Dark Matter Searches in Jet plus Missing Energy in $\gamma \mathrm{p}$ collision at CERN LHC

Abstract

In this paper, we investigate the $\gamma \mathrm{p}$ photoproduction of jet plus missing energy signal to set limits on the couplings of the fermionic dark matter to the quarks at the LHC via the main reaction $\mathrm{pp}\to \mathrm{p}\gamma \mathrm{p}\to \mathrm{p}\chi \chi \mathrm{j}$. We assume a typical LHC multipurpose forward detectors and work in a model independent Effective Field Theory framework. Typically, when we do the background analysis, we also include their corresponding Single Diffractive (SD) productions. Our result shows that by requiring a $5\sigma$ ($S/\sqrt{\mathrm{B}}\ge 5$) signal deviation, with an integrated luminosity of $\mathcal{L}=200f{\mathrm{b}}^{-1}$, the lower bounds of WIMP masses scale can be detected up to $\mathrm{\Lambda }$ equal 665.5, 808.9 and 564.0 GeV for the forward detector acceptances ${\xi }_1$, ${\xi }_2$, and ${\xi }_3$, respectively, where $0.0015<{\xi }_1<0.5$, $0.1<{\xi }_2<0.5$ and $0.0015<{\xi }_3<0.15$.

33pages, 7figures. arXiv admin note: text overlap with arXiv:1406.3897, arXiv:1402.1817, change grammer errors, to appear in Phys.Rev.D

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