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Measurement of $\psi(2S)$ polarisation in $pp$ collisions at $\sqrt{s}=7$ TeV

The LHCb collaboration
Eur.Phys.J. C74 (2014) 2872, 2014

Abstract (data abstract)
CERN-LHC. The polarisation of prompt PSI(2S) mesons is measured by performing an angular analysis of PSI(2S) --> MU+ MU- decays using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb^{-1}, collected by the LHCb detector in 2011 at a centre-of-mass energy of 7 TeV. The polarisation is measured in bins of transverse momentum, PT, and rapidity, YRAP, in the kinematic region 3.5 < PT < 15 GeV and 2.0 < YRAP < 4.5.

  • Table 1

    Data from Table 2

    10.17182/hepdata.64674.v1/t1

    The measured prompt PSI(2S) polarisation parameter LAMBDA(THETA) in bins of YRAP and PT in the helicity frame.

  • Table 2

    Data from Table 2

    10.17182/hepdata.64674.v1/t2

    The measured prompt PSI(2S) polarisation parameter LAMBDA(THETA PHI) in bins of YRAP and PT in the helicity frame.

  • Table 3

    Data from Table 2

    10.17182/hepdata.64674.v1/t3

    The measured prompt PSI(2S) polarisation parameter LAMBDA(PHI) in bins of YRAP and PT in the helicity frame.

  • Table 4

    Data from Table 2

    10.17182/hepdata.64674.v1/t4

    The measured prompt PSI(2S) polarisation parameter LAMBDA(INV) in bins of YRAP and PT in the helicity frame.

  • Table 5

    Data from Table 3

    10.17182/hepdata.64674.v1/t5

    The measured prompt PSI(2S) polarisation parameter LAMBDA(THETA) in bins of YRAP and PT in the Collins-Soper frame.

  • Table 6

    Data from Table 3

    10.17182/hepdata.64674.v1/t6

    The measured prompt PSI(2S) polarisation parameter LAMBDA(THETA PHI) in bins of YRAP and PT in the Collins-Soper frame.

  • Table 7

    Data from Table 3

    10.17182/hepdata.64674.v1/t7

    The measured prompt PSI(2S) polarisation parameter LAMBDA(PHI) in bins of YRAP and PT in the Collins-Soper frame.

  • Table 8

    Data from Table 3

    10.17182/hepdata.64674.v1/t8

    The measured prompt PSI(2S) polarisation parameter LAMBDA(INV) in bins of YRAP and PT in the Collins-Soper frame.

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