1. Lepton number and baryon number are two types of quantum numbers. 2. X and respectively decay into either CP and quark baryon number . 3. Particles without any quarks have a baryon number of zero. 4. Electroweak sphalerons can only change the baryon number by 3. 5. He also proposed the law of conservation of baryon number . 6. Other conserved quantities like baryon number are the same. 7. Secondly, there are practical reasons for using baryon number and flavor isospin. 8. Baryon number is conserved, since both protons and neutrons have baryon number + 1.9. Baryon number is conserved, since both protons and neutrons have baryon number + 1. 10. The local topological winding number density is identified with the local baryon number density of the nucleon.