2003/12/22 by Andrei Kryjevski · 2 citations
Mathematics · Physics and Astronomy · #Geometry #High-Energy Particle Collisions Research #Mathematics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Scalar (mathematics) #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.70.094028
published as Phys.Rev. D70 (2004) 094028 · 8 pages, 3 figures; a typo in the results corrected
arxiv created 2003/12/22 · openalex publication_date 2004/11/17 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The scalar heavy quark content of the nucleon, Mq=⟨N|mqqq|N⟩, is relevant for computing the interaction of dark matter candidates with ordinary matter, while Ms is important for predicting the properties of dense matter. We compute Mq in perturbative QCD to O(\ensuremathα3). As one goes from Mt to Mc the leading order contribution decreases as the number of light quarks is dropping, while the radiative corrections grow and are all positive. The leading source of uncertainty in the calculation is due to the poorly known value of Ms. The Higgs-nucleon coupling is estimated to be ghNN\ensuremath≃1.7\ifmmode×\else\texttimes\fi10^\ensuremath-3.