KLOE ppg 2012 web page

Precision measurement of sigma(e^+e^- --> pi^+ pi^- gamma)/sigma(e^+e^- --> mu^+mu^- gamma) and determination of the pi^+pi^- contribution to the muon anomaly with the KLOE detector By KLOE/KLOE-2 Collaboration (D. Babusci et al.). December 2012. Physics Letters B 720 (2013) 336-343 <. e-Print Archive: http://arxiv.org/abs/arXiv:1212.4524 [abstract] [ps] [pdf]

Data files for the values given in Table 2 of http://arXiv.org/pdf/1212.4524

  • [spp12.dat]. Bare cross section $\sigma(e^+e^- \to \pi^+\pi^-)$, which includes FSR and excludes VP. [README]

  • [fpi12.dat]. Pion form factor including VP, but with FSR removed. [README]

    • Statistical errors:

  • [covspp12.dat]. Covariance matrix for $\sigma(e^+e^- \to \pi^+\pi^-)$. [README]

  • [icovspp12.dat]. Inverse covariance matrix for $\sigma(e^+e^- \to \pi^+\pi^-)$. [README]

  • [covfp12.dat]. Covariance matrix for the pion form factor. [README]

  • [icovfp12.dat]. Inverse covariance matrix for the pion form factor. [README]

    • Systematic errors:

    Background subtraction[README]:

  • [systot_excinc560_r.dat]

  • [sys_wei60.dat]

  • [systot_excinc560_rt.dat](The sum in quadrature of the above vectors)

    Acceptance[README]:

  • [syserrtherat_60.dat]

    Tracking[README]:

  • [sys_trkratio_60.dat]

    Trigger:0.001 (constant)

    L3:0.001 (constant)

    MTRK:0.002 (constant)

    Unfolding[README]:

  • [sys_unf60.dat]

    FSR:0.002 (constant)

    VP:0.001 (constant) only for FPI

    It's useful to have the following vectors:[README]:

  • [sys_fp12_cor.dat]

  • [sys_spp12_cor.dat]

  • [sys_fp12_tot.dat]

  • [sys_spp12_tot.dat]

    Goto 2010 publication webpage.
    20 Mar 2013 G.V.