Search for pair production of massive particles decaying into three quarks with the ATLAS detector in sqrt(s) = 7 TeV pp collisions at the LHC

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

doi:10.1007/JHEP12(2012)086

Search for pair production of massive particles decaying into three quarks with the ATLAS detector in sqrt(s) = 7 TeV pp collisions at the LHC

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 E. Busato ⁴ D. Calvet ⁴ S. Calvet ⁴ R. 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 D. Paredes Hernandez 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

LPC - Laboratoire de Physique Corpusculaire [Clermont-Ferrand]

6 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

7 APC - Neutrinos

LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies, APC - UMR 7164 - AstroParticule et Cosmologie

8 LAPP - Laboratoire d'Annecy le Vieux de Physique des Particules

Abstract : A search is conducted for hadronic three-body decays of a new massive coloured particle in sqrt(s) = 7 TeV pp collisions at the LHC using an integrated luminosity of 4.6/fb collected by the ATLAS detector. Supersymmetric gluino pair production in the context of a model with R-parity violation is used as a benchmark scenario. The analysis is divided into two search channels, each optimised separately for their sensitivity to high-mass and low-mass gluino production. The first search channel uses a stringent selection on the transverse momentum of the six leading jets and is performed as a counting experiment. The second search channel focuses on low-mass gluinos produced with a large boost. Large-radius jets are selected and the invariant mass of each of the two leading jets is used as a discriminant between the signal and the background. The results are found to be consistent with Standard Modelexpectations and limits are set on the allowed gluino mass.

Document type :

Journal articles

Journal of High Energy Physics, Institute of Physics (IOP), 2012, 12, pp.086. <10.1007/JHEP12(2012)086>

Domain :

Physics / High Energy Physics - Experiment

http://hal.in2p3.fr/in2p3-00743055
Contributor : Danielle Cristofol <>
Submitted on : Thursday, October 18, 2012 - 8:24:17 AM
Last modification on : Thursday, January 29, 2015 - 9:26:56 AM

Search for pair production of massive particles decaying into three quarks with the ATLAS detector in sqrt(s) = 7 TeV pp collisions at the LHC

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