Searches for heavy diboson resonances in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

M. Aaboud Z. Barnovska-Blenessy 1 N. Berger 1 M. Delmastro 1 L. Di Ciaccio 1 S. Elles 1 K. Grevtsov 1 T. Guillemin 1 T. Hryn’ova 1 S. Jézéquel 1 I. Koletsou 1 R. Lafaye 1 Jérémy Lévêque 1 P. Mastrandea 1 G. Sauvage 1 E. Sauvan 1 B.H. Smart 1 T. Todorov 1 I. Wingerter-Seez 1 E. Yatsenko 1 G. Aad 2 M. Alstaty 2 M. Barbero 2 A. Calandri 2 T.P. Calvet 2 Y. Coadou 2 C. Diaconu 2 S. Diglio 2 F. Djama 2 V. Ellajosyula 2 L. Feligioni 2 J. Gao 2 A. Hadef 2 G.D. Hallewell 2 F. Hubaut 2 S.J. Kahn 2 E. B. F. G. Knoops 2 E. Le Guirriec 2 J. Liu 2 K. Liu 2 D. Madaffari 2 E. Monnier 2 S. Muanza 2 E. Nagy 2 P. Pralavorio 2 Y. Rodina 2 A. Rozanov 2 M. Talby 2 T. Theveneaux-Pelzer 2 R.E. Ticse Torres 2 S. Tisserant 2 J. Toth 2 F. Touchard 2 L. Vacavant 2 Chen Wang 2 M.K. Ayoub 3 A. Bassalat 3 S. Binet 3 C. Becot C. Bourdarios 3 J.B. de Vivie De Regie 3 D. Delgove 3 L. Duflot 3 M. Escalier 3 L. Fayard 3 D. Fournier 3 E.L. Gkougkousis 3 J.-F. Grivaz 3 F. Hariri 3 S. Henrot-Versille 3 J. Hrivnac 3 L. Iconomidou-Fayard 3 M. Kado 3 A. Lounis 3 N. Makovec 3 N. Morange 3 C. Nellist 3 P. Petroff 3 L. Poggioli 3 P. Puzo 3 A. Renaud 3 G. Rybkin 3 D. Rousseau 3 A.C. Schaffer 3 L. Serin 3 E. Scifo 3 S. Simion 3 R. Tanaka 3 D. Zerwas 3 Zhongkai Zhang 3 Y. Zhao 3 G. Rahal 4 D. Boumediene 5 E. Busato 5 D. Calvet 5 S. Calvet 5 A.R. Chomont 5 J. Donini 5 Ph. Gris 5 R. Madar 5 D. Pallin 5 S.M. Romano Saez 5 C. Santoni 5 D. Simon 5 F. Vazeille 5 S. Albrand 6 S. Berlendis 6 C. Camincher 6 J. Collot 6 S. Crépé-Renaudin 6 P.A. Delsart 6 C. Gabaldon 6 M.H. Genest 6 P.O.J. Gradin 6 J.Y. Hostachy 6 F. Ledroit-Guillon 6 A. Lleres 6 A. Lucotte 6 F. Malek 6 E. Petit 6 J. Stark 6 B. Trocmé 6 M. Wu 6
1 LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules - Laboratoire d'Annecy de Physique des Particules
2 CPPM - Centre de Physique des Particules de Marseille
3 LAL - Laboratoire de l'Accélérateur Linéaire
4 CC-IN2P3 - Centre de Calcul de l'IN2P3
5 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand
6 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
Abstract : Searches for new heavy resonances decaying to $WW$, $WZ$, and $ZZ$ bosons are presented, using a data sample corresponding to 3.2 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector at the CERN Large Hadron Collider. Analyses selecting $\nu\nu qq$, $\ell\nu qq$, $\ell\ell qq$ and $qqqq$ final states are combined, searching for a narrow-width resonance with mass between 500 and 3000 GeV. The discriminating variable is either an invariant mass or a transverse mass. No significant deviations from the Standard Model predictions are observed. Three benchmark models are tested: a model predicting the existence of a new heavy scalar singlet, a simplified model predicting a heavy vector-boson triplet, and a bulk Randall-Sundrum model with a heavy spin-2 graviton. Cross-section limits are set at the 95% confidence level and are compared to theoretical cross-section predictions for a variety of models. The data exclude a scalar singlet with mass below 2650 GeV, a heavy vector-boson triplet with mass below 2600 GeV, and a graviton with mass below 1100 GeV. These results significantly extend the previous limits set using $pp$ collisions at $\sqrt{s}=8$ TeV.
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Journal articles
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http://hal.in2p3.fr/in2p3-01332498
Contributor : Claudine Bombar <>
Submitted on : Thursday, June 16, 2016 - 9:23:08 AM
Last modification on : Tuesday, November 5, 2019 - 4:32:43 PM

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IN2P3 | LPC-CLERMONT | LAPP | CNRS | CPPM | UNIV-SAVOIE | UNIV-AMU | LAL | PRES_CLERMONT | LPSC | UGA | UNIV-PARIS-SACLAY

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M. Aaboud, Z. Barnovska-Blenessy, N. Berger, M. Delmastro, L. Di Ciaccio, et al.. Searches for heavy diboson resonances in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector. Journal of High Energy Physics, Springer Verlag (Germany), 2016, 09, pp.173. ⟨10.1007/JHEP09(2016)173⟩. ⟨in2p3-01332498⟩

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