Matches in SemOpenAlex for { <https://semopenalex.org/work/W1994928577> ?p ?o ?g. }
- W1994928577 abstract "We calculate the two-pion wave function in the ground state of the $I=2$ $S$-wave system and find the interaction range between two pions, which allows us to examine the validity of the necessary condition for the finite-volume method for the scattering length proposed by Luscher. We work in the quenched approximation employing a renormalization group improved gauge action for gluons and an improved Wilson action for quarks at $1/a=1.207(12)text{ }mathrm{GeV}$ on ${16}^{3}ifmmodetimeselsetexttimesfi{}80$, ${20}^{3}ifmmodetimeselsetexttimesfi{}80$, and ${24}^{3}ifmmodetimeselsetexttimesfi{}80$ lattices. We conclude that the necessary condition is satisfied within the statistical errors for the lattice sizes $Lensuremath{ge}24$ (3.92 fm) when the quark mass is in the range that corresponds to ${m}_{ensuremath{pi}}^{2}=0.273--0.736text{ }{mathrm{GeV}}^{2}$. We obtain the scattering length with a smaller statistical error from the wave function than from the two-pion time correlator." @default.
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- W1994928577 date "2005-05-16" @default.
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- W1994928577 title "<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>I</mml:mi><mml:mo>=</mml:mo><mml:mn>2</mml:mn></mml:math>pion scattering length from two-pion wave functions" @default.
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- W1994928577 doi "https://doi.org/10.1103/physrevd.71.094504" @default.
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