Measurement of the $ZZ$ production cross section in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the $ZZ\to\ell^{-}\ell^{+}\ell^{\prime -}\ell^{\prime +}$ and $ZZ\to\ell^{-}\ell^{+}\nu\bar{\nu}$ channels with the ATLAS detector

M. Aaboud; N. Berger; M. Delmastro; L. Di Ciaccio; S. Elles; K. Grevtsov; T. Guillemin; T. Hryn’ova; S. Jézéquel; I. Koletsou; R. Lafaye; J. Levêque; P. Mastrandea; E. Sauvan; B.H. Smart; T. Todorov; I. Wingerter-Seez; E. Yatsenko; D. Boumediene; E. Busato; D. Calvet; S. Calvet; A.R. Chomont; J. Donini; Ph. Gris; R. Madar; D. Pallin; S.M. Romano Saez; C. Santoni; F. Vazeille; G. Aad; M. Alstaty; M. Barbero; A. Calandri; T.P. Calvet; Y. Coadou; C. Diaconu; F. Djama; V. Ellajosyula; L. Feligioni; A. Hadef; G.D. Hallewell; F. Hubaut; S.J. Kahn; E. B. F. G. Knoops; E. Le Guirriec; J. Liu; K. Liu; D. Madaffari; E. Monnier; S. Muanza; E. Nagy; P. Pralavorio; Y. Rodina; A. Rozanov; M. Talby; T. Theveneaux-Pelzer; R.E. Ticse Torres; S. Tisserant; J. Toth; F. Touchard; L. Vacavant; Chen Wang; S. Albrand; S. Berlendis; A. Bethani; C. Camincher; J. Collot; S. Crépé-Renaudin; P.A. Delsart; C. Gabaldon; M.H. Genest; P.O.J. Gradin; J.Y. Hostachy; F. Ledroit-Guillon; A. Lleres; A. Lucotte; F. Malek; E. Petit; J. Stark; B. Trocmé; M. Wu; G. Rahal

doi:10.1007/JHEP01(2017)099

Measurement of the $ZZ$ production cross section in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the $ZZ\to\ell^{-}\ell^{+}\ell^{\prime -}\ell^{\prime +}$ and $ZZ\to\ell^{-}\ell^{+}\nu\bar{\nu}$ channels with the ATLAS detector

M. Aaboud 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 J. Levêque ¹ P. Mastrandea ¹ E. Sauvan ¹ B.H. Smart ¹ T. Todorov ¹ I. Wingerter-Seez ¹ E. Yatsenko ¹ D. Boumediene ² E. Busato ² D. Calvet ² S. Calvet ² A.R. Chomont ² J. Donini ² Ph. Gris ² R. Madar ² D. Pallin ² S.M. Romano Saez ² C. Santoni ² F. Vazeille ² G. Aad ³ M. Alstaty ³ M. Barbero ³ A. Calandri ³ T.P. Calvet ³ Y. Coadou ³ C. Diaconu ³ F. Djama ³ V. Ellajosyula ³ L. Feligioni ³ A. Hadef ³ G.D. Hallewell ³ F. Hubaut ³ S.J. Kahn ³ E. B. F. G. Knoops ³ E. Le Guirriec ³ J. Liu ³ K. Liu ³ D. Madaffari ³ E. Monnier ³ S. Muanza ³ E. Nagy ³ P. Pralavorio ³ Y. Rodina ³ A. Rozanov ³ M. Talby ³ T. Theveneaux-Pelzer ³ R.E. Ticse Torres ³ S. Tisserant ³ J. Toth ³ F. Touchard ³ L. Vacavant ³ Chen Wang ³ S. Albrand ⁴ S. Berlendis ⁴ A. Bethani ⁴ C. Camincher ⁴ J. Collot ⁴ S. Crépé-Renaudin ⁴ P.A. Delsart ⁴ C. Gabaldon ⁴ M.H. Genest ⁴ P.O.J. Gradin ⁴ J.Y. Hostachy ⁴ F. Ledroit-Guillon ⁴ A. Lleres ⁴ A. Lucotte ⁴ F. Malek ⁴ E. Petit ⁴ J. Stark ⁴ B. Trocmé ⁴ M. Wu ⁴ G. Rahal ⁵

1 LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules - Laboratoire d'Annecy de Physique des Particules

2 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

3 CPPM - Centre de Physique des Particules de Marseille

4 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

5 CC-IN2P3 - Centre de Calcul de l'IN2P3

Abstract : A measurement of the $ZZ$ production in the $\ell^{-}\ell^{+}\ell^{\prime -}\ell^{\prime +}$ and $\ell^{-}\ell^{+}\nu\bar{\nu}$ channels $(\ell = e, \mu)$ in proton--proton collisions at $\sqrt{s} = 8$ TeV at the Large Hadron Collider at CERN, using data corresponding to an integrated luminosity of 20.3 fb$^{-1}$ collected by the ATLAS experiment in 2012 is presented. The fiducial cross sections for $ZZ\to\ell^{-}\ell^{+}\ell^{\prime -}\ell^{\prime +}$ and $ZZ\to \ell^{-}\ell^{+}\nu\bar{\nu}$ are measured in selected phase-space regions. The total cross section for $ZZ$ events produced with both $Z$ bosons in the mass range 66 to 116 GeV is measured from the combination of the two channels to be $7.3\pm0.4\textrm{(stat)}\pm0.3\textrm{(syst)}\pm0.2\textrm{(lumi)}$ pb, which is consistent with the Standard Model prediction of $6.6^{+0.7}_{-0.6}$ pb. The differential cross sections in bins of various kinematic variables are presented. The differential event yield as a function of the transverse momentum of the leading $Z$ boson is used to set limits on anomalous neutral triple gauge boson couplings in $ZZ$ production.

Type de document :

Article dans une revue

Journal of High Energy Physics, Springer Verlag (Germany), 2017, 01, pp.099. 〈10.1007/JHEP01(2017)099〉

Domaine :

Physique [physics] / Physique des Hautes Energies - Expérience [hep-ex]

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http://hal.in2p3.fr/in2p3-01388543
Contributeur : Claudine Bombar <>
Soumis le : jeudi 27 octobre 2016 - 11:03:58
Dernière modification le : lundi 9 avril 2018 - 12:22:08

Measurement of the $ZZ$ production cross section in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the $ZZ\to\ell^{-}\ell^{+}\ell^{\prime -}\ell^{\prime +}$ and $ZZ\to\ell^{-}\ell^{+}\nu\bar{\nu}$ channels with the ATLAS detector

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Measurement of the $ZZ$ production cross section in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the $ZZ\to\ell^{-}\ell^{+}\ell^{\prime -}\ell^{\prime +}$ and $ZZ\to\ell^{-}\ell^{+}\nu\bar{\nu}$ channels with the ATLAS detector

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