Weizsäcker formula for nuclear binding energy
E535292
The Weizsäcker formula for nuclear binding energy is a semi-empirical mass formula that approximates the binding energy of atomic nuclei using macroscopic liquid-drop model terms.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
liquid-drop model
ⓘ
nuclear physics formula ⓘ semi-empirical mass formula ⓘ |
| accuracy | gives good global description of binding energies ⓘ |
| alsoAssociatedWith | Hans Bethe NERFINISHED ⓘ |
| alsoKnownAs |
Bethe–Weizsäcker formula
NERFINISHED
ⓘ
semi-empirical mass formula NERFINISHED ⓘ |
| appliesTo | bound atomic nuclei ⓘ |
| approximates | binding energy of atomic nuclei ⓘ |
| assumes | nucleus behaves like a charged liquid drop ⓘ |
| basedOn | liquid-drop model of the nucleus NERFINISHED ⓘ |
| category | nuclear mass models ⓘ |
| dependsOn | empirically fitted coefficients ⓘ |
| describes | nuclear binding energy ⓘ |
| field |
nuclear physics
ⓘ
nuclear structure ⓘ |
| hasParameter |
Coulomb coefficient a_c
ⓘ
asymmetry coefficient a_a ⓘ pairing coefficient a_p ⓘ surface coefficient a_s ⓘ volume coefficient a_v ⓘ |
| hasTerm |
Coulomb term
ⓘ
asymmetry term ⓘ pairing term ⓘ surface term ⓘ volume term ⓘ |
| historicalNote | developed in the 1930s ⓘ |
| includesEffect |
electrostatic repulsion between protons
ⓘ
neutron–proton asymmetry ⓘ nuclear surface energy ⓘ nuclear volume energy ⓘ nucleon pairing ⓘ |
| inspired | later macroscopic–microscopic nuclear models ⓘ |
| limitation |
does not describe shell effects
ⓘ
less accurate for light nuclei ⓘ neglects detailed nuclear structure ⓘ |
| mathematicalForm | binding energy expressed as sum of macroscopic terms ⓘ |
| namedAfter | Carl Friedrich von Weizsäcker NERFINISHED ⓘ |
| relatedConcept |
liquid-drop model of the nucleus
NERFINISHED
ⓘ
nuclear shell model ⓘ |
| relates | nuclear binding energy to mass number and proton number ⓘ |
| usedFor |
estimating fission and fusion energetics
ⓘ
estimating nuclear binding energies ⓘ estimating nuclear masses ⓘ predicting valley of beta stability ⓘ studying nuclear stability ⓘ |
| usesVariable |
mass number A
ⓘ
neutron number N ⓘ proton number Z ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.