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- Cross_section_(physics) abstract "A cross section is the effective area that governs the probability of some scattering or absorption event. Together with particle density and path length, it can be used to predict the total scattering probability via the Beer–Lambert law.In nuclear and particle physics, the concept of a cross section is used to express the likelihood of interaction between particles.When particles in a beam are thrown against a foil made of a certain substance, the cross section is a hypothetical area measure around the target particles of the substance (usually its atoms) that represents a surface. If a particle of the beam crosses this surface, there will be some kind of interaction.The term is derived from the purely classical picture of (a large number of) point-like projectiles directed to an area that includes a solid target. Assuming that an interaction will occur (with 100% probability) if the projectile hits the solid, and not at all (0% probability) if it misses, the total interaction probability for the single projectile will be the ratio of the area of the section of the solid (the cross section, represented by ) to the total targeted area.This basic concept is then extended to the cases where the interaction probability in the targeted area assumes intermediate values - because the target itself is not homogeneous, or because the interaction is mediated by a non-uniform field. A particular case is scattering.".
- Cross_section_(physics) thumbnail Cross-section-illustration-simple.svg?width=300.
- Cross_section_(physics) wikiPageExternalLink v=onepage&q=Rate%20and%20cross%20section%20particle%20physics&f=false.
- Cross_section_(physics) wikiPageExternalLink C01161.html.
- Cross_section_(physics) wikiPageExternalLink R05169.html.
- Cross_section_(physics) wikiPageExternalLink c1.
- Cross_section_(physics) wikiPageExternalLink c3.
- Cross_section_(physics) wikiPageExternalLink pdg.lbl.gov.
- Cross_section_(physics) wikiPageExternalLink www-nds.iaea.org.
- Cross_section_(physics) wikiPageExternalLink www.nndc.bnl.gov.
- Cross_section_(physics) wikiPageID "7480".
- Cross_section_(physics) wikiPageRevisionID "599091644".
- Cross_section_(physics) hasPhotoCollection Cross_section_(physics).
- Cross_section_(physics) subject Category:Concepts_in_physics.
- Cross_section_(physics) subject Category:Dimensional_analysis.
- Cross_section_(physics) subject Category:Experimental_particle_physics.
- Cross_section_(physics) subject Category:Measurement.
- Cross_section_(physics) subject Category:Nuclear_physics.
- Cross_section_(physics) subject Category:Particle_physics.
- Cross_section_(physics) subject Category:Scattering.
- Cross_section_(physics) subject Category:Scattering_theory.
- Cross_section_(physics) type Abstraction100002137.
- Cross_section_(physics) type Cognition100023271.
- Cross_section_(physics) type Concept105835747.
- Cross_section_(physics) type Content105809192.
- Cross_section_(physics) type FundamentalPhysicsConcepts.
- Cross_section_(physics) type Idea105833840.
- Cross_section_(physics) type PsychologicalFeature100023100.
- Cross_section_(physics) comment "A cross section is the effective area that governs the probability of some scattering or absorption event.".
- Cross_section_(physics) label "Cross section (physics)".
- Cross_section_(physics) label "Wirkungsquerschnitt".
- Cross_section_(physics) sameAs Wirkungsquerschnitt.
- Cross_section_(physics) sameAs m.023hm.
- Cross_section_(physics) sameAs Q17128025.
- Cross_section_(physics) sameAs Q17128025.
- Cross_section_(physics) sameAs Cross_section_(physics).
- Cross_section_(physics) wasDerivedFrom Cross_section_(physics)?oldid=599091644.
- Cross_section_(physics) depiction Cross-section-illustration-simple.svg.
- Cross_section_(physics) isPrimaryTopicOf Cross_section_(physics).