Threshold resummation for the inclusive-hadron cross section in pp collisions
We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp→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 perfo...
| Authors: | , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2005 |
| Country: | Argentina |
| Institution: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repository: | CONICET Digital (CONICET) |
| Language: | English |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/73287 |
| Online Access: | http://hdl.handle.net/11336/73287 |
| Access Level: | Open access |
| Keyword: | Transverse Resummation Hadron https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| Summary: | We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp→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. © 2005 The American Physical Society. |
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