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DC Field | Value | Language |
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dc.contributor.author | Sivaram, C | - |
dc.contributor.author | Krishan, V | - |
dc.date.accessioned | 2004-12-01T07:00:39Z | - |
dc.date.available | 2004-12-01T07:00:39Z | - |
dc.date.issued | 1982-09 | - |
dc.identifier.citation | Nature, Vol. 299, No. 5882, pp. 427 | en |
dc.identifier.uri | http://hdl.handle.net/2248/78 | - |
dc.description | Restricted Access | - |
dc.description.abstract | The recent detection1,2 of an antiproton/proton (/p) ratio at energies much less than 1 GeV is several orders of magnitude above that predicted for production from primary cosmic ray collisions. It is well recognized that there is no mechanism to explain this sub-GeV (130−320 MeV) excess although many suggestions have been made. For example, Eichler3 considers secondary production in high-energy collisions while Kiraly4 et al. suggest black hole evaporation as a source. Most of these suggestions have inherent difficulties such as the imposition of severe constraints on the sources to suppress excessive bold italic gamma-ray production. We postulate here that the phenomenon of neutron− antineutron (nbold n macr) oscillations as a signature of grand unified theories may operate in neutron-rich astrophysical sources such as supernovae to produce the required low-energy galactic antiproton background. | en |
dc.format.extent | 362993 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | Nature Publishing Group | en |
dc.relation.uri | http://www.nature.com/nature/journal/v299/n5882/abs/299427a0.html | - |
dc.subject | Neutron Oscillation | en |
dc.subject | Cosmic Ray Collisions | en |
dc.subject | Galactic Cosmic Rays | en |
dc.title | Neutron oscillation as a source of excess sub-GeV antiprotons in galactic cosmic rays | en |
dc.type | Article | en |
Appears in Collections: | IIAP Publications |
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Neutron oscillation as a source of excess Restricted Access | Restricted Access | 128.85 kB | Adobe PDF | View/Open Request a copy |
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