67,135 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′

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    First 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 Carl Hayden to M. J. Riordan

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    Letter from Carl Hayden to M. J. Riordan expressing his support for Coconino County in turning over the Bright Angel Trail to the federal government

    Letter from M. J. Riordan, Arizona Lumber and Timber Company, to Carl Hayden

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    Letter from M. J. Riordan to Carl Hayden expressing his opposition to the federal government's takeover of Bright Angel Trail

    Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays

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    This Letter reports a measurement of the CP violation observables SJ/ψK0S and CJ/ψK0S in the decay channel B0→J/ψK0S performed with 1.0 fb−1 of pp collisions at s√=7 TeV collected by the LHCb experiment. The fit to the data yields SJ/ψK0S=0.73±0.07(stat)±0.04(syst) and CJ/ψK0S=0.03±0.09(stat)±0.01(syst). Both values are consistent with the current world averages and within expectations from the Standard Model

    Author Correction: Establishment and equilibrium levels of deleterious mutations in large populations (Scientific Reports, (2019), 9, 1, (10384), 10.1038/s41598-019-46803-7)

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    The original version of this Article contained errors. Affiliations 1 and 2 were reversed. Secondly, Affiliation 7 was incorrectly given as ‘Institute for Cellular and Molecular Medicine, Department of Immunology, and SAMRC Extramural Unit for Stem Cell Research and Therapy, Faculty of Health Sciences, University of Pretoria, Pretoria, 0084, South Africa’. Thirdly, an affiliation was omitted for the author Michael S. Pepper, which is now listed as Affiliation 8. Fourthly, Affiliation 1 was omitted for the author Johan W. Viljoen. Finally, Augustinus J. van Zyl was incorrectly affiliated with ‘Institute for Maternal and Child Health, IRCCS ‘Burlo Garofolo’, Trieste, Italy.’ The correct author affiliations are listed below: Affiliation 1: Department of Electrical, Electronic and Computer Engineering, EBIT, University of Pretoria, Pretoria 0028, South Africa Johan W. Viljoen and J. Pieter de Villiers Affiliation 2: Development, Research and Technology Department, Hensoldt Optronics, Centu..

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

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    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 / 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

    J. M. Coetzee in Context and Theory

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    Nobel Laureate and the first author to win the Booker Prize twice, J.M. Coetzee is perhaps the world's leading living novelist writing in English. Including an international roster of world leading critics and novelists, and drawing on new research, this innovative book analyses the whole range of Coetzee's work, from his most recent novels through his memoirs and critical writing. It offers a range of perspectives on his relationship with the historical, political, cultural and social context of South Africa. It also contextualises Coetzee's work in relation to his literary influences, colonial and post-colonial history, the Holocaust and colonial genocides, the 'politics' and meaning of the Nobel prize in South Africa and Coetzee's very public move from South Africa to Australia. Including a major unpublished essay by leading South African novelist André Brink, this book offers the most up-to-date study of Coetzee's work currently available.Intro -- Contents -- Acknowledgements -- Biographies -- Introduction -- Part I: Context -- 1. Post-Apartheid Literature: A Personal View -- 2. Elizabeth Costello as Post-Apartheid Text -- 3. Coetzee and Gordimer -- 4. Wordsworth and the Recollection of South Africa -- 5. Border Crossings: Self and Text -- 6. Sex, Comedy and Influence: Coetzee's Beckett -- Part II: Theory -- 7. Writing Desire Responsibly -- 8. Literature, History and Folly -- 9. Queer Bodies -- 10. Eating (Dis)Order: From Metaphoric Cannibalism to Cannibalistic Metaphors -- 11. Acts of Mourning -- 12. Sublime Abjection -- 13. Authenticity: Diaries, Chronicles, Records as Index-Simulations -- 14. Disrupting Inauthentic Readings: Coetzee's Strategies -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- X -- YNobel Laureate and the first author to win the Booker Prize twice, J.M. Coetzee is perhaps the world's leading living novelist writing in English. Including an international roster of world leading critics and novelists, and drawing on new research, this innovative book analyses the whole range of Coetzee's work, from his most recent novels through his memoirs and critical writing. It offers a range of perspectives on his relationship with the historical, political, cultural and social context of South Africa. It also contextualises Coetzee's work in relation to his literary influences, colonial and post-colonial history, the Holocaust and colonial genocides, the 'politics' and meaning of the Nobel prize in South Africa and Coetzee's very public move from South Africa to Australia. Including a major unpublished essay by leading South African novelist André Brink, this book offers the most up-to-date study of Coetzee's work currently available.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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