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Measurement of the ratio of prompt χ c to J/ψ production in pp collisions at √s=7 TeV

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

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Authors


Abellan Beteta, C More by this author
Adinolfi, M More by this author
Adrover, C More by this author
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Journal:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume:
718
Issue:
2
Pages:
431-440
Publication date:
2012-12-05
DOI:
ISSN:
0370-2693
URN:
uuid:3f47b3ec-404d-49d0-a068-5fcf0ef042a0
Source identifiers:
366709
Local pid:
pubs:366709

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