What about the contribution from reggeons in hard process of strong interactions?

Details What about the contribution from reggeons in hard process of strong interactions? What about the contribution from reggeons in hard process of strong interactions?

1997-01-11

arxiv.org/abs/hep-ph/9701268v1

Commun.Theor.Phys. 28 (1997) 339-346

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 page, LaTex, 4 figure in postscript. To appear in Commu. in Theor. Phys

Scientific paper

We discuss in this paper the possible contributions from R_\rho(\rho-reggeon associated with \rho meson) in DIS process on protons. Using results from phenomenological analysis of high energy \pi-N charge-exchanged scattering process, we get the expression of effective propagator of R_\rho and the coupling constant \beta_\rho between R_\rho and light quarks. As a simple and concrete example, we use them to evaluate the contributions of R_\rho to F_2(x,Q^2) from charge-exchanged photoproduction quark-pair process,\gamma^* + p-->n + q_u + \bar{q}_d (--> n + X), in HERA kinematical regions. For a comparison, we also evaluate contributions both from pomeron and partons in the same process. The ratio of contributions in F_2(x,Q^2) from R_\rho versus IP is larger than 1%, therefore, the former may be tested experimentaly.

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