Charm and Bottom Quark Masses: An Update

Jul, 2009
5 pages
Published in:
  • Phys.Rev.D 80 (2009) 074010
e-Print:
Report number:
  • TTP09-16,
  • SFB-CPP-09-49

Citations per year

200920132017202120240102030
Abstract: (arXiv)
Using new four-loop results for the heavy quark vacuum polarization and new data for bottom quark production in electron-positron annihilation, an update on the determination of charm- and bottom-quark masses through sum rules has been performed. The previous result for the charm-quark mass, mc(3GeV)=0.986(13)GeVm_c(3 {\rm GeV})= 0.986(13) {\rm GeV}, based on the lowest moment, is supported by the new results from higher moments which lead to consistent values with comparable errors. The new value for the bottom quark, mb(10GeV)=3.610(16)GeVm_b(10 {\rm GeV})= 3.610(16) {\rm GeV}, corresponding to mb(mb)=4.163(16)GeVm_b(m_b)= 4.163(16) {\rm GeV}, makes use both of the new data and the new perturbative results and is consistent with the earlier determination.
Note:
  • 5 pages, v2: formula for mb(mb) in eq.(14) corrected
  • 11.55.Hx
  • 12.38.Bx
  • 14.65.-q
  • precise charm and bottom quark mass
  • sum rules
  • perturbative calculations
  • vacuum polarization
  • heavy quark
  • electron positron: annihilation
  • charm: mass