• Browse all
Measurement of the prompt $J/\psi$ and $\psi$(2S) polarizations in $pp$ collisions at $\sqrt{s}$ = 7 TeV

The CMS collaboration
Phys.Lett. B727 (2013) 381-402, 2013

Abstract (data abstract)
CERN-LHC. The polarizations of prompt J/psi and psi(2S) mesons are measured in proton-proton collisions at sqrt(s) = 7 TeV, using a dimuon data sample collected in 2011 by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.9 fb^-1. The prompt J/psi and psi(2S) polarization parameters Lambda-Theta, Lambda-Phi, Lambda-Theta-Phi, as well as the frame-invariant Lambda-Tilde, are measured from the dimuon decay angular distributions in three different polarization frames. The J/psi results are obtained in the transverse momentum range 14 < pT < 70 GeV, in the rapidity intervals |y| < 0.6 and 0.6 < |y| < 1.2. The corresponding psi(2S) results cover 14 < pT < 50 GeV and include a third rapidity bin, 1.2 < |y| < 1.5. No evidence of large polarizations is seen in these kinematic regions, which extend much beyond those previously explored. The tables below list the results of the angular anisotropy parameters Lambda-Theta, Lambda-Phi, Lambda-Theta-Phi and the frame-invariant parameter Lambda-Tilde, for the J/psi and psi(2S) states in the Collins-Soper (CS), helicity (HX), and perpendicular helicity (PX) frames, along with their total uncertainties (68.3%, 95.5%, and 99.7% CL) and statistical uncertainties only (68.3% CL) for different bins of J/psi or psi(2S) transverse momentum pT and absolute rapidity |y|.

  • Table 1

    Data from Table 2

    10.17182/hepdata.63898.v1/t1

    Lambda-Theta in the CS frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 2

    Data from Table 2

    10.17182/hepdata.63898.v1/t2

    Lambda-Theta in the CS frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 3

    Data from Table 3

    10.17182/hepdata.63898.v1/t3

    Lambda-Phi in the CS frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 4

    Data from Table 3

    10.17182/hepdata.63898.v1/t4

    Lambda-Phi in the CS frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 5

    Data from Table 4

    10.17182/hepdata.63898.v1/t5

    Lambda-Theta-Phi in the CS frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 6

    Data from Table 4

    10.17182/hepdata.63898.v1/t6

    Lambda-Theta-Phi in the CS frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 7

    Data from Table 5

    10.17182/hepdata.63898.v1/t7

    Lambda-Tilde in the CS frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 8

    Data from Table 5

    10.17182/hepdata.63898.v1/t8

    Lambda-Tilde in the CS frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 9

    Data from Table 6

    10.17182/hepdata.63898.v1/t9

    Lambda-Theta in the HX frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 10

    Data from Table 6

    10.17182/hepdata.63898.v1/t10

    Lambda-Theta in the HX frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 11

    Data from Table 7

    10.17182/hepdata.63898.v1/t11

    Lambda-Phi in the HX frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 12

    Data from Table 7

    10.17182/hepdata.63898.v1/t12

    Lambda-Phi in the HX frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 13

    Data from Table 8

    10.17182/hepdata.63898.v1/t13

    Lambda-Theta-Phi in the HX frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 14

    Data from Table 8

    10.17182/hepdata.63898.v1/t14

    Lambda-Theta-Phi in the HX frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 15

    Data from Table 9

    10.17182/hepdata.63898.v1/t15

    Lambda-Tilde in the HX frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 16

    Data from Table 9

    10.17182/hepdata.63898.v1/t16

    Lambda-Tilde in the HX frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 17

    Data from Table 10

    10.17182/hepdata.63898.v1/t17

    Lambda-Theta in the PX frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 18

    Data from Table 10

    10.17182/hepdata.63898.v1/t18

    Lambda-Theta in the PX frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 19

    Data from Table 11

    10.17182/hepdata.63898.v1/t19

    Lambda-Phi in the PX frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 20

    Data from Table 11

    10.17182/hepdata.63898.v1/t20

    Lambda-Phi in the PX frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 21

    Data from Table 12

    10.17182/hepdata.63898.v1/t21

    Lambda-Theta-Phi in the PX frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 22

    Data from Table 12

    10.17182/hepdata.63898.v1/t22

    Lambda-Theta-Phi in the PX frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 23

    Data from Table 13

    10.17182/hepdata.63898.v1/t23

    Lambda-Tilde in the PX frame for the J/psi as a function of pT for 0.0 < |y| < 0.6.

  • Table 24

    Data from Table 13

    10.17182/hepdata.63898.v1/t24

    Lambda-Tilde in the PX frame for the J/psi as a function of pT for 0.6 < |y| < 1.2.

  • Table 25

    Data from Table 14

    10.17182/hepdata.63898.v1/t25

    Lambda-Theta in the CS frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 26

    Data from Table 14

    10.17182/hepdata.63898.v1/t26

    Lambda-Theta in the CS frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 27

    Data from Table 14

    10.17182/hepdata.63898.v1/t27

    Lambda-Theta in the CS frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 28

    Data from Table 15

    10.17182/hepdata.63898.v1/t28

    Lambda-Phi in the CS frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 29

    Data from Table 15

    10.17182/hepdata.63898.v1/t29

    Lambda-Phi in the CS frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 30

    Data from Table 15

    10.17182/hepdata.63898.v1/t30

    Lambda-Phi in the CS frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 31

    Data from Table 16

    10.17182/hepdata.63898.v1/t31

    Lambda-Theta-Phi in the CS frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 32

    Data from Table 16

    10.17182/hepdata.63898.v1/t32

    Lambda-Theta-Phi in the CS frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 33

    Data from Table 16

    10.17182/hepdata.63898.v1/t33

    Lambda-Theta-Phi in the CS frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 34

    Data from Table 17

    10.17182/hepdata.63898.v1/t34

    Lambda-Tilde in the CS frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 35

    Data from Table 17

    10.17182/hepdata.63898.v1/t35

    Lambda-Tilde in the CS frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 36

    Data from Table 17

    10.17182/hepdata.63898.v1/t36

    Lambda-Tilde in the CS frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 37

    Data from Table 18

    10.17182/hepdata.63898.v1/t37

    Lambda-Theta in the HX frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 38

    Data from Table 18

    10.17182/hepdata.63898.v1/t38

    Lambda-Theta in the HX frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 39

    Data from Table 18

    10.17182/hepdata.63898.v1/t39

    Lambda-Theta in the HX frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 40

    Data from Table 19

    10.17182/hepdata.63898.v1/t40

    Lambda-Phi in the HX frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 41

    Data from Table 19

    10.17182/hepdata.63898.v1/t41

    Lambda-Phi in the HX frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 42

    Data from Table 19

    10.17182/hepdata.63898.v1/t42

    Lambda-Phi in the HX frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 43

    Data from Table 20

    10.17182/hepdata.63898.v1/t43

    Lambda-Theta-Phi in the HX frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 44

    Data from Table 20

    10.17182/hepdata.63898.v1/t44

    Lambda-Theta-Phi in the HX frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 45

    Data from Table 20

    10.17182/hepdata.63898.v1/t45

    Lambda-Theta-Phi in the HX frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 46

    Data from Table 21

    10.17182/hepdata.63898.v1/t46

    Lambda-Tilde in the HX frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 47

    Data from Table 21

    10.17182/hepdata.63898.v1/t47

    Lambda-Tilde in the HX frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 48

    Data from Table 21

    10.17182/hepdata.63898.v1/t48

    Lambda-Tilde in the HX frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 49

    Data from Table 22

    10.17182/hepdata.63898.v1/t49

    Lambda-Theta in the PX frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 50

    Data from Table 22

    10.17182/hepdata.63898.v1/t50

    Lambda-Theta in the PX frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 51

    Data from Table 22

    10.17182/hepdata.63898.v1/t51

    Lambda-Theta in the PX frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 52

    Data from Table 23

    10.17182/hepdata.63898.v1/t52

    Lambda-Phi in the PX frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 53

    Data from Table 23

    10.17182/hepdata.63898.v1/t53

    Lambda-Phi in the PX frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 54

    Data from Table 23

    10.17182/hepdata.63898.v1/t54

    Lambda-Phi in the PX frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 55

    Data from Table 24

    10.17182/hepdata.63898.v1/t55

    Lambda-Theta-Phi in the PX frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 56

    Data from Table 24

    10.17182/hepdata.63898.v1/t56

    Lambda-Theta-Phi in the PX frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 57

    Data from Table 24

    10.17182/hepdata.63898.v1/t57

    Lambda-Theta-Phi in the PX frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

  • Table 58

    Data from Table 25

    10.17182/hepdata.63898.v1/t58

    Lambda-Tilde in the PX frame for the psi(2S) as a function of pT for 0.0 < |y| < 0.6.

  • Table 59

    Data from Table 25

    10.17182/hepdata.63898.v1/t59

    Lambda-Tilde in the PX frame for the psi(2S) as a function of pT for 0.6 < |y| < 1.2.

  • Table 60

    Data from Table 25

    10.17182/hepdata.63898.v1/t60

    Lambda-Tilde in the PX frame for the psi(2S) as a function of pT for 1.2 < |y| < 1.5.

Loading Data...