Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC $pp$ collision data at $\sqrt{s}=$ 7 and 8 TeV

G. Aad 1 Z. Barnovska 2 N. Berger 2 M. Delmastro 2 L. Di Ciaccio 2 S. Elles 2 K. Grevtsov 2 T. Guillemin 2 T. Hryn’ova 2 S. Jézéquel 2 I. Koletsou 2 R. Lafaye 2 J. Levêque 2 P. Mastrandea 2 G. Sauvage 2 E. Sauvan 2 O. Simard 2 B.H. Smart 2 T. Todorov 2 I. Wingerter-Seez 2 E. Yatsenko 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 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 V. Khachatryan M. Besançon 6 F. Couderc 6 M. Dejardin 6 D. Denegri 6 B. Fabbro 6 J.L. Faure 6 C. Favaro 6 F. Ferri S. Ganjour 6 S. Ghosh A. Givernaud 6 P. Gras 6 G. Hamel De Monchenault 6 P. Jarry 6 I. Kucher 6 E. Locci 6 M. Machet 6 J. Malcles 6 J. Rander 6 A. Rosowsky 6 M. Titov 6 A. Zghiche 6 A. Abdulsalam 7 I. Antropov 7 S. Baffioni 7 F. Beaudette 7 P. Busson 7 L. Cadamuro 7 E. Chapon 7 C. Charlot 7 O. Davignon 7 R. Granier De Cassagnac 7 M. Jo 7 S. Lisniak 7 P. Miné 7 I.N. Naranjo 7 M. Nguyen 7 C. Ochando 7 G. Ortona 7 P. Paganini 7 P. Pigard 7 S. Regnard 7 R. Salerno 7 Y. Sirois 7 T. Strebler 7 Y. Yilmaz 7 A. Zabi 7 J.-L. Agram 8 J. Andrea 8 A. Aubin 8 D. Bloch 8 J.-M. Brom 8 M. Buttignol 8 E.C. Chabert 8 N. Chanon 8 C. Collard 8 E. Conte X. Coubez 8 J.-C. Fontaine D. Gelé 8 U. Goerlach 8 A.-C. Le Bihan 8 J.A. Merlin 8 K. Skovpen 8 P. Van Hove 8 S. Beauceron 9 C. Bernet 9 G. Boudoul 9 E. Bouvier 9 C.A. Carrillo Montoya 9 R. Chierici 9 D. Contardo 9 B. Courbon 9 P. Depasse 9 H. El Mamouni 9 J. Fan 9 J. Fay 9 S. Gascon 9 M. Gouzevitch 9 G. Grenier 9 B. Ille 9 F. Lagarde 9 I.B. Laktineh 9 M. Lethuillier 9 L. Mirabito 9 A.L. Pequegnot 9 S. Perries 9 A. Popov 9 D. Sabes 9 V. Sordini 9 M. Vander Donckt 9 P. Verdier 9 S. Viret 9 M. Alstaty 1 M. Barbero 1 A. Calandri 1 T.P. Calvet 1 Y. Coadou 1 C. Diaconu 1 S. Diglio 1 F. Djama 1 V. Ellajosyula 1 L. Feligioni 1 J. Gao 1 A. Hadef 1 G.D. Hallewell 1 F. Hubaut 1 S.J. Kahn 1 E. B. F. G. Knoops 1 E. Le Guirriec 1 J. Liu 1 K. Liu 1 D. Madaffari 1 E. Monnier 1 S. Muanza 1 E. Nagy 1 P. Pralavorio 1 Y. Rodina 1 A. Rozanov 1 M. Talby 1 T. Theveneaux-Pelzer 1 R.E. Ticse Torres 1 S. Tisserant 1 J. Toth 1 F. Touchard 1 L. Vacavant 1 Chen Wang 1 S. Albrand 10 S. Berlendis 10 C. Camincher 10 J. Collot 10 S. Crépé-Renaudin 10 P.A. Delsart 10 C. Gabaldon 10 M.H. Genest 10 P.O.J. Gradin 10 J.Y. Hostachy 10 F. Ledroit-Guillon 10 A. Lleres 10 A. Lucotte 10 F. Malek 10 E. Petit 10 J. Stark 10 B. Trocmé 10 M. Wu 10
Abstract : Combined ATLAS and CMS measurements of the Higgs boson production and decay rates, as well as constraints on its couplings to vector bosons and fermions, are presented. The combination is based on the analysis of five production processes, namely gluon fusion, vector boson fusion, and associated production with a $W$ or a $Z$ boson or a pair of top quarks, and of the six decay modes $H \to ZZ, WW$, $\gamma\gamma, \tau\tau, bb$, and $\mu\mu$. All results are reported assuming a value of 125.09 GeV for the Higgs boson mass, the result of the combined measurement by the ATLAS and CMS experiments. The analysis uses the CERN LHC proton--proton collision data recorded by the ATLAS and CMS experiments in 2011 and 2012, corresponding to integrated luminosities per experiment of approximately 5 fb$^{-1}$ at $\sqrt{s}=7$ TeV and 20 fb$^{-1}$ at $\sqrt{s} = 8$ TeV. The Higgs boson production and decay rates measured by the two experiments are combined within the context of three generic parameterisations: two based on cross sections and branching fractions, and one on ratios of coupling modifiers. Several interpretations of the measurements with more model-dependent parameterisations are also given. The combined signal yield relative to the Standard Model prediction is measured to be 1.09 $\pm$ 0.11. The combined measurements lead to observed significances for the vector boson fusion production process and for the $H \to \tau\tau$ decay of $5.4$ and $5.5$ standard deviations, respectively. The data are consistent with the Standard Model predictions for all parameterisations considered.
Type de document :
Article dans une revue
Journal of High Energy Physics, Springer Verlag (Germany), 2016, 08, pp.045. 〈10.1007/JHEP08(2016)045〉
Liste complète des métadonnées

http://hal.in2p3.fr/in2p3-01328829
Contributeur : Claudine Bombar <>
Soumis le : mercredi 8 juin 2016 - 14:46:52
Dernière modification le : mardi 5 juin 2018 - 16:40:03

Lien texte intégral

Identifiants

Citation

G. Aad, Z. Barnovska, N. Berger, M. Delmastro, L. Di Ciaccio, et al.. Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC $pp$ collision data at $\sqrt{s}=$ 7 and 8 TeV. Journal of High Energy Physics, Springer Verlag (Germany), 2016, 08, pp.045. 〈10.1007/JHEP08(2016)045〉. 〈in2p3-01328829〉

Partager

Métriques

Consultations de la notice

490