ELPH研究会C035「実験、反応・構造計算、格子QCD で解き明かすハドロン分光」

Session

中間子原子・中間子原子核

Nov 9, 2023, 9:00 AM

　三神峯ホール (東北大学電子光理学研究センター)

18. π中間子原子の精密分光による原子核中のカイラル凝縮の定量評価

板橋 健太 (理研)

11/9/23, 9:00 AM

π中間子原子の精密分光実験により、高密度媒質としての原子核中でカイラル対称性が部分的に回復していることを示すデータを得た。本講演では、実験、データ解析から導出過程までを議論する。また、現在計画中の逆運動学を用いた分光実験についても触れる。

19. The anomaly-driven breaking of chiral symmetry in the NJL model and the instanton liquid model

須田 大翔 (東京工業大学)

11/9/23, 9:30 AM

Using the interacting instanton liquid model (IILM), we study an anomaly-driven breaking of chiral symmetry inspired by the Nambu-Jona-Lasinio (NJL) model with anomaly term, i.e., the KMT determinant term. In the NJL model, chiral symmetry dynamically breaks when there exists a sufficiently strong four-point quark interaction. Even though the four-point interaction is weaker than its critical...

20. From hadrons to quarks in neutron stars: why the quark substructure of hadrons are important

KOJO TORU (Tohoku Univeristy)

11/9/23, 9:50 AM

Recent neutron star observations indicate that equations of state of QCD matter show soft-to-stiff evolution from nuclear to quark matter. This trend is difficult to explain in purely hadronic picture and a hybrid model of hadron-to-quark matter transition. It is important to treat hadrons as composite particles and include constraints coming from the quark substructure. I discuss how the...