Photon - proton and photon-photon scattering from nucleon-nucleon forward amplitudes

Aug, 1998
38 pages
Published in:
  • Phys.Rev.D 60 (1999) 054024
e-Print:
Report number:
  • MADPH-98-1041,
  • NUHEP-501

Citations per year

19982005201220192024024681012
Abstract:
We show that the data on γp\gamma p and γγ\gamma\gamma interactions can be derived from the pppp and pˉp\bar p p forward scattering amplitudes using vector meson dominance and the additive quark model. The nucleon-nucleon data are parameterized using a model where high energy cross sections rise with energy as a consequence of the increasing numbers of soft partons populating the colliding particles. We present detailed descriptions of the data on the total and elastic cross sections, the ratio of the real to imaginary part of the forward scattering amplitude, and on the slope of the differential cross sections for pppp, pˉp\bar p p, γp\gamma p, γγ\gamma\gamma, γpγV\gamma p \to \gamma V and γγViVj\gamma\gamma \to V_i V_j reactions, where V=ρ,ω,ϕV= \rho, \omega, \phi. We make a wide range of predictions for future HERA and LHC experiments and for γγ\gamma\gamma measurements at LEP.
Note:
  • 37 pages, Latex2.09, uses epsfig.sty, 27 postscript figures Report-no: MADPH-98-1041, NUHEP 501
  • photon p: interaction
  • photon photon: interaction
  • p p: elastic scattering
  • anti-p p: elastic scattering
  • cross section: energy dependence
  • scattering amplitude: forward scattering
  • vector dominance
  • quark
  • differential cross section: slope
  • differential cross section: momentum transfer