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J/ψ production in pp̄ collisions at √s = 1.8 TeV

Abstract:

We have studied J/ψ production in pp̄ collisions at √s = 1.8 TeV with the DØ detector at Fermilab using μ+/μ- data. We have measured the inclusive J/ψ production cross section as a function of J/ψ transverse momentum, pT. For the kinematic range pT > 8 GeV/c and |η\ < 0.6 we obtain σ(pp̄ → J/ψ + X) ·Br(J/ψ → μ+μ-) = 2.08 ± 0.17(stat) ± 0.46(syst) nb. Using the muon impact parameter we have estimated the fraction of J/ψ mesons coming from B meson decays to be fb = 0.35 ± 0.09(stat)±0.10(...

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Abolins, M More by this author
Acharya, BS More by this author
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Journal:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume:
370
Issue:
1-2
Pages:
239-248
Publication date:
1996-03-07
ISSN:
0370-2693
URN:
uuid:c42e08bd-a6bb-4969-a1e1-1d106433cdc0
Source identifiers:
180648
Local pid:
pubs:180648
Language:
English
Keywords:

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