Search for Higgs and $Z$ Boson Decays to $\phi\,\gamma$ with the ATLAS Detector

M. Aaboud G. Aad 1 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 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 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 D. Simon 2 F. Vazeille 2 Z. Barnovska 3 N. Berger 3 M. Delmastro 3 L. Di Ciaccio 3 S. Elles 3 K. Grevtsov 3 T. Hryn’ova 3 S. Jézéquel 3 I. Koletsou 3 R. Lafaye 3 Jérémy Lévêque 3 P. Mastrandea 3 G. Sauvage 3 E. Sauvan 3 O. Simard 3 T. Todorov 3 I. Wingerter-Seez 3 E. Yatsenko 3 M.K. Ayoub 4 A. Bassalat 4 S. Binet 2 C. Becot C. Bourdarios 4 J.B. de Vivie De Regie 4 D. Delgove 4 L. Duflot 4 M. Escalier 4 L. Fayard 4 D. Fournier 4 E.L. Gkougkousis 4 J.-F. Grivaz 4 T. Guillemin 4 F. Hariri 4 S. Henrot-Versille 4 J. Hrivnac 4 L. Iconomidou-Fayard 4 M. Kado 4 A. Lounis 4 N. Makovec 4 N. Morange 4 C. Nellist 4 P. Petroff 4 L. Poggioli 4 P. Puzo 4 A. Renaud 4 G. Rybkin 4 D. Rousseau 4 A.C. Schaffer 4 L. Serin 4 E. Scifo 4 S. Simion 4 R. Tanaka 4 D. Zerwas 4 Zhongkai Zhang 4 Y. Zhao 4 G. Rahal 5 S. Albrand 6 S. Berlendis 6 A. Bethani 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
Abstract : A search for the decays of the Higgs and $Z$ bosons to a $\phi$ meson and a photon is performed with a $pp$ collision data sample corresponding to an integrated luminosity of 2.7 fb$^{-1}$ collected at $\sqrt{s}=$13 TeV with the ATLAS detector at the LHC. No significant excess of events is observed above the background, and 95% confidence level upper limits on the branching fractions of the Higgs and $Z$ boson decays to $\phi\,\gamma$ of 1.4$\times$10$^{-3}$ and 8.3$\times$10$^{-6}$, respectively, are obtained.
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M. Aaboud, G. Aad, M. Alstaty, M. Barbero, A. Calandri, et al.. Search for Higgs and $Z$ Boson Decays to $\phi\,\gamma$ with the ATLAS Detector. Physical Review Letters, American Physical Society, 2016, 117, pp.111802. ⟨10.1103/PhysRevLett.117.111802⟩. ⟨in2p3-01345005⟩

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