@article{811d3722c7b943b69d48f1cf9e9632e5,
title = "Evidence for parton kT effects in high- pT particle production",
abstract = "Inclusive π0 and direct-photon cross sections in the kinematic range 3.5 < pT < 12GeV/c with central rapidities (ycm) are presented for 530 and 800 GeV/c proton beams and a 515 GeV/c π− beam incident on Be targets. Current next-to-leading-order perturbative QCD calculations fail to adequately describe the data for conventional choices of scales. Kinematic distributions from these hard scattering events provide evidence that the interacting partons carry significant initial-state parton transverse momentum (kT). Incorporating these kT effects phenomenologically greatly improves the agreement between calculations and the measured cross sections.",
author = "{Fermilab E706 Collaboration} and L. Apanasevich and J. Bacigalupi and W. Baker and M. Begel and S. Blusk and C. Bromberg and P. Chang and B. Choudhary and Chung, {W. H.} and {De Barbaro}, L. and W. DeSoi and W. D{\l}ugosz and J. Dunlea and E. Engels and G. Fanourakis and T. Ferbel and J. Ftacnik and D. Garelick and G. Ginther and M. Glaubman and P. Gutierrez and K. Hartman and J. Huston and C. Johnstone and V. Kapoor and J. Kuehler and C. Lirakis and F. Lobkowicz and P. Lukens and S. Mani and J. Mansour and A. Maul and R. Miller and Oh, {B. Y.} and G. Osborne and D. Pellett and E. Prebys and R. Roser and P. Shepard and R. Shivpuri and D. Skow and P. Slattery and L. Sorrell and D. Striley and W. Toothacker and N. Varelas and D. Weerasundara and Whitmore, {J. J.} and T. Yasuda and C. Yosef",
year = "1998",
doi = "10.1103/PhysRevLett.81.2642",
language = "English (US)",
volume = "81",
pages = "2642--2645",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",
}