| Autor: |
Nanamura, Takuya, Miwa, Koji, Hayakawa, Shuhei H., Honda, Ryotaro, Nakada, Yoshiyuki, Takahashi, Toshiyuki, Ukai, Mifuyu, Yamamoto, Takeshi O. |
| Předmět: |
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| Zdroj: |
EPJ Web of Conferences; 11/18/2022, Vol. 271, p1-5, 5p |
| Abstrakt: |
We performed a novel Σ+p scattering experiment at the J-PARC Hadron Experimental Facility. Approximately 2400 Σ+p scattering events were identified by a kinematical consistency check for the recoil proton. The differential cross sections of the Σ+p elastic scattering were derived with better precision than in previous experiments. By exploiting high-quality differential cross section data and the simple representation of Σ+p interaction in the SU(3) flavor symmetry, we performed a phase-shift analysis on hyperon-nucleon scattering data for the first time. The absolute value of the phase shift of the 3S1 channel, where a large repulsive force was predicted due to the Pauli exclusive effect between quarks, was evaluated. These results indicate that the interaction of the 3S1 channel in the Σ+p channel is moderately repulsive, as the Nijmegen extended-soft-core models predicted. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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