2025年度 (最新) 学院等開講科目理学院物理学系物理学コース

ハドロン物理学 I

開講元: 物理学コース
担当教員: 藤岡宏之
授業形態: 講義
メディア利用科目: -
曜日・時限 (講義室): 月3-4 (W5-105)
クラス: -
科目コード: PHY.F438
単位数: 100
開講時期: 2025年度
開講クォーター: 1Q
シラバス更新日: 2025年3月31日
使用言語: 英語

シラバス

授業の目的（ねらい）、概要

The minimum elements of matter which can be observed are hadrons and leptons. Hadrons are particles interacting with strong forces, such as proton and pion, and are composed of quarks and gluons. Owing to the color confinement phenomenon, quarks and gluons are confined in the hadrons and are never observed directly. Most of the visible mass in our universe is due to the hadron mass. In the lecture, properties of hadrons are explained in both theoretical and experimental points of view. In the descriptions of the hadron structure and dynamics, symmetries play important roles. Basics of quantum chromodynamics (QCD), which is the fundamental theory of the dynamics of quarks and gluons, are also explained. The nature of the coupling constant of the strong interaction, that is called as asymptotic freedom, is the outstanding feature of QCD, and the spontaneous breaking of chiral symmetry is responsible for the mass generation of quarks. Effective models based on chiral symmetry for hadron physics are also introduced.

The purpose of the course is to let the students understand hadrons which constitute the present universe, and to understand quarks, gluons, and QCD which is the theory of strong interaction. Another purpose is to let the students know theoretical tools to study hadron physics.

到達目標

[Objectives] Students will understand the basics of hadron physics by taking this course. Students will understand the features of strong interaction, the description of hadrons based on quarks, and features of quantum chromodynamics.

[Topics] Strong interaction, symmetries in hadron physics, properties of hadron, quark model, quark flavors, quark generations, color charge, gluons, asymptotic freedom, elastic scattering and deep inelastic scattering, chiral effective theories, chiral symmetry, current algebra, hadron mass generation, etc.

キーワード

strong interaction, hadron, mesons, baryons

学生が身につける力

専門力
教養力
コミュニケーション力
展開力 (探究力又は設定力)
展開力 (実践力又は解決力)

授業の進め方

The class is conducted using both slides and board writing.

授業計画・課題

	授業計画	課題
第1回	Hadrons and strong interaction	Explain what hadrons are.
第2回	Hadron spectroscopy	Learn how to describe short-living particles
第3回	Relativistic quantum mechanics	To be able to describe spin 1/2 fermion in relativistic form
第4回	Symmetries in hadron physics	Explain the breaking patterns of symmetries in hadron physics.
第5回	Flavors of quarks, classification of baryons and mesons	Explain the compositions of baryons and mesons based on flavor symmetry.
第6回	Quark model	Construct the proton wavefunction based on the quark model.
第7回	Structure of nucleon	Explain the form factors and the meaning of Bjorken scaling.

準備学修(事前学修・復習)等についての指示

学修効果を上げるため，教科書や配布資料等の該当箇所を参照し，「毎授業」授業内容に関する予習と復習（課題含む）をそれぞれ概ね100分を目安に行うこと。

教科書

not specified

参考書、講義資料等

B. ポッフ他, 素粒子・原子核物理入門
F. ハルツェン, A.D. マーチン, クォークとレプトン　ー現代素粒子物理学入門ー
Michael E. Peskin, ペスキン素粒子物理学

成績評価の方法及び基準

Your grade will be determined by short reports and test scores.

履修の条件・注意事項

It is required that the students have enough knowledge on quantum physics.