ローパー共鳴
1. Roper resonanceThe Roper resonance, also known as P11(1440), is an unstable baryon state/particle with a mass of about 1,440 MeV/c and with a relatively wide full Breit-Wigner width Γ≈300 MeV/c. It contains three quarks (up or down) with total spin J=1/2 and total isospin I=1/2. In the quark model it is considered to be a radially excited three-quark state with radial quantum number N=2 and positive parity.
Read “Roper resonance” on English Wikipedia
Read “ローパー共鳴” on Japanese Wikipedia
Read “Roper resonance” on DBpedia
Read “Roper resonance” on English Wikipedia
Read “ローパー共鳴” on Japanese Wikipedia
Read “Roper resonance” on DBpedia
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