RELATIVISTIC 3-PARTICLE SCATTERING EQUATIONS
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American Physical Soc
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American Physical Society (APS)
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We derive a set of relativistic three-particle scattering equations in the three-particle c.m. frame employing a relativistic three-particle propagator suggested long ago by Ahmadzadeh and Tjon in the c.m. frame of a two-particle subsystem. We make the coordinate transformation of this propagator from the c.m. frame of the two-particle subsystem to the three-particle c.m. frame. We also point out that some numerical applications of the Ahmadzadeh and Tjon propagator to the three-nucleon problem use unnecessary nonrelativistic approximations which do not simplify the computational task, but violate constraints of relativistic unitarity and/or covariance.
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Physical Review C. College Pk: American Physical Soc, v. 48, n. 4, p. 2105-2107, 1993.
