A search is presented for a heavy vector-like quark, decaying into a b quark and a W boson, which is produced singly in association with a light flavor quark and a b quark. The analysis is performed using a data sample of proton-proton collisions at a center-of-mass energy of root s = 13 TeV collected at the LHC in 2015. The data set used in the analysis corresponds to an integrated luminosity of 2.3 fb(-1). The search is carried out using events containing one electron or muon, at least one b-tagged jet with large transverse momentum, at least one jet in the forward region of the detector, and missing transverse momentum. No excess over the standard model prediction is observed. Upper limits are placed on the production cross section of heavy exotic quarks: a T quark with a charge of 2/3, and a Y quark with a charge of -4/3. For Y quarks with coupling of 0.5 and beta(Y - GT bW) = 100%, the observed (expected) lower mass limits are 1.40 (1.0) TeV. This is the most stringent limit to da...te on the single production of the Y vector-like quark. (C) 2017 The Author(s). Published by Elsevier B.V.
TY - JOUR
AU - Sirunyan, A. M.
AU - Adžić, Petar
AU - Ćirković, Predrag
AU - Devetak, Damir
AU - Đorđević, Miloš
AU - Milošević, Jovan
AU - Reković, Vladimir
AU - Milenović, Predrag
PY - 2017
UR - https://vinar.vin.bg.ac.rs/handle/123456789/1743
AB - A search is presented for a heavy vector-like quark, decaying into a b quark and a W boson, which is produced singly in association with a light flavor quark and a b quark. The analysis is performed using a data sample of proton-proton collisions at a center-of-mass energy of root s = 13 TeV collected at the LHC in 2015. The data set used in the analysis corresponds to an integrated luminosity of 2.3 fb(-1). The search is carried out using events containing one electron or muon, at least one b-tagged jet with large transverse momentum, at least one jet in the forward region of the detector, and missing transverse momentum. No excess over the standard model prediction is observed. Upper limits are placed on the production cross section of heavy exotic quarks: a T quark with a charge of 2/3, and a Y quark with a charge of -4/3. For Y quarks with coupling of 0.5 and beta(Y - GT bW) = 100%, the observed (expected) lower mass limits are 1.40 (1.0) TeV. This is the most stringent limit to date on the single production of the Y vector-like quark. (C) 2017 The Author(s). Published by Elsevier B.V.
T2 - Physics Letters B
T1 - Search for single production of vector-like quarks decaying into a b quark and a W boson in proton-proton collisions at root s=13 TeV
VL - 772
SP - 634
EP - 656
DO - 10.1016/j.physletb.2017.07.022
ER -
@article{
author = "Sirunyan, A. M. and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milošević, Jovan and Reković, Vladimir and Milenović, Predrag",
year = "2017",
abstract = "A search is presented for a heavy vector-like quark, decaying into a b quark and a W boson, which is produced singly in association with a light flavor quark and a b quark. The analysis is performed using a data sample of proton-proton collisions at a center-of-mass energy of root s = 13 TeV collected at the LHC in 2015. The data set used in the analysis corresponds to an integrated luminosity of 2.3 fb(-1). The search is carried out using events containing one electron or muon, at least one b-tagged jet with large transverse momentum, at least one jet in the forward region of the detector, and missing transverse momentum. No excess over the standard model prediction is observed. Upper limits are placed on the production cross section of heavy exotic quarks: a T quark with a charge of 2/3, and a Y quark with a charge of -4/3. For Y quarks with coupling of 0.5 and beta(Y - GT bW) = 100%, the observed (expected) lower mass limits are 1.40 (1.0) TeV. This is the most stringent limit to date on the single production of the Y vector-like quark. (C) 2017 The Author(s). Published by Elsevier B.V.",
journal = "Physics Letters B",
title = "Search for single production of vector-like quarks decaying into a b quark and a W boson in proton-proton collisions at root s=13 TeV",
volume = "772",
pages = "634-656",
doi = "10.1016/j.physletb.2017.07.022"
}
Sirunyan, A. M., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M., Milošević, J., Reković, V.,& Milenović, P.. (2017). Search for single production of vector-like quarks decaying into a b quark and a W boson in proton-proton collisions at root s=13 TeV. in Physics Letters B, 772, 634-656.
https://doi.org/10.1016/j.physletb.2017.07.022
Sirunyan AM, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J, Reković V, Milenović P. Search for single production of vector-like quarks decaying into a b quark and a W boson in proton-proton collisions at root s=13 TeV. in Physics Letters B. 2017;772:634-656.
doi:10.1016/j.physletb.2017.07.022 .
Sirunyan, A. M., Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Milošević, Jovan, Reković, Vladimir, Milenović, Predrag, "Search for single production of vector-like quarks decaying into a b quark and a W boson in proton-proton collisions at root s=13 TeV" in Physics Letters B, 772 (2017):634-656,
https://doi.org/10.1016/j.physletb.2017.07.022 . .
