Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-04-20
Phys.Rev. D65 (2002) 116006
Physics
High Energy Physics
High Energy Physics - Phenomenology
18 pages, 10 figures, accepted by Phys. Rev. D
Scientific paper
We investigate in detail the effects of the R-parity lepton number violation in the minimal supersymmetric standard model (MSSM) on the parent process $pp \to e^+ e^- + X$ at the CERN Large Hadron Collider (LHC). The numerical comparisons between the contributions of the R-parity violating effects to the parent process via the Drell-Yan subprocess and the gluon-gluon fusion are made. We find that the R-violating effects on $e^+ e^-$ pair production at the LHC could be significant. The results show that the cross section of the $ e^+ e^-$ pair productions via gluon-gluon collision at the LHC can be of the order of $10^2$ fb, and this subprocess maybe competitive with the production mechanism via the Drell-Yan subprocess. We give also quantitatively the analysis of the effects from both the mass of sneutrino and coupling strength of the R-parity violating interactions.
Jun Yin
Lang-Hui Wan
Ren-You Zhang
Wen-gan Ma
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