86,873 research outputs found
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe 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 / ψ γ 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 / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
The management of spondylolysis and spondylolisthesis
No full textAbstract not availableBrian J. C. Freeman and Ujjwal K. Debnat
Flower garden quilt by Ethel Rose Freeman Ramsey
No full textImage of Flower Garden quilt created in the late 1930\u27s by Ethel Rose Freeman Ramsey. Also includes questionnaires describing the quilt completed by Earl C. Ramsey as part of the Utah Quilt Guild\u27s documentation days held from 1988-1994
Immediate biomechanical effects of lumbar posterior dynamic stabilisation
No full textAbstract not availableBrian J. C. Freeman and Caspar E. W. Aylot
Regarding Constance Freeman interview
No full textGuest: Constance FreemanHost: Ken RockburnConstance J. Freeman, Regional Director of IDRC's East and Southern Africa Regional Office, discusses NEPA
Adjacent level disc biomechanics
No full textBrian J. C. Freeman and Donal S. McNallyhttp://trove.nla.gov.au/work/3432496
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
Letter from C. B. Jeter to Mr. J. N. Freeman, Mr. W. A. Flowers, Dr. E. N. Norris, and Mr. S. B. Simmons
No full textLetter from C. B. Jeter to Mr. J. N. Freeman, Mr. W. A. Flowers, Dr. E. N. Norris, and Mr. S. B. Simmons, concerning baseball game and interregional conference
Efficacy of IDET and PIRFT for the treatment of discogenic low back pain
No full textAbstract not availableBrian J. C. Freema
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