.93068.v1/t44

    Covariance of the differential normalised cross section as a function of the particle-level charged lepton rapidity

  • Table 45

    Data from Figure 10, lower row, left column (page 21 of preprint)

    10.17182/hepdata.93068.v1/t45

    Differential normalised cross section as a function of the particle-level W boson $p_\textrm{T}$

  • Table 46

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_004-e

    10.17182/hepdata.93068.v1/t46

    Covariance of the differential normalised cross section as a function of the particle-level W boson $p_\textrm{T}$

  • Table 47

    Data from Figure 10, lower row, right column (page 21 of preprint)

    10.17182/hepdata.93068.v1/t47

    Differential normalised cross section as a function of the particle-level cosine of the top quark polarisation angle

  • Table 48

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_004-f

    10.17182/hepdata.93068.v1/t48

    Covariance of the differential normalised cross section as a function of the particle-level cosine of the top quark polarisation angle

  • Table 49

    Data from Figure 11, upper row, left column (page 22 of preprint)

    10.17182/hepdata.93068.v1/t49

    Differential charge ratio as a function of the parton-level top quark $p_\textrm{T}$

  • Table 50

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_005-a

    10.17182/hepdata.93068.v1/t50

    Covariance of the differential charge ratio as a function of the parton-level top quark $p_\textrm{T}$

  • Table 51

    Data from Figure 11, upper row, right column (page 22 of preprint)

    10.17182/hepdata.93068.v1/t51

    Differential charge ratio as a function of the parton-level top quark rapidity

  • Table 52

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_005-b

    10.17182/hepdata.93068.v1/t52

    Covariance of the differential charge ratio as a function of the parton-level top quark rapidity

  • Table 53

    Data from Figure 11, middle row, left column (page 22 of preprint)

    10.17182/hepdata.93068.v1/t53

    Differential charge ratio as a function of the parton-level charged lepton $p_\textrm{T}$

  • Table 54

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_005-c

    10.17182/hepdata.93068.v1/t54

    Covariance of the differential charge ratio as a function of the parton-level charged lepton $p_\textrm{T}$

  • Table 55

    Data from Figure 11, middle row, right column (page 22 of preprint)

    10.17182/hepdata.93068.v1/t55

    Differential charge ratio as a function of the parton-level charged lepton rapidity

  • Table 56

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_005-d

    10.17182/hepdata.93068.v1/t56

    Covariance of the differential charge ratio as a function of the parton-level charged lepton rapidity

  • Table 57

    Data from Figure 11, lower row, left column (page 22 of preprint)

    10.17182/hepdata.93068.v1/t57

    Differential charge ratio as a function of the parton-level W boson $p_\textrm{T}$

  • Table 58

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_005-e

    10.17182/hepdata.93068.v1/t58

    Covariance of the differential charge ratio as a function of the parton-level W boson $p_\textrm{T}$

  • Table 59

    Data from Figure 12, upper row, left column (page 23 of preprint)

    10.17182/hepdata.93068.v1/t59

    Differential charge ratio as a function of the particle-level top quark $p_\textrm{T}$

  • Table 60

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_006-a

    10.17182/hepdata.93068.v1/t60

    Covariance of the differential charge ratio as a function of the particle-level top quark $p_\textrm{T}$

  • Table 61

    Data from Figure 12, upper row, right column (page 23 of preprint)

    10.17182/hepdata.93068.v1/t61

    Differential charge ratio as a function of the particle-level top quark rapidity

  • Table 62

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_006-b

    10.17182/hepdata.93068.v1/t62

    Covariance of the differential charge ratio as a function of the particle-level top quark rapidity

  • Table 63

    Data from Figure 12, middle row, left column (page 23 of preprint)

    10.17182/hepdata.93068.v1/t63

    Differential charge ratio as a function of the particle-level charged lepton $p_\textrm{T}$

  • Table 64

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_006-c

    10.17182/hepdata.93068.v1/t64

    Covariance of the differential charge ratio as a function of the particle-level charged lepton $p_\textrm{T}$

  • Table 65

    Data from Figure 12, middle row, right column (page 23 of preprint)

    10.17182/hepdata.93068.v1/t65

    Differential charge ratio as a function of the particle-level charged lepton rapidity

  • Table 66

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_006-d

    10.17182/hepdata.93068.v1/t66

    Covariance of the differential charge ratio as a function of the particle-level charged lepton rapidity

  • Table 67

    Data from Figure 12, lower row, left column (page 23 of preprint)

    10.17182/hepdata.93068.v1/t67

    Differential charge ratio as a function of the particle-level W boson $p_\textrm{T}$

  • Table 68

    Data from additional material on analysis webpage: http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-17-023/index.html#Figure-aux_006-e

    10.17182/hepdata.93068.v1/t68

    Covariance of the differential charge ratio as a function of the particle-level W boson $p_\textrm{T}$

  • Table 69

    Data from Table 2 (page 24 of preprint)

    10.17182/hepdata.93068.v1/t69

    Top quark spin asymmetry at the parton level in the muon and electron channel and their combination

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