Large Extra Dimension effects through Light-by-Light Scattering at the CERN LHC
作者： Hao Sun
DOI: 10.1140/EPJC/S10052-014-2977-1
关键词:
摘要: Observing light-by-light scattering at the Large Hadron Collider (LHC) has received quite some attention and it is believed to be a clean sensitive channel possible new physics. In this paper, we study diphoton production LHC via process $\rm pp\rightarrow p\gamma\gamma p\rightarrow p$ through graviton exchange in Extra Dimension (LED) model. Typically, when do background analysis, also Double Pomeron Exchange (DPE) of $\gamma\gamma$ production. We compare its quark-quark collision mode gluon-gluon find that contributions from are comparable one. Our result shows, for extra dimension $\delta=4$, with an integrated luminosity {\cal L} = 200 fb^{-1}$ 14 TeV LHC, can probe LED effects up scale M_S=5.06 (4.51, 5.11) TeV$ forward detector acceptance $\xi_1 (\xi_2, \xi_3)$, respectively, where $0.0015<\xi_1<0.5$, $0.1<\xi_2<0.5$ $0.0015<\xi_3<0.15$.
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