Search for anomalous couplings in boosted WW/WZ→ℓνqq‾ production in proton–proton collisions at s=8 TeV

• Main Authors: Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Asilar, Ece, Bergauer, Thomas, Md. Ali, Mohd. Adli
• Format: Article
• Language: English; English
• Published: Elsevier 2017
• Subjects: Q Science (General); QC Physics
• Online Access: http://irep.iium.edu.my/63058/1/63058_Search%20for%20anomalous%20couplings%20in%20boosted_article.pdf; http://irep.iium.edu.my/63058/2/63058_Search%20for%20anomalous%20couplings%20in%20boosted_scopus.pdf; http://irep.iium.edu.my/63058/; https://ac.els-cdn.com/S0370269317304690/1-s2.0-S0370269317304690-main.pdf?_tid=6388d2e5-1065-4620-be07-f350b50c5c33&acdnat=1521973332_88123b1809bfe21b2d24d6d573eb8b1b

This Letter presents a search for new physics manifested as anomalous triple gauge boson couplings in WW and WZ diboson production in proton–proton collisions. The search is performed using events containing a W boson that decays leptonically and a W or Z boson whose decay products are merged into a single reconstructed jet. The data, collected at √s = 8 TeV with the CMS detector at the LHC, correspond to an integrated luminosity of 19 fb−1. No evidence for anomalous triple gauge couplings is found and the following 95% confidence level limits are set on their values: λ ([−0.011, 0.011]), �κγ ([−0.044, 0.063]), and �gZ 1 ([−0.0087, 0.024]). These limits are also translated into their effective field theory equivalents: cWWW/ 2 ([−2.7, 2.7] TeV−2), cB/ 2 ([−14, 17] TeV−2), and cW/ 2 ([−2.0, 5.7] TeV−2).