Weak charge

The term “ weak charge” is used inconsistently in the literature and is used depending on the author

• the weak hypercharge
• the weak isospin or its third component
• one of the two coupling constants of the electroweak interaction , mostly ${\displaystyle g,g'}$ ${\displaystyle g}$
• the product of the third component of the weak isospin and the coupling constant ${\displaystyle g}$

In the standard model , the weak interaction results from the electroweak symmetry breaking . According to the Fabri-Picasso theorem , however, there are no charges for broken symmetries. The weak isospin is the charge of the weak interaction in the unbroken phase.

Individual evidence

1. ↑ Peter Watkins: Story of the W and Z . Cambridge University Press, Cambridge 1986, ISBN 978-0-521-26801-1 , pp. 54 ( Google Books ).
2. ↑ Jörn Bleck-Neuhaus: Elementary Particles. From the atoms to the standard model to the Higgs boson . 2nd Edition. Springer, Berlin Heidelberg 2013, ISBN 978-3-642-32578-6 .
3. ↑ Bogdan Povh et al .: Particles and Cores. An introduction to the physical concepts . 9th edition. Springer, Berlin Heidelberg 2014, ISBN 978-3-642-37821-8 .
4. ^ Ian JR Aitchison and Anthony JG Hey: Gauge Theories in Particle Physics, Volume 2: Non-Abelian Gauge Theories: QCD and the Electroweak Theory . 3. Edition. Institute of Physics Publishing, Bristol, Philadelphia 2004, ISBN 0-7503-0950-4 (English).
5. ↑ Lewis H. Ryder: Quantum Field Theory . 2nd Edition. Cambridge University Press, Cambridge 1996, ISBN 0-521-47242-3 (English).