Search for heavy neutrinos and third-generation leptoquarks in hadronic states of two τ leptons and two jets in proton-proton collisions at √s=13 TeV
Autori
Sirunyan, A. M.Tumasyan, A.
Adam, W.
Ambrogi, F.
Adžić, Petar
Ćirković, Predrag
Devetak, Damir
Đorđević, Miloš
Milošević, Jovan
Ostala autorstva
CMS CollaborationCMS Collaboration (ukupan broj autora: 2293)
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
A search for new particles has been conducted using events with two high transverse momentum τ leptons that decay hadronically and at least two energetic jets. The analysis is performed using data from proton-proton collisions at s=13 TeV, collected by the CMS experiment at the LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb −1 . The observed data are consistent with standard model expectations. The results are interpreted in the context of two physics models. The first model involves right-handed charged bosons, W R , that decay to heavy right-handed Majorana neutrinos, N ℓ (ℓ = e, μ, τ), arising in a left-right symmetric extension of the standard model. The model considers that N e and N μ are too heavy to be detected at the LHC. Assuming that the N τ mass is half of the W R mass, masses of the W R boson below 3.50 TeV are excluded at 95% confidence level. Exclusion limits are also presented considering different scenarios for the mass ratio between N τ and W R ,... as a function of W R mass. In the second model, pair production of third-generation scalar leptoquarks that decay into ττbb is considered, resulting in an observed exclusion region with leptoquark masses below 1.02 TeV, assuming a 100% branching fraction for the leptoquark decay to a τ lepton and a bottom quark. These results represent the most stringent limits to date on these models.[Figure not available: see fulltext.]. © 2019, The Author(s).
Izvor:
Journal of High Energy Physics, 2019, 2019, 3
DOI: 10.1007/JHEP03(2019)170
ISSN: 1126-6708
WoS: 000463074600001
Scopus: 2-s2.0-85063902132
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Sirunyan, A. M. AU - Tumasyan, A. AU - Adam, W. AU - Ambrogi, F. AU - Adžić, Petar AU - Ćirković, Predrag AU - Devetak, Damir AU - Đorđević, Miloš AU - Milošević, Jovan PY - 2019 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8146 AB - A search for new particles has been conducted using events with two high transverse momentum τ leptons that decay hadronically and at least two energetic jets. The analysis is performed using data from proton-proton collisions at s=13 TeV, collected by the CMS experiment at the LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb −1 . The observed data are consistent with standard model expectations. The results are interpreted in the context of two physics models. The first model involves right-handed charged bosons, W R , that decay to heavy right-handed Majorana neutrinos, N ℓ (ℓ = e, μ, τ), arising in a left-right symmetric extension of the standard model. The model considers that N e and N μ are too heavy to be detected at the LHC. Assuming that the N τ mass is half of the W R mass, masses of the W R boson below 3.50 TeV are excluded at 95% confidence level. Exclusion limits are also presented considering different scenarios for the mass ratio between N τ and W R , as a function of W R mass. In the second model, pair production of third-generation scalar leptoquarks that decay into ττbb is considered, resulting in an observed exclusion region with leptoquark masses below 1.02 TeV, assuming a 100% branching fraction for the leptoquark decay to a τ lepton and a bottom quark. These results represent the most stringent limits to date on these models.[Figure not available: see fulltext.]. © 2019, The Author(s). T2 - Journal of High Energy Physics T1 - Search for heavy neutrinos and third-generation leptoquarks in hadronic states of two τ leptons and two jets in proton-proton collisions at √s=13 TeV VL - 2019 IS - 3 DO - 10.1007/JHEP03(2019)170 ER -
@article{ author = "Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milošević, Jovan", year = "2019", abstract = "A search for new particles has been conducted using events with two high transverse momentum τ leptons that decay hadronically and at least two energetic jets. The analysis is performed using data from proton-proton collisions at s=13 TeV, collected by the CMS experiment at the LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb −1 . The observed data are consistent with standard model expectations. The results are interpreted in the context of two physics models. The first model involves right-handed charged bosons, W R , that decay to heavy right-handed Majorana neutrinos, N ℓ (ℓ = e, μ, τ), arising in a left-right symmetric extension of the standard model. The model considers that N e and N μ are too heavy to be detected at the LHC. Assuming that the N τ mass is half of the W R mass, masses of the W R boson below 3.50 TeV are excluded at 95% confidence level. Exclusion limits are also presented considering different scenarios for the mass ratio between N τ and W R , as a function of W R mass. In the second model, pair production of third-generation scalar leptoquarks that decay into ττbb is considered, resulting in an observed exclusion region with leptoquark masses below 1.02 TeV, assuming a 100% branching fraction for the leptoquark decay to a τ lepton and a bottom quark. These results represent the most stringent limits to date on these models.[Figure not available: see fulltext.]. © 2019, The Author(s).", journal = "Journal of High Energy Physics", title = "Search for heavy neutrinos and third-generation leptoquarks in hadronic states of two τ leptons and two jets in proton-proton collisions at √s=13 TeV", volume = "2019", number = "3", doi = "10.1007/JHEP03(2019)170" }
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M.,& Milošević, J.. (2019). Search for heavy neutrinos and third-generation leptoquarks in hadronic states of two τ leptons and two jets in proton-proton collisions at √s=13 TeV. in Journal of High Energy Physics, 2019(3). https://doi.org/10.1007/JHEP03(2019)170
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J. Search for heavy neutrinos and third-generation leptoquarks in hadronic states of two τ leptons and two jets in proton-proton collisions at √s=13 TeV. in Journal of High Energy Physics. 2019;2019(3). doi:10.1007/JHEP03(2019)170 .
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Milošević, Jovan, "Search for heavy neutrinos and third-generation leptoquarks in hadronic states of two τ leptons and two jets in proton-proton collisions at √s=13 TeV" in Journal of High Energy Physics, 2019, no. 3 (2019), https://doi.org/10.1007/JHEP03(2019)170 . .