Article detail · 2012
Measurement of the Lambda b cross section and the Lambda over bar b to Lambda b ratio with J psi Lambda decays in pp collisions at root s 7TeV CMS Collaboration
Journal
PHYSICS LETTERS BISSN 0370-2693
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- Year
- 2012
- Type
- article
Data source split
- YÖKSİS YÖKSİS article record
- YÖKSİS venue PHYSICS LETTERS B
- Catalog match (ISSN) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
- OpenAlex OpenAlex enrichment (abstract, citations, topics)
Abstract
OpenAlex · lv
The Λb differential production cross section and the cross section ratio σ(Λ¯b)/σ(Λb) are measured as functions of transverse momentum pTΛb and rapidity |yΛb| in pp collisions at s=7 TeV using data collected by the CMS experiment at the LHC. The measurements are based on Λb decays reconstructed in the exclusive final state J/ψΛ, with the subsequent decays J/ψ→μ+μ− and Λ→pπ, using a data sample corresponding to an integrated luminosity of 1.9 fb−1. The product σ(Λb)×B(Λb→J/ψΛ) versus pTΛb falls faster than that of b mesons. The measured value of σ(Λb)×B(Λb→J/ψΛ) for pTΛb>10 GeV and |yΛb|<2.0 is 1.16±0.06±0.12nb, and the integrated σ(Λ¯b)/σ(Λb) ratio is 1.02±0.07±0.09, where the uncertainties are statistical and systematic, respectively.
Topics
Citations
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78 citations
OpenAlex cited_by_count (cache / database)
32 publications in the local catalog that cite this work (OpenAlex reference match; not the full global list).
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