A search for top squarks with R-parity-violating decays to all-hadronic final states with the ATLAS detector in $\sqrt{s}$ = 8 TeV proton-proton collisions

G. Aad; S. Albrand; C. Camincher; J. Collot; S. Crépé-Renaudin; P.A. Delsart; C. Gabaldon; M.H. Genest; J.Y. Hostachy; F. Ledroit-Guillon; A. Lleres; A. Lucotte; F. Malek; E. Petit; J. Stark; B. Trocmé; M. Wu; G. Rahal; Z. Barnovska; N. Berger; M. Delmastro; L. Di Ciaccio; S. Elles; K. Grevtsov; T. Hryn’ova; S. Jézéquel; I. Koletsou; R. Lafaye; J. Levêque; N. Massol; P. Mastrandea; G. Sauvage; E. Sauvan; O. Simard; T. Todorov; I. Wingerter-Seez; E. Yatsenko; L. Alio; M. Barbero; A. Calandri; T.P. Calvet; Y. Coadou; C. Diaconu; S. Diglio; F. Djama; O. Duccu; V. Ellajosyula; L. Feligioni; J. Gao; A. Hadef; G.D. Hallewell; F. Hubaut; S.J. Kahn; E. B. F. G. Knoops; E. Le Guirriec; J. Liu; K. Liu; D. Madaffari; K. Mochizuki; E. Monnier; S. Muanza; Y. Nagai; E. Nagy; P. Pralavorio; Y. Rodina; A. Rozanov; M. Talby; T. Theveneaux-Pelzer; R.E. Ticse Torres; E. Tiouchichine; S. Tisserant; J. Toth; F. Touchard; L. Vacavant; Chen Wang; D. Boumediene; E. Busato; D. Calvet; S. Calvet; J. Donini; E. Dubreuil; G. Gilles; Ph. Gris; H. Liao; R. Madar; D. Pallin; S.M. Romano Saez; C. Santoni; D. Simon; F. Vazeille; M.K. Ayoub; A. Bassalat; C. Bécot; S. Binet; C. Bourdarios; D. Delgove; J-B. de Vivie De Regie; L. Duflot; M. Escalier; L. Fayard; D. Fournier; E.L. Gkougkousis; J-F. Grivaz; T. Guillemin; F. Hariri; S. Henrot-Versille; J. Hrivnac; L. Iconomidou-Fayard; M. Kado; A. Lounis; N. Makovec; N. Morange; C. Nellist; P. Petroff; L. Poggioli; P. Puzo; A. Renaud; D. Rousseau; G. Rybkin; A.C. Schaffer; E. Scifo; L. Serin; S. Simion; R. Tanaka; D. Zerwas; Zhongkai Zhang; Y. Zhao

doi:10.1007/JHEP06(2016)067

A search for top squarks with R-parity-violating decays to all-hadronic final states with the ATLAS detector in $\sqrt{s}$ = 8 TeV proton-proton collisions

G. Aad ¹ S. Albrand ² C. Camincher ² J. Collot ² S. Crépé-Renaudin ² P.A. Delsart ² C. Gabaldon ² M.H. Genest ² J.Y. Hostachy ² F. Ledroit-Guillon ² A. Lleres ² A. Lucotte ² F. Malek ² E. Petit ² J. Stark ² B. Trocmé ² M. Wu ² G. Rahal ³ Z. Barnovska ⁴ N. Berger M. Delmastro ⁴ L. Di Ciaccio ⁴ S. Elles ⁴ K. Grevtsov ⁴ T. Hryn’ova ⁴ S. Jézéquel ⁴ I. Koletsou ⁴ R. Lafaye ⁴ J. Levêque ⁴ N. Massol ⁴ P. Mastrandea ⁴ G. Sauvage ⁴ E. Sauvan ⁴ O. Simard ⁴ T. Todorov ⁴ I. Wingerter-Seez ⁴ E. Yatsenko ⁴ L. Alio ¹ M. Barbero ¹ A. Calandri ¹ T.P. Calvet ¹ Y. Coadou ¹ C. Diaconu ¹ S. Diglio ¹ F. Djama ¹ O. Duccu 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 K. Mochizuki ¹ E. Monnier ¹ S. Muanza ¹ Y. Nagai 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 E. Tiouchichine ¹ S. Tisserant ¹ J. Toth ¹ F. Touchard ¹ L. Vacavant ¹ Chen Wang ¹ D. Boumediene ⁵ E. Busato ⁵ D. Calvet ⁵ S. Calvet ⁵ J. Donini ⁵ E. Dubreuil ⁵ G. Gilles ⁵ Ph. Gris ⁵ H. Liao ⁵ R. Madar ⁵ D. Pallin ⁵ S.M. Romano Saez ⁵ C. Santoni ⁵ D. Simon ⁵ F. Vazeille ⁵ M.K. Ayoub ⁶ A. Bassalat ⁶ C. Bécot ⁶ S. Binet ⁶ C. Bourdarios ⁶ D. Delgove ⁶ J-B. de Vivie De Regie ⁶ L. Duflot ⁶ M. Escalier ⁶ L. Fayard ⁶ D. Fournier ⁶ E.L. Gkougkousis ⁶ J-F. Grivaz ⁶ T. Guillemin ⁶ F. Hariri ⁶ S. Henrot-Versille ⁶ J. Hrivnac ⁶ L. Iconomidou-Fayard ⁶ M. Kado ⁶ A. Lounis ⁶ N. Makovec ⁶ N. Morange ⁶ C. Nellist ⁶ P. Petroff ⁶ L. Poggioli ⁶ P. Puzo ⁶ A. Renaud ⁶ D. Rousseau ⁶ G. Rybkin ⁶ A.C. Schaffer ⁶ E. Scifo ⁶ L. Serin ⁶ S. Simion ⁶ R. Tanaka ⁶ D. Zerwas ⁶ Zhongkai Zhang ⁶ Y. Zhao ⁶

1 CPPM - Centre de Physique des Particules de Marseille

2 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

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

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

5 LPC - Laboratoire de Physique Corpusculaire - Clermont-Ferrand

6 LAL - Laboratoire de l'Accélérateur Linéaire

Abstract : A search for the pair production of top squarks, each with R-parity-violating decays into two Standard Model quarks, is performed using 17.4 fb$^{-1}$ of $\sqrt{s}$ = 8 TeV proton-proton collision data recorded by the ATLAS experiment at the LHC. Each top squark is assumed to decay to a b- and an s-quark, leading to four quarks in the final state. Background discrimination is achieved with the use of b-tagging and selections on the mass and substructure of large-radius jets, providing sensitivity to top squark masses as low as 100 GeV. No evidence of an excess beyond the Standard Model background prediction is observed and top squarks decaying to $\bar{b}\bar{s}$ are excluded for top squark masses in the range $100 \leq m_{\tilde{t}} \leq 315$ GeV at 95% confidence level.

Type de document :

Article dans une revue

Journal of High Energy Physics, Springer Verlag (Germany), 2016, 06, pp.067. 〈10.1007/JHEP06(2016)067〉

Domaine :

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

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http://hal.in2p3.fr/in2p3-01265314
Contributeur : Emmanuelle Vernay <>
Soumis le : lundi 1 février 2016 - 08:06:23
Dernière modification le : mardi 24 juillet 2018 - 15:46:14

A search for top squarks with R-parity-violating decays to all-hadronic final states with the ATLAS detector in $\sqrt{s}$ = 8 TeV proton-proton collisions

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A search for top squarks with R-parity-violating decays to all-hadronic final states with the ATLAS detector in $\sqrt{s}$ = 8 TeV proton-proton collisions

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