One-side forward-backward asymmetry at the LHC

Journal Article · Sat Jan 01 00:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.015002· OSTI ID:21503891

Youkai, Wang; Bo, Xiao ^[1]; Shouhua, Zhu ^[1]

---

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

Forward-backward asymmetry A{sub FB} is an essential observable to study the nature of coupling in the standard model and physics beyond the standard model, as shown at LEP and Tevatron. As a proton-proton collider, the LHC does not have the preferred direction contrary to her counterparts, namely, LEP and Tevatron. Therefore, A{sub FB} is not applicable at the LHC. However, for the proton the momentum of the valence quark is usually larger than that of the sea quark. Utilizing this feature we have defined a so-called one-side forward-backward asymmetry A{sub OFB} for the top quark pair production at the LHC in the previous work. In this paper we extend our studies to the charged leptons and bottom quarks as the final states. Our numerical results show that at the LHC A{sub OFB} can be utilized to study the nature of the couplings once enough events are collected.

• OSTI ID: 21503891
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevD.83.015002; (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
ASYMMETRY
B QUARKS
CERN LHC
COUPLING
FERMILAB TEVATRON
LEP STORAGE RINGS
LEPTONS
LINEAR COLLIDERS
PAIR PRODUCTION
PROTON-PROTON INTERACTIONS
PROTONS
STANDARD MODEL
T QUARKS
VALENCE
ACCELERATORS
BARYON-BARYON INTERACTIONS
BARYONS
BEAUTY PARTICLES
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LINEAR ACCELERATORS
MATHEMATICAL MODELS
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
POSTULATED PARTICLES
PROTON-NUCLEON INTERACTIONS
QUANTUM FIELD THEORY
QUARKS
STORAGE RINGS
SYNCHROTRONS
TOP PARTICLES
UNIFIED GAUGE MODELS