Search for extra dimensions in diphoton events from proton-proton collisions at $\sqrt {s} = 7$ TeV in the ATLAS detector at the LHC - Université Pierre et Marie Curie Accéder directement au contenu
Article Dans Une Revue New Journal of Physics Année : 2013

Search for extra dimensions in diphoton events from proton-proton collisions at $\sqrt {s} = 7$ TeV in the ATLAS detector at the LHC

G. Aad , S. Albrand (1) , M.L. Andrieux (1) , Q. Buat (1) , B. Clement (1) , J. Collot (1) , S. Crépé-Renaudin (1) , B. Dechenaux (1) , T. Delemontex (1) , P.A. Delsart (1) , M.H. Genest (1) , J.Y. Hostachy (1) , E. Laisne (1) , F. Ledroit-Guillon (1) , A. Lleres (1) , A. Lucotte (1) , F. Malek (1) , J. Stark (1) , X. Sun (1) , B. Trocmé (1) , J. Wang , C. Weydert (1) , C. Biscarat (2) , E. Cogneras (2) , G. Rahal (2) , L. Aperio Bella (3) , B. Aubert (3) , N. Berger (3) , J. Colas (3) , M. Delmastro (3) , L. Di Ciaccio (3) , T.K.O. Doan (3) , S. Elles (3) , C. Goy (3) , T. Hryn'Ova (3) , S. Jézéquel (3) , M. Kataoka (3) , J. Labbe (3) , R. Lafaye (3) , J. Leveque (3) , V.P. Lombardo (3) , N. Massol (3) , P. Perrodo (3) , E. Petit (3) , H. Przysiezniak (3) , E. Richter-Was (3) , G. Sauvage (3) , E. Sauvan (3) , M. Schwoerer (3) , T. Todorov (3) , D. Tsionou (3) , I. Wingerter-Seez (3) , R. Zitoun (3) , S. Abdel Khalek (4) , H. Abreu (4) , N. Andari (4) , C. Arnault (4) , E. Augé (4) , P. Barrillon (4) , M. Benoit (4) , S. Binet (4) , C. Bourdarios (4) , C. de La Taille (4) , J.B. de Vivie de Regie (4) , L. Duflot (4) , M. Escalier (4) , L. Fayard (4) , D. Fournier (4) , J.-F. Grivaz (4) , S. Henrot-Versillé (4) , J. Hrivnac (4) , L. Iconomidou-Fayard (4) , J. Idarraga (4) , M. Kado (4) , N. Lorenzo Martinez (4) , A. Lounis (4) , N. Makovec (4) , P. Matricon (4) , F. Niedercorn (4) , L. Poggioli (4) , P. Puzo (4) , A. Renaud (4) , D. Rousseau (4) , G. Rybkin (4) , J.B. Sauvan (4) , J. Schaarschmidt (4) , A.C. Schaffer (4) , L. Serin (4) , S. Simion (4) , R. Tanaka (4) , M. Teinturier (4) , J.J. Veillet (4) , I. Vukotic (4) , F. Wicek (4) , D. Zerwas (4) , Zhiqing Zhang (4) , D. Boumediene (5) , Emmanuel Busato (5) , D. Calvet (5) , S. Calvet (5) , Reina Coromoto Camacho Toro (5) , Diane Cinca (6) , J. Donini (5) , R. Febbraro (5) , Ph. Gris (5) , N. Ghodbane (5) , C. Guicheney (5) , H. Liao (5) , D. Pallin (5) , Daniela Paredes Hernández (5) , F. Podlyski (5) , C. Santoni (5) , F. Vazeille (5) , F. Vannucci (7) , S. Aoun (8) , C. P. Bee (8) , C. Bertella (8) , N. Bousson (8) , J. C. Clémens (8) , Y. Coadou (8) , F. Djama (8) , F. Etienne (8) , L. Feligioni (8) , D. Hoffmann (8) , F. Hubaut (8) , E. B. F. G. Knoops (8) , E. Le Guirriec (8) , B. Li (8) , J. Maurer (8) , E. Monnier (8) , J. Odier (8) , P. Pralavorio (8) , A. Rozanov (8) , M. Talby (8) , N. Tannoury (8) , S. Tisserant (8) , J. Toth (8) , F. Touchard (8) , L. Vacavant (8)
G. Aad
J. Wang
  • Fonction : Auteur
E. Cogneras
N. Berger
C. Goy
T. Hryn'Ova
E. Augé
D. Rousseau
Zhiqing Zhang
  • Fonction : Auteur
  • PersonId : 829631
S. Calvet
Diane Cinca
F. Vannucci
  • Fonction : Auteur
Y. Coadou

Résumé

The large difference between the Planck scale and the electroweak scale, known as the hierarchy problem, is addressed in certain models through the postulate of extra spatial dimensions. A search for evidence of extra spatial dimensions in the diphoton channel has been performed using the full set of proton-proton collisions at sqrt(s) = 7 TeV recorded in 2011 with the ATLAS detector at the CERN Large Hadron Collider. This dataset corresponds to an integrated luminosity of 4.9 /fb. The diphoton invariant mass spectrum is observed to be in good agreement with the expected Standard Model background. 95% confidence level lower limits of between 2.52 TeV and 3.92 TeV are set on the Ms scale in the context of the model proposed by Arkani-Hamed, Dimopoulos and Dvali, depending on the number of extra dimensions and the theoretical formalism used. In the context of the Randall--Sundrum model, a lower limit of 1.00 (2.06) TeV at 95% confidence level is set on the mass of the lightest graviton for couplings of k/Mpl = 0.01 (0.1). Combining with the ATLAS dilepton searches based on the 2011 data, the 95% confidence level limit on the Randall--Sundrum graviton mass is further tightened to 1.03 (2.23) TeV for k/Mpl = 0.01 (0.1).

Dates et versions

in2p3-00748189 , version 1 (05-11-2012)

Identifiants

Citer

G. Aad, S. Albrand, M.L. Andrieux, Q. Buat, B. Clement, et al.. Search for extra dimensions in diphoton events from proton-proton collisions at $\sqrt {s} = 7$ TeV in the ATLAS detector at the LHC. New Journal of Physics, 2013, 15, pp.043007. ⟨10.1088/1367-2630/15/4/043007⟩. ⟨in2p3-00748189⟩
62 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More