Universal Charge-Radius Relation for Subatomic and Astrophysical Compact Objects
| dc.creator | Madsen, Jes | |
| dc.date | 2008-04-14 | |
| dc.date.accessioned | 2026-07-07T11:44:47Z | |
| dc.date.available | 2026-07-07T11:44:47Z | |
| dc.description | Electron-positron pair creation in supercritical electric fields limits the net charge of any static, spherical object, such as superheavy nuclei, strangelets, and Q-balls, or compact stars like neutron stars, quark stars, and black holes. For radii between $4\times10^2$ fm and $10^4$ fm the upper bound on the net charge is given by the universal relation $Z=0.71R_{fm}$, and for larger radii (measured in fm or km) $Z = 7 \times 10^{-5} R_{fm}^2 = 7 \times 10^{31} R_{km}^2$. For objects with nuclear density the relation corresponds to $Z \approx 0.7 A^{1/3}$ ($10^{8} < A < 10^{12}$) and $Z \approx 7\times10^{-5} A^{2/3}$ ($A > 10^{12}$), where $A$ is the baryon number. For some systems this universal upper bound improves existing charge limits in the literature. | |
| dc.identifier | https://arxiv.org/abs/0804.2140 | |
| dc.identifier | http://arxiv.org/abs/0804.2140 | |
| dc.identifier | Phys.Rev.Lett.100:151102,2008 | |
| dc.identifier | doi:10.1103/PhysRevLett.100.151102 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/201675 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | Nuclear Theory | |
| dc.title | Universal Charge-Radius Relation for Subatomic and Astrophysical Compact Objects | |
| dc.type | text |