Effects of lepton number violating interactions on $t \bar t$ production at NLC

Details Effects of lepton number violating interactions on $t \bar t$ production at NLC Effects of lepton number violating interactions on $t \bar t$ production at NLC

2001-08-18

arxiv.org/abs/hep-ph/0108150v2

Phys.Rev. D65 (2002) 054019

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version to appear in Physical Review D

Scientific paper

10.1103/PhysRevD.65.054019

We discuss the effects of lepton number violating interactions namely, R-parity violation and leptoquarks on top quark pair production at the upcoming $e^+ e^-$ linear colliders. Effects of SU(2) singlet, doublet and triplet leptoquark interactions are investigated. R-parity violating minimal supersymmetric standard model also allows certain kinds of lepton number violating interactions which are same as singlet leptoquarks with left-handed interactions. We have calculated the cross-section of $e^+ e^- \to t \bar t$ in presence of the above interactions. With conservative values of lepton number violating coupling strengths we got enhancement of top-pair production cross-section in all of the above cases.

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