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تسجيل مستخدم جديد$chi$PT Calculations with two-pion Loops for S-wave $pi^0$ Production in pp Collision
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The total cross section for the $pp to pp pi^0$ reaction at energies close to threshold is calculated within the frame of a chiral perturbation theory, taking into account tree and one loop diagrams up to chiral order D=2. Two-pion loop contributions dominate $pi^0$ production at threshold. The calculated cross section reproduces data, both scale and energy dependence, fairly well.
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The total cross section for the pp --> pp $pi^0$ reaction at energies close to threshold is calculated within the frame of a chiral perturbation theory. The tree and one loop diagrams up to chiral order D=2 contributions are taken into account. The $
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The total cross section for the pp to pp $pi^0$ reaction at energies close to threshold is calculated in a covariant one-boson-exchange model. The amplitudes for the elementary BN to N$pi^0$ processes are taken to be the sum of s, u and t pole terms.
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