k{sub T} factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions

@inproceedings{Collins2007ksubTF,
  title={k\{sub T\} factorization is violated in production of high-transverse-momentum particles in hadron-hadron collisions},
  author={John Collins and Jian-wei Qiu},
  year={2007}
}
  • John Collins, Jian-wei Qiu
  • Published 2007
  • Physics
  • We show that hard-scattering factorization is violated in the production of high-p{sub T} hadrons in hadron-hadron collisions, in the case that the hadrons are back-to-back, so that k{sub T} factorization is to be used. The explicit counterexample that we construct is for the single-spin asymmetry with one beam transversely polarized. The Sivers function needed here has particular sensitivity to the Wilson lines in the parton densities. We use a greatly simplified model theory to make the… CONTINUE READING

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