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Gravitational mass of positron from LEP synchrotron losses

General relativity(GR) is the current description of gravity in modern physics. One of the cornerstones of GR, as well as Newton’s theory of gravity, is the weak equivalence principle (WEP), stating that the trajectory of a freely falling test body is independent of its internal structure and compos...

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Autor principal: Kalaydzhyan, Tigran
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4962037/
https://www.ncbi.nlm.nih.gov/pubmed/27461548
http://dx.doi.org/10.1038/srep30461
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author Kalaydzhyan, Tigran
author_facet Kalaydzhyan, Tigran
author_sort Kalaydzhyan, Tigran
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description General relativity(GR) is the current description of gravity in modern physics. One of the cornerstones of GR, as well as Newton’s theory of gravity, is the weak equivalence principle (WEP), stating that the trajectory of a freely falling test body is independent of its internal structure and composition. WEP is known to be valid for the normal matter with a high precision. However, due to the rarity of antimatter and weakness of the gravitational forces, the WEP has never been confirmed for antimatter. The current direct bounds on the ratio between the gravitational and inertial masses of the antihydrogen do not rule out a repulsive nature for the antimatter gravity. Here we establish an indirect bound of 0.13% on the difference between the gravitational and inertial masses of the positron (antielectron) from the analysis of synchrotron losses at the Large Electron-Positron collider (LEP). This serves as a confirmation of the conventional gravitational properties of antimatter without common assumptions such as, e.g., coupling of gravity to virtual particles, dynamics of distant astrophysical sources and the nature of absolute gravitational potentials.
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spelling pubmed-49620372016-08-08 Gravitational mass of positron from LEP synchrotron losses Kalaydzhyan, Tigran Sci Rep Article General relativity(GR) is the current description of gravity in modern physics. One of the cornerstones of GR, as well as Newton’s theory of gravity, is the weak equivalence principle (WEP), stating that the trajectory of a freely falling test body is independent of its internal structure and composition. WEP is known to be valid for the normal matter with a high precision. However, due to the rarity of antimatter and weakness of the gravitational forces, the WEP has never been confirmed for antimatter. The current direct bounds on the ratio between the gravitational and inertial masses of the antihydrogen do not rule out a repulsive nature for the antimatter gravity. Here we establish an indirect bound of 0.13% on the difference between the gravitational and inertial masses of the positron (antielectron) from the analysis of synchrotron losses at the Large Electron-Positron collider (LEP). This serves as a confirmation of the conventional gravitational properties of antimatter without common assumptions such as, e.g., coupling of gravity to virtual particles, dynamics of distant astrophysical sources and the nature of absolute gravitational potentials. Nature Publishing Group 2016-07-27 /pmc/articles/PMC4962037/ /pubmed/27461548 http://dx.doi.org/10.1038/srep30461 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Kalaydzhyan, Tigran
Gravitational mass of positron from LEP synchrotron losses
title Gravitational mass of positron from LEP synchrotron losses
title_full Gravitational mass of positron from LEP synchrotron losses
title_fullStr Gravitational mass of positron from LEP synchrotron losses
title_full_unstemmed Gravitational mass of positron from LEP synchrotron losses
title_short Gravitational mass of positron from LEP synchrotron losses
title_sort gravitational mass of positron from lep synchrotron losses
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4962037/
https://www.ncbi.nlm.nih.gov/pubmed/27461548
http://dx.doi.org/10.1038/srep30461
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