Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7678
Title: Measurement of the Lambda(b) polarization and angular parameters in Lambda(b) -> J/psi Lambda decays from pp collisions at root s=7 and 8 TeV
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Particle decays
Tellurium compounds
Readout systems
Quantum chromodynamics
Issue Date: Apr-2018
Publisher: American Physical Society
Source: Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J. ...CMS Collaboration (2018). Measurement of the Λb polarization and angular parameters in Λb → J=ψΛ decays from pp collisions at √s = 7 and 8 TeV. Physical Review D, 97(7). doi:10.1103/PhysRevD.97.072010
Abstract: An analysis of the bottom baryon decay Λb→J/ψ(→μ+μ-)Λ(→pπ-) is performed to measure the Λb polarization and three angular parameters in data from pp collisions at s=7 and 8 TeV, collected by the CMS experiment at the Large Hadron Collider. The Λb 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.
URI: https://doi.org/10.1103/PhysRevD.97.072010
https://hdl.handle.net/11147/7678
ISSN: 2470-0010
2470-0010
2470-0029
Appears in Collections:Mathematics / Matematik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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