Skip to Main content Skip to Navigation
Journal articles

Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at $\sqrt{s}=8$ TeV with ATLAS

G. Aad 1 L. Alio 1 M. Barbero 1 C. Bertella 1 Lin Chen 1 J. C. Clemens 1 Y. Coadou 1 S. 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 N. 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 S. Abdel Khalek 2 A. Bassalat 2 C. Becot 2 S. Binet 2 C. Bourdarios 2 D. Charfeddine 2 J. B. de Vivie de Regie 2 L. Duflot 2 M. Escalier 2 L. Fayard 2 D. Fournier 2 J.-F. Grivaz 2 T. Guillemin 2 F. Hariri 2 S. Henrot-Versille 2 J. Hrivnac 2 L. Iconomidou-Fayard 2 M. Kado 2 Y. Li 2 A. Lounis 2 N. Makovec 2 L. Poggioli 2 P. Puzo 2 A. Renaud 2 D. Rousseau 2 G. Rybkin 2 A.C. Schaffer 2 E. Scifo 2 L. Serin 2 S. Simion 2 R. Tanaka 2 H.L. Tran 2 D. Zerwas 2 Zhiqing Zhang 2 S. Albrand 3 J. Brown 3 J. Collot 3 S. Crépé-Renaudin 3 B. Dechenaux 3 P.A. Delsart 3 C. Gabaldon 3 M.H. Genest 3 J.Y. Hostachy 3 F. Ledroit-Guillon 3 A. Lleres 3 A. Lucotte 3 F. Malek 3 C. Monini 3 J. Stark 3 B. Trocmé 3 M. Wu 3 L. Aperio Bella 4 Z. Barnovska 4 N. Berger 4 M. Delmastro 4 L. Di Ciaccio 4 T. K. O. Doan 4 M. El Kacimi 4 S. Elles 4 C. Goy 4 T. Hryn’ova 4 S. Jézéquel 4 H. Keoshkerian 4 I. Koletsou 4 R. Lafaye 4 Jérémy Lévêque 4 V.P. Lombardo 4 N. Massol 4 H. Przysiezniak 4 G. Sauvage 4 E. Sauvan 4 M. Schwoerer 4 O. Simard 4 T. Todorov 4 I. Wingerter-Seez 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 D. Lacour 5 B. Laforge 5 S. Laplace 5 O. Le Dortz 5 G. Lefebvre 5 K. Liu 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 G. Rahal 6 D. Boumediene 7 Emmanuel Busato 7 D. Calvet 7 S. Calvet 7 J. Donini 7 E. Dubreuil 7 N. Ghodbane 7 G. Gilles 7 Ph. Gris 7 C. Guicheney 7 H. Liao 7 D. Pallin 7 Daniela Paredes Hernández 7 F. Podlyski 7 C. Santoni 7 Timothée Theveneaux-Pelzer 7 Loïc Valery 7 F. Vazeille 7 H. Bachacou 8 F. Balli 8 F. Bauer 8 N. Besson 8 J.-B. Blanchard 8 M. Boonekamp 8 A. Calandri 8 L. Chevalier 8 M. Dano Hoffmann 8 F. Deliot 8 J. Ernwein 8 A.I. Etienvre 8 A. Formica 8 P.F. Giraud 8 J. Goncalves Pinto Firmino da Costa 8 H.M.X. Grabas 8 C. Guyot 8 R. Hanna 8 S. Hassani 8 W. Kozanecki 8 E. Lanccon 8 J.F. Laporte 8 C. Maiani 8 P. Mal 8 B. Mansoulie 8 H. Martinez 8 N. Meric 8 J-P. Meyer 8 R. Nicolaidou 8 A. Ouraou 8 E. Protopapadaki 8 C.R. Royon 8 L. Schoeffel 8 Ph. Schune 8 Ph. Schwemling 8 J. Schwindling 8 D. Tsionou 8 N. Vranjes 8 M. Xiao 8
Abstract : Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=8$ TeV. The analysis is performed in the $H \rightarrow \gamma\gamma$ decay channel using 20.3 fb$^{-1}$ of data recorded by the ATLAS experiment at the CERN Large Hadron Collider. The signal is extracted using a fit to the diphoton invariant mass spectrum assuming that the width of the resonance is much smaller than the experimental resolution. The signal yields are corrected for the effects of detector inefficiency and resolution. The $pp\rightarrow H \rightarrow \gamma\gamma$ fiducial cross section is measured to be $43.2 \pm 9.4 (stat) {}^{+3.2}_{-2.9} (syst) \pm 1.2 (lumi)$ fb for a Higgs boson of mass 125.4 GeV decaying to two isolated photons that have transverse momentum greater than 35% and 25% of the diphoton invariant mass and each with absolute pseudorapidity less than 2.37. Four additional fiducial cross sections and two cross-section limits are presented in phase space regions that test the theoretical modelling of different Higgs boson production mechanisms, or are sensitive to physics beyond the Standard Model. Differential cross sections are also presented, as a function of variables related to the diphoton kinematics and the jet activity produced in the Higgs boson events. The observed spectra are statistically limited but broadly in line with the theoretical expectations.
Document type :
Journal articles
Complete list of metadatas

http://hal.in2p3.fr/in2p3-01024998
Contributor : Emmanuelle Vernay <>
Submitted on : Thursday, July 17, 2014 - 8:14:51 AM
Last modification on : Thursday, February 25, 2021 - 10:58:33 AM

Links full text

Identifiers

Citation

G. Aad, L. Alio, M. Barbero, C. Bertella, Lin Chen, et al.. Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at $\sqrt{s}=8$ TeV with ATLAS. Journal of High Energy Physics, Springer Verlag (Germany), 2014, 09, pp.112. ⟨10.1007/JHEP09(2014)112⟩. ⟨in2p3-01024998⟩

Share

Metrics

Record views

1160