CERN Accelerating science

Article
Report number	hep-ph/0204241
Title	Effects of the R-parity violation in the minimal supersymmetric standard model on dilepton pair production at the CERN LHC
Author(s)	Jun, Y (Hefei, CUST) ; Wen Gan Ma (CCAST World Lab, Beijing ; Hefei, CUST) ; Lang-Hui, W (Hefei, CUST) ; Ren Zhao You (Hefei, CUST)
Publication	2002
Imprint	20 Apr 2002
Number of pages	18
Note	Comments: 18 pages, 10 figures, accepted by Phys. Rev. D
In:	Phys. Rev. D 65 (2002) 116006
DOI	10.1103/PhysRevD.65.116006
Subject category	Particle Physics - Phenomenology
Abstract	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.

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