Szczegóły publikacji
Opis bibliograficzny
Observation of electroweak production of $W_{\gamma}$ with two jets in proton-proton collisions at $\sqrt{s}=13$ TeV / A. M. Sirunyan, [et al.], V. AVATI, L. GRZANKA, M. MALAWSKI, [et al.] // Physics Letters. B ; ISSN 0370-2693. — 2020 — vol. 811 art. no. 135988, s. 1–27. — Bibliogr. s. 9–10, Abstr. — CMS Collaboration. — Publikacja dostępna online od: 2020-12-01
Autorzy (2362)
- AGHAvati Valentina
- AGHGrzanka Leszek
- AGHMalawski Maciej
- Sirunyan A. M.
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 132253 |
|---|---|
| Data dodania do BaDAP | 2021-01-21 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.physletb.2020.135988 |
| Rok publikacji | 2020 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physics Letters, B |
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 W gamma jj production in a restricted fiducial region is measured as 20.4 +/- 4.5 fb and the total cross section for W gamma production in association with 2 jets in the same fiducial region is 108 +/- 16 fb. 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.