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Constraints on large-extra-dimensions model through 125 GeV Higgs pair production at the LHC

  • Regular Article - Theoretical Physics
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Abstract

Based on the analysis of 5 fb−1 of data at the LHC, the ATLAS and CMS collaborations have presented evidence for a Higgs boson with a mass in the 125 GeV range. We consider the 125 GeV neutral Higgs pair production process in the context of large-extra-dimensions (LED) model including the Kaluza–Klein (KK) excited gravitons at the LHC. We consider the standard model (SM) Higgs pair production in gluon–gluon fusion channel and pure LED effects through graviton exchange as well as their interferences. It is shown that such interferences should be included; the LED model raises the transverse momentum (P t ) and invariant mass (M HH ) distributions at high scales of P t and M HH of the Higgs pair production. By using the Higgs pair production we could set the discovery limit on the cutoff scale M S up to 6 TeV for δ=2 and 4.5 TeV for δ=6.

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Acknowledgements

We would like to thank Fawzi Boudjema to read the paper. Project supported by the National Natural Science Foundation of China (Grant No. 11147151, No. 11105083 and No. 10947139).

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Authors and Affiliations

  1. School of Physics and Technology, University of Jinan, Jinan, 250022, Shandong Province, P.R. China

    Hao Sun

  2. School of Physics, Shandong University, Jinan, 250100, Shandong Province, P.R. China

    Ya-Jin Zhou

  3. Guangdong University of Foreign Studies, Guangzhou, 510420, Guangdong Province, P.R. China

    He Chen

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  1. Hao Sun
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  2. Ya-Jin Zhou
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  3. He Chen
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Correspondence to Hao Sun.

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Sun, H., Zhou, YJ. & Chen, H. Constraints on large-extra-dimensions model through 125 GeV Higgs pair production at the LHC. Eur. Phys. J. C 72, 2011 (2012). https://doi.org/10.1140/epjc/s10052-012-2011-4

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  • DOI: https://doi.org/10.1140/epjc/s10052-012-2011-4

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