Next-to-leading-order supersymmetric QCD corrections to the tbH{sup -} associated production at hadron colliders

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

DOI:https://doi.org/10.1103/PhysRevD.73.015012· OSTI ID:20774641

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

---

1. Department of Modern Physics, University of Science and Technology of China (USTC), Hefei, Anhui 230026 (China)
2. CCAST (World Laboratory), P.O. Box 8730, Beijing, 100080 (China)

We present the next-to-leading-order QCD corrected total cross sections and the distributions of the transverse momenta of the final anti-bottom quark, top quark, and charged Higgs boson for the processes of pp/pp{yields}tbH{sup -}+X in the minimal supersymmetric standard model at Tevatron and CERN LHC. We find that the next-to-leading-order (NLO) QCD corrections significantly modify the leading-order distributions of the transverse momenta of final particles (p{sub T}{sup b}, p{sub T}{sup t}, and p{sub T}{sup H{sup -}}), and the total NLO QCD corrections reduce the dependence of the cross section on the renormalization and factorization scales; in particular, the NLO QCD corrected cross sections at the LHC are nearly independent of these scales. Our results show that the relative correction is obviously related to m{sub H{sup -}} and tan{beta}, and the total NLO QCD relative corrections can be beyond -50% at Tevatron and approach -40% at the LHC in our chosen parameter space.

• OSTI ID: 20774641
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 1 Vol. 73; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B QUARKS
CERN LHC
COLLIDING BEAMS
CORRECTIONS
DISTRIBUTION
FACTORIZATION
FERMILAB TEVATRON
HIGGS BOSONS
PARTICLE PRODUCTION
PROTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
RENORMALIZATION
STANDARD MODEL
SUPERSYMMETRY
T QUARKS
TOTAL CROSS SECTIONS
TRANSVERSE MOMENTUM