Observation of electroweak production of Wγ with two jets in proton-proton collisions at TeV
Аутори
Sirunyan, A. M.Tumasyan, A.
Adam, W.
Ambrogi, F.
Bergauer, T.
Adžić, Petar
Ćirković, Predrag
Đorđević, Miloš
Milenović, Predrag
Milošević, Jovan
Остала ауторства
CMS CollaborationЧланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A first observation is presented for the electroweak production of a W boson, a photon, and two jets in proton-proton collisions. The W boson decays are selected by requiring one identified electron or muon and an imbalance in transverse momentum. The two jets are required to have a high dijet mass and a large separation in pseudorapidity. The measurement is based on data collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The observed (expected) significance for this process is 4.9 (4.6) standard deviations. After combining with previously reported CMS results at 8 TeV, the observed (expected) significance is 5.3 (4.8) standard deviations. The cross section for the electroweak Wγjj production in a restricted fiducial region is measured as 20.4±4.5fb and the total cross section for Wγ production in association with 2 jets in the same fiducial region is 108±16fb. All results are in good agreement with recent theor...etical predictions. Constraints are placed on anomalous quartic gauge couplings in terms of dimension-8 effective field theory operators.
Извор:
Physics Letters B, 2020, 811 C, 135988-Напомена:
- CMS Collaboration (ukupan broj autora: 2362)
DOI: 10.1016/j.physletb.2020.135988
ISSN: 0370-2693
WoS: 000599859900022
Scopus: 2-s2.0-85098720639
Колекције
Институција/група
VinčaTY - JOUR AU - Sirunyan, A. M. AU - Tumasyan, A. AU - Adam, W. AU - Ambrogi, F. AU - Bergauer, T. AU - Adžić, Petar AU - Ćirković, Predrag AU - Đorđević, Miloš AU - Milenović, Predrag AU - Milošević, Jovan PY - 2020 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8918 AB - A first observation is presented for the electroweak production of a W boson, a photon, and two jets in proton-proton collisions. The W boson decays are selected by requiring one identified electron or muon and an imbalance in transverse momentum. The two jets are required to have a high dijet mass and a large separation in pseudorapidity. The measurement is based on data collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The observed (expected) significance for this process is 4.9 (4.6) standard deviations. After combining with previously reported CMS results at 8 TeV, the observed (expected) significance is 5.3 (4.8) standard deviations. The cross section for the electroweak Wγjj production in a restricted fiducial region is measured as 20.4±4.5fb and the total cross section for Wγ production in association with 2 jets in the same fiducial region is 108±16fb. All results are in good agreement with recent theoretical predictions. Constraints are placed on anomalous quartic gauge couplings in terms of dimension-8 effective field theory operators. T2 - Physics Letters B T1 - Observation of electroweak production of Wγ with two jets in proton-proton collisions at TeV VL - 811 C SP - 135988 DO - 10.1016/j.physletb.2020.135988 ER -
@article{ author = "Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Bergauer, T. and Adžić, Petar and Ćirković, Predrag and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan", year = "2020", abstract = "A first observation is presented for the electroweak production of a W boson, a photon, and two jets in proton-proton collisions. The W boson decays are selected by requiring one identified electron or muon and an imbalance in transverse momentum. The two jets are required to have a high dijet mass and a large separation in pseudorapidity. The measurement is based on data collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The observed (expected) significance for this process is 4.9 (4.6) standard deviations. After combining with previously reported CMS results at 8 TeV, the observed (expected) significance is 5.3 (4.8) standard deviations. The cross section for the electroweak Wγjj production in a restricted fiducial region is measured as 20.4±4.5fb and the total cross section for Wγ production in association with 2 jets in the same fiducial region is 108±16fb. All results are in good agreement with recent theoretical predictions. Constraints are placed on anomalous quartic gauge couplings in terms of dimension-8 effective field theory operators.", journal = "Physics Letters B", title = "Observation of electroweak production of Wγ with two jets in proton-proton collisions at TeV", volume = "811 C", pages = "135988", doi = "10.1016/j.physletb.2020.135988" }
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, P., Ćirković, P., Đorđević, M., Milenović, P.,& Milošević, J.. (2020). Observation of electroweak production of Wγ with two jets in proton-proton collisions at TeV. in Physics Letters B, 811 C, 135988. https://doi.org/10.1016/j.physletb.2020.135988
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Adžić P, Ćirković P, Đorđević M, Milenović P, Milošević J. Observation of electroweak production of Wγ with two jets in proton-proton collisions at TeV. in Physics Letters B. 2020;811 C:135988. doi:10.1016/j.physletb.2020.135988 .
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Adžić, Petar, Ćirković, Predrag, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Observation of electroweak production of Wγ with two jets in proton-proton collisions at TeV" in Physics Letters B, 811 C (2020):135988, https://doi.org/10.1016/j.physletb.2020.135988 . .