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An analysis of the bottom baryon decay Λb → J=ψð→ μþμ−ÞΛð→ pπ−Þ is performed to measure the Λb polarization and three angular parameters in data from pp collisions at ffiffi… Click to show full abstract
An analysis of the bottom baryon decay Λb → J=ψð→ μþμ−ÞΛð→ pπ−Þ is performed to measure the Λb polarization and three angular parameters in data from pp collisions at ffiffi s p 1⁄4 7 and 8 TeV, collected by the CMS experiment at the Large Hadron Collider. The Λb polarization is measured to be 0.00 0.06ðstatÞ 0.06ðsystÞ and the parity-violating asymmetry parameter is determined to be 0.14 0.14ðstatÞ 0.10ðsystÞ. The measurements are compared to various theoretical predictions, including those from perturbative quantum chromodynamics.
Keywords:
polarization angular;
angular parameters;
parameters decays;
polarization;
decays collisions;
measurement polarization
Journal Title: Physical Review D
Year Published: 2018
Link to full text (if available)
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Journal Title: Physical Review D
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!