Next-to-Leading QCD Effect on the Quark Compositeness Search at the LHC

Journal Article · Fri Apr 08 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.142001· OSTI ID:21550278

Jun, Gao; Chongsheng, Li; Jian, Wang; Huaxing, Zhu ^[1]; Yuan, C -P ^[2]

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1. Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)
2. Department of Physics and Astronomy, Michigan State University, East Lansing, 48824 (United States)

We present the exact next-to-leading order (NLO) QCD corrections to the dijet production induced by the quark contact interactions at the CERN Large Hadron Collider. We show that, as compared to the exact calculation, the scaled NLO QCD prediction adopted by the ATLAS Collaboration has overestimated the new physics effect on some direct observables by more than 30% and renders a higher limit on the quark compositeness scale. The destructive contribution from the exact NLO correction will also lower the compositeness scale limit set by the CMS Collaboration.

• OSTI ID: 21550278
• Journal Information: Physical Review Letters, Vol. 106, Issue 14; Other Information: DOI: 10.1103/PhysRevLett.106.142001; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CERN
CERN LHC
CORRECTIONS
INTERACTIONS
QUANTUM CHROMODYNAMICS
QUARKS
ACCELERATORS
CYCLIC ACCELERATORS
FERMIONS
FIELD THEORIES
INTERNATIONAL ORGANIZATIONS
QUANTUM FIELD THEORY
STORAGE RINGS
SYNCHROTRONS