LEP EW WG Plots for the Summer 2001 Conferences

You can find here the plots that have been produced for the Summer 2001 conferences. Some plots may show up here in a couple of slightly different presentations, depending on who has made the plot. They all use the same data. Many results and plots are still based on preliminary results.

Note that essentially the full set of plots will be made available, including those that have data that hasn't changed, so that "one-stop shopping" can be done.

Answers to FAQs on plots presented below:

• Afb_q and R_q[=GZ_q/GZ_had] plots for heavy quark flavours comparing ADLOS results:
  • In contrast to previous versions of these plots for older conferences, all numerical values as well as all dots with error bars are so-called pole quantities, eg, Afb0q, and in particular corrected to exactly the same set of values for other parameters. Thus they are directly comparable, but do not neccessarily correspond digit-by-digit to the numerical values found in the experimental publications. In addition, note that the individual ADLO measurements are those derived from the peak energy data set only, while the LEP average includes the off-peak data sets.

• Epsilon-parameter contour
  • Based on a fit varying alpha(dal5had), alpha_s, MZ, and the four epsilon_123b parameters
  • Data set consists of all measurements except M_top and sin2theta from NUTEV due to its explicit M_top/M_Higgs dependence (M_top/M_Higgs cannot be expressed in terms of the four epsilon parameters). APV is also not included, as additional model assumptions are needed to express APV in terms of the epsilon parameters.

• STU-parameter contour
  • Based on a fit varying alpha(dal5had), alpha_s, MZ, and the three STgamma_b parameters
  • U=0 fixed throughout
  • Data set consists of all measurements except M_top and sin2theta from NUTEV due to its explicit M_top/M_Higgs dependence (M_top/M_Higgs cannot be expressed in terms of the four STUgamma_b parameters). APV is also not included, as additional model assumptions are needed to express APV in terms of the STUgamma_b parameters.
  • The additional bands correspond to +-1sigma bands for the alpha_s independent quantities GZ_lepton, MW and sin2teff (in order of increasing slope dT/dS). GZ_lepton instead of GZ_tot is chosen because the latter depends in addition on alpha_s and the former exhibits a more extreme (ie, flatter) slope. All other fit parameters are fixed.
  • The MSM reference values (STUgamma_b=0) are dal5had=0.02761, alpha_s=0.118, MZ=91.1875 GeV, M_top=175 GeV, M_Higgs=150 GeV

LEP-1 Z lineshape and leptonic forward-backward asymmetries:

lep1_mz.eps.gz

lep1_gz.eps.gz

lep1_sh.eps.gz

lep1_rl.eps.gz

lep1_al.eps.gz

s01_rl_afbl_contours.eps.gz

LEP-1 Tau polarisation:

lep1_pt.eps.gz

lep1_pe.eps.gz

SLD + LEP-1 Heavy quark flavours:

afbene.eps.gz

afb_bb0_summer01.eps.gz

afb_cc0_summer01.eps.gz

rb.eps.gz

rc.eps.gz

s01_rb_rc_contours.eps.gz

s01_afbb_afbc_contours.eps.gz

s01_ab_ac_contours.eps.gz

Derived couplings:

s01_gal_gvl_contours.eps.gz

s01_al_ab_bands.eps.gz

s01_al_ac_bands.eps.gz

s01_gab_gvb_contours.eps.gz

s01_glb_grb_contours.eps.gz

s01_gac_gvc_contours.eps.gz

s01_glc_grc_contours.eps.gz

s01_rho_sef_contours.eps.gz

s01_sef2_theta.eps.gz

tsins2001.eps.gz

LEP-2 W mass and width:

mw_qqln.eps.gz

mw_qqqq.eps.gz

mw_ffff.eps.gz

s01_mw.eps.gz

gw_ffff.eps.gz

s01_gw.eps.gz

Constraints on the Standard Model:

s01_gl_s2_contours.eps.gz

s01_ro_s2_contours.eps.gz

s01_mw_s2_contours.eps.gz

s01_mw_gl_contours.eps.gz

s01_ro_mw_contours.eps.gz

s01_eps_contours.eps.gz

s01_stu_contours.eps.gz

s01_mt_mw_contours.eps.gz

s01_plot_mt.eps.gz

s01_plot_mw.eps.gz

s01_mh_ah_contours.eps.gz

s01_mh_mt_contours.eps.gz

s01_mh_mw_contours.eps.gz

s01_mh_azbb_contours.eps.gz

s01_blueband.eps.gz

s01_show_pull.eps.gz

s01_show_pull_bw.eps.gz

s01_higgs_sensitivity_1.eps.gz

s01_higgs_sensitivity_2.eps.gz

s01_higgs_sensitivity_3.eps.gz

More LEP-2:

• Fermion-pair and photon-pair production

• W-decay branching fractions, W and four-fermion cross sections

• Triple and quartic electroweak gauge boson couplings