(nuclear physics) A hypothetical bound state of two neutrons, which probably does not exist. A combination of two neutrons which has a transitory existence in certain nuclear reactions.
Dineutron
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(dī′nü′trän)
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A dineutron is a hypothetical particle consisting of two neutrons that was suggested to have a transitory existence in nuclear reactions produced by helions that result in the formation of a proton and a nucleus having the same atomic number as the target nucleus but a mass number two units greater.[1]
A system made up of only two neutrons is not bound, though the attraction between them is very nearly enough to make them so.[2] This has some consequences on nucleosynthesis and the abundance of the chemical elements.[3]
References
- ^ Hagino, K.; Sagawa, H.; Nakamura, T.; Shimoura, S. (2009). "Two-particle correlations in continuum dipole transitions in Borromean nuclei". arΧiv: 0904.4775 [nucl-th].
- ^ MacDonald, J.; Mullan, D.J. (2009). "Big Bang Nucleosynthesis: The Strong Nuclear Force meets the Weak Anthropic Principle". arΧiv: 0904.1807 [astro-ph.CO].
- ^ Kneller, J.P.; McLaughlin, G.C. (2004). "The Effect of Bound Dineutrons upon BBN". Physical Review D 70: 043512. doi:. arΧiv:astro-ph/0312388.
- Bertulani, C.A.; Canto, L.F.; Hussein, M.S. (1993). "The Structure And Reactions Of Neutron-Rich Nuclei". Physics Reports 226 (6): 281–376. doi:. http://www.tamu-commerce.edu/physics/carlos/papers/PRep226_1993_281.pdf.
See also
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 | Diproton |
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