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Model-independent measurement of the $W$ boson helicity in top quark decays at D0

The D0 collaboration
Phys.Rev.Lett. 100 (2008) 062004, 2008

Abstract (data abstract)
Fermilab-Tevatron. Model-independent measurement of the helicity of W bosons produced in top quark decays. The data come from TOP TOPBAR events produced in PBAR P interactions at a centre-of-mass energey of 1960 GeV and have a total integrated luminosity of 1 fb-1. The COS(THETA*) distributions are presented where THETA* is the angle between the momenta of the down-type fermion and the top quark in the W boson rest frame, referred to here as RF=WTOP. Data are given for the the leptonic decaying W in both lepton-jets and dilepton events and for the hadronic decaying W in lepton jet events.. Also included in this records are PRELIMINARY data for the 2008 conferences taken from the D0 Note 5772-CONF based on 2.7 fb-1 of data.

  • Table 1

    Data from F2A

    10.17182/hepdata.47072.v1/t1

    COS(THETA*) distribution for leptonic W decay in lepton+jets events.. Data are read from plots and errors are statistcial (sqrt(N)).

  • Table 2

    Data from F2B

    10.17182/hepdata.47072.v1/t2

    COS(THETA*) distribution for hadronic W decay in lepton+jets events.. Data are read from plots and errors are statistcial (sqrt(N)).

  • Table 3

    Data from F2C

    10.17182/hepdata.47072.v1/t3

    COS(THETA*) distribution for W decay in dilepton events.. Data are read from plots and errors are statistcial (sqrt(N)).

  • Table 4

    Data from F2A

    10.17182/hepdata.47072.v1/t4

    COS(THETA*) distribution for leptonic W decay in lepton+jets events.. The data in this table are PRELIMINARY and taken from D0...

  • Table 5

    Data from F2B

    10.17182/hepdata.47072.v1/t5

    COS(THETA*) distribution for hadronic W decay in lepton+jets events.. The data in this table are PRELIMINARY and taken from D0...

  • Table 6

    Data from F2C

    10.17182/hepdata.47072.v1/t6

    COS(THETA*) distribution for W decay in dilepton events.. The data in this table are PRELIMINARY and taken from D0 Note...

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