Regge and Parton Models for Photon-Photon Annihilation
نویسندگان
چکیده
منابع مشابه
Regge and Parton Models for Photon - Photon Annihilation ”
We discuss some of the questions which can be investigated in the two-photon part of e-+ e-e-+ e-+ hadrons when the electrons are scattered at finite momentum transfer. Discrimination of Regge and parton models for this process is possible in principle by studying the transverse helicity amplitudes. In some parton models the amplitudes are predicted exactly for limits where s = (ql + ~2)~ and 1...
متن کاملThe pair production spectrum from photon-photon annihilation
We present the first completely analytical computationof the full differentialγ-γ pair production rate fromcompact radiation fields, exact to 2nd order QED, and use this result to investigate the validity of previously known approximations.
متن کاملModels for Photon-photon Total Cross-Sections
We present here a brief overview of recent models describing the photon-photon cross-section into hadrons. We shall show in detail results from the eikonal minijet model, with and without soft gluon summation.
متن کاملPhoton Structure: Qcd Treatment and Parton Densities *
The hadronic structure of real photons [1], see also [2], is most easily illustrated by considering inclusive electron-photon deep-inelastic scattering (DIS). This process is completely analogous to the usual lepton-nucleon DIS. Consequently, the unpolarized cross section for eγ → eγγ → eX can be expressed in terms of two structure functions F γ 1,2(x,Q ), where x denotes the Bjorken scaling va...
متن کاملUnintegrated parton distributions and prompt photon hadroproduction
We introduce a general expression which enables the parton distribution, unintegrated over the parton transverse momentum, to be obtained from the conventional parton densities. We use the formalism to study the effects of the transverse momentum qt of the incoming partonic system on the calculation of the transverse momentum spectra of prompt photons produced in high energy pp and pp̄ collision...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 1973
ISSN: 0556-2821
DOI: 10.1103/physrevd.7.2152