Searches for scalar leptoquarks in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector - IN2P3 - Institut national de physique nucléaire et de physique des particules Accéder directement au contenu
Article Dans Une Revue European Physical Journal C: Particles and Fields Année : 2016

Searches for scalar leptoquarks in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector

G. Aad (1) , Z. Barnovska (2) , N. Berger (2) , M. Delmastro (2) , L. Di Ciaccio (2) , T.K.O. Doan (2) , S. Elles (2) , C. Goy (2) , T. Hryn’ova (2) , S. Jézéquel (2) , I. Koletsou (2) , R. Lafaye (2) , J. Leveque (2) , N. Massol (2) , G. Sauvage (2) , E. Sauvan (2) , O. Simard (2) , T. Todorov (2) , I. Wingerter-Seez (2) , E. Yatsenko (2) , G . Rahal (3) , L. Alio (1) , M. Barbero (1) , Y. Coadou (1) , C. Diaconu (1) , Sara Diglio (1) , F. Djama (1) , O. Duccu (1) , L. Feligioni (1) , J. Gao (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) , A. Rozanov (1) , T. Serre (1) , M. Talby (1) , R.E. Ticse Torres (1) , E. Tiouchichine (1) , S. Tisserant (1) , J. Toth (1) , F. Touchard (1) , L. Vacavant (1) , S. Albrand (4) , J. Brown (4) , J. Collot (4) , S. Crépé-Renaudin (4) , P.A. Delsart (4) , C. Gabaldon (4) , M.H. Genest (4) , J.Y. Hostachy (4) , F. Ledroit-Guillon (4) , A. Lleres (4) , A. Lucotte (4) , F. Malek (4) , C. Monini (4) , J. Stark (4) , B. Trocmé (4) , M. Wu (4) , D. Boumediene (5) , Emmanuel 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) , Timothée Theveneaux-Pelzer (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)
G. Aad
N. Berger
C. Goy
T. Hryn’ova
Y. Coadou
S. Calvet
D. Rousseau

Résumé

Searches for pair-produced scalar leptoquarks are performed using 20 fb$^{-1}$ of proton-proton collision data provided by the LHC and recorded by the ATLAS detector at $\sqrt{s}=8$ TeV. Events with two electrons (muons) and two or more jets in the final state are used to search for first (second)-generation leptoquarks. The results from two previously published ATLAS analyses are interpreted in terms of third-generation leptoquarks decaying to $b\nu_{\tau}\bar{b}\bar{\nu_{\tau}}$ and $t\nu_{\tau}\bar{t}\bar{\nu_{\tau}}$ final states. No statistically significant excess above the Standard Model expectation is observed in any channel and scalar leptoquarks are excluded at 95% CL with masses up to $m_{\mathrm{LQ1}}$ < 1050 GeV for first-generation leptoquarks, $m_{\mathrm{LQ2}}$ < 1000 GeV for second-generation leptoquarks, $m_{\mathrm{LQ3}} < $ 625 GeV for third-generation leptoquarks in the $b\nu_{\tau}\bar{b}\bar{\nu_{\tau}}$ channel, and 200 $< m_{\mathrm{LQ3}} < $ 640 GeV in the $t\nu_{\tau}\bar{t}\bar{\nu_{\tau}}$ channel.

Dates et versions

in2p3-01185532 , version 1 (20-08-2015)

Identifiants

Citer

G. Aad, Z. Barnovska, N. Berger, M. Delmastro, L. Di Ciaccio, et al.. Searches for scalar leptoquarks in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector. European Physical Journal C: Particles and Fields, 2016, 76, pp.5. ⟨10.1140/epjc/s10052-015-3823-9⟩. ⟨in2p3-01185532⟩
40 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More