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Search for new particles in events with one lepton and missing transverse momentum in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector

G. Aad 1 L. Alio 1 M. Barbero 1 C. Bertella 1 J. C. Clémens 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. Rozanov 1 T. Serre 1 M. Talby 1 N. Tannoury 1 E. Tiouchichine 1 S. Tisserant 1 J. Toth 1 F. Touchard 1 M. Ughetto 1 L. Vacavant 1 D. Boumediene 2 Emmanuel Busato 2 D. Calvet 2 S. Calvet 2 J. Donini 2 E. Dubreuil 2 N. Ghodbane 2 G. Gilles 2 Ph. Gris 2 C. Guicheney 2 H. Liao 2 D. Pallin 2 Daniela Paredes Hernández 2 F. Podlyski 2 C. Santoni 2 Timothée Theveneaux-Pelzer 2 Loïc Valery 2 F. Vazeille 2 T. Beau 3 M. Bomben 3 G. Calderini 3 F. Crescioli 3 O. Davignon 3 S. de Cecco 3 A. Demilly 3 F. Derue 3 P. Francavilla 3 M.W. Krasny 3 D. Lacour 3 B. Laforge 3 S. Laplace 3 O. Le Dortz 3 G. Lefebvre 3 B. Malaescu 3 G. Marchiori 3 I. Nikolic-Audit 3 J. Ocariz 3 S. Pires 3 M. Ridel 3 L. Roos 3 S. Trincaz-Duvoid 3 F. Vannucci 3 D. Varouchas 3 H. Bachaou 4 F. Balli 4 F. Bauer 4 N. Besson 4 J.-B. Blanchard 4 M. Boonekamp 4 A. Calandri 4 L. Chevalier 4 M. Dano Hoffmann 4 F. Deliot 4 J. Ernwein 4 A.I. Etienvre 4 A. Formica 4 P.F. Giraud 4 J. Goncalves Pinto Firmino da Costa 4 H.M.X. Grabas 4 C. Guyot 4 R. Hanna 4 S. Hassani 4 W. Kozanecki 4 E. Lancon 4 J.F. Laporte 4 C. Maiani 4 P. Mal 4 B. Mansoulie 4 H. Martinez 4 N. Meric 4 J.-P. Meyer 4 R. Nicolaidou 4 A. Ouraou 4 E. Protopapadaki 4 C.R. Royon 4 L. L. Schoffel 4 Ph. Schune 4 Ph. Schwemling 4 J. Schwindling 4 D. Tsionou 4 N. Vranjes 4 M. Xiao 4 G. Rahal 5 N. Berger 6 M. Delmastro 6 L. Di Ciaccio 6 T.K.O. Doan 6 S. Elles 6 C. Goy 6 T. Hryn'Ova 6 S. Jézéquel 6 H. Keoshkerian 6 I. Koletsou 6 R. Lafaye 6 J. Leveque 6 V.P. Lombardo 6 N. Massol 6 H. Przysiezniak 6 G. Sauvage 6 E. Sauvan 6 M. Schwoerer 6 O. Simard 6 T. Todorov 6 I. Wingerter-Seez 6 S. Abdel Khalek 7 A. Bassalat 7 C. Becot 7 S. Binet 7 C. Bourdarios 7 D. Charfeddine 7 J.B. de Vivie de Regie 7 L. Duflot 7 M. Escalier 7 L. Fayard 7 D. Fournier 7 J.-F. Grivaz 7 T. Guillemin 7 F. Hariri 7 S. Henrot-Versillé 7 J. Hrivnac 7 L. Iconomidou-Fayard 7 M. Kado 7 A. Lounis 7 N. Makovec 7 L. Poggioli 7 P. Puzo 7 A. Renaud 7 D. Rousseau 7 G. Rybkin 7 A.C. Schaffer 7 E. Scifo 7 L. Serin 7 S. Simion 7 R. Tanaka 7 H.L. Tran 7 D. Zerwas 7 Zhiqing Zhang 7 S. Albrand 8 J. Brown 8 J. Collot 8 S. Crépé-Renaudin 8 B. Dechenaux 8 P.A. Delsart 8 C. Gabaldon 8 M.H. Genest 8 J.Y. Hostachy 8 B.T. Le 8 F. Ledroit-Guillon 8 A. Lleres 8 A. Lucotte 8 F. Malek 8 C. Monini 8 J. Stark 8 B. Trocmé 8 M. Wu 8
Abstract : This paper presents a search for new particles in events with one lepton (electron or muon) and missing transverse momentum using 20.3 $fb^{-1}$ of proton-proton collision data at $\sqrt{s}=8$ TeV recorded by the ATLAS experiment at the Large Hadron Collider. No significant excess beyond Standard Model expectations is observed. A $W'$ with Sequential Standard Model couplings is excluded at the 95% confidence level for masses up to 3.24 TeV. Excited chiral bosons ($W^{*}$) with equivalent coupling strengths are excluded for masses up to 3.21 TeV. In the framework of an effective field theory limits are also set on the dark matter-nucleon scattering cross-section as well as the mass scale $M_{*}$ of the unknown mediating interaction for dark matter pair production in association with a leptonically decaying $W$.
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http://hal.in2p3.fr/in2p3-01052862
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Submitted on : Tuesday, July 29, 2014 - 9:01:50 AM
Last modification on : Thursday, November 26, 2020 - 3:39:06 PM

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G. Aad, L. Alio, M. Barbero, C. Bertella, J. C. Clémens, et al.. Search for new particles in events with one lepton and missing transverse momentum in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector. Journal of High Energy Physics, Springer, 2014, 09, pp.037. ⟨10.1007/JHEP09(2014)037⟩. ⟨in2p3-01052862⟩

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