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Abstract:

A search for new interactions and resonances produced in LHC proton-proton (pp) collisions at a centre-of-mass energy √s = 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. © 2011 CERN for the benefit of the ATLAS Collaboration.

Registro:

Documento: Artículo
Título:A search for new physics in dijet mass and angular distributions in ppcollisions at √s=7 TeV measured with the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 3061 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 3061 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Angular distribution; Elementary particles; Tellurium compounds; ATLAS detectors; Centre-of-mass energies; Contact interaction; Gaussian signals; Integrated luminosity; Novel techniques; Production cross section; Quantum gravity; Gravitation
Año:2011
Volumen:13
DOI: http://dx.doi.org/10.1088/1367-2630/13/5/053044
Título revista:New Journal of Physics
Título revista abreviado:New J. Phys.
ISSN:13672630
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13672630_v13_n_p_Aad

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Citas:

---------- APA ----------
(2011) . A search for new physics in dijet mass and angular distributions in ppcollisions at √s=7 TeV measured with the ATLAS detector. New Journal of Physics, 13.
http://dx.doi.org/10.1088/1367-2630/13/5/053044
---------- CHICAGO ----------
Aad, G. "A search for new physics in dijet mass and angular distributions in ppcollisions at √s=7 TeV measured with the ATLAS detector" . New Journal of Physics 13 (2011).
http://dx.doi.org/10.1088/1367-2630/13/5/053044
---------- MLA ----------
Aad, G. "A search for new physics in dijet mass and angular distributions in ppcollisions at √s=7 TeV measured with the ATLAS detector" . New Journal of Physics, vol. 13, 2011.
http://dx.doi.org/10.1088/1367-2630/13/5/053044
---------- VANCOUVER ----------
Aad, G. A search for new physics in dijet mass and angular distributions in ppcollisions at √s=7 TeV measured with the ATLAS detector. New J. Phys. 2011;13.
http://dx.doi.org/10.1088/1367-2630/13/5/053044