Positron (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Positron" in English language version.

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19doi.org

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aanda.org

Boudaud (19 December 2014). "A new look at the cosmic ray positron fraction". Astronomy & Astrophysics. 575. Retrieved 19 October 2021.

aip.org

"Atop the Physics Wave: Rutherford Back in Cambridge, 1919–1937". Rutherford's Nuclear World. American Institute of Physics. 2011–2014. Archived from the original on 21 October 2014. Retrieved 19 August 2014.

ams02.space

"Towards Understanding the Origin of Cosmic-Ray Positrons". The Alpha Magnetic Spectrometer on the International Space Station. Retrieved 19 October 2021.

arxiv.org

Adriani, O.; et al. (2011). "The Discovery of Geomagnetically Trapped Cosmic-Ray Antiprotons". The Astrophysical Journal Letters. 737 (2): L29. arXiv:1107.4882. Bibcode:2011ApJ...737L..29A. doi:10.1088/2041-8205/737/2/L29.
Schirber, M. (2014). "Synopsis: More Dark Matter Hints from Cosmic Rays?". Physical Review Letters. 113 (12): 121102. arXiv:1701.07305. Bibcode:2014PhRvL.113l1102A. doi:10.1103/PhysRevLett.113.121102. hdl:1721.1/90426. PMID 25279617. S2CID 2585508.
A bot will complete this citation soon. Click here to jump the queue arXiv:2312.05244.

bbc.co.uk

Palmer, J. (11 January 2011). "Antimatter caught streaming from thunderstorms on Earth". BBC News. Archived from the original on 12 January 2011. Retrieved 11 January 2011.

books.google.com

Merhra, J.; Rechenberg, H. (2000). The Historical Development of Quantum Theory, Volume 6: The Completion of Quantum Mechanics 1926–1941. Springer. p. 804. ISBN 978-0-387-95175-1.
Wintergham, F. P. W. (1989). Radioactive Fallout in Soils, Crops and Food. Food and Agriculture Organization. p. 32. ISBN 978-92-5-102877-3.

brandeis.edu

pc.astro.brandeis.edu

"Electron-positron Jets Associated with Quasar 3C 279" (PDF).

caltech.edu

authors.library.caltech.edu

Feynman, R. (1949). "The theory of positrons". Physical Review. 76 (6): 749–759. Bibcode:1949PhRv...76..749F. doi:10.1103/PhysRev.76.749. S2CID 120117564. Archived from the original on 9 August 2022. Retrieved 28 December 2021.

calteches.library.caltech.edu

Cowan, E. (1982). "The Picture That Was Not Reversed". Engineering & Science. 46 (2): 6–28.

cern.ch

cds.cern.ch

Schirber, M. (2014). "Synopsis: More Dark Matter Hints from Cosmic Rays?". Physical Review Letters. 113 (12): 121102. arXiv:1701.07305. Bibcode:2014PhRvL.113l1102A. doi:10.1103/PhysRevLett.113.121102. hdl:1721.1/90426. PMID 25279617. S2CID 2585508.

hiradmat.web.cern.ch

"The HiRadMat Facility at SPS". 8 December 2023.

citations.toolforge.org

A bot will complete this citation soon. Click here to jump the queue arXiv:2312.05244.

doi.org

Dirac, P. A. M. (1928). "The quantum theory of the electron". Proceedings of the Royal Society A. 117 (778): 610–624. Bibcode:1928RSPSA.117..610D. doi:10.1098/rspa.1928.0023.
Weyl, H. (1929). "Gravitation and the Electron". PNAS. 15 (4): 323–334. Bibcode:1929PNAS...15..323W. doi:10.1073/pnas.15.4.323. PMC 522457. PMID 16587474.
Dirac, P. A. M. (1930). "A theory of electrons and protons". Proceedings of the Royal Society A. 126 (801): 360–365. Bibcode:1930RSPSA.126..360D. doi:10.1098/rspa.1930.0013.
Dirac, P. A. M. (1931). "Quantised Singularities in the Quantum Field". Proceedings of the Royal Society A. 133 (821): 60–72. Bibcode:1931RSPSA.133...60D. doi:10.1098/rspa.1931.0130.
Feynman, R. (1949). "The theory of positrons". Physical Review. 76 (6): 749–759. Bibcode:1949PhRv...76..749F. doi:10.1103/PhysRev.76.749. S2CID 120117564. Archived from the original on 9 August 2022. Retrieved 28 December 2021.
Nambu, Y. (1950). "The Use of the Proper Time in Quantum Electrodynamics I". Progress of Theoretical Physics. 5 (1): 82–94. Bibcode:1950PThPh...5...82N. doi:10.1143/PTP/5.1.82.
Bazilevskaya, G.A. (2014). "Skobeltsyn and the early years of cosmic particle physics in the Soviet Union". Astroparticle Physics. 53: 61–66. Bibcode:2014APh....53...61B. doi:10.1016/j.astropartphys.2013.05.007.
Skobeltsyn, D. (1929). "Uber eine neue Art sehr schneller beta-Strahlen". Z. Phys. 54 (9–10): 686–702. Bibcode:1929ZPhy...54..686S. doi:10.1007/BF01341600. S2CID 121748135.
Skobeltzyn, D. (1934). "Positive electron tracks". Nature. 133 (3349): 23–24. Bibcode:1934Natur.133...23S. doi:10.1038/133023a0. S2CID 4226799.
Cao, Cong (2004). "Chinese Science and the 'Nobel Prize Complex'" (PDF). Minerva. 42 (2): 154. doi:10.1023/b:mine.0000030020.28625.7e. ISSN 0026-4695. S2CID 144522961.
Anderson, C. D. (1933). "The Positive Electron". Physical Review. 43 (6): 491–494. Bibcode:1933PhRv...43..491A. doi:10.1103/PhysRev.43.491.
Adriani, O.; et al. (2011). "The Discovery of Geomagnetically Trapped Cosmic-Ray Antiprotons". The Astrophysical Journal Letters. 737 (2): L29. arXiv:1107.4882. Bibcode:2011ApJ...737L..29A. doi:10.1088/2041-8205/737/2/L29.
Engelkemeir, D. W.; Flynn, K. F.; Glendenin, L. E. (1962). "Positron Emission in the Decay of K⁴⁰". Physical Review. 126 (5): 1818. Bibcode:1962PhRv..126.1818E. doi:10.1103/PhysRev.126.1818.
Golden (February 1996). "Measurement of the Positron to Electron Ratio in Cosmic Rays above 5 GeV". Astrophysical Journal Letters. 457 (2). Bibcode:1996ApJ...457L.103G. doi:10.1086/309896. hdl:11576/2514376. S2CID 122660096. Retrieved 19 October 2021.
Accardo, L.; et al. (AMS Collaboration) (2014). "High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–500 GeV with the Alpha Magnetic Spectrometer on the International Space Station" (PDF). Physical Review Letters. 113 (12): 121101. Bibcode:2014PhRvL.113l1101A. doi:10.1103/PhysRevLett.113.121101. PMID 25279616.
Schirber, M. (2014). "Synopsis: More Dark Matter Hints from Cosmic Rays?". Physical Review Letters. 113 (12): 121102. arXiv:1701.07305. Bibcode:2014PhRvL.113l1102A. doi:10.1103/PhysRevLett.113.121102. hdl:1721.1/90426. PMID 25279617. S2CID 2585508.
Aguilar, M.; et al. (2013). "First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV" (PDF). Physical Review Letters. 110 (14): 141102. Bibcode:2013PhRvL.110n1102A. doi:10.1103/PhysRevLett.110.141102. PMID 25166975.
Aguilar, M.; et al. (AMS Collaboration) (2002). "The Alpha Magnetic Spectrometer (AMS) on the International Space Station: Part I – results from the test flight on the space shuttle". Physics Reports. 366 (6): 331–405. Bibcode:2002PhR...366..331A. doi:10.1016/S0370-1573(02)00013-3. hdl:2078.1/72661. S2CID 122726107.
Charman, A. E. (30 April 2013). "Description and first application of a new technique to measure the gravitational mass of antihydrogen". Nature Communications. 4 (1): 1785–. Bibcode:2013NatCo...4.1785A. doi:10.1038/ncomms2787. ISSN 2041-1723. PMC 3644108. PMID 23653197.

fsu.edu

chem.fsu.edu

Gilmer, P. J. (19 July 2011). "Irène Jolit-Curie, a Nobel laureate in artificial radioactivity" (PDF). p. 8. Archived from the original (PDF) on 19 May 2014. Retrieved 13 July 2013.

handle.net

hdl.handle.net

Golden (February 1996). "Measurement of the Positron to Electron Ratio in Cosmic Rays above 5 GeV". Astrophysical Journal Letters. 457 (2). Bibcode:1996ApJ...457L.103G. doi:10.1086/309896. hdl:11576/2514376. S2CID 122660096. Retrieved 19 October 2021.
Schirber, M. (2014). "Synopsis: More Dark Matter Hints from Cosmic Rays?". Physical Review Letters. 113 (12): 121102. arXiv:1701.07305. Bibcode:2014PhRvL.113l1102A. doi:10.1103/PhysRevLett.113.121102. hdl:1721.1/90426. PMID 25279617. S2CID 2585508.
Aguilar, M.; et al. (AMS Collaboration) (2002). "The Alpha Magnetic Spectrometer (AMS) on the International Space Station: Part I – results from the test flight on the space shuttle". Physics Reports. 366 (6): 331–405. Bibcode:2002PhR...366..331A. doi:10.1016/S0370-1573(02)00013-3. hdl:2078.1/72661. S2CID 122726107.

harvard.edu

ui.adsabs.harvard.edu

Dirac, P. A. M. (1928). "The quantum theory of the electron". Proceedings of the Royal Society A. 117 (778): 610–624. Bibcode:1928RSPSA.117..610D. doi:10.1098/rspa.1928.0023.
Weyl, H. (1929). "Gravitation and the Electron". PNAS. 15 (4): 323–334. Bibcode:1929PNAS...15..323W. doi:10.1073/pnas.15.4.323. PMC 522457. PMID 16587474.
Dirac, P. A. M. (1930). "A theory of electrons and protons". Proceedings of the Royal Society A. 126 (801): 360–365. Bibcode:1930RSPSA.126..360D. doi:10.1098/rspa.1930.0013.
Dirac, P. A. M. (1931). "Quantised Singularities in the Quantum Field". Proceedings of the Royal Society A. 133 (821): 60–72. Bibcode:1931RSPSA.133...60D. doi:10.1098/rspa.1931.0130.
Feynman, R. (1949). "The theory of positrons". Physical Review. 76 (6): 749–759. Bibcode:1949PhRv...76..749F. doi:10.1103/PhysRev.76.749. S2CID 120117564. Archived from the original on 9 August 2022. Retrieved 28 December 2021.
Nambu, Y. (1950). "The Use of the Proper Time in Quantum Electrodynamics I". Progress of Theoretical Physics. 5 (1): 82–94. Bibcode:1950PThPh...5...82N. doi:10.1143/PTP/5.1.82.
Bazilevskaya, G.A. (2014). "Skobeltsyn and the early years of cosmic particle physics in the Soviet Union". Astroparticle Physics. 53: 61–66. Bibcode:2014APh....53...61B. doi:10.1016/j.astropartphys.2013.05.007.
Skobeltsyn, D. (1929). "Uber eine neue Art sehr schneller beta-Strahlen". Z. Phys. 54 (9–10): 686–702. Bibcode:1929ZPhy...54..686S. doi:10.1007/BF01341600. S2CID 121748135.
Skobeltzyn, D. (1934). "Positive electron tracks". Nature. 133 (3349): 23–24. Bibcode:1934Natur.133...23S. doi:10.1038/133023a0. S2CID 4226799.
Anderson, C. D. (1933). "The Positive Electron". Physical Review. 43 (6): 491–494. Bibcode:1933PhRv...43..491A. doi:10.1103/PhysRev.43.491.
Adriani, O.; et al. (2011). "The Discovery of Geomagnetically Trapped Cosmic-Ray Antiprotons". The Astrophysical Journal Letters. 737 (2): L29. arXiv:1107.4882. Bibcode:2011ApJ...737L..29A. doi:10.1088/2041-8205/737/2/L29.
Engelkemeir, D. W.; Flynn, K. F.; Glendenin, L. E. (1962). "Positron Emission in the Decay of K⁴⁰". Physical Review. 126 (5): 1818. Bibcode:1962PhRv..126.1818E. doi:10.1103/PhysRev.126.1818.
Golden (February 1996). "Measurement of the Positron to Electron Ratio in Cosmic Rays above 5 GeV". Astrophysical Journal Letters. 457 (2). Bibcode:1996ApJ...457L.103G. doi:10.1086/309896. hdl:11576/2514376. S2CID 122660096. Retrieved 19 October 2021.
Accardo, L.; et al. (AMS Collaboration) (2014). "High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–500 GeV with the Alpha Magnetic Spectrometer on the International Space Station" (PDF). Physical Review Letters. 113 (12): 121101. Bibcode:2014PhRvL.113l1101A. doi:10.1103/PhysRevLett.113.121101. PMID 25279616.
Schirber, M. (2014). "Synopsis: More Dark Matter Hints from Cosmic Rays?". Physical Review Letters. 113 (12): 121102. arXiv:1701.07305. Bibcode:2014PhRvL.113l1102A. doi:10.1103/PhysRevLett.113.121102. hdl:1721.1/90426. PMID 25279617. S2CID 2585508.
Aguilar, M.; et al. (2013). "First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV" (PDF). Physical Review Letters. 110 (14): 141102. Bibcode:2013PhRvL.110n1102A. doi:10.1103/PhysRevLett.110.141102. PMID 25166975.
Aguilar, M.; et al. (AMS Collaboration) (2002). "The Alpha Magnetic Spectrometer (AMS) on the International Space Station: Part I – results from the test flight on the space shuttle". Physics Reports. 366 (6): 331–405. Bibcode:2002PhR...366..331A. doi:10.1016/S0370-1573(02)00013-3. hdl:2078.1/72661. S2CID 122726107.
Charman, A. E. (30 April 2013). "Description and first application of a new technique to measure the gravitational mass of antihydrogen". Nature Communications. 4 (1): 1785–. Bibcode:2013NatCo...4.1785A. doi:10.1038/ncomms2787. ISSN 2041-1723. PMC 3644108. PMID 23653197.

fas.harvard.edu

"Radiation and Radioactive Decay. Radioactive Human Body". Harvard Natural Sciences Lecture Demonstrations. Retrieved 18 May 2011.

llnl.gov

lasers.llnl.gov

https://lasers.llnl.gov/workshops/user_group_2012/docs/7.3_chen.pdf Lab production of 5MeV positron-electron beams

nasa.gov

ams.nasa.gov

Accardo, L.; et al. (AMS Collaboration) (2014). "High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–500 GeV with the Alpha Magnetic Spectrometer on the International Space Station" (PDF). Physical Review Letters. 113 (12): 121101. Bibcode:2014PhRvL.113l1101A. doi:10.1103/PhysRevLett.113.121101. PMID 25279616.
"New results from the Alpha Magnetic Spectrometer on the International Space Station" (PDF). AMS-02 at NASA. Retrieved 21 September 2014.

science.nasa.gov

"What's the Matter with Antimatter?". NASA. 29 May 2000. Archived from the original on 4 June 2008. Retrieved 24 May 2008.

nasa.gov

"Vast Cloud of Antimatter Traced to Binary Stars". NASA.

nationalgeographic.com

news.nationalgeographic.com

Than, K. (10 August 2011). "Antimatter Found Orbiting Earth—A First". National Geographic Society. Archived from the original on 10 October 2011. Retrieved 12 August 2011.

nbcnews.com

Bland, E. (1 December 2008). "Laser technique produces bevy of antimatter". NBC News. Retrieved 6 April 2016. The LLNL scientists created the positrons by shooting the lab's high-powered Titan laser onto a one-millimeter-thick piece of gold.

nih.gov

pubmed.ncbi.nlm.nih.gov

Weyl, H. (1929). "Gravitation and the Electron". PNAS. 15 (4): 323–334. Bibcode:1929PNAS...15..323W. doi:10.1073/pnas.15.4.323. PMC 522457. PMID 16587474.
Accardo, L.; et al. (AMS Collaboration) (2014). "High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–500 GeV with the Alpha Magnetic Spectrometer on the International Space Station" (PDF). Physical Review Letters. 113 (12): 121101. Bibcode:2014PhRvL.113l1101A. doi:10.1103/PhysRevLett.113.121101. PMID 25279616.
Schirber, M. (2014). "Synopsis: More Dark Matter Hints from Cosmic Rays?". Physical Review Letters. 113 (12): 121102. arXiv:1701.07305. Bibcode:2014PhRvL.113l1102A. doi:10.1103/PhysRevLett.113.121102. hdl:1721.1/90426. PMID 25279617. S2CID 2585508.
Aguilar, M.; et al. (2013). "First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV" (PDF). Physical Review Letters. 110 (14): 141102. Bibcode:2013PhRvL.110n1102A. doi:10.1103/PhysRevLett.110.141102. PMID 25166975.
Charman, A. E. (30 April 2013). "Description and first application of a new technique to measure the gravitational mass of antihydrogen". Nature Communications. 4 (1): 1785–. Bibcode:2013NatCo...4.1785A. doi:10.1038/ncomms2787. ISSN 2041-1723. PMC 3644108. PMID 23653197.

ncbi.nlm.nih.gov

Weyl, H. (1929). "Gravitation and the Electron". PNAS. 15 (4): 323–334. Bibcode:1929PNAS...15..323W. doi:10.1073/pnas.15.4.323. PMC 522457. PMID 16587474.
Charman, A. E. (30 April 2013). "Description and first application of a new technique to measure the gravitational mass of antihydrogen". Nature Communications. 4 (1): 1785–. Bibcode:2013NatCo...4.1785A. doi:10.1038/ncomms2787. ISSN 2041-1723. PMC 3644108. PMID 23653197.

nist.gov

physics.nist.gov

"2022 CODATA Value: electron mass". The NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 18 May 2024.
"2022 CODATA Value: electron mass in u". The NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 18 May 2024.
"2022 CODATA Value: electron mass energy equivalent in MeV". The NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 18 May 2024.
"2022 CODATA Value: elementary charge". The NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 18 May 2024.

nobelprize.org

Feynman, R. (11 December 1965). The Development of the Space-Time View of Quantum Electrodynamics (Speech). Nobel Lecture. Retrieved 2 January 2007.
Anderson, Carl D. (1936). "The Production and Properties of Positrons". Retrieved 10 August 2020.
"The Nobel Prize in Physics 1936". Retrieved 21 January 2010.

rwth-aachen.de

www1b.physik.rwth-aachen.de

"Positron fraction". Archived from the original on 22 July 2018. Retrieved 22 July 2018.

semanticscholar.org

api.semanticscholar.org

Feynman, R. (1949). "The theory of positrons". Physical Review. 76 (6): 749–759. Bibcode:1949PhRv...76..749F. doi:10.1103/PhysRev.76.749. S2CID 120117564. Archived from the original on 9 August 2022. Retrieved 28 December 2021.
Skobeltsyn, D. (1929). "Uber eine neue Art sehr schneller beta-Strahlen". Z. Phys. 54 (9–10): 686–702. Bibcode:1929ZPhy...54..686S. doi:10.1007/BF01341600. S2CID 121748135.
Skobeltzyn, D. (1934). "Positive electron tracks". Nature. 133 (3349): 23–24. Bibcode:1934Natur.133...23S. doi:10.1038/133023a0. S2CID 4226799.
Cao, Cong (2004). "Chinese Science and the 'Nobel Prize Complex'" (PDF). Minerva. 42 (2): 154. doi:10.1023/b:mine.0000030020.28625.7e. ISSN 0026-4695. S2CID 144522961.
Golden (February 1996). "Measurement of the Positron to Electron Ratio in Cosmic Rays above 5 GeV". Astrophysical Journal Letters. 457 (2). Bibcode:1996ApJ...457L.103G. doi:10.1086/309896. hdl:11576/2514376. S2CID 122660096. Retrieved 19 October 2021.
Schirber, M. (2014). "Synopsis: More Dark Matter Hints from Cosmic Rays?". Physical Review Letters. 113 (12): 121102. arXiv:1701.07305. Bibcode:2014PhRvL.113l1102A. doi:10.1103/PhysRevLett.113.121102. hdl:1721.1/90426. PMID 25279617. S2CID 2585508.
Aguilar, M.; et al. (AMS Collaboration) (2002). "The Alpha Magnetic Spectrometer (AMS) on the International Space Station: Part I – results from the test flight on the space shuttle". Physics Reports. 366 (6): 331–405. Bibcode:2002PhR...366..331A. doi:10.1016/S0370-1573(02)00013-3. hdl:2078.1/72661. S2CID 122726107.

stolaf.edu

"Introduction to Positron Research". St. Olaf College. Archived from the original on 5 August 2010.

uni-mainz.de

"Riddle of matter remains unsolved: Proton and antiproton share fundamental properties". Johannes Gutenberg University Mainz. 19 October 2017.

unimib.it

boa.unimib.it

Aguilar, M.; et al. (2013). "First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV" (PDF). Physical Review Letters. 110 (14): 141102. Bibcode:2013PhRvL.110n1102A. doi:10.1103/PhysRevLett.110.141102. PMID 25166975.

uoregon.edu

china-us.uoregon.edu

Cao, Cong (2004). "Chinese Science and the 'Nobel Prize Complex'" (PDF). Minerva. 42 (2): 154. doi:10.1023/b:mine.0000030020.28625.7e. ISSN 0026-4695. S2CID 144522961.

web.archive.org

Feynman, R. (1949). "The theory of positrons". Physical Review. 76 (6): 749–759. Bibcode:1949PhRv...76..749F. doi:10.1103/PhysRev.76.749. S2CID 120117564. Archived from the original on 9 August 2022. Retrieved 28 December 2021.
Gilmer, P. J. (19 July 2011). "Irène Jolit-Curie, a Nobel laureate in artificial radioactivity" (PDF). p. 8. Archived from the original (PDF) on 19 May 2014. Retrieved 13 July 2013.
"Atop the Physics Wave: Rutherford Back in Cambridge, 1919–1937". Rutherford's Nuclear World. American Institute of Physics. 2011–2014. Archived from the original on 21 October 2014. Retrieved 19 August 2014.
Palmer, J. (11 January 2011). "Antimatter caught streaming from thunderstorms on Earth". BBC News. Archived from the original on 12 January 2011. Retrieved 11 January 2011.
Than, K. (10 August 2011). "Antimatter Found Orbiting Earth—A First". National Geographic Society. Archived from the original on 10 October 2011. Retrieved 12 August 2011.
"What's the Matter with Antimatter?". NASA. 29 May 2000. Archived from the original on 4 June 2008. Retrieved 24 May 2008.
"Positron fraction". Archived from the original on 22 July 2018. Retrieved 22 July 2018.
"Introduction to Positron Research". St. Olaf College. Archived from the original on 5 August 2010.

worldcat.org

Cao, Cong (2004). "Chinese Science and the 'Nobel Prize Complex'" (PDF). Minerva. 42 (2): 154. doi:10.1023/b:mine.0000030020.28625.7e. ISSN 0026-4695. S2CID 144522961.
Charman, A. E. (30 April 2013). "Description and first application of a new technique to measure the gravitational mass of antihydrogen". Nature Communications. 4 (1): 1785–. Bibcode:2013NatCo...4.1785A. doi:10.1038/ncomms2787. ISSN 2041-1723. PMC 3644108. PMID 23653197.

youtube.com

https://www.youtube.com/watch?v=Sw-og52UUVg start FOUR minutes into video: Sagittarius produces 15 billion tons/sec of electron-positron matter