Energy dependence of the pomeron spin flip
Feb, 1998
6 pages
Part of High energy physics. Proceedings, LAFEX International School, Session C, Workshop on Diffractive Physics, LISHEP'98, Rio de Janeiro, Brazil, February 16-20, 1998, 257-260, Proceedings of the 6th International Workshop on Deep Inelastic Scattering and QCD (DIS 98) : Brussels, Belgium, April 4-8, 1998, 257-260
Published in:
- Mod.Phys.Lett.A 13 (1998) 3033-3038
Contribution to:
- 6th International Workshop on Deep Inelastic Scattering and QCD (DIS 98), 257-260,
- LAFEX International School on High-Energy Physics (LISHEP 98) Session A: Particle Physics for High School Teachers - Session B: Advanced School in HEP - Session C: Workshop on Diffractive Physics, 257-260,
- 6th International Workshop on Deep Inelastic Scattering and QCD (DIS 98), 652-657
e-Print:
- hep-ph/9806284 [hep-ph]
Report number:
- MPIH-V19-1998
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Abstract:
There is no theoretical reason to think that the spin-flip component of the Pomeron is zero. One can measure the spin-flip part using Coulomb-nuclear interference (CNI). Perturbative QCD calculations show that the spin-flip component is sensitive to the smallest quark separation in the proton, while the non-flip part probes the largest separation. According to HERA results on the proton structure function at very low x the energy dependence of the cross-section correlates with the size of the color dipole. Analysing the data from HERA we predict that the ratio of the spin-flip to non-flip amplitude grows with energy as , violating Regge factorisation of the Pomeron.- talk: Brussels 1998/04/04
- talk: Rio de Janeiro 1998/02/16
- nucleon nucleon: elastic scattering
- exchange: pomeron
- Regge poles
- spin: scattering amplitude
- polarization
- interference
- p: wave function
- electron p: deep inelastic scattering
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