79,515 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)
FIGURE 2. Orchidaceae from Honduras. A. Malaxis lepanthiflora. B. M. parthonii. C. Masdevallia adamsii. D. M. chontalensis. E. Maxillaria reichenheimiana. F. Maxillariella cobanensis. G. M. elatior. H. M. tenuifolia. I. M. tuerckheimii. J. M. variabilis. K. Mormodes horichii. L. M. lineata. M. M. nagelii. N. M. sotoana. O. Mormolyca moralesii. P in An Updated Checklist of the Orchidaceae of Honduras
No full textFIGURE 2. Orchidaceae from Honduras. A. Malaxis lepanthiflora. B. M. parthonii. C. Masdevallia adamsii. D. M. chontalensis. E. Maxillaria reichenheimiana. F. Maxillariella cobanensis. G. M. elatior. H. M. tenuifolia. I. M. tuerckheimii. J. M. variabilis. K. Mormodes horichii. L. M. lineata. M. M. nagelii. N. M. sotoana. O. Mormolyca moralesii. P. Myrmecophila brysiana. Photographs by the authors, except F, O (A. Vindel).Published as part of Vega, Hermes, Cetzal-Ix, William, Mó, Edgar, Romero-Soler, Katya J. & Basu, Saikat K., 2022, An Updated Checklist of the Orchidaceae of Honduras, pp. 1-80 in Phytotaxa 562 (1) on page 17, DOI: 10.11646/phytotaxa.562.1.1, http://zenodo.org/record/707369
Recensiones [Revista de Historia Económica Año XXI otoño-invierno 2003 n. 3 pp. 657-694]
No full textEditada en la Fundación SEPIDíaz Morlán, P. Los Ybarra (Por Carlos Larrinaga).--
Lana Berasain, J. M. (ed.). En torno a la Navarra del siglo XX (Por Gonzalo Sanz-Magallón).--
Peiro Arroyo, A. Tiempo de industria. Las Tierras Altas turolenses, de la riqueza a la despoblación (Por José Ramón Moreno).--
Townson, N. La República que no pudo ser. La política de centro en España (1931-1936) (Por Albert Girona).--
Avallé, B.; Naranjo, C , y Santamaría, A. La América española (1763-1898) (Por Pedro Pérez).--
Sánchez Santiró, E. Azúcar y Poder: estructura socioeconómica de las alcaldías mayores de Cuemavaca y Cuantía de Amilpas, 1730-1821 (Por Carlos Marichal).--
Jiménez Soler, G. Las empresas de Cuba, 1958 (Por Antonio Santamaría).--
Zaratiegui, J. M. Alfred Marshall y la teoría económica del empresario (Por María Blanco).--
Verdón, N. Rural tornen Workers in Nineteenth-Century England: Gender, Work and Wages (Por Enriqueta Camps).--
Psalidopoulos, M., y Mata, M. E.(eds.). Economic Thought and Economic Policy in Less Developed Europe. The Nineteenth Century (Por Juan Zabalza)Publicad
Avant-propos
No full textAttonaty J.-M., Clément Jacques, Soler Louis-Georges. Avant-propos. In: Économie rurale. N°206, 1991. Nouvelles approches en gestion de l'entreprise agricole. Session des 29 et 30 Novembre 1990 organisée par Jean-Marie Attonaty (INRA-ESR), Jacques Clément (DGER) et Louis-Georges Soler (INRA-SAD) sous la direction de Jean-Marie Attonaty, Jacques Clément et Louis-Georges Soler. p. 3
Avant-propos
No full textAttonaty J.-M., Clément Jacques, Soler Louis-Georges. Avant-propos. In: Économie rurale. N°206, 1991. Nouvelles approches en gestion de l'entreprise agricole. Session des 29 et 30 Novembre 1990 organisée par Jean-Marie Attonaty (INRA-ESR), Jacques Clément (DGER) et Louis-Georges Soler (INRA-SAD) sous la direction de Jean-Marie Attonaty, Jacques Clément et Louis-Georges Soler. p. 3
Letter from Carl Hayden to M. J. Riordan
No full textLetter from Carl Hayden to M. J. Riordan expressing his support for Coconino County in turning over the Bright Angel Trail to the federal government
Pleurothallis hawkinsii J. M. H. Shaw, Orchid Rev.
No full textPleurothallis hawkinsii (Luer & Endara) J.M.H.Shaw, Orchid Rev. 122: 77. 2014. Voucher: T. Hawkins et al. 126 (EAP, MO).Published as part of Vega, Hermes, Cetzal-Ix, William, Mó, Edgar, Romero-Soler, Katya J. & Basu, Saikat K., 2022, An Updated Checklist of the Orchidaceae of Honduras, pp. 1-80 in Phytotaxa 562 (1) on page 66, DOI: 10.11646/phytotaxa.562.1.1, http://zenodo.org/record/707369
Christensonella uncata Szlach., Mytnik, Gorniak & Smiszek, Polish Bot. J.
No full textChristensonella uncata (Lindl.) Szlach., Mytnik, Górniak & Śmiszek, Polish Bot. J. 51(1): 59. 2006. Voucher: J. Hernández & M. Hernández 5293 (EAP, MO).Published as part of Vega, Hermes, Cetzal-Ix, William, Mó, Edgar, Romero-Soler, Katya J. & Basu, Saikat K., 2022, An Updated Checklist of the Orchidaceae of Honduras, pp. 1-80 in Phytotaxa 562 (1) on page 42, DOI: 10.11646/phytotaxa.562.1.1, http://zenodo.org/record/707369
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
Acianthera pantasmi Pridgeon & M. W. Chase, Lindleyana
No full textAcianthera pantasmi (Rchb.f.) Pridgeon & M.W.Chase, Lindleyana 16: 245. 2001. Voucher: T. Hawkins & M. Merello 728 (MO).Published as part of Vega, Hermes, Cetzal-Ix, William, Mó, Edgar, Romero-Soler, Katya J. & Basu, Saikat K., 2022, An Updated Checklist of the Orchidaceae of Honduras, pp. 1-80 in Phytotaxa 562 (1) on page 38, DOI: 10.11646/phytotaxa.562.1.1, http://zenodo.org/record/707369
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