Measurement of the cross-section of high transverse momentum vector bosons reconstructed as single jets and studies of jet substructure in $pp$ collisions at ${\sqrt{s}}$ = 7 TeV with the ATLAS detector

G. Aad S. Abdel Khalek 1 A. Bassalat 1 C. Becot 1 S. Binet 1 C. Bourdarios 1 D. Charfeddine 1 J.B. De Vivie de Regie 1 L. Duflot 1 M. Escalier 1 L. Fayard 1 D. Fournier 1 J.-F. Grivaz 1 T. Guillemin 1 S. Henrot-Versillé 1 J. Hrivnac 1 L. Iconomidou-Fayard 1 M. Kado 1 A. Lounis 1 N. Makovec 1 P. Matricon 1 L. Poggioli 1 P. Puzo 1 A. Renaud 1 D. Rousseau 1 G. Rybkin 1 A.C. Schaffer 1 E. Scifo 1 L. Serin 1 S. Simion 1 R. Tanaka 1 H.L. Tran 1 D. Zerwas 1 Zhen Zhang 1 G. Rahal 2 D. Boumediene 3 Emmanuel Busato 3 D. Calvet 3 S. Calvet 3 J. Donini 3 E. Dubreuil 3 N. Ghodbane 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 S. Albrand 4 J. Brown 4 B. Clement 4 J. Collot 4 S. Crépé-Renaudin 4 B. Dechenaux 4 T. Delemontex 4 P.A. Delsart 4 C. Gabaldon 4 M.H. Genest 4 J.Y. Hostachy 4 E. Laisne 4 B.T. Le 4 F. Ledroit-Guillon 4 A. Lleres 4 A. Lucotte 4 F. Malek 4 C. Monini 4 J. Stark 4 B. Trocmé 4 M. Wu 4 Z. Barnovska 5 N. Berger 5 J. Colas 5 M. Delmastro 5 L. Di Ciaccio 5 T.K.O. Doan 5 S. Elles 5 C. Goy 5 T. Hryn'Ova 5 S. Jézéquel 5 H. Keoshkerian 5 I. Koletsou 5 R. Lafaye 5 J. Leveque 5 V.P. Lombardo 5 N. Massol 5 P. Perrodo 5 H. Przysiezniak 5 G. Sauvage 5 E. Sauvan 5 M. Schwoerer 5 O. Simard 5 T. Todorov 5 I. Wingerter-Seez 5 L. Alio 6 M. Barbero 6 C. Bertella 6 N. Bousson 6 J. C. Clémens 6 Y. Coadou 6 F. Djama 6 F. Etienne 6 L. Feligioni 6 D. Hoffmann 6 F. Hubaut 6 E. B. F. G. Knoops 6 E. Le Guirriec 6 B. Li 6 D. Madaffari 6 K. Mochizuki 6 E. Monnier 6 S. Muanza 6 Y. Nagai 6 P. Pralavorio 6 A. Rozanov 6 T. Serre 6 M. Talby 6 N. Tannoury 6 E. Tiouchichine 6 S. Tisserant 6 J. Toth 6 F. Touchard 6 M. Ughetto 6 L. Vacavant 6
Abstract : This paper presents a measurement of the cross-section for high transverse momentum $W$ and $Z$ bosons produced in $pp$ collisions and decaying to all-hadronic final states. The data used in the analysis were recorded by the ATLAS detector at the CERN Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=7~\rm TeV$ and correspond to an integrated luminosity of $4.6~\rm fb^{-1}$. The measurement is performed by reconstructing the boosted $W$ or $Z$ bosons in single jets. The reconstructed jet mass is used to identify the $W$ and $Z$ bosons, and a jet substructure method based on energy cluster information in the jet centre-of-mass frame is used to suppress the large multi-jet background. The cross-section for events with a hadronically decaying $W$ or $Z$ boson, with transverse momentum $p_{\rm T}>320\,{\rm GeV}$ and pseudorapidity $|\eta|<1.9$, is measured to be $\sigma_{W+Z}= 8.5 \pm 1.7$ pb and is compared to the next-to-leading-order calculations. The selected events are further used to study jet grooming techniques.
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New Journal of Physics, Institute of Physics: Open Access Journals, 2014, 16, pp.113013. 〈10.1088/1367-2630/16/11/113013〉
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G. Aad, S. Abdel Khalek, A. Bassalat, C. Becot, S. Binet, et al.. Measurement of the cross-section of high transverse momentum vector bosons reconstructed as single jets and studies of jet substructure in $pp$ collisions at ${\sqrt{s}}$ = 7 TeV with the ATLAS detector. New Journal of Physics, Institute of Physics: Open Access Journals, 2014, 16, pp.113013. 〈10.1088/1367-2630/16/11/113013〉. 〈in2p3-01022724〉

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