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Searches for new physics using the tt¯ invariant mass distribution in pp collisions at √s=8 TeV.

Abstract:
Searches for anomalous top quark-antiquark production are presented, based on pp collisions at √s=8 TeV. The data, corresponding to an integrated luminosity of 19.7 fb(-1), were collected with the CMS detector at the LHC. The observed tt¯ invariant mass spectrum is found to be compatible with the standard model prediction. Limits on the production cross section times branching fraction probe, for the first time, a region of parameter space for certain models of new physics not yet constrained by precision measurements.
Publication status:
Published

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Journal:
Physical Review Letters
Volume:
111
Issue:
21
Pages:
211804
Publication date:
2013-11-22
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Source identifiers:
442991
Language:
English
Keywords:
Pubs id:
pubs:442991
UUID:
uuid:3c8b8c04-5337-4db1-b47a-70d2be2759be
Local pid:
pubs:442991
Deposit date:
2014-02-08

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