Study of the slepton nonuniversality at the CERN Large Hadron Collider

Journal Article · Fri Oct 01 04:00:00 EDT 2004 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.70.075016· OSTI ID:20705387

Goto, Toru; Nojiri, Mihoko M ^[1]; Kawagoe, Kiyotomo ^[2]

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1. YITP, Kyoto University, Kyoto 606-8502 (Japan)
2. Department of Physics, Kobe University, Kobe 657-8501 (Japan)

In supersymmetric theory, the sfermion-fermion-gaugino interactions convert a sfermion into a fermion in the same chiral multiplet. The effect appears as the asymmetry between m(jl{sup +}) and m(jl{sup -}) distributions at the CERN Large Hadron Collider where jets (j) and leptons (l{sup {+-}}) arise from the cascade decay q{yields}q{chi}{sub 2}{sup 0}{yields}qll. Furthermore, the decay branching ratios and the charge asymmetries in m(jl{sup {+-}}) distributions are flavor nonuniversal due to the l{sub L} and l{sub R} mixing. When tan{beta} is large, the nonuniversality between e and {mu} becomes O(10)% level. We perform a Monte Carlo simulation for some minimal supergravity benchmark points to demonstrate the detectablity.

• OSTI ID: 20705387
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 70; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BRANCHING RATIO
CERN LHC
CHIRAL SYMMETRY
CHIRALITY
COMPUTERIZED SIMULATION
CONSERVATION LAWS
DISTRIBUTION
FLAVOR MODEL
JET MODEL
LEPTONS
MONTE CARLO METHOD
PARTICLE DECAY
PARTICLE PRODUCTION
QUARKS
SPARTICLES
SUPERGRAVITY
SUPERSYMMETRY