Measurement of the ratio of prompt χ c to J/ψ production in pp collisions at √s=7 TeV
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Abstract
The prompt production of charmonium χ c and J/ψ states is studied in proton-proton collisions at a centre-of-mass energy of s=7 TeV at the Large Hadron Collider. The χ c and J/ψ mesons are identified through their decays χ c→J/ψγ and J/ψ→μ +μ - using 36 pb -1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J/ψ, σ(χ c→J/ψγ)/σ(J/ψ), is determined as a function of the J/ψ transverse momentum in the range 2
Bibliographical metadata
| Original language | English |
|---|---|
| Pages (from-to) | 431-440 |
| Number of pages | 9 |
| Journal | Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 718 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 5 Dec 2012 |