Szczegóły publikacji
Opis bibliograficzny
Observation of same-sign WW production from double parton scattering in proton-proton collisions at $\sqrt{s}$=13 TeV / A. Tumasyan, [et al.], V. AVATI, L. GRZANKA, M. MALAWSKI, [et al.] // Physical Review Letters ; ISSN 0031-9007. — 2023 — vol. 131 iss. 9 art. no. 091803, s. 091803-1–091803-20. — Bibliogr.s. 091803-5–091803-8, Abstr. — Publikacja dostępna online od: 2023-09-01
Autorzy (2393)
- AGHAvati Valentina
- AGHGrzanka Leszek
- AGHMalawski Maciej
- Tumasyan Armen
Dane bibliometryczne
| ID BaDAP | 150494 |
|---|---|
| Data dodania do BaDAP | 2024-01-10 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.131.091803 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
The first observation of the production of W±W± bosons from double parton scattering processes using same-sign electron-muon and dimuon events in proton-proton collisions is reported. The data sample corresponds to an integrated luminosity of 138 fb−1 recorded at a center-of-mass energy of 13 TeV using the CMS detector at the CERN LHC. Multivariate discriminants are used to distinguish the signal process from the main backgrounds. A binned maximum likelihood fit is performed to extract the signal cross section. The measured cross section for production of same-sign W bosons decaying leptonically is 80.7±11.2(stat) +9.5−8.6(syst)±12.1(model) fb, whereas the measured fiducial cross section is 6.28±0.81(stat)±0.69(syst)±0.37(model) fb. The observed significance of the signal is 6.2 standard deviations above the background-only hypothesis.