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Title
Japanese:Search for low-scale gravity signatures in multi-jet final states with the ATLAS detector at $ \sqrt{s}=8 $ TeV 
English:Search for low-scale gravity signatures in multi-jet final states with the ATLAS detector at $ \sqrt{s}=8 $ TeV 
Author
Japanese: 山口洋平.  
English: Youhei Yamaguchi.  
Language English 
Journal/Book name
Japanese: 
English: 
Volume, Number, Page Vol. "07"        pp. "032"
Published date Mar. 2015 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
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English: 
Official URL http://inspirehep.net/record/1357199
 
DOI https://doi.org/10.1007/JHEP07(2015)032
Abstract We search for evidence of physics beyond the Standard Model in the production of final states with multiple high transverse momentum jets, using 20.3 fb$^{-1}$ of proton-proton collision data recorded by the ATLAS detector at $\sqrt{s} = 8$ TeV. No excess of events beyond Standard Model expectations is observed, and upper limits on the visible cross-section for non-Standard Model production of multi-jet final states are set. Using a wide variety of models for black hole and string ball production and decay, the limit on the cross-section times acceptance is as low as 0.16 fb at the 95% CL for a minimum scalar sum of jet transverse momentum in the event of about 4.3 TeV. Using models for black hole and string ball production and decay, exclusion contours are determined as a function of the production mass threshold and the gravity scale. These limits can be interpreted in terms of lower-mass limits on black hole and string ball production that range from 4.6 to 6.2

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