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Probing dissociation of space-like photons in deep-inelastic lepton-nucleon scattering

C. Boros·Liang Zuo-tang·Meng Ta-chung
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Abstract

It is shown that the hadronic dissociation of space-like $(Q^2>0)$ photons can be directly probed by performing measurements in the fragmentation region of transversely polarized and unpolarized proton beams at the electron-proton collider HERA. Measurements of momentum-distributions in the photon-fragmentation region in normal and in LRG (large rapidity gap) events are also suggested --- especially when the scattered proton or neutron in the proton-beam direction is tagged. It is pointed out that such distributions can yield useful information on the mechanisms of hadronic fragmentation in general, and answer the following questions in particular: Is the well-known hypothesis of limiting fragmentation (HFL) valid in color-exchange, in flavor-exchange, or only in vacuum-quantum-number-exchange processes ?

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C. Boros, Liang Zuo-tang, Meng Ta-chung. 1996-03-06. Probing dissociation of space-like photons in deep-inelastic lepton-nucleon scattering. https://arxiv.org/abs/hep-ph/9603236

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