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- {{Short description|Proposed Chinese electron–positron collider}} ...''CEPC''') is a proposed Chinese [[Electron–positron annihilation|electron positron collider]] for experimenting on the [[Higgs boson]]. It would be the world' ...5 KB (731 words) - 06:30, 29 January 2025
- ...ed that are, in the [[Frame of reference|reference frame]] of the electron-positron pair, emitted in exactly opposite directions. In the laboratory frame, ther ...ef group=note>This sensitivity is used in [[Positron Lifetime Spectroscopy|positron lifetime spectroscopy]] to investigate even very low defect concentrations. ...19 KB (2,870 words) - 21:49, 25 February 2025
Page text matches
- ===Electron-positron annihilation example=== [[File:Feynman EP Annihilation.svg|thumb|Feynman Diagram of Electron-Positron Annihilation]] ...6 KB (884 words) - 06:09, 21 January 2025
- ...by the according diverse positron range of the actual [[Positron emission|positron emitting]] [[radionuclide]]. In particular this allows to use differing rad ...el, M. Hentschel, B. Klaeser, T. Krause: "Transconvolution and the virtual positron emission tomograph–a new method for cross calibration in quantitative PET/C ...5 KB (711 words) - 18:33, 8 June 2024
- {{Short description|Proposed Chinese electron–positron collider}} ...''CEPC''') is a proposed Chinese [[Electron–positron annihilation|electron positron collider]] for experimenting on the [[Higgs boson]]. It would be the world' ...5 KB (731 words) - 06:30, 29 January 2025
- In [[pair production]], a photon creates an electron positron pair. In the process of photons scattering in [[air]] (e.g. in [[lightning] ...[[speed of light]]. The kinetic energies <math> E_{kin,+/-} </math> of the positron and electron relate to their total energies <math> E_{+,-}</math> and [[mom ...8 KB (1,407 words) - 00:55, 14 July 2024
- | [[File:Electron-positron-annihilation.svg|200px]] | electron-positron scattering ...4 KB (512 words) - 11:38, 1 January 2025
- ===Positron emission tomography (PET)=== {{Main|Positron emission tomography}} ...8 KB (1,230 words) - 02:29, 24 July 2024
- | [[Positron]] || {{subatomic particle|positron |link=yes}} || +1 || +3 ...5 KB (699 words) - 06:53, 10 August 2023
- ...r, in the 1930s, other forms of beta decay known as β<sup>+</sup> decay ([[positron emission]]) and [[electron capture]] were discovered, in which the atomic n ...2 KB (306 words) - 16:28, 22 October 2023
- ...ed that are, in the [[Frame of reference|reference frame]] of the electron-positron pair, emitted in exactly opposite directions. In the laboratory frame, ther ...ef group=note>This sensitivity is used in [[Positron Lifetime Spectroscopy|positron lifetime spectroscopy]] to investigate even very low defect concentrations. ...19 KB (2,870 words) - 21:49, 25 February 2025
- ...ta decay]] is energetically favorable for [[neutron-rich]] nuclides, and [[positron decay]] is favorable for strongly [[neutron-deficient]] nuclides. Both [[de ...ctive [[iodine-126]] has almost equal probabilities for two decay modes: [[positron emission]], leading to [[tellurium-126]], and [[beta emission]], leading to ...6 KB (925 words) - 06:02, 17 February 2025
- If (classically speaking) both the electron and the positron take the ''w'' paths in their respective interferometers, they will annihil ...their ''d'' detectors; and a 4 in 16 (1 in 4) chance that the electron and positron annihilate, so neither is detected. Notice that a detection in both ''d'' d ...12 KB (1,872 words) - 19:01, 21 November 2024
- ...a plastic target. The decay is reconstructed to look for a back-to-back [[positron]] and monochromatic photon (52.8 MeV). A liquid xenon [[scintillator]] wit ...3 KB (395 words) - 20:16, 26 September 2024
- ...ive use in improving the quality of these traps and in tailoring of both [[positron]] and [[antiproton]] (i.e. [[antiparticle]]) plasmas for a variety of end u ...ty for a SCP confined in a field of strength B.|thumb|Fig. 3. Density of a positron plasma as a function of applied RW frequency. The solid line corresponds to ...19 KB (2,713 words) - 04:26, 30 January 2024
- ...impression shows the [[dark photon]] ''A''′ decays into an electron and a positron.<ref>{{cite press release |date=10 November 2014 |title=Viewpoint: New Ligh ...But, it could be unstable and massive, quickly decays into [[electron]]–[[positron]] pairs, and interact with electrons. ...11 KB (1,466 words) - 15:48, 22 January 2025
- ...wards stability for decays involving large nuclei with too few neutrons. [[Positron emission]] and [[electron capture]] also increase the ratio, while [[beta d ...4 KB (576 words) - 13:51, 29 January 2024
- ...ized uptake value''' ('''SUV''') is a [[nuclear medicine]] term, used in [[positron emission tomography]] (PET) as well as in modern calibrated single photon e ...c_{img}(t)} {ID / BW}</math> <ref>{{Citation |title=Chapter 11 - Oncology: Positron Emission Tomography |date=2014-01-01 |url=https://www.sciencedirect.com/sci ...11 KB (1,720 words) - 17:11, 30 January 2025
- ...tion|electron-positron pair production]] in the nucleus field and electron-positron pair production in the [[electron]] field (triplet production). The cross s ...energy of the incident photon is converted into the mass of an electron-[[positron]] (e<sup>−</sup>e<sup>+</sup>) [[Pair production|pair]]. The cross section ...19 KB (2,587 words) - 10:54, 10 February 2025
- ...[radioactive tracer]] for measuring and quantifying [[blood flow]] using [[positron emission tomography]] (PET) in the heart, brain and [[tumor]]s. ...with a [[half-life]] of about 2.04 minutes to nitrogen-15, emitting a positron.<ref name = "NNDC"> ...14 KB (2,045 words) - 01:49, 13 September 2024
- ...leading [[Scattering cross-section|cross sections]] of the [[electron]]-[[positron]] [[annihilation]] in the final states with [[charged particle]]s were meas * Non-[[Resonance (particle physics)|resonant]] electron-positron [[annihilation]] into [[hadron]]s ...9 KB (1,316 words) - 06:56, 9 September 2024
- ...thor-link=Wendell H. Furry|date=1937-01-15|title=A Symmetry Theorem in the Positron Theory|url=https://link.aps.org/doi/10.1103/PhysRev.51.125|journal=Physical ...e indirectly, such as through [[bremsstrahlung]] experiments from electron-positron collisions.<ref>{{cite journal|last1=Basham|first1=C.L.|authorlink1=|last2= ...10 KB (1,400 words) - 21:58, 20 May 2024