Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s=13 TeV
Аутори
Sirunyan, A. M.Tumasyan, A.
Adam, W.
Ambrogi, F.
Adžić, Petar
Ćirković, Predrag
Devetak, Damir
Đorđević, Miloš
Milošević, Jovan
Milenović, Predrag
Остала ауторства
CMS CollaborationCMS Collaboration (ukupan broj autora: 2290)
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A search for dark matter produced in association with top quarks in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The data set used corresponds to an integrated luminosity of 35.9 fb −1 recorded with the CMS detector at the LHC. Whereas previous searches for neutral scalar or pseudoscalar mediators considered dark matter production in association with a top quark pair only, this analysis also includes production modes with a single top quark. The results are derived from the combination of multiple selection categories that are defined to target either the single top quark or the top quark pair signature. No significant deviations with respect to the standard model predictions are observed. The results are interpreted in the context of a simplified model in which a scalar or pseudoscalar mediator particle couples to a top quark and subsequently decays into dark matter particles. Scalar and pseudoscalar mediator particles with masses below 290 and 300 GeV, ...respectively, are excluded at 95% confidence level, assuming a dark matter particle mass of 1 GeV and mediator couplings to fermions and dark matter particles equal to unity.[Figure not available: see fulltext.]. © 2019, The Author(s).
Кључне речи:
Dark matter / Hadron-Hadron scattering (experiments) / Top physicsИзвор:
Journal of High Energy Physics, 2019, 2019, 3
DOI: 10.1007/JHEP03(2019)141
ISSN: 1126-6708
WoS: 000462971600002
Scopus: 2-s2.0-85063645926
Колекције
Институција/група
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 AU - Milenović, Predrag PY - 2019 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8125 AB - A search for dark matter produced in association with top quarks in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The data set used corresponds to an integrated luminosity of 35.9 fb −1 recorded with the CMS detector at the LHC. Whereas previous searches for neutral scalar or pseudoscalar mediators considered dark matter production in association with a top quark pair only, this analysis also includes production modes with a single top quark. The results are derived from the combination of multiple selection categories that are defined to target either the single top quark or the top quark pair signature. No significant deviations with respect to the standard model predictions are observed. The results are interpreted in the context of a simplified model in which a scalar or pseudoscalar mediator particle couples to a top quark and subsequently decays into dark matter particles. Scalar and pseudoscalar mediator particles with masses below 290 and 300 GeV, respectively, are excluded at 95% confidence level, assuming a dark matter particle mass of 1 GeV and mediator couplings to fermions and dark matter particles equal to unity.[Figure not available: see fulltext.]. © 2019, The Author(s). T2 - Journal of High Energy Physics T1 - Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s=13 TeV VL - 2019 IS - 3 DO - 10.1007/JHEP03(2019)141 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 and Milenović, Predrag", year = "2019", abstract = "A search for dark matter produced in association with top quarks in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The data set used corresponds to an integrated luminosity of 35.9 fb −1 recorded with the CMS detector at the LHC. Whereas previous searches for neutral scalar or pseudoscalar mediators considered dark matter production in association with a top quark pair only, this analysis also includes production modes with a single top quark. The results are derived from the combination of multiple selection categories that are defined to target either the single top quark or the top quark pair signature. No significant deviations with respect to the standard model predictions are observed. The results are interpreted in the context of a simplified model in which a scalar or pseudoscalar mediator particle couples to a top quark and subsequently decays into dark matter particles. Scalar and pseudoscalar mediator particles with masses below 290 and 300 GeV, respectively, are excluded at 95% confidence level, assuming a dark matter particle mass of 1 GeV and mediator couplings to fermions and dark matter particles equal to unity.[Figure not available: see fulltext.]. © 2019, The Author(s).", journal = "Journal of High Energy Physics", title = "Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s=13 TeV", volume = "2019", number = "3", doi = "10.1007/JHEP03(2019)141" }
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M., Milošević, J.,& Milenović, P.. (2019). Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s=13 TeV. in Journal of High Energy Physics, 2019(3). https://doi.org/10.1007/JHEP03(2019)141
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J, Milenović P. Search for dark matter produced in association with a single top quark or a top quark pair in proton-proton collisions at √s=13 TeV. in Journal of High Energy Physics. 2019;2019(3). doi:10.1007/JHEP03(2019)141 .
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Milošević, Jovan, Milenović, Predrag, "Search for dark matter produced in association with a single top quark or a top quark pair 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)141 . .