D*Dpi coupling constant in 2+1 flavor lattice QCD

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2012

Author

Can, Kadir Utku

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Developments in high-performance computing instruments and advancements in the numerical algorithms combined with lattice gauge theory make it possible to simulate Quantum Chromodynamics (QCD), the theory of strongly-interacting quarks and gluons, numerically at nearly physical light-quark masses. In this work we present our results for the $D^*D\pi$ coupling constant as simulated on $32^3 \times 64$, unquenched $2+1$-flavor lattices. We estimate the coupling at the chiral limit as $g_{D^*D\pi} = 16.23 \pm 1.71$, which is in good agreement with its experimental value $g^{(exp)}_{D^*D\pi} = 17.9\pm0.3\pm1.9$ as obtained by CLEO II Collaboration.

Subject Keywords

Quantum chromodynamics., Mesons., Pulsars., Quarks., Gluons., Particles (Nuclear physics)., Lattice gauge theories.

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http://etd.lib.metu.edu.tr/upload/12614698/index.pdf
https://hdl.handle.net/11511/21931

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

K. U. Can, “D*Dpi coupling constant in 2+1 flavor lattice QCD,” M.S. - Master of Science, Middle East Technical University, 2012.