Flashcards
Particle physics
Flashcards do conjunto (36)
- 1bottomCharge: -1/3
Baryon number: 1/3
Lepton number: 0
Strangeness: 0 - 2TopCharge: 2/3
Baryon Number: 1/3
Lepton number: 0
Strangeness: 0 - 3downCharge: -1/3
Baryon number: 1/3
Lepton number: 0
Strangeness: 0 - 4anti-strangecharge: 1/3
Baryon number: -1/3
Lepton number: 0
Strangeness: +1 - 5anti-topCharge: -2/3
Baryon number: -1/3
Lepton number: 0
Strangeness: 0 - 6strangeCharge: -1/3
Baryon number: 1/3
Lepton number: 0
Strangeness: -1 - 7UpCharge: +2/3
Baryon number: +1/3
Lepton number: 0
Strangeness: 0 - 8anti-upCharge: -2/3
Baryon number: -1/3
Lepton number: 0
Strangeness: 0 - 9anti-downCharge: 1/3
Baryon number: -1/3
Lepton number: 0
Strangeness: 0 - 10CharmCharge: 2/3
Baryon number: 1/3
Lepton number: 0
Strangeness: 0 - 11anti-bottomCharge: 1/3
Baryon number: -1/3
Lepton number:0
Strangeness: 0 - 12anti-charmCharge: -2/3
Baryon number: -1/3
Lepton number:0
Strangeness: 0 - 13Beta + decayProton -> Neutron + anti-electron + Ve
- 14Beta - decayNeutron -> Proton + e- + anti-neutrino
- 15Specific chargeCharge / mass
- 16Strong nuclear force isn't effective at distances over...3 Fm
- 17When atoms are shot through thin gold foil most go straight through showing that...the atom is mostly empty space
- 18when atoms are shot through gold foil some are deflected through large angles showing...The positively charged nucleus is in the centre
- 19When atoms are shot through gold foil a small proportion of the particles are deflected through angles >90 showing that...The nucleus is very small compared to the rest of the atom.
- 20name the four fundamental forces of the universegravity
weak
strong
electromagnetic - 21the fundamental forces are known as...interactions
- 22The forces are carried by...exchange bosons
- 23The graph of the strong force over distance shows...<0.5 Fm repuslive
>0.5 Fm attractive
>3Fm negligable - 24Which fundamental particle does not feel the strong force?leptons
- 25Leptons interact via theweak force
- 26Quarks interact via thestrong force
- 27Quark composition of a baryonthree quarks no antiquarks
- 28Quark composition of a mesontwo quarks quark and antiquark pair
- 29Quark composition of a protonuud
- 30quark composition of a neutronudd
- 31anti-particle and particle collisions result inannihilation
- 32the mass of the particle and antiparticle is converted toenergy in the form of two gamma ray photons
- 33minimum energy of the photons produced is the same as therest energy of the starting particles
- 34pair productionwhen energy is converted to mass and equal amounts of matter and antimatter are formed.
- 35only occurs whenthere is enough energy to produce the masses of the two particles produced.
- 36scenario onemost likely a high energy photon passes near a nucleus
Informações
- Descrição
- A level Physics (Nuclear and particle physics) FlashCards sobre Particle physics, criado por Lauren Levy em 09-03-2018.
- Criado por
- Lauren Levy
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