Measurement of the Λb polarization and angular parameters in Λb → J/ψΛ decays from pp collisions at √s=7 and 8 TeV

dc.contributor.author	CMS Collaboration
dc.date.accessioned	2024-11-25T05:42:04Z
dc.date.available	2024-11-25T05:42:04Z
dc.date.issued	2018
dc.identifier.issn	2470-0010
dc.identifier.uri	http://dspace.adiyaman.edu.tr:8080/xmlui/handle/20.500.12414/5471
dc.description.abstract	An 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.	tr
dc.language.iso	en	tr
dc.publisher	AMER PHYSICAL SOC	tr
dc.subject	WEAK DECAYS	tr
dc.title	Measurement of the Λb polarization and angular parameters in Λb → J/ψΛ decays from pp collisions at √s=7 and 8 TeV	tr
dc.type	Article	tr
dc.contributor.department	Yerevan Phys Inst, Yerevan, Armenia	tr
dc.identifier.issue	7	tr
dc.identifier.volume	97	tr
dc.source.title	PHYSICAL REVIEW D	tr