Search for pair-produced massive coloured scalars in four-jet final states with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV

G. Aad , S. Aoun (1) , C. P. Bee (1) , C. Bertella (1) , N. Bousson (1) , J. C. Clémens (1) , Y. Coadou (1) , F. Djama (1) , F. Etienne (1) , L. Feligioni (1) , D. Hoffmann (1) , F. Hubaut (1) , E. B. F. G. Knoops (1) , E. Le Guirriec (1) , B. Li (1) , J. Maurer (1) , E. Monnier (1) , J. Odier (1) , P. Pralavorio (1) , A. Rozanov (1) , M. Talby (1) , N. Tannoury (1) , E. Tiouchichine (1) , S. Tisserant (1) , J. Toth (1) , F. Touchard (1) , L. Vacavant (1) , C. Biscarat (2) , E. Cogneras (2) , G. Rahal (2) , S. Abdel Khalek (3) , H. Abreu (3) , N. Andari (3) , C. Arnault (3) , E. Augé (3) , P. Barrillon (3) , M. Benoit (3) , S. Binet (3) , C. Bourdarios (3) , C. de La Taille (3) , J.B. de Vivie de Regie (3) , L. Duflot (3) , M. Escalier (3) , L. Fayard (3) , D. Fournier (3) , J.-F. Grivaz (3) , S. Henrot-Versillé (3) , J. Hrivnac (3) , L. Iconomidou-Fayard (3) , J. Idarraga (3) , M. Kado (3) , N. Lorenzo Martinez (3) , A. Lounis (3) , N. Makovec (3) , P. Matricon (3) , F. Niedercorn (3) , L. Poggioli (3) , P. Puzo (3) , A. Renaud (3) , D. Rousseau (3) , G. Rybkin (3) , J.B. Sauvan (3) , J. Schaarschmidt (3) , A.C. Schaffer (3) , L. Serin (3) , S. Simion (3) , R. Tanaka (3) , M. Teinturier (3) , J.J. Veillet (3) , I. Vukotic (3) , F. Wicek (3) , D. Zerwas (3) , Z. Zhang (3) , D. Boumediene (4) , Emmanuel Busato (4) , D. Calvet (4) , S. Calvet (4) , Reina Coromoto Camacho Toro (4) , Diane Cinca (5) , J. Donini (4) , R. Febbraro (4) , Ph. Gris (4) , N. Ghodbane (4) , C. Guicheney (4) , H. Liao (4) , D. Pallin (4) , Daniela Paredes Hernández (4) , F. Podlyski (4) , C. Santoni (4) , F. Vazeille (4) , S. Albrand (6) , M.L. Andrieux (6) , Q. Buat (6) , B. Clement (6) , J. Collot (6) , S. Crépé-Renaudin (6) , B. Dechenaux (6) , T. Delemontex (6) , P.A. Delsart (6) , M.H. Genest (6) , J.Y. Hostachy (6) , E. Laisne (6) , F. Ledroit-Guillon (6) , A. Lleres (6) , A. Lucotte (6) , F. Malek (6) , J. Stark (6) , X. Sun (6) , B. Trocmé (6) , J. Wang (6) , C. Weydert (6) , F. Vannucci (7) , L. Aperio Bella (8) , B. Aubert (8) , N. Berger (8) , J. Colas (8) , M. Delmastro (8) , L. Di Ciaccio (8) , T.K.O. Doan (8) , S. Elles (8) , C. Goy (8) , T. Hryn'Ova (8) , S. Jézéquel (8) , M. Kataoka (8) , J. Labbe (8) , R. Lafaye (8) , J. Leveque (8) , V.P. Lombardo (8) , N. Massol (8) , P. Perrodo (8) , E. Petit (8) , H. Przysiezniak (8) , E. Richter-Was (8) , G. Sauvage (8) , E. Sauvan (8) , M. Schwoerer (8) , T. Todorov (8) , D. Tsionou (8) , I. Wingerter-Seez (8) , R. Zitoun (8)

1 CPPM - Centre de Physique des Particules de Marseille
2 CC-IN2P3 - Centre de Calcul de l'IN2P3
3 LAL - Laboratoire de l'Accélérateur Linéaire
4 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
5 Laboratoire de Physique Corpusculaire
6 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
7 APC - Neutrinos
8 LAPP - Laboratoire d'Annecy de Physique des Particules

A search for pair-produced massive coloured scalar particles decaying to a four-jet final state is performed by the ATLAS experiment at the LHC in proton-proton collisions at sqrt(s) = 7 TeV. The analysed data sample corresponds to an integrated luminosity of 4.6 /fb. No deviation from the Standard Model is observed in the invariant mass spectrum of the two-jet pairs. A limit on the scalar gluon pair production cross-section of 70 pb (10 pb) is obtained at the 95% confidence level for a scalar gluon mass of 150 GeV (350 GeV). Interpreting these results as mass limits on scalar gluons, masses ranging from 150 GeV to 287 GeV are excluded at the 95% confidence level.

Domaines: Physique des Hautes Energies - Expérience [hep-ex]

G. Aad, S. Aoun, C. P. Bee, C. Bertella, N. Bousson, et al.. Search for pair-produced massive coloured scalars in four-jet final states with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV. European Physical Journal C: Particles and Fields, 2013, 73, pp.2263. ⟨10.1140/epjc/s10052-012-2263-z⟩. ⟨in2p3-00743056⟩