Würzburg 2018 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
T: Fachverband Teilchenphysik
T 51: Suche nach Physik jenseits des Standardmodels III
T 51.1: Group Report
Wednesday, March 21, 2018, 16:30–16:50, Philo-HS4
Search for single production of vector-like quarks decaying into Wb in pp collisions at √s = 13 TeV with the ATLAS detector — •Anjishnu Bandyopadhyay1, Ian Brock1, Janet Dietrich2, Heiko Lacker2, Dustin Biedermann2, Ferdinand Schenk2, Didier Alexandre2, Sergio Grancagnolo2, Tobias Kupfer3, Johannes Erdmann3, Danilo Ferreira de Lima4, and Dennis Sperlich2 — 1University of Bonn — 2Humboldt University, Berlin — 3University of Dortmund — 4University of Heidelberg
Vector-like quarks are coloured spin 1/2 fermions predicted by various Beyond the Standard Model (BSM) theories. A search for singly produced vector-like Q quarks, where Q can be either a T quark with charge +2/3 or a Y quark with charge −4/3, performed with 36.1 fb−1 of proton-proton collision data taken at the LHC at a centre-of-mass energy of 13 TeV in 2015 and 2016 recorded by the ATLAS detector will be reported in this talk. This analysis targets Q → Wb decays where the W boson decays leptonically. Here, events with one lepton and at least two jets are selected, requiring at least one b-tagged jet and at least one forward jet. The various methods and challenges encountered in this analysis will be shown in this talk. The results which are also interpreted as limits on the QWb coupling and the mixing with the Standard Model sector for a singlet T quark or a (Y,B) doublet will be presented in this talk.