54,104 research outputs found
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)
Gavin Turk
No full textPart of the YBA (Young British Artist) movement of the mid-1990s, Gavin Turk has created pioneering works of contemporary art using materials such as painted bronze, wax, and garbage. His installations, sculptures, and images refer to issues of authorship, authenticity, and identity and toy with the art historical establishment. Featuring numerous color illustrations, the volume includes Turk's major works since the early 1990s as well as three texts. One of these, an original essay by Iain Sinclair, contextualizes the artist's work under the umbrella of psycho-geography, including the impact of London on Turk's persona
Comment on "Measurement of quantum states of neutrons in the Earth's gravitational field"
No full textIn the paper by Nesvizhevsky et al. [Phys. Rev. D 67, 102002 (2003)], it is argued that the lowest quantum state of neutrons in the Earth's gravitational field has been experimentally identified. While this is most likely correct, it is imperative to investigate all alternative explanations of the result in order to close all loopholes, as it is the first experiment ever claimed to have observed gravitational quantum states. Here we show that geometrical effects in the experimental setup can mimic the results attributed to gravity. Modifications of the experimental setup to close these possible loopholes are suggested
Multivariate probability matching of Satellite Infrared and Microwave Radiometric Measurements for Rainfall Retrieval at the Geostationary Scale
No full textCLIVAR in the Pacific Ocean (abstract of paper presented at ASLO/AGU Ocean Sciences Meeting, Honolulu, HI, 11-15 Feb 2002)
No full textNecrotizing pulmonary arteritis in a dog with patent ductus arteriosus
No full textRE: 7 ref.; SC: ZA; CA; VE; 0ISource type: Electronic(1) http://upei-resolver.asin-risa.ca?sid=SP:CABI&id=pmid:&id=&issn=0022-4510&isbn=&volume=22&issue=9&spage=603&pages=603-608&date=1981&title=Journal%20of%20Small%20Animal%20Practice&atitle=Necrotizing%20pulmonary%20arteritis%20in%20a%20dog%20with%20patent%20ductus%20arteriosus.&aulast=Turk&pid=%3Cauthor%3ETurk%2c%20J%20R%3bMiller%2c%20L%20M%3bMiller%2c%20J%20B%3bSande%2c%20R%20D%3C%2Fauthor%3E%3CAN%3E19812293235%3C%2FAN%3E%3CDT%3EJournal%20article%3C%2FDT%3
Measurement of the B0–B0 oscillation frequency Δmd with the decays B0→D−π+ and B0→ J/ψK∗0
No full textThe B
0
–B
0
oscillation frequency Δmd is measured by the LHCb experiment using a dataset corresponding
to an integrated luminosity of 1.0 fb−1
of proton–proton collisions at √
s = 7 TeV, and is found to be
Δmd
=0.5156±0.0051 (stat.)±0.0033 (syst.) ps−1
. The measurement is based on results from analyses
of the decays B
0
→ D
−π
+ (D
−
→ K
+π
−π
−) and B
0
→ J/ψK
∗0
(J/ψ →μ
+μ
−,K
∗0
→ K
+π
−) and
their charge conjugated modes
Search for the rare decays J/y -> D-s(-) rho(+) and J/psi -> <(D)over bar(0)<(K)over bar*(0)
No full textA search for the rare decays of J/psi -> D-S(-) rho(+) + c.c. and J/psi -> D-S(-)rho(+) + c.c.) <1.3 x 10(-5) and beta(J/psi -
Attention and awareness: Representation of visuomotor space in split-brain patients
No full textSupporting materials for Dosso, J. A., Chua, R., Weeks, D. J., Turk, D. J., & Kingstone, A. (2018). Attention and awareness: Representation of visuomotor space in split-brain patients. Cortex doi: 10.1016/j.cortex.2018.08.02
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
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