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  1. No Access

    Article

    Brans-dicke cosmology and the cosmological constant: The spectrum of vacuum solutions

    We study the Brans-Dicke vacuum field equations in the presence of a cosmological term A. Considering a Friedmann-Robertson-Walker metric with flat spatial sections (k=0), we provide a qualitative analysis of the...

    C. Romero, A. Barros in Astrophysics and Space Science (1992)

  2. No Access

    Article

    The equivalence between General Relativity and scalar-tensor theories of gravity

    The equivalence between General Relativity and scalar-tensor theories is discussed. Vacuum solutions of the Brans-Dicke theory of gravity are shown to behave ambiguously whenever attempts are made to interpret...

    C. Romero, A. Barros in Astrophysics and Space Science (1993)

  3. No Access

    Article

    Brans-dicke vacuum solutions and the cosmological constant: A qualitative analysis

    We investigate Brans-Dicke vacuum solutions in the presence of a cosmological constant A from the point of view of dynamical system theory. Assuming a Friedmann-Robertson-Walker metric we plot the phase diagra...

    C. Romero, A. Barros in General Relativity and Gravitation (1993)

  4. Article

    Open Access

    Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC

    DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6 

    A. Abed Abud, B. Abi, R. Acciarri, M. A. Acero… in The European Physical Journal C (2022)

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  5. Article

    Open Access

    Separation of track- and shower-like energy deposits in ProtoDUNE-SP using a convolutional neural network

    Liquid argon time projection chamber detector technology provides high spatial and calorimetric resolutions on the charged particles traversing liquid argon. As a result, the technology has been used in a numb...

    A. Abed Abud, B. Abi, R. Acciarri, M. A. Acero… in The European Physical Journal C (2022)

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  6. Article

    Open Access

    Reconstruction of interactions in the ProtoDUNE-SP detector with Pandora

    The Pandora Software Development Kit and algorithm libraries provide pattern-recognition logic essential to the reconstruction of particle interactions in liquid argon time projection chamber detectors. Pandor...

    A. Abed Abud, B. Abi, R. Acciarri, M. A. Acero… in The European Physical Journal C (2023)

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  7. No Access

    Article

    A local rigidity theorem for minimal two-spheres in charged time-symmetric initial data set

    The purpose of this article is to prove that, under suitable constraints on time-symmetric initial data set for the Einstein–Maxwell equation M, if ...

    H. Baltazar, A. Barros, R. Batista in Letters in Mathematical Physics (2023)