Next-to-leading order QCD predictions for A{sup 0}{gamma} associated production at the CERN Large Hadron Collider

Journal Article · Tue Mar 01 00:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.054002· OSTI ID:21578178

Liang, Dai; Dingyu, Shao; Jun, Gao; Hao, Zhang ^[1]; Chongsheng, Li ^[1]

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1. Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)

We calculate the complete next-to-leading order (NLO) QCD corrections (including SUSY QCD corrections) to the inclusive total cross sections of the associated production processes pp{yields}A{sup 0}{gamma}+X in the minimal supersymmetric standard model (MSSM) at the CERN Large Hadron Collider (LHC). Our results show that the enhancement of the total cross sections from the NLO QCD corrections can reach 25%{approx}15% for 200 GeV<m{sub A}<500 GeV and tan{beta}=50. The scale dependence of the total cross section is improved by the NLO corrections in general. We also show the Monte Carlo simulation results for the {tau}{sup +}{tau}{sup -}+{gamma} signature including the complete NLO QCD effects, and find an observable signature above the standard model (SM) background for a normal luminosity of 100 fb{sup -1} at the LHC.

• OSTI ID: 21578178
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevD.83.054002; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CERN
CERN LHC
COMPUTERIZED SIMULATION
CORRECTIONS
GEV RANGE 100-1000
LUMINOSITY
MONTE CARLO METHOD
QUANTUM CHROMODYNAMICS
STANDARD MODEL
SUPERSYMMETRY
TOTAL CROSS SECTIONS
ACCELERATORS
CALCULATION METHODS
CROSS SECTIONS
CYCLIC ACCELERATORS
ENERGY RANGE
FIELD THEORIES
GEV RANGE
GRAND UNIFIED THEORY
INTERNATIONAL ORGANIZATIONS
MATHEMATICAL MODELS
OPTICAL PROPERTIES
PARTICLE MODELS
PHYSICAL PROPERTIES
QUANTUM FIELD THEORY
SIMULATION
STORAGE RINGS
SYMMETRY
SYNCHROTRONS
UNIFIED GAUGE MODELS