The Impact of σ(e+e−→hadrons) Measurements at Intermediate Energies on the Parameters of the Standard Model | Zendy

Johann H. Kühn | Zendy; Matthias Steinhauser | Zendy

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The Impact of σ(e⁺e⁻→hadrons) Measurements at Intermediate Energies on the Parameters of the Standard Model

Author(s) -

Johann H. Kühn,

Matthias Steinhauser

Publication year - 2002

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2002/10/018

Subject(s) - physics , hadron , particle physics , charm (quantum number) , nuclear physics , standard model (mathematical formulation) , coupling constant , sigma , coupling (piping) , range (aeronautics) , quark model , quark , quarkonium , mechanical engineering , archaeology , gauge (firearms) , materials science , composite material , quantum mechanics , engineering , history

We discuss the impact of precision measurements of $\sigma(e^+e^-\to{hadrons})$ in the center-of-mass range between 3 and 12 GeV, includingimprovements in the electronic widths of the narrow charmonium and bottoniumresonances, on the determination of parameters of the Standard Model. Inparticular we discuss the impact of potential improvements on the extraction ofthe strong coupling constant $\alpha_s$, on the evaluation of the hadroniccontributions to the electromagnetic coupling $\alpha(M_Z)$, and thedetermination of the charm and bottom quark masses.Comment: 8 page

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