Aad_2011_New_J._Phys._13_053044.pdf (1.02 MB)
A search for new physics in dijet mass and angular distributions in ppcollisions at vs=7 TeV measured with the ATLAS detector
journal contribution
posted on 2023-06-09, 20:27 authored by Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, Antonella De SantoAntonella De Santo, C J Potter, Fabrizio SalvatoreFabrizio Salvatore, Mark SuttonMark Sutton, Iacopo Vivarelli, Atlas Collaboration, othersA search for new interactions and resonances produced in LHC proton-proton (pp) collisions at a centre-of-mass energy vs = 7 TeV was performed with the ATLAS detector. Using a dataset with an integrated luminosity of 36 pb -1, dijet mass and angular distributions were measured up to dijet masses of ~3.5TeV and were found to be in good agreement with Standard Model predictions. This analysis sets limits at 95% CL on various models for new physics: an excited quark is excluded for mass between 0.60 and 2.64 TeV, an axigluon hypothesis is excluded for axigluon masses between 0.60 and 2.10 TeV and quantum black holes are excluded in models with six extra space-time dimensions for quantum gravity scales between 0.75 and 3.67 TeV. Production cross section limits as a function of dijet mass are set using a simplified Gaussian signal model to facilitate comparisons with other hypotheses. Analysis of the dijet angular distribution using a novel technique simultaneously employing the dijet mass excludes quark contact interactions with a compositeness scale A below 9.5 TeV.
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- Published
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- Published version
Journal
New Journal of PhysicsISSN
1367-2630Publisher
Institute of PhysicsExternal DOI
Volume
13Page range
1-45Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2020-01-28First Open Access (FOA) Date
2020-01-28First Compliant Deposit (FCD) Date
2020-01-28Usage metrics
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