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Revision notes on 11.2.2 Quark Composition for the CIE A Level Physics syllabus, written by the Physics experts at Save My Exams.
Antileptons have L = -1. All other particles have L = 0. There are SIX LEPTONS, arranged in three generations like the quarks and each lepton has an antiparticle. All ordinary matter is made up of FIRST GENERATION particles (i.e. up quarks, down quarks, electrons and electron-neutrinos).
Revision notes on 2.2.5 Quarks & Antiquarks for the AQA A Level Physics syllabus, written by the Physics experts at Save My Exams.
Quarks are a type of fundamental particle which combine to form hadrons such as protons and neutrons. There are six flavours (types) of quark: up, down, top, bottom, strange, and
Revision notes on 6.8.3 The Quark Model for the OCR A Level Physics syllabus, written by the Physics experts at Save My Exams.
3.2.1.6 - Quarks and antiquarks As mentioned above, quarks are fundamental particles which make up hadrons. Each type of quark has different properties, and you need to be aware of 3 types of quark and antiquark. For the below table, the properties of the respective antiquarks have the opposite sign: Type of quark Charge Baryon number Strangeness
Keep in mind that all leptons seem to be fundamental, whereas no hadrons are fundamental. There is strong evidence that quarks are the fundamental building blocks of hadrons as seen in Figure 33.15. Quarks are the second group of fundamental particles (leptons are the first).
