Phys. Rev. D 61, 094004 (2000) [12 pages]Soft-gluon resummation and NNLO corrections for direct photon productionReceived 17 December 1999; published 31 March 2000 The resummation of threshold logarithms for direct photon production cross sections in hadronic collisions is presented. The resummation is based on the factorization properties of the cross section and is formulated at next-to-leading logarithmic or higher accuracy. Full analytical and numerical results for the next-to-next-to-leading order expansion of the resummed cross section are given. A substantial reduction of factorization scale dependence is observed. A comparison to experimental results from the E-706 and UA-6 experiments is presented. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.61.094004
DOI:
10.1103/PhysRevD.61.094004
PACS:
13.85.Qk, 12.38.Bx, 12.38.Cy
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.