42 Particle Physics Phenomenology

Transcription

1 42 Particle Physics Phenomenology Udom Robkob, Physics-MUSC April 26, 2017 Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

2 Today Topics The building block of all matters Particle accelerators and detectors High energy particles Quark structure Standard model and fundamental interactions Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

3 The Building Block of all Matters One has periodic table of all elements found on Earth that form to be all matters Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

4 The Building Block of all Matters Physics can go deeper inside the atomic system and found atomic nuclei and their particle, the nucleons This structure was first found by Rutherford, who used alpha particle as a probe or microscope in looking for atomic structure With a simple quantum idea, as λ = h/p, one can probe a small particle of side D λ/2 (It is the resonance tunneling/scattering.) Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

5 Particle Accelerators and Detectors From the equation of motion of a particle of mass m and charge q under electromagnetic field m d v dt = q ( E + v B ) One can see that the particle got accelerated by the electric field E, with the energy gain P = q E v, and changed direction by the magnetic field B, without any energy gain form the field. People accelerate charged particle with electric field and make a change of particle motion direction by magnetic field (1) Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

6 Particle Accelerators and Detectors The static field van de Graaff accelerator Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

7 Particle Accelerators and Detectors The synchronous filed linear accelerator Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

8 Particle Accelerators and Detectors The synchronous field cyclotron accelerator Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

9 Particle Accelerators and Detectors The synchronous fields synchrotron accelerator Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

10 Particle Accelerators and Detectors The collider beam For examples, LEP and LHC at CERN Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

11 Particle Accelerators and Detectors Particle detectors-classic bubble chamber Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

12 Particle Accelerators and Detectors Particle detectors-modern multi-propose electronic detectors (CMS) Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

13 Particle Accelerators and Detectors Particle detectors-modern multi-propose electronic detectors (CMS) Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

14 Observed Particles and Their Classification The Observed particles are classified to be leptons and hadrons Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

15 Observed Particles and Their Classification The K-meson observation Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

16 Quark Model of Hadrons One found that leptons are elementary particles, but Hadrons compose of quarks There are 6 flavors of quarks (also 6 flavors of leptons) Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

17 Quark Model of Hadrons Some basic quarks properties Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

18 Quark Model of Hadrons Some basic quarks compositions Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18

19 Quark Model of Hadrons Particle physics and the history of the Universe Udom Robkob, Physics-MUSC 42 Particle Physics Phenomenology April 26, / 18