"Electroweak theory"의 두 판 사이의 차이
둘러보기로 가기
검색하러 가기
(피타고라스님이 이 페이지의 위치를 <a href="/pages/6494663">particle physics and the Standard model</a>페이지로 이동하였습니다.) |
Pythagoras0 (토론 | 기여) |
||
| (사용자 3명의 중간 판 19개는 보이지 않습니다) | |||
| 1번째 줄: | 1번째 줄: | ||
| − | + | ==introduction== | |
| − | * Glashow-Weinberg-Salam model | + | * Glashow-Weinberg-Salam model |
| + | * doublets of leptons and quarks => SU(2) symmetry | ||
| − | * W-boson mass causes some trouble | + | * W-boson mass causes some trouble |
| − | * Goldston boson | + | * Goldston boson |
| − | * Higgs mechanism | + | * [[Higgs mechanism]] |
| − | + | ||
| − | + | ||
| − | + | ==recipe== | |
| − | * | + | * start with the local gauge symmetric SU(2) Lagrangian with massless gauge fields |
| − | ** | + | * introduce the Higgs field |
| + | * break the local gauge symmetry in such a way by a new interaction between the Higgs field and gauge fields so as to generate terms in the Lagrangian that look like mass terms for gauge fields | ||
| − | + | ||
| − | + | ||
| − | + | ==adjoining U(1) symmetry== | |
| − | + | <math>\begin{pmatrix}\gamma \\Z^0 \end{pmatrix} = \begin{pmatrix}\cos \theta_W & \sin \theta_W \\-\sin \theta_W & \cos \theta_W \end{pmatrix} \begin{pmatrix}B^0 \\W^0 \end{pmatrix} </math> | |
| − | |||
| − | |||
| − | |||
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ==weak interactions== | |
| − | + | * massive gauge bosons | |
| + | ** W and Z bosons | ||
| − | + | ||
| − | + | ||
| − | + | ==consequences== | |
| − | + | * neutral currents | |
| + | * new mesons | ||
| + | * parity violating effects | ||
| + | * W and Z bosons | ||
| − | + | ||
| − | + | ||
| − | + | ==W-boson== | |
| − | |||
| − | |||
| − | + | * massive charged spin 1 boson | |
| − | + | ||
| − | + | ||
| − | + | ==Z-boson== | |
| − | |||
| − | |||
| − | + | * massive neutral spin 1 boson | |
| − | + | ||
| − | + | ||
| − | + | ==weak force== | |
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | + | * neutron beta decay | |
| + | * muon decay | ||
| + | * high-energy neutrino collisions with matter | ||
| − | + | ||
| − | + | ||
| − | + | ==three classes of weak interactions== | |
| − | + | * leptonic reactions | |
| + | * semi-leptonic reactions | ||
| + | * hadronic weak reactions | ||
| − | + | ||
| − | + | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | + | ==Higgs mechanism== | |
| − | + | * Higges field | |
| + | ** pervasive universal background field that modifies the simple electroweak gauge theory as the gravitational field caused by mass | ||
| + | * two initial charged massless weak field W, W^{+} | ||
| + | ** mix with Higgs fields H^{+}, H^{-} | ||
| + | ** W fields get mass | ||
| + | * two electrically neutral massless fields W^0, G^0 | ||
| + | ** mix with neutral Higgs field H^0 | ||
| + | ** Z-field massive neutral weak field | ||
| + | * resulting bosons | ||
| + | ** W - massive charged spin 1 | ||
| + | ** Z- massive neutral spin 1 boson | ||
| + | ** photon - massless spin 1 | ||
| + | ** Higgs - massive neutral scalar spin 0 | ||
| − | + | ||
| + | |||
| + | |||
| + | ==related items== | ||
| + | |||
| + | |||
| + | |||
| + | |||
| + | |||
| + | |||
| + | ==encyclopedia== | ||
| + | |||
| + | * http://en.wikipedia.org/wiki/Electroweak_interaction | ||
* http://en.wikipedia.org/wiki/Quantum_electrodynamics | * http://en.wikipedia.org/wiki/Quantum_electrodynamics | ||
* http://en.wikipedia.org/wiki/Beta_decay | * http://en.wikipedia.org/wiki/Beta_decay | ||
* http://en.wikipedia.org/wiki/weak_force | * http://en.wikipedia.org/wiki/weak_force | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | + | ||
| + | |||
| + | ==expositions== | ||
| + | * Kibble, T. W. B. ‘History of Electroweak Symmetry Breaking’. arXiv:1502.06276 [hep-Ex, Physics:hep-Ph, Physics:hep-Th, Physics:physics], 22 February 2015. http://arxiv.org/abs/1502.06276. | ||
| − | |||
| − | + | ==articles== | |
| + | * Hitoshi Murayama [http://arxiv.org/abs/hep-ex/9606001 Why do we want a linear collider], 1996 | ||
| + | [[분류:physics]] | ||
| + | [[분류:math and physics]] | ||
| + | [[분류:migrate]] | ||
| − | * [ | + | ==메타데이터== |
| − | ** | + | ===위키데이터=== |
| + | * ID : [https://www.wikidata.org/wiki/Q466416 Q466416] | ||
| + | ===Spacy 패턴 목록=== | ||
| + | * [{'LOWER': 'electroweak'}, {'LEMMA': 'interaction'}] | ||
| + | * [{'LOWER': 'electroweak'}, {'LEMMA': 'force'}] | ||
2021년 2월 17일 (수) 01:35 기준 최신판
introduction
- Glashow-Weinberg-Salam model
- doublets of leptons and quarks => SU(2) symmetry
- W-boson mass causes some trouble
- Goldston boson
- Higgs mechanism
recipe
- start with the local gauge symmetric SU(2) Lagrangian with massless gauge fields
- introduce the Higgs field
- break the local gauge symmetry in such a way by a new interaction between the Higgs field and gauge fields so as to generate terms in the Lagrangian that look like mass terms for gauge fields
adjoining U(1) symmetry
\(\begin{pmatrix}\gamma \\Z^0 \end{pmatrix} = \begin{pmatrix}\cos \theta_W & \sin \theta_W \\-\sin \theta_W & \cos \theta_W \end{pmatrix} \begin{pmatrix}B^0 \\W^0 \end{pmatrix} \)
weak interactions
- massive gauge bosons
- W and Z bosons
consequences
- neutral currents
- new mesons
- parity violating effects
- W and Z bosons
W-boson
- massive charged spin 1 boson
Z-boson
- massive neutral spin 1 boson
weak force
- neutron beta decay
- muon decay
- high-energy neutrino collisions with matter
three classes of weak interactions
- leptonic reactions
- semi-leptonic reactions
- hadronic weak reactions
Higgs mechanism
- Higges field
- pervasive universal background field that modifies the simple electroweak gauge theory as the gravitational field caused by mass
- two initial charged massless weak field W, W^{+}
- mix with Higgs fields H^{+}, H^{-}
- W fields get mass
- two electrically neutral massless fields W^0, G^0
- mix with neutral Higgs field H^0
- Z-field massive neutral weak field
- resulting bosons
- W - massive charged spin 1
- Z- massive neutral spin 1 boson
- photon - massless spin 1
- Higgs - massive neutral scalar spin 0
encyclopedia
- http://en.wikipedia.org/wiki/Electroweak_interaction
- http://en.wikipedia.org/wiki/Quantum_electrodynamics
- http://en.wikipedia.org/wiki/Beta_decay
- http://en.wikipedia.org/wiki/weak_force
expositions
- Kibble, T. W. B. ‘History of Electroweak Symmetry Breaking’. arXiv:1502.06276 [hep-Ex, Physics:hep-Ph, Physics:hep-Th, Physics:physics], 22 February 2015. http://arxiv.org/abs/1502.06276.
articles
- Hitoshi Murayama Why do we want a linear collider, 1996
메타데이터
위키데이터
- ID : Q466416
Spacy 패턴 목록
- [{'LOWER': 'electroweak'}, {'LEMMA': 'interaction'}]
- [{'LOWER': 'electroweak'}, {'LEMMA': 'force'}]