Yetkin, Elif Aslı2020-11-052020-11-052018-04-171550-23681550-7998https://hdl.handle.net/11411/2444https://doi.org/10.1103/PhysRevD.97.072010An analysis of the bottom baryon decay Lambda(b) -> J/psi(-> mu(+)mu(-))Lambda( -> p pi(-)) is performed to measure the Lambda(b) polarization and three angular parameters in data from pp collisions at root s = 7 and 8 TeV, collected by the CMS experiment at the Large Hadron Collider. The Lambda(b) polarization is measured to be 0.00 +/- 0.06(stat) +/- 0.06(syst) and the parity-violating asymmetry parameter is determined to be 0.14 +/- 0.14(stat) +/- 0.10(syst). The measurements are compared to various theoretical predictions, including those from perturbative quantum chromodynamics.eninfo:eu-repo/semantics/openAccessWEAK DECAYSMeasurement of the Lambda(b) polarization and angular parameters in Lambda(b) -> J/psi Lambda decays from pp collisions at root s=7 and 8 TeVArticle2-s2.0-8504680631110.1103/PhysRevD.97.072010Q1WOS:000430163500001