| 释义 |
pomeron Nuclear Physics.|ˈpɒmərɒn|
Also Pomeron.
[f. Pomeranchuk + -on1.]
The Pomeranchuk pole or trajectory, or a virtual particle regarded as exchanged in the type of scattering they represent.
1967R. J. Eden High Energy Collisions ix. 234 If total cross-sections are asymptotically constant, there must be a Regge pole of even signature..having, l = α1 +(0) = 1... The corresponding trajectory is called the Pomeranchuk trajectory. The object exchanged at t = 0 is called the ‘Pomeron’. It is not a physical particle. 1971Physics Bull. Sept. 517/2 With a linear trajectory this required that the pomeron has a slope of 0·64 GeV-2. Several factors however have led to the abandoning of the association of the pomeron with the f0. 1973B. H. Bransden et al. Fund. Particles ix. 181 At present it does not seem that the Pomeron corresponds to a physical particle and it probably should be thought of as a device to bring diffraction scattering into the same exchange framework as other reactions. 1974M. L. Perl High Energy Hadron Physics xvii. 408 It also became common to speak of the Pomeranchuk trajectory as representing the exchange of a virtual particle called the pomeron. |