High-Energy γ -Ray Source from Electron-Positron Pair Annihilation

Tsai, Yung-Su

doi:10.1103/PhysRev.137.B730

Title: High-Energy $γ$ -Ray Source from Electron-Positron Pair Annihilation

Abstract

Problems associated with the use of the process e⁺+e^-→2$$\gamma$$ as a source for high-energy $$\gamma$$ rays are investigated. The polarization of the $$\gamma$$'s is shown to be negligible at high energies. The spread of $$\gamma$$ spectra at a fixed angle due to radiative corrections is investigated. Terms like ($$\frac{a}{π}$$) 1n² ($$\frac{4E^2}{m^2}$$) are associated with infrared divergence and disappear with a reasonable energy resolution. The result is very similar to Schwinger's corrections without vacuum polarization. Our result was found to be also usable in the colliding-beam experiment without any modification, under certain conditions.

Authors:

Tsai, Yung-Su ^[1]

Stanford Univ., CA (United States). Stanford Linear Accelerator Center

Publication Date:: 1965-02-01

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1444159

Report Number(s):: SLAC-PUB-0045
Journal ID: ISSN 0031-899X; PHRVAO

Grant/Contract Number:: AC02-76SF00515

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review

Additional Journal Information:: Journal Volume: 137; Journal Issue: 3B; Journal ID: ISSN 0031-899X

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Tsai, Yung-Su. High-Energy γ -Ray Source from Electron-Positron Pair Annihilation.  United States: N. p., 1965. 
Web.  doi:10.1103/PhysRev.137.B730.

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                    Tsai, Yung-Su. High-Energy γ -Ray Source from Electron-Positron Pair Annihilation.  United States.  https://doi.org/10.1103/PhysRev.137.B730

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                    Tsai, Yung-Su. Mon .  
"High-Energy γ -Ray Source from Electron-Positron Pair Annihilation".  United States.  https://doi.org/10.1103/PhysRev.137.B730.  https://www.osti.gov/servlets/purl/1444159.

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@article{osti_1444159,

  title        = {High-Energy γ -Ray Source from Electron-Positron Pair Annihilation},

  author       = {Tsai, Yung-Su},

  abstractNote = {Problems associated with the use of the process e++e-→2$\gamma$ as a source for high-energy $\gamma$ rays are investigated. The polarization of the $\gamma$'s is shown to be negligible at high energies. The spread of $\gamma$ spectra at a fixed angle due to radiative corrections is investigated. Terms like ($\frac{a}{π}$) 1n2 ($\frac{4E^2}{m^2}$) are associated with infrared divergence and disappear with a reasonable energy resolution. The result is very similar to Schwinger's corrections without vacuum polarization. Our result was found to be also usable in the colliding-beam experiment without any modification, under certain conditions.},

  doi          = {10.1103/PhysRev.137.B730},

  journal      = {Physical Review},

  number       = 3B,

  volume       = 137,

  place        = {United States},

  year         = {1965},

  month        = {2}

}

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https://doi.org/10.1103/PhysRev.137.B730

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Works referenced in this record:

Radiative Corrections to Compton Scattering
journal, January 1952

Brown, L. M.; Feynman, R. P.
Physical Review, Vol. 85, Issue 2
DOI: 10.1103/PhysRev.85.231

Radiative Corrections to Electron-Proton Scattering
journal, June 1961

Tsai, Yung-Su
Physical Review, Vol. 122, Issue 6
DOI: 10.1103/PhysRev.122.1898

Polarization Effects in the Two-Quantum Annihilation of Positrons
journal, May 1957

Page, Lorne A.
Physical Review, Vol. 106, Issue 3
DOI: 10.1103/PhysRev.106.394

Theory of Photons and Electrons
journal, April 1957

Jauch, J. M.; Rohrlich, F.; Teng, L.
American Journal of Physics, Vol. 25, Issue 4
DOI: 10.1119/1.1934424

The infrared divergence phenomena and high-energy processes
journal, June 1961

Yennie, D. R.; Frautschi, S. C.; Suura, H.
Annals of Physics, Vol. 13, Issue 3
DOI: 10.1016/0003-4916(61)90151-8

Radiative Corrections to Pair Annihilation
journal, March 1957

Harris, Isadore; Brown, Laurie M.
Physical Review, Vol. 105, Issue 5
DOI: 10.1103/PhysRev.105.1656

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Similar Records

Title: High-Energy γ -Ray Source from Electron-Positron Pair Annihilation

Abstract

Citation Formats

Figures / Tables:

Radiative Corrections to Compton Scattering journal, January 1952

Radiative Corrections to Electron-Proton Scattering journal, June 1961

Polarization Effects in the Two-Quantum Annihilation of Positrons journal, May 1957

Theory of Photons and Electrons journal, April 1957

The infrared divergence phenomena and high-energy processes journal, June 1961

Radiative Corrections to Pair Annihilation journal, March 1957

Title: High-Energy $γ$ -Ray Source from Electron-Positron Pair Annihilation

Radiative Corrections to Compton Scattering
journal, January 1952

Radiative Corrections to Electron-Proton Scattering
journal, June 1961

Polarization Effects in the Two-Quantum Annihilation of Positrons
journal, May 1957

Theory of Photons and Electrons
journal, April 1957

The infrared divergence phenomena and high-energy processes
journal, June 1961

Radiative Corrections to Pair Annihilation
journal, March 1957