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Rhad: A program for the evaluation of the hadronic R-ratio in the perturbative regime of QCD

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arxiv hep-ph/0212294 v3 pith:SZKABR5G submitted 2002-12-19 hep-ph

classification hep-ph
keywords programrhadevaluationhadronicperturbativer-ratioallowannihilation
verification ladder T0 review T1 audit T2 compute T3 formal

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This paper describes the fortran program rhad which performs a numerical evaluation of the photon-induced hadronic R-ratio, R(s), related to the cross section for electron-positron annihilation, for a given center-of-mass energy \sqrt{s}. In rhad the state-of-the-art perturbative corrections to R(s) are implemented and the running and decoupling of the strong coupling constant and the quark masses is automatically treated consistently. Several options allow for a flexible use of the program.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. On the extraction of $\alpha_\textit{em}(m_Z^2)$ at Tera-$Z$

    hep-ph 2025-01 conditional novelty 7.0 of 10

    Forward-region Bhabha ratios at Tera-Z could extract alpha_em(m_Z^2) with a projected statistical sensitivity of about 6e-6, below the current bottleneck.

  2. Long distance effects in inclusive rare $B$ decays and phenomenology of $\bar{B}\to X_d \ell^+\ell^-$

    hep-ph 2019-08 conditional novelty 6.0 of 10

    A new Standard Model prediction for the inclusive \bar B -> X_d \ell^+\ell^- decay that incorporates charmonium resonances, resolved power corrections, QED logarithms, and five-body contributions.

  3. Strange and charm quark contributions to the muon anomalous magnetic moment in lattice QCD with twisted-mass fermions

    hep-lat 2024-11 accept novelty 5.0 of 10

    In isospin-symmetric QCD, lattice QCD gives the quark-connected strange and charm HVP contributions to the muon g-2 as 53.57(63) x 10^-10 and 14.56(13) x 10^-10.

  4. The anomalous magnetic moment of the muon in the Standard Model

    hep-ph 2020-06 accept novelty 2.0 of 10

    The Standard Model value for the muon anomalous magnetic moment is 116591810(43)×10^{-11}, 3.7σ below the Brookhaven experimental measurement.

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