Full one-loop electroweak and NLO QCD corrections to the associated production of chargino and neutralino at hadron colliders

Journal Article · Wed Mar 01 04:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.73.055002· OSTI ID:20776889

Hao, Sun; Liang, Han; Renyou, Zhang; Yi, Jiang; Lei, Guo ^[1]; Wengan, Ma ^[2]

---

1. Department of Modern Physics, University of Science and Technology of China (USTC), Hefei, Anhui 230027 (China)
2. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080 (China)

We study the process of the association production of chargino and neutralino including the next-to-leading order (NLO) QCD and the complete one-loop electroweak corrections in the framework of the minimal supersymmetric standard model at the Fermilab Tevatron and the CERN Large Hadron Collider. In both the NLO QCD and one-loop electroweak calculations we apply the algorithm of the phase-space slicing method. We find that the NLO QCD corrections generally increase the Born cross sections, while the electroweak relative corrections decrease the Born cross section in most of the chosen parameter space. The NLO QCD and electroweak relative corrections typically have the values of about 32% and -8% at the Tevatron, and about 42% and -6% at the Large Hadron Collider, respectively. The results show that both the NLO QCD and the complete one-loop electroweak corrections to the processes pp/pp{yields}{chi}-tilde{sub 1}{sup {+-}}{chi}-tilde{sub 2}{sup 0}+X are generally significant and should be taken into consideration in precision experimental analysis.

• OSTI ID: 20776889
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 73; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGORITHMS
BORN APPROXIMATION
CERN LHC
CORRECTIONS
FERMILAB TEVATRON
HADRONS
INCLUSIVE INTERACTIONS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PHASE SPACE
PROTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY