Mass and angular distributions of dijets produced in LHC pro ton-proton col- lisions at a centre-of-mass energy √ s = 7TeV have been studied with the ATLAS detector using the full 2011 data set with an integrated luminosity of 4.8fb − 1 . Dijet masses up to ∼ 4 . 0TeV have been probed. No resonance-like features have been observed in the dijet mass spectrum, and all angular distributions are cons istent with the predictions of QCD. Exclusion limits on six hypotheses of new phenomena hav e been set at 95% CL in terms of mass or energy scale, as appropriate. These hypothe ses include excited quarks below 2.83 TeV, colour octet scalars below 1.86TeV, heavy W bosons below 1.68 TeV, string resonances below 3.61 TeV, quantum black holes with s ix extra space-time dimen- sions for quantum gravity scales below 4.11 TeV, and quark co ntact interactions below a compositeness scale of 7.6 TeV in a destructive interferenc e scenario

G. Aad, T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, et al. (2013). ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at $ \sqrt{s}=7 $ TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2013, 29-1-29-46 [10.1007/JHEP01(2013)029].

ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at $ \sqrt{s}=7 $ TeV

BELLAGAMBA, LORENZO;BERTIN, ANTONIO;BOSCHERINI, DAVIDE;BRUNI, ALESSIA;BRUNI, GRAZIANO;CAFORIO, DAVIDE;DE CASTRO, STEFANO;DI SIPIO, RICCARDO;FABBRI, LAURA;FRANCHINI, MATTEO;GIACOBBE, BENEDETTO;MASSA, IGNAZIO GIACOMO;MENGARELLI, ALBERTO;MONZANI, SIMONE;PICCININI, MAURIZIO;RINALDI, LORENZO;ROMANO, MARINO;SBARRA, CARLA;SBRIZZI, ANTONIO;SEMPRINI CESARI, NICOLA;SPIGHI, ROBERTO;VALENTINETTI, SARA;VILLA, MAURO;I. Vivarelli;ZOCCOLI, ANTONIO;
2013

Abstract

Mass and angular distributions of dijets produced in LHC pro ton-proton col- lisions at a centre-of-mass energy √ s = 7TeV have been studied with the ATLAS detector using the full 2011 data set with an integrated luminosity of 4.8fb − 1 . Dijet masses up to ∼ 4 . 0TeV have been probed. No resonance-like features have been observed in the dijet mass spectrum, and all angular distributions are cons istent with the predictions of QCD. Exclusion limits on six hypotheses of new phenomena hav e been set at 95% CL in terms of mass or energy scale, as appropriate. These hypothe ses include excited quarks below 2.83 TeV, colour octet scalars below 1.86TeV, heavy W bosons below 1.68 TeV, string resonances below 3.61 TeV, quantum black holes with s ix extra space-time dimen- sions for quantum gravity scales below 4.11 TeV, and quark co ntact interactions below a compositeness scale of 7.6 TeV in a destructive interferenc e scenario
2013
G. Aad, T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, et al. (2013). ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at $ \sqrt{s}=7 $ TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2013, 29-1-29-46 [10.1007/JHEP01(2013)029].
G. Aad;T. Abajyan;B. Abbott;J. Abdallah;S. Abdel Khalek;A. A. Abdelalim;O. Abdinov;R. Aben;B. Abi;M. Abolins;O. S. AbouZeid;H. Abramowicz;H. Abreu;B. ...espandi
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/142459
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 102
  • ???jsp.display-item.citation.isi??? 80
social impact