Kaon to two-pion decay and pion-pion scattering from lattice QCD
In this work, we present a lattice QCD calculation of two closely related quantities: 1). The 𝜋𝜋 scattering phase shift for both 𝑰=0 and 𝑰=2 channels at seven energies in total, and 2). The 𝜟𝑰=1/2, 𝛫 → 𝜋𝜋 decay amplitude 𝐴₀ and 𝜖′, the measure of direct CP violation. These two results improve our ea...
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| Language: | English |
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2021
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| Online Access: | https://doi.org/10.7916/d8-tskp-ka68 |