IV. Alpha-Particle Physics in BPX

Particle Physics Aspects of Antihydrogen Studies with ALPHA at CERN

We discuss aspects of antihydrogen studies, that relate to particle physics ideas and techniques, within the context of the ALPHA experiment at CERN’s Antiproton Decelerator facility. We review the fundamental physics motivations for antihydrogen studies, and their potential physics reach. We argue that initial spectroscopy measurements, once antihydrogen is trapped, could provide competitive t...

Cvc in Particle Physics

We review the hypothesis of the conserved vector current (CVC) within the Standard Model. In addition to the classic tests, such as pion beta decay and neutrino scattering, we mention recent tests involving LEP data. As well as providing a clear indication that the isovector current is not conserved, rho-omega mixing offers a fascinating opportunity to study CP violation at B-factories and we o...

Particle Physics in Perspective

I review the development of particle physics in the past from a historical and methodological viewpoint. Particle physics has gone through certain characteristic periods in the course of discoveries and accumulation of knowledge, both experimental and theoretical. To analyze this situation, I draw on the theses of three stages and three modes, and illustrate the points with examples, up to the ...

Particle physics.

Bosonization in Particle Physics

Path integral techniques in collective fields are shown to be a useful analytical tool to reformulate a field theory defined in terms of microscopic quark (gluon) degrees of freedom as an effective theory of collective boson (meson) fields. For illustrations , the path integral bosonization approach is applied to derive a (non)linear σ model from a Nambu-Jona-Lasinio (NJL) quark model. The meth...