Single-inclusive hadron production in polarized pp scattering at next-to-leading logarithmic accuracy
- Departamento de Fisica, FCEYN, Universidad de Buenos Aires (1428) Pabellon 1 Ciudad Universitaria, Capital Federal (Argentina)
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp{yields}hX at high transverse momentum of the hadron h, when the initial protons are longitudinally polarized. We perform the resummation to next-to-leading logarithmic accuracy. We present numerical results for center-of-mass energies {radical}(S)=19.4 GeV, relevant for comparisons to data from the Fermilab E704 experiment, and {radical}(S)=62.4 GeV, where preliminary data from RHIC have recently become available. We find significant enhancements of the spin-dependent cross sections, but a decrease of the double-spin asymmetry for the process. This effect is less pronounced at the higher energy.
- OSTI ID:
- 21032571
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Threshold resummation for the inclusive-hadron cross section in pp collisions
Threshold resummation for W-boson production at BNL RHIC