TY - JOUR
T1 - Search for pair-produced vector-like quarks coupling to light quarks in the lepton plus jets final state using 13 TeV pp collisions with the ATLAS detector
AU - ATLAS Collaboration
AU - Allport, P. P.
AU - Auriol, A. D.
AU - Bellos, P.
AU - Bracinik, J.
AU - Charlton, D. G.
AU - Chisholm, A. S.
AU - Dimitrievska, A.
AU - Gonella, L.
AU - Hawkes, C. M.
AU - Hillier, S. J.
AU - Krizka, K.
AU - Liu, E. H. L.
AU - Lomas, J. D.
AU - Marinescu, M.
AU - Neep, T. J.
AU - Newman, P. R.
AU - Nikolopoulos, K.
AU - Skorda, E.
AU - Thomas, J. P.
AU - Thompson, P. D.
AU - Watson, A. T.
AU - Watson, M. F.
AU - Wu, C.
PY - 2024/9/24
Y1 - 2024/9/24
N2 - A search is presented for the pair-production of heavy vector-like quarks (VLQs) that each decay into a W boson and a light quark. This study focuses on events where one W boson decays into leptons and the other into hadrons. The search analyzed 140 fb−1 of pp collision data with √s = 13 TeV, recorded by the ATLAS detector from 2015 to 2018 during Run 2 of the Large Hadron Collider. The final state is characterized by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, multiple small-radius jets, and a single large-radius jet identified as originating from the hadronic decay of a boosted W boson. With higher center-of-mass energy and integrated luminosity than in the Run 1 search, and improved analysis tools, this analysis excludes VLQs (Q) with masses below 1530 GeV at 95% CL for the branching ratio B(Q→Wq) = 1, an improvement of 840 GeV on the previous ATLAS limit.
AB - A search is presented for the pair-production of heavy vector-like quarks (VLQs) that each decay into a W boson and a light quark. This study focuses on events where one W boson decays into leptons and the other into hadrons. The search analyzed 140 fb−1 of pp collision data with √s = 13 TeV, recorded by the ATLAS detector from 2015 to 2018 during Run 2 of the Large Hadron Collider. The final state is characterized by a high-transverse-momentum isolated electron or muon, large missing transverse momentum, multiple small-radius jets, and a single large-radius jet identified as originating from the hadronic decay of a boosted W boson. With higher center-of-mass energy and integrated luminosity than in the Run 1 search, and improved analysis tools, this analysis excludes VLQs (Q) with masses below 1530 GeV at 95% CL for the branching ratio B(Q→Wq) = 1, an improvement of 840 GeV on the previous ATLAS limit.
U2 - 10.1103/PhysRevD.110.052009
DO - 10.1103/PhysRevD.110.052009
M3 - Article
SN - 1550-7998
VL - 110
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 5
M1 - 052009
ER -