The nucleon axial charge in full lattice QCD
نویسندگان
چکیده
(LHPC Collaboration) Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 Sloane Physics Laboratory, Yale University, New Haven, CT 06520 Department of Physics and Astronomy, Vrije Universiteit, 1081 HV Amsterdam, NL Current affiliation: Institut für Theoretische Physik, TU München, D-85747 Garching, Germany Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139 Current affiliation: Department of Physics, College of William and Mary, Williamsburg VA 23187-8795 and Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 7 Department of Physics, University of Arizona, 1118 E 4th Street, Tucson, AZ 85721 John von Neumann-Institut für Computing NIC/DESY, D-15738 Zeuthen, Germany (Dated: October 13, 2005)
منابع مشابه
Nucleon Spin Structures from Lattice QCD: Flavor Singlet Axial and Tensor Charges
The flavor singlet axial and tensor charges of the nucleon are calculated in lattice QCD. We find ∆Σ = ∆u+∆d+∆s = +0.638(54)− 0.347(46)− 0.109(30) = +0.18(10) for the axial charge and δΣ = δu+ δd + δs = +0.839(60)− 0.231(55)− 0.046(34) = +0.562(88) for the tensor charge. The result for the axial charge shows reasonable agreement with the experiment and that for the tensor charge is the first pr...
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