Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at $\sqrt{s}=7$ TeV - Université Clermont Auvergne Accéder directement au contenu
Article Dans Une Revue European Physical Journal C: Particles and Fields Année : 2015

Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at $\sqrt{s}=7$ TeV

G. Aad (1) , L. Alio (1) , M. Barbero (1) , C. Bertella (1) , J.C. Clémens (1) , Y. Coadou (1) , Sara Diglio (1) , F. Djama (1) , L. Feligioni (1) , D. Hoffmann (1) , F. Hubaut (1) , E. B. F. G. Knoops (1) , E. Le Guirriec (1) , B. Li (1) , D. Madaffari (1) , K. Mochizuki (1) , E. Monnier (1) , S. Muanza (1) , Y. Nagai (1) , P. Pralavorio (1) , A. Rozanov (1) , T. Serre (1) , M. Talby (1) , E. Tiouchichine (1) , S. Tisserant (1) , J. Toth (1) , F. Touchard (1) , M. Ughetto (1) , L. Vacavant (1) , H. Bachaou (2) , F. Balli (2) , F. Bauer (2) , N. Besson (2) , J.-B. Blanchard (2) , M. Boonekamp (2) , A. Calandri (2) , L. Chevalier (2) , M. Dano Hoffmann (2) , F. Deliot (2) , J. Ernwein (2) , A.I. Etienvre (2) , A. Formica (2) , P.F. Giraud (2) , J. Goncalves Pinto Firmino da Costa (2) , H.M.X. Grabas (2) , C. Guyot (2) , R. Hanna (2) , S. Hassani (2) , W. Kozanecki (2) , E. Lancon (2) , J.F. Laporte (2) , C. Maiani (2) , P. Mal (2) , B. Mansoulie (2) , H. Martinez (3) , N. Meric (2) , J.-P. Meyer (2) , R. Nicolaidou (2) , A. Ouraou (2) , E. Protopapadaki (2) , C.R. Royon (2) , L.L. Schoffel (2) , Ph. Schune (2) , Ph. Schwemling (2) , J. Schwindling (2) , D. Tsionou (2) , N. Vranjes (2) , M. Xiao (2) , D. Boumediene (3) , Emmanuel Busato (3) , D. Calvet (3) , S. Calvet (3) , J. Donini (3) , E. Dubreuil (3) , N. Ghodbane (3) , G. Gilles (3) , Ph. Gris (3) , C. Guicheney (3) , H. Liao (3) , D. Pallin (3) , Daniela Paredes Hernández (3) , F. Podlyski (3) , C. Santoni (3) , Timothée Theveneaux-Pelzer (3) , Loïc Valery (3) , F. Vazeille (3) , G. Rahal (4) , T. Beau (5) , M. Bomben (5) , G. Calderini (5) , F. Crescioli (5) , O. Davignon (5) , S. de Cecco (5) , A. Demilly (5) , F. Derue (5) , P. Francavilla (5) , M.W. Krasny (5) , D. Lacour (5) , B. Laforge (5) , S. Laplace (5) , O. Le Dortz (5) , G. Lefebvre (5) , B. Malaescu (5) , G. Marchiori (5) , I. Nikolic-Audit (5) , J. Ocariz (5) , S. Pires (5) , M. Ridel (5) , L. Roos (5) , S. Trincaz-Duvoid (5) , F. Vannucci (5) , D. Varouchas (5) , Z. Barnovska (6) , N. Berger (6) , M. Delmastro (6) , L. Di Ciaccio (6) , T.K.O. Doan (6) , S. Elles (6) , C. Goy (6) , T. Hryn'Ova (6) , S. Jézéquel (6) , H. Keoshkerian (6) , I. Koletsou (6) , R. Lafaye (6) , J. Leveque (6) , V.P. Lombardo (6) , N. Massol (6) , H. Przysiezniak (6) , G. Sauvage (6) , E. Sauvan (6) , M. Schwoerer (6) , O. Simard (6) , T. Todorov (6) , I. Wingerter-Seez (6) , S. Albrand (7) , J. Brown (7) , J. Collot (7) , S. Crépé-Renaudin (7) , B. Dechenaux (7) , P.A. Delsart (7) , C. Gabaldon (7) , M.H. Genest (7) , J.Y. Hostachy (7) , F. Ledroit-Guillon (7) , A. Lleres (7) , A. Lucotte (7) , F. Malek (7) , C. Monini (7) , J. Stark (7) , B. Trocmé (7) , M. Wu (7) , S. Abdel Khalek (8) , A. Bassalat (8) , C. Becot (8) , S. Binet (8) , C. Bourdarios (8) , D. Charfeddine (8) , J.B. de Vivie de Regie (8) , L. Duflot (8) , M. Escalier (8) , L. Fayard (8) , D. Fournier (8) , J.-F. Grivaz (8) , T. Guillemin (8) , F. Hariri (8) , S. Henrot-Versillé (8) , J. Hrivnac (8) , L. Iconomidou-Fayard (8) , M. Kado (8) , A. Lounis (8) , N. Makovec (8) , L. Poggioli (8) , P. Puzo (8) , A. Renaud (8) , D. Rousseau (8) , G. Rybkin (8) , A.C. Schaffer (8) , E. Scifo (8) , L. Serin (8) , S. Simion (8) , R. Tanaka (8) , H.L. Tran (8) , D. Zerwas (8) , Zhongkai Zhang (8)
G. Aad
Y. Coadou
S. Calvet
N. Berger
C. Goy
T. Hryn'Ova
D. Rousseau

Résumé

The mass of the top quark is measured in a data set corresponding to 4.6 fb$^{-1}$ of proton-proton collisions with centre-of-mass energy $\sqrt{s}=7$ TeV collected by the ATLAS detector at the LHC. Events consistent with hadronic decays of top-antitop quark pairs with at least six jets in the final state are selected. The substantial background from multijetproduction is modelled with data-driven methods that utilise the number of identified $b$-quark jets and the transverse momentum of the sixth leading jet,which have minimal correlation. The top-quark mass is obtained from template fits to the ratio of three-jet to dijet mass. The three-jet mass is calculated from the three jets produced in a top-quark decay. Using these three jets the dijet mass is obtained from the two jets produced in the $W$ boson decay. The top-quark mass obtained from this fit is thus less sensitive to the uncertainty in the energy measurement of the jets. A binned likelihood fit yields a top-quark mass of $m_{t} = 175.1 \pm 1.4$ (stat) $\pm 1.2$ (syst) GeV.

Dates et versions

in2p3-01060227 , version 1 (03-09-2014)

Identifiants

Citer

G. Aad, L. Alio, M. Barbero, C. Bertella, J.C. Clémens, et al.. Measurement of the top-quark mass in the fully hadronic decay channel from ATLAS data at $\sqrt{s}=7$ TeV. European Physical Journal C: Particles and Fields, 2015, 75 (4), pp.158. ⟨10.1140/epjc/s10052-015-3373-1⟩. ⟨in2p3-01060227⟩
61 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More