{ "id": "1810.11657", "version": "v1", "published": "2018-10-27T14:52:07.000Z", "updated": "2018-10-27T14:52:07.000Z", "title": "On anomalous triple gauge boson couplings in $ZZ$ production at LHC with $Z$ boson spin observables", "authors": [ "Rafiqul Rahaman", "Ritesh K. Singh" ], "comment": "13 Pages, 8 figures", "categories": [ "hep-ph", "hep-ex" ], "abstract": "We study anomalous couplings among neutral gauge bosons in $ZZ$ production at LHC for $\\sqrt{s}=13$ TeV in $4$-lepton final state. We use cross section at $M_{4l}>1$ TeV and polarization of $Z$ boson to study the sensitivity on anomalous coupling and do a full markov-chain--monte-carlo (MCMC) analysis over parameter space to extract simultaneous limits on them for luminosities $35.9$ fb$^{-1}$, $150$ fb$^{-1}$, $300$ fb$^{-1}$ and $1000$ fb$^{-1}$. The $CP$-even polarization asymmetry $A_{x^2-y^2}$ is sensitive mainly to the $CP$-odd couplings $f_4^{Z/\\gamma}$ (quadratically) providing a tools to identify $CP$-odd interaction at LHC. The expected simultaneous limits on couplings at $35.9$ fb$^{-1}$ are $\\sim1\\times 10^{-3}$ and at $1000$ fb$^{-1}$ they are $\\sim 0.5\\times 10^{-3}$.", "revisions": [ { "version": "v1", "updated": "2018-10-27T14:52:07.000Z" } ], "analyses": { "keywords": [ "anomalous triple gauge boson couplings", "boson spin observables", "production", "lepton final state", "neutral gauge bosons" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable" } } }