Associated production of graviton with $e^+e^-$ pair via photon-photon collisions at a linear collider

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dc.creatorYa-Jin, Zhou
dc.creatorWen-Gan, Ma
dc.creatorLiang, Han
dc.creatorRen-You, Zhang
dc.date2007-08-09
dc.date.accessioned2026-07-07T11:41:46Z
dc.date.available2026-07-07T11:41:46Z
dc.descriptionWe investigate the process \rreeG at the future International Linear Collider(ILC), where G_n is the Kaluza-Klein graviton in the Large Extra Dimension Model. When the fundamental energy scale is of a few ${\rm TeV}$, the cross section of this process can reach several hundred fb at a photon-photon collider with $\sqrt{s}=500 \sim 1000 GeV$, and the cross section in J=2 polarized photon collision mode is much larger than that in J=0 polarized photon collision mode. We present strategies to distinguish the graviton signal from numerous SM backgrounds, and find that the graviton signal with extra dimensions $δ=3$ can be detected when ${\rm M_S} \le 2.67(1.40) {\rm TeV}$ and $γγ$ c.m.s. energy $\sqrt{s}=1000(500) {\rm GeV}$ in unpolarized photon collision mode, while the detecting upper limit can be increased to 2.79(1.44) ${\rm TeV}$ in $+ -$ ($λ_1=1$, $λ_2=-1$) polarized photon collision mode(with photon polarization efficiency $P_γ=0.9$).
dc.descriptionAccepted by Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0708.1195
dc.identifierhttp://arxiv.org/abs/0708.1195
dc.identifierPhys.Rev.D76:054003,2007
dc.identifierdoi:10.1103/PhysRevD.76.054003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200652
dc.subjectHigh Energy Physics - Phenomenology
dc.titleAssociated production of graviton with $e^+e^-$ pair via photon-photon collisions at a linear collider
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