소립자의 세계 | 세상은 무엇으로 이루어져있는가? | 경입자 붕괴 퀴즈

영원한 질문 근원에 대한 연구 원자 원자가 근원적인가? 핵이 근원적인가? 양성자와 중성자가
근원적인가? 현대 원자 모형 원자의 규모 우리가 찾는 것은 무엇인가? 표준모형 표준모형 퀴즈

쿼크와 경입자 물질과 반물질 반물질이란 무엇인가? 쿼크 쿼크 이름 짓기 하드론, 바리온, 메존 경입자 경입자 붕괴 경입자 수 보존 경입자 붕괴 퀴즈 뉴트리노 퀴즈 - 입자들은 무엇으로 이루어져 있는가?

네 개의 상호작용 어떻게 물질이 상호작용을 하는가? 눈에 보이지 않는 효과들 전자기력 나머지의 전자기력 핵은 어떤가? 강력 색 전하 쿼크의 구속 쿼크는 글루온을 방출한다 나머지의 강력 약력 전자기약력 중력 상호작용 요약 양자역학 파울리의 배타원리 페르미온과 보존 되돌아 볼 것들 섹션의 끝

Testing a theory Searching for the atom's structure Rutherford's result Rutherford's analysis How physicists experiment Deflected probe

Detecting the world A better microscope Wavelength - The cave Wavelength - The moral Wavelength and resolution explained The physicists tool: The accelerator Waves and particles The world's meterstick Mass and energy Energy-mass conversion

Accelerators How to obtain particles to accelerate Accelerating particles Accelerating particles: Animation Accelerator design Fixed target experiments Colliding beam experiment A linear or circular accelerator What makes particles go in a circle? Advantages of accelerator design Major accelerators The event Detectors Detector shapes

Modern detectors Typical detector components Measuring charge and momentum Detector cross section Quiz - Particle tracks The computer reconstruction A quark/gluon event The end End of section

The Role of the Higgs Boson The Theory of 1964 The Boson What is the Mass of the Boson? Collisions at the Large Hadron Collider can produce many things

The Announcement Fireworks on the 4th of July The Higgs Boson decays into other particles Easy to Detect How a Higgs boson "event" might look in ATLAS An example of an actual event with a possible Higgs decay

What is the Mechanism giving mass to fundamental particles? What is the Mechanism giving mass to fundamental particles? Part 2 How Does the Higgs Boson get its Mass?

Finding the Mass of the Higgs Boson Finding the Mass of the Higgs Boson, Part 2 Finding the mass of the Higgs from its Decay Products The data for Higgs boson come with a background Time evolution of Higgs Boson Data The Data for Higgs Boson Decaying to two photons

Shortcomings of the first data Is this particle really the Higgs Boson? Does it swim and quack like a duck? Where does most of the mass of the universe come from?

If there was no Higgs? So if there was no Higgs, what would the universe be like?

Is this Higgs Boson the Higgs Boson of the Standard Model? There is more to life than the Higgs Boson! End of section

Beyond the standard model The standard model as a theory Three generations Grand Unified Theory Forces and the Grand Unified Theory Supersymmetry String theory Extra dimensions Dark Matter End of section

What is decay? Radioactivity Radioactive particles Confusion about decays A look into the nucleus If it can happen, it will Half life Missing mass Particle decay mediators Virtual particles Different interactions Annhiliations Bubble chamber and decays Neutron beta decays Electron / positron annhiliation Top production End of section

표준모형 > 세상은 무엇으로 이루어져있는가? > 경입자 붕괴 퀴즈

퀴즈 - 경입자 붕괴

다음 중, 어떤 경입자 붕괴가 가능/불가능한가? 각각의 이유를 설명해보자.

(타우 경입자가 전자, 전자-반중성미자, 타우-중성미자로 붕괴)

(타우 경입자가 뮤온과 타우-중성미자로 붕괴)

이제 약간 어려운 문제는 :

(전자가 뮤온, 뮤온-반중성미자, 그리고 전자-중성미자로 붕괴)