Towards the semiclassical calculability of high-energy instanton cross-sections
Dec, 19914 pages
Published in:
- Phys.Lett.B 279 (1992) 165-168
- Published: 1992
Report number:
- TPI-MINN-91-53-T
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Abstract: (Elsevier)
We argue that the baryon number violating cross sections of two-particle collisions at high energies can be evaluated by studying the rate of instanton-like transitions for multiparticle “semiclassical” states. In the limit g 2 →0, where g is the coupling constant, this transition rate has a semiclassical form, σ ( E )∼exp[(1/ g 2 ) F ( E / E sph )], while by an appropriate choice of the initial state, σ ( E ) can be made close to the two-particle cross section at CM energy E . Therefore, the two-particle cross section is argued to have the same exponential form, with the function F ( E / E sph ) calculable by semiclassical methods.- baryon number: violation
- scattering: two-particle
- two-particle: scattering
- effect: instanton
- cross section: energy dependence
- approximation: semiclassical
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