Chiral corrections to nucleon two- and three-point correlation functions
نویسندگان
چکیده
منابع مشابه
Chiral corrections to kaon-nucleon scattering lengths
We calculate the threshold T-matrices of kaon-nucleon and antikaon-nucleon scattering to one loop order in SU(3) heavy baryon chiral perturbation theory. To that order the complex-valued isospin-1 KN threshold T-matrix can be successfully predicted from the isospin-0 and 1 KN threshold T-matrices. As expected perturbation theory fails to explain the isospin-0 KN threshold T-matrix which is comp...
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V. Bernard,1,* E. Epelbaum,2,† H. Krebs,2,‡ and Ulf-G. Meißner3,4,§ 1Institut de Physique Nucléaire, CNRS/Univ. Paris-Sud 11, (UMR 8608), F-91406 Orsay Cedex, France 2Institut für Theoretische Physik II, Ruhr-Universität Bochum, D-44780 Bochum, Germany 3Universität Bonn, Helmholtz-Institut für Strahlenund Kernphysik (Theorie) and Bethe Center for Theoretical Physics, D-53115 Bonn, Germany 4Fors...
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We present a new algorithm to rapidly compute the two-point (2PCF), three-point (3PCF) and n-point (n-PCF) correlation functions in roughly O(N) time for N particles, instead of O(Nn) as required by brute force approaches. This technique exploits node-to-node correlations of a recursive bisectional binary tree. A balanced tree construction minimizes the depth of the tree and the worst case erro...
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The vector and axial-vector two-point functions are calculated to nextto-next-to-leading order in Chiral Perturbation Theory for three light flavours. We also obtain expressions at the same order for the masses, mπ, m 2 K and mη, and the decay constants, Fπ, FK and Fη . We present some numerical results after a simple resonance estimate of some of the new O(p6) constants. PACS: 12.39.F, 14.40.A...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2015
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.91.094510