Threshold resummation for the inclusive-hadron cross section in pp collisions
- Departamento de Fisica, FCEYN, Universidad de Buenos Aires (1428) Pabellon 1 Ciudad Universitaria, Capital Federal (Argentina)
- Physics Department and RIKEN-BNL Research Center, 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. These corrections arise near the threshold for the partonic reaction and are associated with soft-gluon emission. We perform the resummation to next-to-leading logarithmic accuracy. We present numerical results for the fixed-target regime and find enhancements over the next-to-leading order cross section, which significantly improve the agreement between theoretical predictions and data. We also apply the resummation for Relativistic Heavy-Ion Collider kinematics and find that subleading terms appear to play a rather important role here.
- OSTI ID:
- 20709449
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 71; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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